yading@11: /*
yading@11:  * MOV, 3GP, MP4 muxer
yading@11:  * Copyright (c) 2003 Thomas Raivio
yading@11:  * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>
yading@11:  * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
yading@11:  *
yading@11:  * This file is part of FFmpeg.
yading@11:  *
yading@11:  * FFmpeg is free software; you can redistribute it and/or
yading@11:  * modify it under the terms of the GNU Lesser General Public
yading@11:  * License as published by the Free Software Foundation; either
yading@11:  * version 2.1 of the License, or (at your option) any later version.
yading@11:  *
yading@11:  * FFmpeg is distributed in the hope that it will be useful,
yading@11:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@11:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@11:  * Lesser General Public License for more details.
yading@11:  *
yading@11:  * You should have received a copy of the GNU Lesser General Public
yading@11:  * License along with FFmpeg; if not, write to the Free Software
yading@11:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@11:  */
yading@11: 
yading@11: #include "movenc.h"
yading@11: #include "avformat.h"
yading@11: #include "avio_internal.h"
yading@11: #include "riff.h"
yading@11: #include "avio.h"
yading@11: #include "isom.h"
yading@11: #include "avc.h"
yading@11: #include "libavcodec/get_bits.h"
yading@11: #include "libavcodec/put_bits.h"
yading@11: #include "libavcodec/vc1.h"
yading@11: #include "internal.h"
yading@11: #include "libavutil/avstring.h"
yading@11: #include "libavutil/intfloat.h"
yading@11: #include "libavutil/mathematics.h"
yading@11: #include "libavutil/opt.h"
yading@11: #include "libavutil/dict.h"
yading@11: #include "rtpenc.h"
yading@11: #include "mov_chan.h"
yading@11: 
yading@11: #undef NDEBUG
yading@11: #include <assert.h>
yading@11: 
yading@11: static const AVOption options[] = {
yading@11:     { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
yading@11:     { "rtphint", "Add RTP hint tracks", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_RTP_HINT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
yading@11:     { "moov_size", "maximum moov size so it can be placed at the begin", offsetof(MOVMuxContext, reserved_moov_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, 0 },
yading@11:     { "empty_moov", "Make the initial moov atom empty (not supported by QuickTime)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_EMPTY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
yading@11:     { "frag_keyframe", "Fragment at video keyframes", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_KEYFRAME}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
yading@11:     { "separate_moof", "Write separate moof/mdat atoms for each track", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SEPARATE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
yading@11:     { "frag_custom", "Flush fragments on caller requests", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_CUSTOM}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
yading@11:     { "isml", "Create a live smooth streaming feed (for pushing to a publishing point)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_ISML}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
yading@11:     { "faststart", "Run a second pass to put the moov at the beginning of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FASTSTART}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
yading@11:     FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
yading@11:     { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
yading@11:     { "iods_audio_profile", "iods audio profile atom.", offsetof(MOVMuxContext, iods_audio_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
yading@11:     { "iods_video_profile", "iods video profile atom.", offsetof(MOVMuxContext, iods_video_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
yading@11:     { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
yading@11:     { "min_frag_duration", "Minimum fragment duration", offsetof(MOVMuxContext, min_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
yading@11:     { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
yading@11:     { "ism_lookahead", "Number of lookahead entries for ISM files", offsetof(MOVMuxContext, ism_lookahead), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
yading@11:     { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
yading@11:     { NULL },
yading@11: };
yading@11: 
yading@11: #define MOV_CLASS(flavor)\
yading@11: static const AVClass flavor ## _muxer_class = {\
yading@11:     .class_name = #flavor " muxer",\
yading@11:     .item_name  = av_default_item_name,\
yading@11:     .option     = options,\
yading@11:     .version    = LIBAVUTIL_VERSION_INT,\
yading@11: };
yading@11: 
yading@11: //FIXME support 64 bit variant with wide placeholders
yading@11: static int64_t update_size(AVIOContext *pb, int64_t pos)
yading@11: {
yading@11:     int64_t curpos = avio_tell(pb);
yading@11:     avio_seek(pb, pos, SEEK_SET);
yading@11:     avio_wb32(pb, curpos - pos); /* rewrite size */
yading@11:     avio_seek(pb, curpos, SEEK_SET);
yading@11: 
yading@11:     return curpos - pos;
yading@11: }
yading@11: 
yading@11: static int supports_edts(MOVMuxContext *mov)
yading@11: {
yading@11:     // EDTS with fragments is tricky as we dont know the duration when its written
yading@11:     return (mov->use_editlist<0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) || mov->use_editlist>0;
yading@11: }
yading@11: 
yading@11: static int is_co64_required(const MOVTrack *track)
yading@11: {
yading@11:     int i;
yading@11: 
yading@11:     for (i = 0; i < track->entry; i++) {
yading@11:         if (!track->cluster[i].chunkNum)
yading@11:             continue;
yading@11:         if (track->cluster[i].pos + track->data_offset > UINT32_MAX)
yading@11:             return 1;
yading@11:     }
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: /* Chunk offset atom */
yading@11: static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int i;
yading@11:     int mode64 = is_co64_required(track); // use 32 bit size variant if possible
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     avio_wb32(pb, 0); /* size */
yading@11:     if (mode64)
yading@11:         ffio_wfourcc(pb, "co64");
yading@11:     else
yading@11:         ffio_wfourcc(pb, "stco");
yading@11:     avio_wb32(pb, 0); /* version & flags */
yading@11:     avio_wb32(pb, track->chunkCount); /* entry count */
yading@11:     for (i=0; i<track->entry; i++) {
yading@11:         if(!track->cluster[i].chunkNum)
yading@11:             continue;
yading@11:         if(mode64 == 1)
yading@11:             avio_wb64(pb, track->cluster[i].pos + track->data_offset);
yading@11:         else
yading@11:             avio_wb32(pb, track->cluster[i].pos + track->data_offset);
yading@11:     }
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: /* Sample size atom */
yading@11: static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int equalChunks = 1;
yading@11:     int i, j, entries = 0, tst = -1, oldtst = -1;
yading@11: 
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     avio_wb32(pb, 0); /* size */
yading@11:     ffio_wfourcc(pb, "stsz");
yading@11:     avio_wb32(pb, 0); /* version & flags */
yading@11: 
yading@11:     for (i=0; i<track->entry; i++) {
yading@11:         tst = track->cluster[i].size/track->cluster[i].entries;
yading@11:         if(oldtst != -1 && tst != oldtst) {
yading@11:             equalChunks = 0;
yading@11:         }
yading@11:         oldtst = tst;
yading@11:         entries += track->cluster[i].entries;
yading@11:     }
yading@11:     if (equalChunks && track->entry) {
yading@11:         int sSize = track->entry ? track->cluster[0].size/track->cluster[0].entries : 0;
yading@11:         sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
yading@11:         avio_wb32(pb, sSize); // sample size
yading@11:         avio_wb32(pb, entries); // sample count
yading@11:     }
yading@11:     else {
yading@11:         avio_wb32(pb, 0); // sample size
yading@11:         avio_wb32(pb, entries); // sample count
yading@11:         for (i=0; i<track->entry; i++) {
yading@11:             for (j=0; j<track->cluster[i].entries; j++) {
yading@11:                 avio_wb32(pb, track->cluster[i].size /
yading@11:                          track->cluster[i].entries);
yading@11:             }
yading@11:         }
yading@11:     }
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: /* Sample to chunk atom */
yading@11: static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int index = 0, oldval = -1, i;
yading@11:     int64_t entryPos, curpos;
yading@11: 
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     avio_wb32(pb, 0); /* size */
yading@11:     ffio_wfourcc(pb, "stsc");
yading@11:     avio_wb32(pb, 0); // version & flags
yading@11:     entryPos = avio_tell(pb);
yading@11:     avio_wb32(pb, track->chunkCount); // entry count
yading@11:     for (i=0; i<track->entry; i++) {
yading@11:         if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum)
yading@11:         {
yading@11:             avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
yading@11:             avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
yading@11:             avio_wb32(pb, 0x1); // sample description index
yading@11:             oldval = track->cluster[i].samples_in_chunk;
yading@11:             index++;
yading@11:         }
yading@11:     }
yading@11:     curpos = avio_tell(pb);
yading@11:     avio_seek(pb, entryPos, SEEK_SET);
yading@11:     avio_wb32(pb, index); // rewrite size
yading@11:     avio_seek(pb, curpos, SEEK_SET);
yading@11: 
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: /* Sync sample atom */
yading@11: static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
yading@11: {
yading@11:     int64_t curpos, entryPos;
yading@11:     int i, index = 0;
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     avio_wb32(pb, 0); // size
yading@11:     ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
yading@11:     avio_wb32(pb, 0); // version & flags
yading@11:     entryPos = avio_tell(pb);
yading@11:     avio_wb32(pb, track->entry); // entry count
yading@11:     for (i=0; i<track->entry; i++) {
yading@11:         if (track->cluster[i].flags & flag) {
yading@11:             avio_wb32(pb, i+1);
yading@11:             index++;
yading@11:         }
yading@11:     }
yading@11:     curpos = avio_tell(pb);
yading@11:     avio_seek(pb, entryPos, SEEK_SET);
yading@11:     avio_wb32(pb, index); // rewrite size
yading@11:     avio_seek(pb, curpos, SEEK_SET);
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     avio_wb32(pb, 0x11); /* size */
yading@11:     if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
yading@11:     else                         ffio_wfourcc(pb, "damr");
yading@11:     ffio_wfourcc(pb, "FFMP");
yading@11:     avio_w8(pb, 0); /* decoder version */
yading@11: 
yading@11:     avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
yading@11:     avio_w8(pb, 0x00); /* Mode change period (no restriction) */
yading@11:     avio_w8(pb, 0x01); /* Frames per sample */
yading@11:     return 0x11;
yading@11: }
yading@11: 
yading@11: static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     GetBitContext gbc;
yading@11:     PutBitContext pbc;
yading@11:     uint8_t buf[3];
yading@11:     int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
yading@11: 
yading@11:     if (track->vos_len < 7)
yading@11:         return -1;
yading@11: 
yading@11:     avio_wb32(pb, 11);
yading@11:     ffio_wfourcc(pb, "dac3");
yading@11: 
yading@11:     init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
yading@11:     fscod      = get_bits(&gbc, 2);
yading@11:     frmsizecod = get_bits(&gbc, 6);
yading@11:     bsid       = get_bits(&gbc, 5);
yading@11:     bsmod      = get_bits(&gbc, 3);
yading@11:     acmod      = get_bits(&gbc, 3);
yading@11:     if (acmod == 2) {
yading@11:         skip_bits(&gbc, 2); // dsurmod
yading@11:     } else {
yading@11:         if ((acmod & 1) && acmod != 1)
yading@11:             skip_bits(&gbc, 2); // cmixlev
yading@11:         if (acmod & 4)
yading@11:             skip_bits(&gbc, 2); // surmixlev
yading@11:     }
yading@11:     lfeon = get_bits1(&gbc);
yading@11: 
yading@11:     init_put_bits(&pbc, buf, sizeof(buf));
yading@11:     put_bits(&pbc, 2, fscod);
yading@11:     put_bits(&pbc, 5, bsid);
yading@11:     put_bits(&pbc, 3, bsmod);
yading@11:     put_bits(&pbc, 3, acmod);
yading@11:     put_bits(&pbc, 1, lfeon);
yading@11:     put_bits(&pbc, 5, frmsizecod>>1); // bit_rate_code
yading@11:     put_bits(&pbc, 5, 0); // reserved
yading@11: 
yading@11:     flush_put_bits(&pbc);
yading@11:     avio_write(pb, buf, sizeof(buf));
yading@11: 
yading@11:     return 11;
yading@11: }
yading@11: 
yading@11: /**
yading@11:  * This function writes extradata "as is".
yading@11:  * Extradata must be formatted like a valid atom (with size and tag).
yading@11:  */
yading@11: static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     avio_write(pb, track->enc->extradata, track->enc->extradata_size);
yading@11:     return track->enc->extradata_size;
yading@11: }
yading@11: 
yading@11: static int mov_write_enda_tag(AVIOContext *pb)
yading@11: {
yading@11:     avio_wb32(pb, 10);
yading@11:     ffio_wfourcc(pb, "enda");
yading@11:     avio_wb16(pb, 1); /* little endian */
yading@11:     return 10;
yading@11: }
yading@11: 
yading@11: static int mov_write_enda_tag_be(AVIOContext *pb)
yading@11: {
yading@11:   avio_wb32(pb, 10);
yading@11:   ffio_wfourcc(pb, "enda");
yading@11:   avio_wb16(pb, 0); /* big endian */
yading@11:   return 10;
yading@11: }
yading@11: 
yading@11: static void put_descr(AVIOContext *pb, int tag, unsigned int size)
yading@11: {
yading@11:     int i = 3;
yading@11:     avio_w8(pb, tag);
yading@11:     for(; i>0; i--)
yading@11:         avio_w8(pb, (size>>(7*i)) | 0x80);
yading@11:     avio_w8(pb, size & 0x7F);
yading@11: }
yading@11: 
yading@11: static unsigned compute_avg_bitrate(MOVTrack *track)
yading@11: {
yading@11:     uint64_t size = 0;
yading@11:     int i;
yading@11:     if (!track->track_duration)
yading@11:         return 0;
yading@11:     for (i = 0; i < track->entry; i++)
yading@11:         size += track->cluster[i].size;
yading@11:     return size * 8 * track->timescale / track->track_duration;
yading@11: }
yading@11: 
yading@11: static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
yading@11:     unsigned avg_bitrate;
yading@11: 
yading@11:     avio_wb32(pb, 0); // size
yading@11:     ffio_wfourcc(pb, "esds");
yading@11:     avio_wb32(pb, 0); // Version
yading@11: 
yading@11:     // ES descriptor
yading@11:     put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
yading@11:     avio_wb16(pb, track->track_id);
yading@11:     avio_w8(pb, 0x00); // flags (= no flags)
yading@11: 
yading@11:     // DecoderConfig descriptor
yading@11:     put_descr(pb, 0x04, 13 + decoder_specific_info_len);
yading@11: 
yading@11:     // Object type indication
yading@11:     if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
yading@11:          track->enc->codec_id == AV_CODEC_ID_MP3) &&
yading@11:         track->enc->sample_rate > 24000)
yading@11:         avio_w8(pb, 0x6B); // 11172-3
yading@11:     else
yading@11:         avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
yading@11: 
yading@11:     // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
yading@11:     // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
yading@11:     if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
yading@11:         avio_w8(pb, 0x15); // flags (= Audiostream)
yading@11:     else
yading@11:         avio_w8(pb, 0x11); // flags (= Visualstream)
yading@11: 
yading@11:     avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
yading@11: 
yading@11:     avg_bitrate = compute_avg_bitrate(track);
yading@11:     // maxbitrate (FIXME should be max rate in any 1 sec window)
yading@11:     avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
yading@11:     avio_wb32(pb, avg_bitrate);
yading@11: 
yading@11:     if (track->vos_len) {
yading@11:         // DecoderSpecific info descriptor
yading@11:         put_descr(pb, 0x05, track->vos_len);
yading@11:         avio_write(pb, track->vos_data, track->vos_len);
yading@11:     }
yading@11: 
yading@11:     // SL descriptor
yading@11:     put_descr(pb, 0x06, 1);
yading@11:     avio_w8(pb, 0x02);
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_pcm_le_gt16(enum AVCodecID codec_id)
yading@11: {
yading@11:     return codec_id == AV_CODEC_ID_PCM_S24LE ||
yading@11:            codec_id == AV_CODEC_ID_PCM_S32LE ||
yading@11:            codec_id == AV_CODEC_ID_PCM_F32LE ||
yading@11:            codec_id == AV_CODEC_ID_PCM_F64LE;
yading@11: }
yading@11: 
yading@11: static int mov_pcm_be_gt16(enum AVCodecID codec_id)
yading@11: {
yading@11:     return codec_id == AV_CODEC_ID_PCM_S24BE ||
yading@11:            codec_id == AV_CODEC_ID_PCM_S32BE ||
yading@11:            codec_id == AV_CODEC_ID_PCM_F32BE ||
yading@11:            codec_id == AV_CODEC_ID_PCM_F64BE;
yading@11: }
yading@11: 
yading@11: static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     avio_wb32(pb, 0);
yading@11:     avio_wl32(pb, track->tag); // store it byteswapped
yading@11:     track->enc->codec_tag = av_bswap16(track->tag >> 16);
yading@11:     ff_put_wav_header(pb, track->enc);
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     avio_wb32(pb, 0);
yading@11:     ffio_wfourcc(pb, "wfex");
yading@11:     ff_put_wav_header(pb, track->enc);
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     uint32_t layout_tag, bitmap;
yading@11:     int64_t pos = avio_tell(pb);
yading@11: 
yading@11:     layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
yading@11:                                                track->enc->channel_layout,
yading@11:                                                &bitmap);
yading@11:     if (!layout_tag) {
yading@11:         av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
yading@11:                "lack of channel information\n");
yading@11:         return 0;
yading@11:     }
yading@11: 
yading@11:     avio_wb32(pb, 0);           // Size
yading@11:     ffio_wfourcc(pb, "chan");   // Type
yading@11:     avio_w8(pb, 0);             // Version
yading@11:     avio_wb24(pb, 0);           // Flags
yading@11:     avio_wb32(pb, layout_tag);  // mChannelLayoutTag
yading@11:     avio_wb32(pb, bitmap);      // mChannelBitmap
yading@11:     avio_wb32(pb, 0);           // mNumberChannelDescriptions
yading@11: 
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11: 
yading@11:     avio_wb32(pb, 0);     /* size */
yading@11:     ffio_wfourcc(pb, "wave");
yading@11: 
yading@11:     if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
yading@11:     avio_wb32(pb, 12);    /* size */
yading@11:     ffio_wfourcc(pb, "frma");
yading@11:     avio_wl32(pb, track->tag);
yading@11:     }
yading@11: 
yading@11:     if (track->enc->codec_id == AV_CODEC_ID_AAC) {
yading@11:         /* useless atom needed by mplayer, ipod, not needed by quicktime */
yading@11:         avio_wb32(pb, 12); /* size */
yading@11:         ffio_wfourcc(pb, "mp4a");
yading@11:         avio_wb32(pb, 0);
yading@11:         mov_write_esds_tag(pb, track);
yading@11:     } else if (mov_pcm_le_gt16(track->enc->codec_id))  {
yading@11:       mov_write_enda_tag(pb);
yading@11:     } else if (mov_pcm_be_gt16(track->enc->codec_id))  {
yading@11:       mov_write_enda_tag_be(pb);
yading@11:     } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
yading@11:         mov_write_amr_tag(pb, track);
yading@11:     } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
yading@11:         mov_write_ac3_tag(pb, track);
yading@11:     } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
yading@11:                track->enc->codec_id == AV_CODEC_ID_QDM2) {
yading@11:         mov_write_extradata_tag(pb, track);
yading@11:     } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
yading@11:                track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
yading@11:         mov_write_ms_tag(pb, track);
yading@11:     }
yading@11: 
yading@11:     avio_wb32(pb, 8);     /* size */
yading@11:     avio_wb32(pb, 0);     /* null tag */
yading@11: 
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
yading@11: {
yading@11:     uint8_t *unescaped;
yading@11:     const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
yading@11:     int unescaped_size, seq_found = 0;
yading@11:     int level = 0, interlace = 0;
yading@11:     int packet_seq   = track->vc1_info.packet_seq;
yading@11:     int packet_entry = track->vc1_info.packet_entry;
yading@11:     int slices       = track->vc1_info.slices;
yading@11:     PutBitContext pbc;
yading@11: 
yading@11:     if (track->start_dts == AV_NOPTS_VALUE) {
yading@11:         /* No packets written yet, vc1_info isn't authoritative yet. */
yading@11:         /* Assume inline sequence and entry headers. This will be
yading@11:          * overwritten at the end if the file is seekable. */
yading@11:         packet_seq = packet_entry = 1;
yading@11:     }
yading@11: 
yading@11:     unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
yading@11:     if (!unescaped)
yading@11:         return AVERROR(ENOMEM);
yading@11:     start = find_next_marker(track->vos_data, end);
yading@11:     for (next = start; next < end; start = next) {
yading@11:         GetBitContext gb;
yading@11:         int size;
yading@11:         next = find_next_marker(start + 4, end);
yading@11:         size = next - start - 4;
yading@11:         if (size <= 0)
yading@11:             continue;
yading@11:         unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
yading@11:         init_get_bits(&gb, unescaped, 8 * unescaped_size);
yading@11:         if (AV_RB32(start) == VC1_CODE_SEQHDR) {
yading@11:             int profile = get_bits(&gb, 2);
yading@11:             if (profile != PROFILE_ADVANCED) {
yading@11:                 av_free(unescaped);
yading@11:                 return AVERROR(ENOSYS);
yading@11:             }
yading@11:             seq_found = 1;
yading@11:             level = get_bits(&gb, 3);
yading@11:             /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
yading@11:              * width, height */
yading@11:             skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
yading@11:             skip_bits(&gb, 1); /* broadcast */
yading@11:             interlace = get_bits1(&gb);
yading@11:             skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
yading@11:         }
yading@11:     }
yading@11:     if (!seq_found) {
yading@11:         av_free(unescaped);
yading@11:         return AVERROR(ENOSYS);
yading@11:     }
yading@11: 
yading@11:     init_put_bits(&pbc, buf, 7);
yading@11:     /* VC1DecSpecStruc */
yading@11:     put_bits(&pbc, 4, 12); /* profile - advanced */
yading@11:     put_bits(&pbc, 3, level);
yading@11:     put_bits(&pbc, 1, 0); /* reserved */
yading@11:     /* VC1AdvDecSpecStruc */
yading@11:     put_bits(&pbc, 3, level);
yading@11:     put_bits(&pbc, 1, 0); /* cbr */
yading@11:     put_bits(&pbc, 6, 0); /* reserved */
yading@11:     put_bits(&pbc, 1, !interlace); /* no interlace */
yading@11:     put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
yading@11:     put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
yading@11:     put_bits(&pbc, 1, !slices); /* no slice code */
yading@11:     put_bits(&pbc, 1, 0); /* no bframe */
yading@11:     put_bits(&pbc, 1, 0); /* reserved */
yading@11:     put_bits32(&pbc, track->enc->time_base.den); /* framerate */
yading@11:     flush_put_bits(&pbc);
yading@11: 
yading@11:     av_free(unescaped);
yading@11: 
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     uint8_t buf[7] = { 0 };
yading@11:     int ret;
yading@11: 
yading@11:     if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
yading@11:         return ret;
yading@11: 
yading@11:     avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
yading@11:     ffio_wfourcc(pb, "dvc1");
yading@11:     track->vc1_info.struct_offset = avio_tell(pb);
yading@11:     avio_write(pb, buf, sizeof(buf));
yading@11:     avio_write(pb, track->vos_data, track->vos_len);
yading@11: 
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     avio_wb32(pb, track->vos_len + 8);
yading@11:     ffio_wfourcc(pb, "glbl");
yading@11:     avio_write(pb, track->vos_data, track->vos_len);
yading@11:     return 8 + track->vos_len;
yading@11: }
yading@11: 
yading@11: /**
yading@11:  * Compute flags for 'lpcm' tag.
yading@11:  * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
yading@11:  */
yading@11: static int mov_get_lpcm_flags(enum AVCodecID codec_id)
yading@11: {
yading@11:     switch (codec_id) {
yading@11:     case AV_CODEC_ID_PCM_F32BE:
yading@11:     case AV_CODEC_ID_PCM_F64BE:
yading@11:         return 11;
yading@11:     case AV_CODEC_ID_PCM_F32LE:
yading@11:     case AV_CODEC_ID_PCM_F64LE:
yading@11:         return 9;
yading@11:     case AV_CODEC_ID_PCM_U8:
yading@11:         return 10;
yading@11:     case AV_CODEC_ID_PCM_S16BE:
yading@11:     case AV_CODEC_ID_PCM_S24BE:
yading@11:     case AV_CODEC_ID_PCM_S32BE:
yading@11:         return 14;
yading@11:     case AV_CODEC_ID_PCM_S8:
yading@11:     case AV_CODEC_ID_PCM_S16LE:
yading@11:     case AV_CODEC_ID_PCM_S24LE:
yading@11:     case AV_CODEC_ID_PCM_S32LE:
yading@11:         return 12;
yading@11:     default:
yading@11:         return 0;
yading@11:     }
yading@11: }
yading@11: 
yading@11: static int get_cluster_duration(MOVTrack *track, int cluster_idx)
yading@11: {
yading@11:     int64_t next_dts;
yading@11: 
yading@11:     if (cluster_idx >= track->entry)
yading@11:         return 0;
yading@11: 
yading@11:     if (cluster_idx + 1 == track->entry)
yading@11:         next_dts = track->track_duration + track->start_dts;
yading@11:     else
yading@11:         next_dts = track->cluster[cluster_idx + 1].dts;
yading@11: 
yading@11:     return next_dts - track->cluster[cluster_idx].dts;
yading@11: }
yading@11: 
yading@11: static int get_samples_per_packet(MOVTrack *track)
yading@11: {
yading@11:     int i, first_duration;
yading@11: 
yading@11: // return track->enc->frame_size;
yading@11: 
yading@11:     /* use 1 for raw PCM */
yading@11:     if (!track->audio_vbr)
yading@11:         return 1;
yading@11: 
yading@11:     /* check to see if duration is constant for all clusters */
yading@11:     if (!track->entry)
yading@11:         return 0;
yading@11:     first_duration = get_cluster_duration(track, 0);
yading@11:     for (i = 1; i < track->entry; i++) {
yading@11:         if (get_cluster_duration(track, i) != first_duration)
yading@11:             return 0;
yading@11:     }
yading@11:     return first_duration;
yading@11: }
yading@11: 
yading@11: static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     int version = 0;
yading@11:     uint32_t tag = track->tag;
yading@11: 
yading@11:     if (track->mode == MODE_MOV) {
yading@11:         if (track->timescale > UINT16_MAX) {
yading@11:             if (mov_get_lpcm_flags(track->enc->codec_id))
yading@11:                 tag = AV_RL32("lpcm");
yading@11:             version = 2;
yading@11:         } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
yading@11:                    mov_pcm_be_gt16(track->enc->codec_id) ||
yading@11:                    track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
yading@11:                    track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
yading@11:                    track->enc->codec_id == AV_CODEC_ID_QDM2) {
yading@11:             version = 1;
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     avio_wb32(pb, 0); /* size */
yading@11:     avio_wl32(pb, tag); // store it byteswapped
yading@11:     avio_wb32(pb, 0); /* Reserved */
yading@11:     avio_wb16(pb, 0); /* Reserved */
yading@11:     avio_wb16(pb, 1); /* Data-reference index, XXX  == 1 */
yading@11: 
yading@11:     /* SoundDescription */
yading@11:     avio_wb16(pb, version); /* Version */
yading@11:     avio_wb16(pb, 0); /* Revision level */
yading@11:     avio_wb32(pb, 0); /* Reserved */
yading@11: 
yading@11:     if (version == 2) {
yading@11:         avio_wb16(pb, 3);
yading@11:         avio_wb16(pb, 16);
yading@11:         avio_wb16(pb, 0xfffe);
yading@11:         avio_wb16(pb, 0);
yading@11:         avio_wb32(pb, 0x00010000);
yading@11:         avio_wb32(pb, 72);
yading@11:         avio_wb64(pb, av_double2int(track->enc->sample_rate));
yading@11:         avio_wb32(pb, track->enc->channels);
yading@11:         avio_wb32(pb, 0x7F000000);
yading@11:         avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
yading@11:         avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
yading@11:         avio_wb32(pb, track->sample_size);
yading@11:         avio_wb32(pb, get_samples_per_packet(track));
yading@11:     } else {
yading@11:         if (track->mode == MODE_MOV) {
yading@11:             avio_wb16(pb, track->enc->channels);
yading@11:             if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
yading@11:                 track->enc->codec_id == AV_CODEC_ID_PCM_S8)
yading@11:                 avio_wb16(pb, 8); /* bits per sample */
yading@11:             else
yading@11:                 avio_wb16(pb, 16);
yading@11:             avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
yading@11:         } else { /* reserved for mp4/3gp */
yading@11:             avio_wb16(pb, 2);
yading@11:             avio_wb16(pb, 16);
yading@11:             avio_wb16(pb, 0);
yading@11:         }
yading@11: 
yading@11:         avio_wb16(pb, 0); /* packet size (= 0) */
yading@11:         avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
yading@11:                       track->enc->sample_rate : 0);
yading@11:         avio_wb16(pb, 0); /* Reserved */
yading@11:     }
yading@11: 
yading@11:     if(version == 1) { /* SoundDescription V1 extended info */
yading@11:         if (mov_pcm_le_gt16(track->enc->codec_id) ||
yading@11:             mov_pcm_be_gt16(track->enc->codec_id))
yading@11:             avio_wb32(pb, 1); /*  must be 1 for  uncompressed formats */
yading@11:         else
yading@11:             avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
yading@11:         avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
yading@11:         avio_wb32(pb, track->sample_size); /* Bytes per frame */
yading@11:         avio_wb32(pb, 2); /* Bytes per sample */
yading@11:     }
yading@11: 
yading@11:     if(track->mode == MODE_MOV &&
yading@11:        (track->enc->codec_id == AV_CODEC_ID_AAC ||
yading@11:         track->enc->codec_id == AV_CODEC_ID_AC3 ||
yading@11:         track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
yading@11:         track->enc->codec_id == AV_CODEC_ID_ALAC ||
yading@11:         track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
yading@11:         track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
yading@11:         track->enc->codec_id == AV_CODEC_ID_QDM2 ||
yading@11:         (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
yading@11:         (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
yading@11:         mov_write_wave_tag(pb, track);
yading@11:     else if(track->tag == MKTAG('m','p','4','a'))
yading@11:         mov_write_esds_tag(pb, track);
yading@11:     else if(track->enc->codec_id == AV_CODEC_ID_AMR_NB)
yading@11:         mov_write_amr_tag(pb, track);
yading@11:     else if(track->enc->codec_id == AV_CODEC_ID_AC3)
yading@11:         mov_write_ac3_tag(pb, track);
yading@11:     else if(track->enc->codec_id == AV_CODEC_ID_ALAC)
yading@11:         mov_write_extradata_tag(pb, track);
yading@11:     else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
yading@11:         mov_write_wfex_tag(pb, track);
yading@11:     else if (track->vos_len > 0)
yading@11:         mov_write_glbl_tag(pb, track);
yading@11: 
yading@11:     if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
yading@11:         mov_write_chan_tag(pb, track);
yading@11: 
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_d263_tag(AVIOContext *pb)
yading@11: {
yading@11:     avio_wb32(pb, 0xf); /* size */
yading@11:     ffio_wfourcc(pb, "d263");
yading@11:     ffio_wfourcc(pb, "FFMP");
yading@11:     avio_w8(pb, 0); /* decoder version */
yading@11:     /* FIXME use AVCodecContext level/profile, when encoder will set values */
yading@11:     avio_w8(pb, 0xa); /* level */
yading@11:     avio_w8(pb, 0); /* profile */
yading@11:     return 0xf;
yading@11: }
yading@11: 
yading@11: static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11: 
yading@11:     avio_wb32(pb, 0);
yading@11:     ffio_wfourcc(pb, "avcC");
yading@11:     ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: /* also used by all avid codecs (dv, imx, meridien) and their variants */
yading@11: static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int i;
yading@11:     avio_wb32(pb, 24); /* size */
yading@11:     ffio_wfourcc(pb, "ACLR");
yading@11:     ffio_wfourcc(pb, "ACLR");
yading@11:     ffio_wfourcc(pb, "0001");
yading@11:     avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
yading@11:     avio_wb32(pb, 0); /* unknown */
yading@11: 
yading@11:     avio_wb32(pb, 24); /* size */
yading@11:     ffio_wfourcc(pb, "APRG");
yading@11:     ffio_wfourcc(pb, "APRG");
yading@11:     ffio_wfourcc(pb, "0001");
yading@11:     avio_wb32(pb, 1); /* unknown */
yading@11:     avio_wb32(pb, 0); /* unknown */
yading@11: 
yading@11:     avio_wb32(pb, 120); /* size */
yading@11:     ffio_wfourcc(pb, "ARES");
yading@11:     ffio_wfourcc(pb, "ARES");
yading@11:     ffio_wfourcc(pb, "0001");
yading@11:     avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
yading@11:     avio_wb32(pb, track->enc->width);
yading@11:     /* values below are based on samples created with quicktime and avid codecs */
yading@11:     if (track->vos_data[5] & 2) { // interlaced
yading@11:         avio_wb32(pb, track->enc->height/2);
yading@11:         avio_wb32(pb, 2); /* unknown */
yading@11:         avio_wb32(pb, 0); /* unknown */
yading@11:         avio_wb32(pb, 4); /* unknown */
yading@11:     } else {
yading@11:         avio_wb32(pb, track->enc->height);
yading@11:         avio_wb32(pb, 1); /* unknown */
yading@11:         avio_wb32(pb, 0); /* unknown */
yading@11:         if (track->enc->height == 1080)
yading@11:             avio_wb32(pb, 5); /* unknown */
yading@11:         else
yading@11:             avio_wb32(pb, 6); /* unknown */
yading@11:     }
yading@11:     /* padding */
yading@11:     for (i = 0; i < 10; i++)
yading@11:         avio_wb64(pb, 0);
yading@11: 
yading@11:     /* extra padding for stsd needed */
yading@11:     avio_wb32(pb, 0);
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
yading@11: {
yading@11:     int tag = track->enc->codec_tag;
yading@11: 
yading@11:     if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
yading@11:         return 0;
yading@11: 
yading@11:     if      (track->enc->codec_id == AV_CODEC_ID_H264)      tag = MKTAG('a','v','c','1');
yading@11:     else if (track->enc->codec_id == AV_CODEC_ID_AC3)       tag = MKTAG('a','c','-','3');
yading@11:     else if (track->enc->codec_id == AV_CODEC_ID_DIRAC)     tag = MKTAG('d','r','a','c');
yading@11:     else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT)  tag = MKTAG('t','x','3','g');
yading@11:     else if (track->enc->codec_id == AV_CODEC_ID_VC1)       tag = MKTAG('v','c','-','1');
yading@11:     else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
yading@11:     else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
yading@11: 
yading@11:     return tag;
yading@11: }
yading@11: 
yading@11: static const AVCodecTag codec_ipod_tags[] = {
yading@11:     { AV_CODEC_ID_H264,   MKTAG('a','v','c','1') },
yading@11:     { AV_CODEC_ID_MPEG4,  MKTAG('m','p','4','v') },
yading@11:     { AV_CODEC_ID_AAC,    MKTAG('m','p','4','a') },
yading@11:     { AV_CODEC_ID_ALAC,   MKTAG('a','l','a','c') },
yading@11:     { AV_CODEC_ID_AC3,    MKTAG('a','c','-','3') },
yading@11:     { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
yading@11:     { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
yading@11:     { AV_CODEC_ID_NONE, 0 },
yading@11: };
yading@11: 
yading@11: static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
yading@11: {
yading@11:     int tag = track->enc->codec_tag;
yading@11: 
yading@11:     // keep original tag for subs, ipod supports both formats
yading@11:     if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
yading@11:         (tag == MKTAG('t','x','3','g') ||
yading@11:          tag == MKTAG('t','e','x','t'))))
yading@11:         tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
yading@11: 
yading@11:     if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
yading@11:         av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
yading@11:                "Quicktime/Ipod might not play the file\n");
yading@11: 
yading@11:     return tag;
yading@11: }
yading@11: 
yading@11: static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
yading@11: {
yading@11:     int tag;
yading@11: 
yading@11:     if (track->enc->width == 720) { /* SD */
yading@11:         if (track->enc->height == 480) { /* NTSC */
yading@11:             if  (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
yading@11:             else                                         tag = MKTAG('d','v','c',' ');
yading@11:        }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
yading@11:         else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
yading@11:         else                                             tag = MKTAG('d','v','p','p');
yading@11:     } else if (track->enc->height == 720) { /* HD 720 line */
yading@11:         if  (track->enc->time_base.den == 50)            tag = MKTAG('d','v','h','q');
yading@11:         else                                             tag = MKTAG('d','v','h','p');
yading@11:     } else if (track->enc->height == 1080) { /* HD 1080 line */
yading@11:         if  (track->enc->time_base.den == 25)            tag = MKTAG('d','v','h','5');
yading@11:         else                                             tag = MKTAG('d','v','h','6');
yading@11:     } else {
yading@11:         av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
yading@11:         return 0;
yading@11:     }
yading@11: 
yading@11:     return tag;
yading@11: }
yading@11: 
yading@11: static const struct {
yading@11:     enum AVPixelFormat pix_fmt;
yading@11:     uint32_t tag;
yading@11:     unsigned bps;
yading@11: } mov_pix_fmt_tags[] = {
yading@11:     { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'),  0 },
yading@11:     { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'),  0 },
yading@11:     { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'),  0 },
yading@11:     { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
yading@11:     { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
yading@11:     { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
yading@11:     { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
yading@11:     { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
yading@11:     { AV_PIX_FMT_RGB24,   MKTAG('r','a','w',' '), 24 },
yading@11:     { AV_PIX_FMT_BGR24,   MKTAG('2','4','B','G'), 24 },
yading@11:     { AV_PIX_FMT_ARGB,    MKTAG('r','a','w',' '), 32 },
yading@11:     { AV_PIX_FMT_BGRA,    MKTAG('B','G','R','A'), 32 },
yading@11:     { AV_PIX_FMT_RGBA,    MKTAG('R','G','B','A'), 32 },
yading@11:     { AV_PIX_FMT_ABGR,    MKTAG('A','B','G','R'), 32 },
yading@11:     { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
yading@11: };
yading@11: 
yading@11: static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
yading@11: {
yading@11:     int tag = track->enc->codec_tag;
yading@11:     int i;
yading@11: 
yading@11:     for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
yading@11:         if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
yading@11:             tag = mov_pix_fmt_tags[i].tag;
yading@11:             track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
yading@11:             if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
yading@11:                 break;
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     return tag;
yading@11: }
yading@11: 
yading@11: static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
yading@11: {
yading@11:     int tag = track->enc->codec_tag;
yading@11: 
yading@11:     if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
yading@11:                  (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
yading@11:                   track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
yading@11:                   track->enc->codec_id == AV_CODEC_ID_H263 ||
yading@11:                   av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
yading@11:         if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
yading@11:             tag = mov_get_dv_codec_tag(s, track);
yading@11:         else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
yading@11:             tag = mov_get_rawvideo_codec_tag(s, track);
yading@11:         else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
yading@11:             tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
yading@11:             if (!tag) { // if no mac fcc found, try with Microsoft tags
yading@11:                 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
yading@11:                 if (tag)
yading@11:                     av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
yading@11:                            "the file may be unplayable!\n");
yading@11:             }
yading@11:         } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
yading@11:             tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
yading@11:             if (!tag) { // if no mac fcc found, try with Microsoft tags
yading@11:                 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
yading@11:                 if (ms_tag) {
yading@11:                     tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
yading@11:                     av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
yading@11:                            "the file may be unplayable!\n");
yading@11:                 }
yading@11:             }
yading@11:         } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
yading@11:             tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
yading@11:     }
yading@11: 
yading@11:     return tag;
yading@11: }
yading@11: 
yading@11: static const AVCodecTag codec_3gp_tags[] = {
yading@11:     { AV_CODEC_ID_H263,   MKTAG('s','2','6','3') },
yading@11:     { AV_CODEC_ID_H264,   MKTAG('a','v','c','1') },
yading@11:     { AV_CODEC_ID_MPEG4,  MKTAG('m','p','4','v') },
yading@11:     { AV_CODEC_ID_AAC,    MKTAG('m','p','4','a') },
yading@11:     { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
yading@11:     { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
yading@11:     { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
yading@11:     { AV_CODEC_ID_NONE, 0 },
yading@11: };
yading@11: 
yading@11: static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
yading@11:     { AV_CODEC_ID_MP3,    MKTAG('.','m','p','3') },
yading@11:     { AV_CODEC_ID_AAC,    MKTAG('m','p','4','a') },
yading@11:     { AV_CODEC_ID_H264,   MKTAG('a','v','c','1') },
yading@11:     { AV_CODEC_ID_VP6F,   MKTAG('V','P','6','F') },
yading@11:     { AV_CODEC_ID_NONE, 0 },
yading@11: };
yading@11: 
yading@11: static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
yading@11: {
yading@11:     int tag;
yading@11: 
yading@11:     if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
yading@11:         tag = mp4_get_codec_tag(s, track);
yading@11:     else if (track->mode == MODE_ISM) {
yading@11:         tag = mp4_get_codec_tag(s, track);
yading@11:         if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
yading@11:             tag = MKTAG('w', 'm', 'a', ' ');
yading@11:     } else if (track->mode == MODE_IPOD)
yading@11:         tag = ipod_get_codec_tag(s, track);
yading@11:     else if (track->mode & MODE_3GP)
yading@11:         tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
yading@11:     else if (track->mode & MODE_F4V)
yading@11:         tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
yading@11:     else
yading@11:         tag = mov_get_codec_tag(s, track);
yading@11: 
yading@11:     return tag;
yading@11: }
yading@11: 
yading@11: /** Write uuid atom.
yading@11:  * Needed to make file play in iPods running newest firmware
yading@11:  * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
yading@11:  */
yading@11: static int mov_write_uuid_tag_ipod(AVIOContext *pb)
yading@11: {
yading@11:     avio_wb32(pb, 28);
yading@11:     ffio_wfourcc(pb, "uuid");
yading@11:     avio_wb32(pb, 0x6b6840f2);
yading@11:     avio_wb32(pb, 0x5f244fc5);
yading@11:     avio_wb32(pb, 0xba39a51b);
yading@11:     avio_wb32(pb, 0xcf0323f3);
yading@11:     avio_wb32(pb, 0x0);
yading@11:     return 28;
yading@11: }
yading@11: 
yading@11: static const uint16_t fiel_data[] = {
yading@11:     0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
yading@11: };
yading@11: 
yading@11: static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     unsigned mov_field_order = 0;
yading@11:     if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
yading@11:         mov_field_order = fiel_data[track->enc->field_order];
yading@11:     else
yading@11:         return 0;
yading@11:     avio_wb32(pb, 10);
yading@11:     ffio_wfourcc(pb, "fiel");
yading@11:     avio_wb16(pb, mov_field_order);
yading@11:     return 10;
yading@11: }
yading@11: 
yading@11: static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     avio_wb32(pb, 0);    /* size */
yading@11:     avio_wl32(pb, track->tag); // store it byteswapped
yading@11:     avio_wb32(pb, 0);    /* Reserved */
yading@11:     avio_wb16(pb, 0);    /* Reserved */
yading@11:     avio_wb16(pb, 1);    /* Data-reference index */
yading@11: 
yading@11:     if (track->enc->extradata_size)
yading@11:         avio_write(pb, track->enc->extradata, track->enc->extradata_size);
yading@11: 
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     AVRational sar;
yading@11:     av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
yading@11:               track->enc->sample_aspect_ratio.den, INT_MAX);
yading@11: 
yading@11:     avio_wb32(pb, 16);
yading@11:     ffio_wfourcc(pb, "pasp");
yading@11:     avio_wb32(pb, sar.num);
yading@11:     avio_wb32(pb, sar.den);
yading@11:     return 16;
yading@11: }
yading@11: 
yading@11: static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     char compressor_name[32] = { 0 };
yading@11: 
yading@11:     avio_wb32(pb, 0); /* size */
yading@11:     avio_wl32(pb, track->tag); // store it byteswapped
yading@11:     avio_wb32(pb, 0); /* Reserved */
yading@11:     avio_wb16(pb, 0); /* Reserved */
yading@11:     avio_wb16(pb, 1); /* Data-reference index */
yading@11: 
yading@11:     avio_wb16(pb, 0); /* Codec stream version */
yading@11:     avio_wb16(pb, 0); /* Codec stream revision (=0) */
yading@11:     if (track->mode == MODE_MOV) {
yading@11:         ffio_wfourcc(pb, "FFMP"); /* Vendor */
yading@11:         if(track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
yading@11:             avio_wb32(pb, 0); /* Temporal Quality */
yading@11:             avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
yading@11:         } else {
yading@11:             avio_wb32(pb, 0x200); /* Temporal Quality = normal */
yading@11:             avio_wb32(pb, 0x200); /* Spatial Quality = normal */
yading@11:         }
yading@11:     } else {
yading@11:         avio_wb32(pb, 0); /* Reserved */
yading@11:         avio_wb32(pb, 0); /* Reserved */
yading@11:         avio_wb32(pb, 0); /* Reserved */
yading@11:     }
yading@11:     avio_wb16(pb, track->enc->width); /* Video width */
yading@11:     avio_wb16(pb, track->height); /* Video height */
yading@11:     avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
yading@11:     avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
yading@11:     avio_wb32(pb, 0); /* Data size (= 0) */
yading@11:     avio_wb16(pb, 1); /* Frame count (= 1) */
yading@11: 
yading@11:     /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
yading@11:     if (track->mode == MODE_MOV && track->enc->codec && track->enc->codec->name)
yading@11:         av_strlcpy(compressor_name,track->enc->codec->name,32);
yading@11:     avio_w8(pb, strlen(compressor_name));
yading@11:     avio_write(pb, compressor_name, 31);
yading@11: 
yading@11:     if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
yading@11:         avio_wb16(pb, track->enc->bits_per_coded_sample);
yading@11:     else
yading@11:         avio_wb16(pb, 0x18); /* Reserved */
yading@11:     avio_wb16(pb, 0xffff); /* Reserved */
yading@11:     if(track->tag == MKTAG('m','p','4','v'))
yading@11:         mov_write_esds_tag(pb, track);
yading@11:     else if(track->enc->codec_id == AV_CODEC_ID_H263)
yading@11:         mov_write_d263_tag(pb);
yading@11:     else if(track->enc->codec_id == AV_CODEC_ID_AVUI ||
yading@11:             track->enc->codec_id == AV_CODEC_ID_SVQ3) {
yading@11:         mov_write_extradata_tag(pb, track);
yading@11:         avio_wb32(pb, 0);
yading@11:     } else if(track->enc->codec_id == AV_CODEC_ID_DNXHD)
yading@11:         mov_write_avid_tag(pb, track);
yading@11:     else if(track->enc->codec_id == AV_CODEC_ID_H264) {
yading@11:         mov_write_avcc_tag(pb, track);
yading@11:         if(track->mode == MODE_IPOD)
yading@11:             mov_write_uuid_tag_ipod(pb);
yading@11:     } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
yading@11:         mov_write_dvc1_tag(pb, track);
yading@11:     else if (track->vos_len > 0)
yading@11:         mov_write_glbl_tag(pb, track);
yading@11: 
yading@11:     if (track->enc->codec_id != AV_CODEC_ID_H264 &&
yading@11:         track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
yading@11:         track->enc->codec_id != AV_CODEC_ID_DNXHD)
yading@11:         if (track->enc->field_order != AV_FIELD_UNKNOWN)
yading@11:             mov_write_fiel_tag(pb, track);
yading@11: 
yading@11:     if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
yading@11:         track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
yading@11:         mov_write_pasp_tag(pb, track);
yading@11:     }
yading@11: 
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
yading@11:     int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
yading@11: 
yading@11:     if (nb_frames > 255) {
yading@11:         av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
yading@11:         return AVERROR(EINVAL);
yading@11:     }
yading@11: 
yading@11:     avio_wb32(pb, 0); /* size */
yading@11:     ffio_wfourcc(pb, "tmcd");               /* Data format */
yading@11:     avio_wb32(pb, 0);                       /* Reserved */
yading@11:     avio_wb32(pb, 1);                       /* Data reference index */
yading@11:     avio_wb32(pb, 0);                       /* Flags */
yading@11:     avio_wb32(pb, track->timecode_flags);   /* Flags (timecode) */
yading@11:     avio_wb32(pb, track->timescale);        /* Timescale */
yading@11:     avio_wb32(pb, frame_duration);          /* Frame duration */
yading@11:     avio_w8(pb, nb_frames);                 /* Number of frames */
yading@11:     avio_wb24(pb, 0);                       /* Reserved */
yading@11:     /* TODO: source reference string */
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     avio_wb32(pb, 0); /* size */
yading@11:     ffio_wfourcc(pb, "rtp ");
yading@11:     avio_wb32(pb, 0); /* Reserved */
yading@11:     avio_wb16(pb, 0); /* Reserved */
yading@11:     avio_wb16(pb, 1); /* Data-reference index */
yading@11: 
yading@11:     avio_wb16(pb, 1); /* Hint track version */
yading@11:     avio_wb16(pb, 1); /* Highest compatible version */
yading@11:     avio_wb32(pb, track->max_packet_size); /* Max packet size */
yading@11: 
yading@11:     avio_wb32(pb, 12); /* size */
yading@11:     ffio_wfourcc(pb, "tims");
yading@11:     avio_wb32(pb, track->timescale);
yading@11: 
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     avio_wb32(pb, 0); /* size */
yading@11:     ffio_wfourcc(pb, "stsd");
yading@11:     avio_wb32(pb, 0); /* version & flags */
yading@11:     avio_wb32(pb, 1); /* entry count */
yading@11:     if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
yading@11:         mov_write_video_tag(pb, track);
yading@11:     else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
yading@11:         mov_write_audio_tag(pb, track);
yading@11:     else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
yading@11:         mov_write_subtitle_tag(pb, track);
yading@11:     else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
yading@11:         mov_write_rtp_tag(pb, track);
yading@11:     else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
yading@11:         mov_write_tmcd_tag(pb, track);
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     MOVStts *ctts_entries;
yading@11:     uint32_t entries = 0;
yading@11:     uint32_t atom_size;
yading@11:     int i;
yading@11: 
yading@11:     ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
yading@11:     ctts_entries[0].count = 1;
yading@11:     ctts_entries[0].duration = track->cluster[0].cts;
yading@11:     for (i=1; i<track->entry; i++) {
yading@11:         if (track->cluster[i].cts == ctts_entries[entries].duration) {
yading@11:             ctts_entries[entries].count++; /* compress */
yading@11:         } else {
yading@11:             entries++;
yading@11:             ctts_entries[entries].duration = track->cluster[i].cts;
yading@11:             ctts_entries[entries].count = 1;
yading@11:         }
yading@11:     }
yading@11:     entries++; /* last one */
yading@11:     atom_size = 16 + (entries * 8);
yading@11:     avio_wb32(pb, atom_size); /* size */
yading@11:     ffio_wfourcc(pb, "ctts");
yading@11:     avio_wb32(pb, 0); /* version & flags */
yading@11:     avio_wb32(pb, entries); /* entry count */
yading@11:     for (i=0; i<entries; i++) {
yading@11:         avio_wb32(pb, ctts_entries[i].count);
yading@11:         avio_wb32(pb, ctts_entries[i].duration);
yading@11:     }
yading@11:     av_free(ctts_entries);
yading@11:     return atom_size;
yading@11: }
yading@11: 
yading@11: /* Time to sample atom */
yading@11: static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     MOVStts *stts_entries;
yading@11:     uint32_t entries = -1;
yading@11:     uint32_t atom_size;
yading@11:     int i;
yading@11: 
yading@11:     if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
yading@11:         stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
yading@11:         stts_entries[0].count = track->sample_count;
yading@11:         stts_entries[0].duration = 1;
yading@11:         entries = 1;
yading@11:     } else {
yading@11:         stts_entries = track->entry ?
yading@11:                        av_malloc(track->entry * sizeof(*stts_entries)) : /* worst case */
yading@11:                        NULL;
yading@11:         for (i=0; i<track->entry; i++) {
yading@11:             int duration = get_cluster_duration(track, i);
yading@11:             if (i && duration == stts_entries[entries].duration) {
yading@11:                 stts_entries[entries].count++; /* compress */
yading@11:             } else {
yading@11:                 entries++;
yading@11:                 stts_entries[entries].duration = duration;
yading@11:                 stts_entries[entries].count = 1;
yading@11:             }
yading@11:         }
yading@11:         entries++; /* last one */
yading@11:     }
yading@11:     atom_size = 16 + (entries * 8);
yading@11:     avio_wb32(pb, atom_size); /* size */
yading@11:     ffio_wfourcc(pb, "stts");
yading@11:     avio_wb32(pb, 0); /* version & flags */
yading@11:     avio_wb32(pb, entries); /* entry count */
yading@11:     for (i=0; i<entries; i++) {
yading@11:         avio_wb32(pb, stts_entries[i].count);
yading@11:         avio_wb32(pb, stts_entries[i].duration);
yading@11:     }
yading@11:     av_free(stts_entries);
yading@11:     return atom_size;
yading@11: }
yading@11: 
yading@11: static int mov_write_dref_tag(AVIOContext *pb)
yading@11: {
yading@11:     avio_wb32(pb, 28); /* size */
yading@11:     ffio_wfourcc(pb, "dref");
yading@11:     avio_wb32(pb, 0); /* version & flags */
yading@11:     avio_wb32(pb, 1); /* entry count */
yading@11: 
yading@11:     avio_wb32(pb, 0xc); /* size */
yading@11:     //FIXME add the alis and rsrc atom
yading@11:     ffio_wfourcc(pb, "url ");
yading@11:     avio_wb32(pb, 1); /* version & flags */
yading@11: 
yading@11:     return 28;
yading@11: }
yading@11: 
yading@11: static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     avio_wb32(pb, 0); /* size */
yading@11:     ffio_wfourcc(pb, "stbl");
yading@11:     mov_write_stsd_tag(pb, track);
yading@11:     mov_write_stts_tag(pb, track);
yading@11:     if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
yading@11:          track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
yading@11:         track->has_keyframes && track->has_keyframes < track->entry)
yading@11:         mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
yading@11:     if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
yading@11:         mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
yading@11:     if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
yading@11:         track->flags & MOV_TRACK_CTTS)
yading@11:         mov_write_ctts_tag(pb, track);
yading@11:     mov_write_stsc_tag(pb, track);
yading@11:     mov_write_stsz_tag(pb, track);
yading@11:     mov_write_stco_tag(pb, track);
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_dinf_tag(AVIOContext *pb)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     avio_wb32(pb, 0); /* size */
yading@11:     ffio_wfourcc(pb, "dinf");
yading@11:     mov_write_dref_tag(pb);
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_nmhd_tag(AVIOContext *pb)
yading@11: {
yading@11:     avio_wb32(pb, 12);
yading@11:     ffio_wfourcc(pb, "nmhd");
yading@11:     avio_wb32(pb, 0);
yading@11:     return 12;
yading@11: }
yading@11: 
yading@11: static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     const char *font = "Lucida Grande";
yading@11:     avio_wb32(pb, 0);                   /* size */
yading@11:     ffio_wfourcc(pb, "tcmi");           /* timecode media information atom */
yading@11:     avio_wb32(pb, 0);                   /* version & flags */
yading@11:     avio_wb16(pb, 0);                   /* text font */
yading@11:     avio_wb16(pb, 0);                   /* text face */
yading@11:     avio_wb16(pb, 12);                  /* text size */
yading@11:     avio_wb16(pb, 0);                   /* (unknown, not in the QT specs...) */
yading@11:     avio_wb16(pb, 0x0000);              /* text color (red) */
yading@11:     avio_wb16(pb, 0x0000);              /* text color (green) */
yading@11:     avio_wb16(pb, 0x0000);              /* text color (blue) */
yading@11:     avio_wb16(pb, 0xffff);              /* background color (red) */
yading@11:     avio_wb16(pb, 0xffff);              /* background color (green) */
yading@11:     avio_wb16(pb, 0xffff);              /* background color (blue) */
yading@11:     avio_w8(pb, strlen(font));          /* font len (part of the pascal string) */
yading@11:     avio_write(pb, font, strlen(font)); /* font name */
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     avio_wb32(pb, 0);      /* size */
yading@11:     ffio_wfourcc(pb, "gmhd");
yading@11:     avio_wb32(pb, 0x18);   /* gmin size */
yading@11:     ffio_wfourcc(pb, "gmin");/* generic media info */
yading@11:     avio_wb32(pb, 0);      /* version & flags */
yading@11:     avio_wb16(pb, 0x40);   /* graphics mode = */
yading@11:     avio_wb16(pb, 0x8000); /* opColor (r?) */
yading@11:     avio_wb16(pb, 0x8000); /* opColor (g?) */
yading@11:     avio_wb16(pb, 0x8000); /* opColor (b?) */
yading@11:     avio_wb16(pb, 0);      /* balance */
yading@11:     avio_wb16(pb, 0);      /* reserved */
yading@11: 
yading@11:     /*
yading@11:      * This special text atom is required for
yading@11:      * Apple Quicktime chapters. The contents
yading@11:      * don't appear to be documented, so the
yading@11:      * bytes are copied verbatim.
yading@11:      */
yading@11:     if (track->tag != MKTAG('c','6','0','8')) {
yading@11:     avio_wb32(pb, 0x2C);   /* size */
yading@11:     ffio_wfourcc(pb, "text");
yading@11:     avio_wb16(pb, 0x01);
yading@11:     avio_wb32(pb, 0x00);
yading@11:     avio_wb32(pb, 0x00);
yading@11:     avio_wb32(pb, 0x00);
yading@11:     avio_wb32(pb, 0x01);
yading@11:     avio_wb32(pb, 0x00);
yading@11:     avio_wb32(pb, 0x00);
yading@11:     avio_wb32(pb, 0x00);
yading@11:     avio_wb32(pb, 0x00004000);
yading@11:     avio_wb16(pb, 0x0000);
yading@11:     }
yading@11: 
yading@11:     if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
yading@11:         int64_t tmcd_pos = avio_tell(pb);
yading@11:         avio_wb32(pb, 0); /* size */
yading@11:         ffio_wfourcc(pb, "tmcd");
yading@11:         mov_write_tcmi_tag(pb, track);
yading@11:         update_size(pb, tmcd_pos);
yading@11:     }
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_smhd_tag(AVIOContext *pb)
yading@11: {
yading@11:     avio_wb32(pb, 16); /* size */
yading@11:     ffio_wfourcc(pb, "smhd");
yading@11:     avio_wb32(pb, 0); /* version & flags */
yading@11:     avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
yading@11:     avio_wb16(pb, 0); /* reserved */
yading@11:     return 16;
yading@11: }
yading@11: 
yading@11: static int mov_write_vmhd_tag(AVIOContext *pb)
yading@11: {
yading@11:     avio_wb32(pb, 0x14); /* size (always 0x14) */
yading@11:     ffio_wfourcc(pb, "vmhd");
yading@11:     avio_wb32(pb, 0x01); /* version & flags */
yading@11:     avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
yading@11:     return 0x14;
yading@11: }
yading@11: 
yading@11: static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     const char *hdlr, *descr = NULL, *hdlr_type = NULL;
yading@11:     int64_t pos = avio_tell(pb);
yading@11: 
yading@11:     if (!track) { /* no media --> data handler */
yading@11:         hdlr = "dhlr";
yading@11:         hdlr_type = "url ";
yading@11:         descr = "DataHandler";
yading@11:     } else {
yading@11:         hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
yading@11:         if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
yading@11:             hdlr_type = "vide";
yading@11:             descr = "VideoHandler";
yading@11:         } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
yading@11:             hdlr_type = "soun";
yading@11:             descr = "SoundHandler";
yading@11:         } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
yading@11:             if (track->tag == MKTAG('c','6','0','8')) {
yading@11:                 hdlr_type = "clcp";
yading@11:                 descr = "ClosedCaptionHandler";
yading@11:             } else {
yading@11:             if (track->tag == MKTAG('t','x','3','g')) hdlr_type = "sbtl";
yading@11:             else                                      hdlr_type = "text";
yading@11:             descr = "SubtitleHandler";
yading@11:             }
yading@11:         } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
yading@11:             hdlr_type = "tmcd";
yading@11:             descr = "TimeCodeHandler";
yading@11:         } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
yading@11:             hdlr_type = "hint";
yading@11:             descr = "HintHandler";
yading@11:         } else {
yading@11:             hdlr = "dhlr";
yading@11:             hdlr_type = "url ";
yading@11:             descr = "DataHandler";
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     avio_wb32(pb, 0); /* size */
yading@11:     ffio_wfourcc(pb, "hdlr");
yading@11:     avio_wb32(pb, 0); /* Version & flags */
yading@11:     avio_write(pb, hdlr, 4); /* handler */
yading@11:     ffio_wfourcc(pb, hdlr_type); /* handler type */
yading@11:     avio_wb32(pb ,0); /* reserved */
yading@11:     avio_wb32(pb ,0); /* reserved */
yading@11:     avio_wb32(pb ,0); /* reserved */
yading@11:     if (!track || track->mode == MODE_MOV)
yading@11:         avio_w8(pb, strlen(descr)); /* pascal string */
yading@11:     avio_write(pb, descr, strlen(descr)); /* handler description */
yading@11:     if (track && track->mode != MODE_MOV)
yading@11:         avio_w8(pb, 0); /* c string */
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_hmhd_tag(AVIOContext *pb)
yading@11: {
yading@11:     /* This atom must be present, but leaving the values at zero
yading@11:      * seems harmless. */
yading@11:     avio_wb32(pb, 28); /* size */
yading@11:     ffio_wfourcc(pb, "hmhd");
yading@11:     avio_wb32(pb, 0); /* version, flags */
yading@11:     avio_wb16(pb, 0); /* maxPDUsize */
yading@11:     avio_wb16(pb, 0); /* avgPDUsize */
yading@11:     avio_wb32(pb, 0); /* maxbitrate */
yading@11:     avio_wb32(pb, 0); /* avgbitrate */
yading@11:     avio_wb32(pb, 0); /* reserved */
yading@11:     return 28;
yading@11: }
yading@11: 
yading@11: static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     avio_wb32(pb, 0); /* size */
yading@11:     ffio_wfourcc(pb, "minf");
yading@11:     if(track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
yading@11:         mov_write_vmhd_tag(pb);
yading@11:     else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
yading@11:         mov_write_smhd_tag(pb);
yading@11:     else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
yading@11:         if (track->tag == MKTAG('t','e','x','t') || track->tag == MKTAG('c','6','0','8')) {
yading@11:             mov_write_gmhd_tag(pb, track);
yading@11:         } else {
yading@11:             mov_write_nmhd_tag(pb);
yading@11:         }
yading@11:     } else if (track->tag == MKTAG('t','m','c','d')) {
yading@11:         mov_write_gmhd_tag(pb, track);
yading@11:     } else if (track->tag == MKTAG('r','t','p',' ')) {
yading@11:         mov_write_hmhd_tag(pb);
yading@11:     }
yading@11:     if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
yading@11:         mov_write_hdlr_tag(pb, NULL);
yading@11:     mov_write_dinf_tag(pb);
yading@11:     mov_write_stbl_tag(pb, track);
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int version = track->track_duration < INT32_MAX ? 0 : 1;
yading@11: 
yading@11:     if (track->mode == MODE_ISM)
yading@11:         version = 1;
yading@11: 
yading@11:     (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
yading@11:     ffio_wfourcc(pb, "mdhd");
yading@11:     avio_w8(pb, version);
yading@11:     avio_wb24(pb, 0); /* flags */
yading@11:     if (version == 1) {
yading@11:         avio_wb64(pb, track->time);
yading@11:         avio_wb64(pb, track->time);
yading@11:     } else {
yading@11:         avio_wb32(pb, track->time); /* creation time */
yading@11:         avio_wb32(pb, track->time); /* modification time */
yading@11:     }
yading@11:     avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
yading@11:     if (!track->entry)
yading@11:         (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
yading@11:     else
yading@11:         (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
yading@11:     avio_wb16(pb, track->language); /* language */
yading@11:     avio_wb16(pb, 0); /* reserved (quality) */
yading@11: 
yading@11:     if(version!=0 && track->mode == MODE_MOV){
yading@11:         av_log(NULL, AV_LOG_ERROR,
yading@11:             "FATAL error, file duration too long for timebase, this file will not be\n"
yading@11:             "playable with quicktime. Choose a different timebase or a different\n"
yading@11:             "container format\n");
yading@11:     }
yading@11: 
yading@11:     return 32;
yading@11: }
yading@11: 
yading@11: static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     avio_wb32(pb, 0); /* size */
yading@11:     ffio_wfourcc(pb, "mdia");
yading@11:     mov_write_mdhd_tag(pb, track);
yading@11:     mov_write_hdlr_tag(pb, track);
yading@11:     mov_write_minf_tag(pb, track);
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: /* transformation matrix
yading@11:      |a  b  u|
yading@11:      |c  d  v|
yading@11:      |tx ty w| */
yading@11: static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
yading@11:                          int16_t d, int16_t tx, int16_t ty)
yading@11: {
yading@11:     avio_wb32(pb, a << 16);  /* 16.16 format */
yading@11:     avio_wb32(pb, b << 16);  /* 16.16 format */
yading@11:     avio_wb32(pb, 0);        /* u in 2.30 format */
yading@11:     avio_wb32(pb, c << 16);  /* 16.16 format */
yading@11:     avio_wb32(pb, d << 16);  /* 16.16 format */
yading@11:     avio_wb32(pb, 0);        /* v in 2.30 format */
yading@11:     avio_wb32(pb, tx << 16); /* 16.16 format */
yading@11:     avio_wb32(pb, ty << 16); /* 16.16 format */
yading@11:     avio_wb32(pb, 1 << 30);  /* w in 2.30 format */
yading@11: }
yading@11: 
yading@11: static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
yading@11: {
yading@11:     int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
yading@11:                                       track->timescale, AV_ROUND_UP);
yading@11:     int version = duration < INT32_MAX ? 0 : 1;
yading@11:     int rotation = 0;
yading@11: 
yading@11:     if (track->mode == MODE_ISM)
yading@11:         version = 1;
yading@11: 
yading@11:     (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
yading@11:     ffio_wfourcc(pb, "tkhd");
yading@11:     avio_w8(pb, version);
yading@11:     avio_wb24(pb, track->secondary ? 0x2 : 0xf); /* flags (first track enabled) */
yading@11:     if (version == 1) {
yading@11:         avio_wb64(pb, track->time);
yading@11:         avio_wb64(pb, track->time);
yading@11:     } else {
yading@11:         avio_wb32(pb, track->time); /* creation time */
yading@11:         avio_wb32(pb, track->time); /* modification time */
yading@11:     }
yading@11:     avio_wb32(pb, track->track_id); /* track-id */
yading@11:     avio_wb32(pb, 0); /* reserved */
yading@11:     if (!track->entry)
yading@11:         (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
yading@11:     else
yading@11:         (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
yading@11: 
yading@11:     avio_wb32(pb, 0); /* reserved */
yading@11:     avio_wb32(pb, 0); /* reserved */
yading@11:     avio_wb16(pb, 0); /* layer */
yading@11:     avio_wb16(pb, st ? st->codec->codec_type : 0); /* alternate group) */
yading@11:     /* Volume, only for audio */
yading@11:     if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
yading@11:         avio_wb16(pb, 0x0100);
yading@11:     else
yading@11:         avio_wb16(pb, 0);
yading@11:     avio_wb16(pb, 0); /* reserved */
yading@11: 
yading@11:     /* Matrix structure */
yading@11:     if (st && st->metadata) {
yading@11:         AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
yading@11:         rotation = (rot && rot->value) ? atoi(rot->value) : 0;
yading@11:     }
yading@11:     if (rotation == 90) {
yading@11:         write_matrix(pb,  0,  1, -1,  0, track->enc->height, 0);
yading@11:     } else if (rotation == 180) {
yading@11:         write_matrix(pb, -1,  0,  0, -1, track->enc->width, track->enc->height);
yading@11:     } else if (rotation == 270) {
yading@11:         write_matrix(pb,  0, -1,  1,  0, 0, track->enc->width);
yading@11:     } else {
yading@11:         write_matrix(pb,  1,  0,  0,  1, 0, 0);
yading@11:     }
yading@11:     /* Track width and height, for visual only */
yading@11:     if(st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
yading@11:               track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
yading@11:         if(track->mode == MODE_MOV) {
yading@11:             avio_wb32(pb, track->enc->width << 16);
yading@11:             avio_wb32(pb, track->height << 16);
yading@11:         } else {
yading@11:             double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
yading@11:             if(!sample_aspect_ratio || track->height != track->enc->height)
yading@11:                 sample_aspect_ratio = 1;
yading@11:             avio_wb32(pb, sample_aspect_ratio * track->enc->width*0x10000);
yading@11:             avio_wb32(pb, track->height*0x10000);
yading@11:         }
yading@11:     }
yading@11:     else {
yading@11:         avio_wb32(pb, 0);
yading@11:         avio_wb32(pb, 0);
yading@11:     }
yading@11:     return 0x5c;
yading@11: }
yading@11: 
yading@11: static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
yading@11:                                track->enc->sample_aspect_ratio.den);
yading@11: 
yading@11:     int64_t pos = avio_tell(pb);
yading@11: 
yading@11:     avio_wb32(pb, 0); /* size */
yading@11:     ffio_wfourcc(pb, "tapt");
yading@11: 
yading@11:     avio_wb32(pb, 20);
yading@11:     ffio_wfourcc(pb, "clef");
yading@11:     avio_wb32(pb, 0);
yading@11:     avio_wb32(pb, width << 16);
yading@11:     avio_wb32(pb, track->enc->height << 16);
yading@11: 
yading@11:     avio_wb32(pb, 20);
yading@11:     ffio_wfourcc(pb, "prof");
yading@11:     avio_wb32(pb, 0);
yading@11:     avio_wb32(pb, width << 16);
yading@11:     avio_wb32(pb, track->enc->height << 16);
yading@11: 
yading@11:     avio_wb32(pb, 20);
yading@11:     ffio_wfourcc(pb, "enof");
yading@11:     avio_wb32(pb, 0);
yading@11:     avio_wb32(pb, track->enc->width << 16);
yading@11:     avio_wb32(pb, track->enc->height << 16);
yading@11: 
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: // This box seems important for the psp playback ... without it the movie seems to hang
yading@11: static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
yading@11:                                       track->timescale, AV_ROUND_UP);
yading@11:     int version = duration < INT32_MAX ? 0 : 1;
yading@11:     int entry_size, entry_count, size;
yading@11:     int64_t delay, start_ct = track->cluster[0].cts;
yading@11:     delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
yading@11:                            track->timescale, AV_ROUND_DOWN);
yading@11:     version |= delay < INT32_MAX ? 0 : 1;
yading@11: 
yading@11:     entry_size = (version == 1) ? 20 : 12;
yading@11:     entry_count = 1 + (delay > 0);
yading@11:     size = 24 + entry_count * entry_size;
yading@11: 
yading@11:     /* write the atom data */
yading@11:     avio_wb32(pb, size);
yading@11:     ffio_wfourcc(pb, "edts");
yading@11:     avio_wb32(pb, size - 8);
yading@11:     ffio_wfourcc(pb, "elst");
yading@11:     avio_w8(pb, version);
yading@11:     avio_wb24(pb, 0); /* flags */
yading@11: 
yading@11:     avio_wb32(pb, entry_count);
yading@11:     if (delay > 0) { /* add an empty edit to delay presentation */
yading@11:         if (version == 1) {
yading@11:             avio_wb64(pb, delay);
yading@11:             avio_wb64(pb, -1);
yading@11:         } else {
yading@11:             avio_wb32(pb, delay);
yading@11:             avio_wb32(pb, -1);
yading@11:         }
yading@11:         avio_wb32(pb, 0x00010000);
yading@11:     } else {
yading@11:         av_assert0(av_rescale_rnd(track->cluster[0].dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
yading@11:         start_ct  = -FFMIN(track->cluster[0].dts, 0); //FFMIN needed due to rounding
yading@11:         duration += delay;
yading@11:     }
yading@11: 
yading@11:     /* duration */
yading@11:     if (version == 1) {
yading@11:         avio_wb64(pb, duration);
yading@11:         avio_wb64(pb, start_ct);
yading@11:     } else {
yading@11:         avio_wb32(pb, duration);
yading@11:         avio_wb32(pb, start_ct);
yading@11:     }
yading@11:     avio_wb32(pb, 0x00010000);
yading@11:     return size;
yading@11: }
yading@11: 
yading@11: static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     avio_wb32(pb, 20);   // size
yading@11:     ffio_wfourcc(pb, "tref");
yading@11:     avio_wb32(pb, 12);   // size (subatom)
yading@11:     avio_wl32(pb, track->tref_tag);
yading@11:     avio_wb32(pb, track->tref_id);
yading@11:     return 20;
yading@11: }
yading@11: 
yading@11: // goes at the end of each track!  ... Critical for PSP playback ("Incompatible data" without it)
yading@11: static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
yading@11: {
yading@11:     avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
yading@11:     ffio_wfourcc(pb, "uuid");
yading@11:     ffio_wfourcc(pb, "USMT");
yading@11:     avio_wb32(pb, 0x21d24fce);
yading@11:     avio_wb32(pb, 0xbb88695c);
yading@11:     avio_wb32(pb, 0xfac9c740);
yading@11:     avio_wb32(pb, 0x1c);     // another size here!
yading@11:     ffio_wfourcc(pb, "MTDT");
yading@11:     avio_wb32(pb, 0x00010012);
yading@11:     avio_wb32(pb, 0x0a);
yading@11:     avio_wb32(pb, 0x55c40000);
yading@11:     avio_wb32(pb, 0x1);
yading@11:     avio_wb32(pb, 0x0);
yading@11:     return 0x34;
yading@11: }
yading@11: 
yading@11: static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11: 
yading@11:     AVFormatContext *ctx = track->rtp_ctx;
yading@11:     char buf[1000] = "";
yading@11:     int len;
yading@11: 
yading@11:     ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
yading@11:                        NULL, NULL, 0, 0, ctx);
yading@11:     av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
yading@11:     len = strlen(buf);
yading@11: 
yading@11:     avio_wb32(pb, len + 24);
yading@11:     ffio_wfourcc(pb, "udta");
yading@11:     avio_wb32(pb, len + 16);
yading@11:     ffio_wfourcc(pb, "hnti");
yading@11:     avio_wb32(pb, len + 8);
yading@11:     ffio_wfourcc(pb, "sdp ");
yading@11:     avio_write(pb, buf, len);
yading@11:     return len + 24;
yading@11: }
yading@11: 
yading@11: static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
yading@11:                               MOVTrack *track, AVStream *st)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     avio_wb32(pb, 0); /* size */
yading@11:     ffio_wfourcc(pb, "trak");
yading@11:     mov_write_tkhd_tag(pb, track, st);
yading@11:     if (supports_edts(mov))
yading@11:         mov_write_edts_tag(pb, track);  // PSP Movies and several other cases require edts box
yading@11:     if (track->tref_tag)
yading@11:         mov_write_tref_tag(pb, track);
yading@11:     mov_write_mdia_tag(pb, track);
yading@11:     if (track->mode == MODE_PSP)
yading@11:         mov_write_uuid_tag_psp(pb,track);  // PSP Movies require this uuid box
yading@11:     if (track->tag == MKTAG('r','t','p',' '))
yading@11:         mov_write_udta_sdp(pb, track);
yading@11:     if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && track->mode == MODE_MOV) {
yading@11:         double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
yading@11:         if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio)
yading@11:             mov_write_tapt_tag(pb, track);
yading@11:     };
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
yading@11: {
yading@11:     int i, has_audio = 0, has_video = 0;
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     int audio_profile = mov->iods_audio_profile;
yading@11:     int video_profile = mov->iods_video_profile;
yading@11:     for (i = 0; i < mov->nb_streams; i++) {
yading@11:         if(mov->tracks[i].entry > 0) {
yading@11:             has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
yading@11:             has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
yading@11:         }
yading@11:     }
yading@11:     if (audio_profile < 0)
yading@11:         audio_profile = 0xFF - has_audio;
yading@11:     if (video_profile < 0)
yading@11:         video_profile = 0xFF - has_video;
yading@11:     avio_wb32(pb, 0x0); /* size */
yading@11:     ffio_wfourcc(pb, "iods");
yading@11:     avio_wb32(pb, 0);    /* version & flags */
yading@11:     put_descr(pb, 0x10, 7);
yading@11:     avio_wb16(pb, 0x004f);
yading@11:     avio_w8(pb, 0xff);
yading@11:     avio_w8(pb, 0xff);
yading@11:     avio_w8(pb, audio_profile);
yading@11:     avio_w8(pb, video_profile);
yading@11:     avio_w8(pb, 0xff);
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     avio_wb32(pb, 0x20); /* size */
yading@11:     ffio_wfourcc(pb, "trex");
yading@11:     avio_wb32(pb, 0);   /* version & flags */
yading@11:     avio_wb32(pb, track->track_id); /* track ID */
yading@11:     avio_wb32(pb, 1);   /* default sample description index */
yading@11:     avio_wb32(pb, 0);   /* default sample duration */
yading@11:     avio_wb32(pb, 0);   /* default sample size */
yading@11:     avio_wb32(pb, 0);   /* default sample flags */
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     int i;
yading@11:     avio_wb32(pb, 0x0); /* size */
yading@11:     ffio_wfourcc(pb, "mvex");
yading@11:     for (i = 0; i < mov->nb_streams; i++)
yading@11:         mov_write_trex_tag(pb, &mov->tracks[i]);
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
yading@11: {
yading@11:     int max_track_id = 1, i;
yading@11:     int64_t max_track_len_temp, max_track_len = 0;
yading@11:     int version;
yading@11: 
yading@11:     for (i=0; i<mov->nb_streams; i++) {
yading@11:         if(mov->tracks[i].entry > 0) {
yading@11:             max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
yading@11:                                                 MOV_TIMESCALE,
yading@11:                                                 mov->tracks[i].timescale,
yading@11:                                                 AV_ROUND_UP);
yading@11:             if (max_track_len < max_track_len_temp)
yading@11:                 max_track_len = max_track_len_temp;
yading@11:             if (max_track_id < mov->tracks[i].track_id)
yading@11:                 max_track_id = mov->tracks[i].track_id;
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     version = max_track_len < UINT32_MAX ? 0 : 1;
yading@11:     (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
yading@11:     ffio_wfourcc(pb, "mvhd");
yading@11:     avio_w8(pb, version);
yading@11:     avio_wb24(pb, 0); /* flags */
yading@11:     if (version == 1) {
yading@11:         avio_wb64(pb, mov->time);
yading@11:         avio_wb64(pb, mov->time);
yading@11:     } else {
yading@11:         avio_wb32(pb, mov->time); /* creation time */
yading@11:         avio_wb32(pb, mov->time); /* modification time */
yading@11:     }
yading@11:     avio_wb32(pb, MOV_TIMESCALE);
yading@11:     (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
yading@11: 
yading@11:     avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
yading@11:     avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
yading@11:     avio_wb16(pb, 0); /* reserved */
yading@11:     avio_wb32(pb, 0); /* reserved */
yading@11:     avio_wb32(pb, 0); /* reserved */
yading@11: 
yading@11:     /* Matrix structure */
yading@11:     write_matrix(pb, 1, 0, 0, 1, 0, 0);
yading@11: 
yading@11:     avio_wb32(pb, 0); /* reserved (preview time) */
yading@11:     avio_wb32(pb, 0); /* reserved (preview duration) */
yading@11:     avio_wb32(pb, 0); /* reserved (poster time) */
yading@11:     avio_wb32(pb, 0); /* reserved (selection time) */
yading@11:     avio_wb32(pb, 0); /* reserved (selection duration) */
yading@11:     avio_wb32(pb, 0); /* reserved (current time) */
yading@11:     avio_wb32(pb, max_track_id + 1); /* Next track id */
yading@11:     return 0x6c;
yading@11: }
yading@11: 
yading@11: static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
yading@11:                                      AVFormatContext *s)
yading@11: {
yading@11:     avio_wb32(pb, 33); /* size */
yading@11:     ffio_wfourcc(pb, "hdlr");
yading@11:     avio_wb32(pb, 0);
yading@11:     avio_wb32(pb, 0);
yading@11:     ffio_wfourcc(pb, "mdir");
yading@11:     ffio_wfourcc(pb, "appl");
yading@11:     avio_wb32(pb, 0);
yading@11:     avio_wb32(pb, 0);
yading@11:     avio_w8(pb, 0);
yading@11:     return 33;
yading@11: }
yading@11: 
yading@11: /* helper function to write a data tag with the specified string as data */
yading@11: static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
yading@11: {
yading@11:     if(long_style){
yading@11:         int size = 16 + strlen(data);
yading@11:         avio_wb32(pb, size); /* size */
yading@11:         ffio_wfourcc(pb, "data");
yading@11:         avio_wb32(pb, 1);
yading@11:         avio_wb32(pb, 0);
yading@11:         avio_write(pb, data, strlen(data));
yading@11:         return size;
yading@11:     }else{
yading@11:         if (!lang)
yading@11:             lang = ff_mov_iso639_to_lang("und", 1);
yading@11:         avio_wb16(pb, strlen(data)); /* string length */
yading@11:         avio_wb16(pb, lang);
yading@11:         avio_write(pb, data, strlen(data));
yading@11:         return strlen(data) + 4;
yading@11:     }
yading@11: }
yading@11: 
yading@11: static int mov_write_string_tag(AVIOContext *pb, const char *name, const char *value, int lang, int long_style){
yading@11:     int size = 0;
yading@11:     if (value && value[0]) {
yading@11:         int64_t pos = avio_tell(pb);
yading@11:         avio_wb32(pb, 0); /* size */
yading@11:         ffio_wfourcc(pb, name);
yading@11:         mov_write_string_data_tag(pb, value, lang, long_style);
yading@11:         size = update_size(pb, pos);
yading@11:     }
yading@11:     return size;
yading@11: }
yading@11: 
yading@11: static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
yading@11:                                      const char *name, const char *tag,
yading@11:                                      int long_style)
yading@11: {
yading@11:     int l, lang = 0, len, len2;
yading@11:     AVDictionaryEntry *t, *t2 = NULL;
yading@11:     char tag2[16];
yading@11: 
yading@11:     if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
yading@11:         return 0;
yading@11: 
yading@11:     len = strlen(t->key);
yading@11:     snprintf(tag2, sizeof(tag2), "%s-", tag);
yading@11:     while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
yading@11:         len2 = strlen(t2->key);
yading@11:         if (len2 == len+4 && !strcmp(t->value, t2->value)
yading@11:             && (l=ff_mov_iso639_to_lang(&t2->key[len2-3], 1)) >= 0) {
yading@11:             lang = l;
yading@11:             break;
yading@11:         }
yading@11:     }
yading@11:     return mov_write_string_tag(pb, name, t->value, lang, long_style);
yading@11: }
yading@11: 
yading@11: /* iTunes bpm number */
yading@11: static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
yading@11: {
yading@11:     AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
yading@11:     int size = 0, tmpo = t ? atoi(t->value) : 0;
yading@11:     if (tmpo) {
yading@11:         size = 26;
yading@11:         avio_wb32(pb, size);
yading@11:         ffio_wfourcc(pb, "tmpo");
yading@11:         avio_wb32(pb, size-8); /* size */
yading@11:         ffio_wfourcc(pb, "data");
yading@11:         avio_wb32(pb, 0x15);  //type specifier
yading@11:         avio_wb32(pb, 0);
yading@11:         avio_wb16(pb, tmpo);        // data
yading@11:     }
yading@11:     return size;
yading@11: }
yading@11: 
yading@11: /* iTunes track number */
yading@11: static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
yading@11:                               AVFormatContext *s)
yading@11: {
yading@11:     AVDictionaryEntry *t = av_dict_get(s->metadata, "track", NULL, 0);
yading@11:     int size = 0, track = t ? atoi(t->value) : 0;
yading@11:     if (track) {
yading@11:         avio_wb32(pb, 32); /* size */
yading@11:         ffio_wfourcc(pb, "trkn");
yading@11:             avio_wb32(pb, 24); /* size */
yading@11:             ffio_wfourcc(pb, "data");
yading@11:             avio_wb32(pb, 0);        // 8 bytes empty
yading@11:             avio_wb32(pb, 0);
yading@11:             avio_wb16(pb, 0);        // empty
yading@11:             avio_wb16(pb, track);    // track number
yading@11:             avio_wb16(pb, 0);        // total track number
yading@11:             avio_wb16(pb, 0);        // empty
yading@11:         size = 32;
yading@11:     }
yading@11:     return size;
yading@11: }
yading@11: 
yading@11: static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
yading@11:                                    const char *name, const char *tag,
yading@11:                                    int len)
yading@11: {
yading@11:     AVDictionaryEntry *t = NULL;
yading@11:     uint8_t num;
yading@11: 
yading@11:     if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
yading@11:         return 0;
yading@11:     num = atoi(t->value);
yading@11: 
yading@11:     avio_wb32(pb, len+8);
yading@11:     ffio_wfourcc(pb, name);
yading@11:     if (len==4) avio_wb32(pb, num);
yading@11:     else        avio_w8 (pb, num);
yading@11:     return len+8;
yading@11: }
yading@11: 
yading@11: /* iTunes meta data list */
yading@11: static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
yading@11:                               AVFormatContext *s)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     avio_wb32(pb, 0); /* size */
yading@11:     ffio_wfourcc(pb, "ilst");
yading@11:     mov_write_string_metadata(s, pb, "\251nam", "title"    , 1);
yading@11:     mov_write_string_metadata(s, pb, "\251ART", "artist"   , 1);
yading@11:     mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
yading@11:     mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
yading@11:     mov_write_string_metadata(s, pb, "\251alb", "album"    , 1);
yading@11:     mov_write_string_metadata(s, pb, "\251day", "date"     , 1);
yading@11:     mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
yading@11:     mov_write_string_metadata(s, pb, "\251cmt", "comment"  , 1);
yading@11:     mov_write_string_metadata(s, pb, "\251gen", "genre"    , 1);
yading@11:     mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
yading@11:     mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
yading@11:     mov_write_string_metadata(s, pb, "\251lyr", "lyrics"   , 1);
yading@11:     mov_write_string_metadata(s, pb, "desc",    "description",1);
yading@11:     mov_write_string_metadata(s, pb, "ldes",    "synopsis" , 1);
yading@11:     mov_write_string_metadata(s, pb, "tvsh",    "show"     , 1);
yading@11:     mov_write_string_metadata(s, pb, "tven",    "episode_id",1);
yading@11:     mov_write_string_metadata(s, pb, "tvnn",    "network"  , 1);
yading@11:     mov_write_int8_metadata  (s, pb, "tves",    "episode_sort",4);
yading@11:     mov_write_int8_metadata  (s, pb, "tvsn",    "season_number",4);
yading@11:     mov_write_int8_metadata  (s, pb, "stik",    "media_type",1);
yading@11:     mov_write_int8_metadata  (s, pb, "hdvd",    "hd_video",  1);
yading@11:     mov_write_int8_metadata  (s, pb, "pgap",    "gapless_playback",1);
yading@11:     mov_write_trkn_tag(pb, mov, s);
yading@11:     mov_write_tmpo_tag(pb, s);
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: /* iTunes meta data tag */
yading@11: static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
yading@11:                               AVFormatContext *s)
yading@11: {
yading@11:     int size = 0;
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     avio_wb32(pb, 0); /* size */
yading@11:     ffio_wfourcc(pb, "meta");
yading@11:     avio_wb32(pb, 0);
yading@11:     mov_write_itunes_hdlr_tag(pb, mov, s);
yading@11:     mov_write_ilst_tag(pb, mov, s);
yading@11:     size = update_size(pb, pos);
yading@11:     return size;
yading@11: }
yading@11: 
yading@11: static int utf8len(const uint8_t *b)
yading@11: {
yading@11:     int len=0;
yading@11:     int val;
yading@11:     while(*b){
yading@11:         GET_UTF8(val, *b++, return -1;)
yading@11:         len++;
yading@11:     }
yading@11:     return len;
yading@11: }
yading@11: 
yading@11: static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
yading@11: {
yading@11:     int val;
yading@11:     while(*b){
yading@11:         GET_UTF8(val, *b++, return -1;)
yading@11:         avio_wb16(pb, val);
yading@11:     }
yading@11:     avio_wb16(pb, 0x00);
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static uint16_t language_code(const char *str)
yading@11: {
yading@11:     return (((str[0]-0x60) & 0x1F) << 10) + (((str[1]-0x60) & 0x1F) << 5) + ((str[2]-0x60) & 0x1F);
yading@11: }
yading@11: 
yading@11: static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
yading@11:                                   const char *tag, const char *str)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
yading@11:     if (!t || !utf8len(t->value))
yading@11:         return 0;
yading@11:     avio_wb32(pb, 0);   /* size */
yading@11:     ffio_wfourcc(pb, tag); /* type */
yading@11:     avio_wb32(pb, 0);   /* version + flags */
yading@11:     if (!strcmp(tag, "yrrc"))
yading@11:         avio_wb16(pb, atoi(t->value));
yading@11:     else {
yading@11:         avio_wb16(pb, language_code("eng")); /* language */
yading@11:         avio_write(pb, t->value, strlen(t->value)+1); /* UTF8 string value */
yading@11:         if (!strcmp(tag, "albm") &&
yading@11:             (t = av_dict_get(s->metadata, "track", NULL, 0)))
yading@11:             avio_w8(pb, atoi(t->value));
yading@11:     }
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     int i, nb_chapters = FFMIN(s->nb_chapters, 255);
yading@11: 
yading@11:     avio_wb32(pb, 0);            // size
yading@11:     ffio_wfourcc(pb, "chpl");
yading@11:     avio_wb32(pb, 0x01000000);   // version + flags
yading@11:     avio_wb32(pb, 0);            // unknown
yading@11:     avio_w8(pb, nb_chapters);
yading@11: 
yading@11:     for (i = 0; i < nb_chapters; i++) {
yading@11:         AVChapter *c = s->chapters[i];
yading@11:         AVDictionaryEntry *t;
yading@11:         avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
yading@11: 
yading@11:         if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
yading@11:             int len = FFMIN(strlen(t->value), 255);
yading@11:             avio_w8(pb, len);
yading@11:             avio_write(pb, t->value, len);
yading@11:         } else
yading@11:             avio_w8(pb, 0);
yading@11:     }
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
yading@11:                               AVFormatContext *s)
yading@11: {
yading@11:     AVIOContext *pb_buf;
yading@11:     int i, ret, size;
yading@11:     uint8_t *buf;
yading@11: 
yading@11:     for (i = 0; i < s->nb_streams; i++)
yading@11:         if (mov->tracks[i].enc->flags & CODEC_FLAG_BITEXACT) {
yading@11:             return 0;
yading@11:         }
yading@11: 
yading@11:     ret = avio_open_dyn_buf(&pb_buf);
yading@11:     if(ret < 0)
yading@11:         return ret;
yading@11: 
yading@11:     if (mov->mode & MODE_3GP) {
yading@11:         mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
yading@11:         mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
yading@11:         mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
yading@11:         mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
yading@11:         mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
yading@11:         mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
yading@11:         mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
yading@11:         mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
yading@11:     } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
yading@11:         mov_write_string_metadata(s, pb_buf, "\251ART", "artist"     , 0);
yading@11:         mov_write_string_metadata(s, pb_buf, "\251nam", "title"      , 0);
yading@11:         mov_write_string_metadata(s, pb_buf, "\251aut", "author"     , 0);
yading@11:         mov_write_string_metadata(s, pb_buf, "\251alb", "album"      , 0);
yading@11:         mov_write_string_metadata(s, pb_buf, "\251day", "date"       , 0);
yading@11:         mov_write_string_metadata(s, pb_buf, "\251swr", "encoder"    , 0);
yading@11:         // currently ignored by mov.c
yading@11:         mov_write_string_metadata(s, pb_buf, "\251des", "comment"    , 0);
yading@11:         // add support for libquicktime, this atom is also actually read by mov.c
yading@11:         mov_write_string_metadata(s, pb_buf, "\251cmt", "comment"    , 0);
yading@11:         mov_write_string_metadata(s, pb_buf, "\251gen", "genre"      , 0);
yading@11:         mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright"  , 0);
yading@11:     } else {
yading@11:         /* iTunes meta data */
yading@11:         mov_write_meta_tag(pb_buf, mov, s);
yading@11:     }
yading@11: 
yading@11:     if (s->nb_chapters)
yading@11:         mov_write_chpl_tag(pb_buf, s);
yading@11: 
yading@11:     if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
yading@11:         avio_wb32(pb, size+8);
yading@11:         ffio_wfourcc(pb, "udta");
yading@11:         avio_write(pb, buf, size);
yading@11:     }
yading@11:     av_free(buf);
yading@11: 
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static void mov_write_psp_udta_tag(AVIOContext *pb,
yading@11:                                   const char *str, const char *lang, int type)
yading@11: {
yading@11:     int len = utf8len(str)+1;
yading@11:     if(len<=0)
yading@11:         return;
yading@11:     avio_wb16(pb, len*2+10);            /* size */
yading@11:     avio_wb32(pb, type);                /* type */
yading@11:     avio_wb16(pb, language_code(lang)); /* language */
yading@11:     avio_wb16(pb, 0x01);                /* ? */
yading@11:     ascii_to_wc(pb, str);
yading@11: }
yading@11: 
yading@11: static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
yading@11: {
yading@11:     AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
yading@11:     int64_t pos, pos2;
yading@11: 
yading@11:     if (title) {
yading@11:         pos = avio_tell(pb);
yading@11:         avio_wb32(pb, 0); /* size placeholder*/
yading@11:         ffio_wfourcc(pb, "uuid");
yading@11:         ffio_wfourcc(pb, "USMT");
yading@11:         avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
yading@11:         avio_wb32(pb, 0xbb88695c);
yading@11:         avio_wb32(pb, 0xfac9c740);
yading@11: 
yading@11:         pos2 = avio_tell(pb);
yading@11:         avio_wb32(pb, 0); /* size placeholder*/
yading@11:         ffio_wfourcc(pb, "MTDT");
yading@11:         avio_wb16(pb, 4);
yading@11: 
yading@11:         // ?
yading@11:         avio_wb16(pb, 0x0C);                 /* size */
yading@11:         avio_wb32(pb, 0x0B);                 /* type */
yading@11:         avio_wb16(pb, language_code("und")); /* language */
yading@11:         avio_wb16(pb, 0x0);                  /* ? */
yading@11:         avio_wb16(pb, 0x021C);               /* data */
yading@11: 
yading@11:         mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT,      "eng", 0x04);
yading@11:         mov_write_psp_udta_tag(pb, title->value,          "eng", 0x01);
yading@11:         mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
yading@11: 
yading@11:         update_size(pb, pos2);
yading@11:         return update_size(pb, pos);
yading@11:     }
yading@11: 
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static void build_chunks(MOVTrack *trk)
yading@11: {
yading@11:     int i;
yading@11:     MOVIentry *chunk= &trk->cluster[0];
yading@11:     uint64_t chunkSize = chunk->size;
yading@11:     chunk->chunkNum= 1;
yading@11:     if (trk->chunkCount)
yading@11:         return;
yading@11:     trk->chunkCount= 1;
yading@11:     for(i=1; i<trk->entry; i++){
yading@11:         if(chunk->pos + chunkSize == trk->cluster[i].pos &&
yading@11:             chunkSize + trk->cluster[i].size < (1<<20)){
yading@11:             chunkSize             += trk->cluster[i].size;
yading@11:             chunk->samples_in_chunk += trk->cluster[i].entries;
yading@11:         }else{
yading@11:             trk->cluster[i].chunkNum = chunk->chunkNum+1;
yading@11:             chunk=&trk->cluster[i];
yading@11:             chunkSize = chunk->size;
yading@11:             trk->chunkCount++;
yading@11:         }
yading@11:     }
yading@11: }
yading@11: 
yading@11: static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
yading@11:                               AVFormatContext *s)
yading@11: {
yading@11:     int i;
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     int not_first[AVMEDIA_TYPE_NB]={0};
yading@11:     avio_wb32(pb, 0); /* size placeholder*/
yading@11:     ffio_wfourcc(pb, "moov");
yading@11: 
yading@11:     for (i=0; i<mov->nb_streams; i++) {
yading@11:         if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
yading@11:             continue;
yading@11: 
yading@11:         mov->tracks[i].time = mov->time;
yading@11:         mov->tracks[i].track_id = i+1;
yading@11: 
yading@11:         if (mov->tracks[i].entry)
yading@11:             build_chunks(&mov->tracks[i]);
yading@11:     }
yading@11: 
yading@11:     if (mov->chapter_track)
yading@11:         for (i=0; i<s->nb_streams; i++) {
yading@11:             mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
yading@11:             mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
yading@11:         }
yading@11:     for (i = 0; i < mov->nb_streams; i++) {
yading@11:         if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
yading@11:             mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
yading@11:             mov->tracks[i].tref_id =
yading@11:                 mov->tracks[mov->tracks[i].src_track].track_id;
yading@11:         }
yading@11:     }
yading@11:     for (i = 0; i < mov->nb_streams; i++) {
yading@11:         if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
yading@11:             int src_trk = mov->tracks[i].src_track;
yading@11:             mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
yading@11:             mov->tracks[src_trk].tref_id  = mov->tracks[i].track_id;
yading@11:             mov->tracks[i].track_duration = mov->tracks[src_trk].track_duration;
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     mov_write_mvhd_tag(pb, mov);
yading@11:     if (mov->mode != MODE_MOV && !mov->iods_skip)
yading@11:         mov_write_iods_tag(pb, mov);
yading@11:     for (i=0; i<mov->nb_streams; i++) {
yading@11:         if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
yading@11:             if(i < s->nb_streams){
yading@11:                 int codec_type= s->streams[i]->codec->codec_type;
yading@11:                 if(codec_type==AVMEDIA_TYPE_AUDIO || codec_type==AVMEDIA_TYPE_SUBTITLE){
yading@11:                     mov->tracks[i].secondary= not_first[codec_type];
yading@11:                     not_first[codec_type]= 1;
yading@11:                 }
yading@11:             }
yading@11:             mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
yading@11:         }
yading@11:     }
yading@11:     if (mov->flags & FF_MOV_FLAG_FRAGMENT)
yading@11:         mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
yading@11: 
yading@11:     if (mov->mode == MODE_PSP)
yading@11:         mov_write_uuidusmt_tag(pb, s);
yading@11:     else
yading@11:         mov_write_udta_tag(pb, mov, s);
yading@11: 
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static void param_write_int(AVIOContext *pb, const char *name, int value)
yading@11: {
yading@11:     avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
yading@11: }
yading@11: 
yading@11: static void param_write_string(AVIOContext *pb, const char *name, const char *value)
yading@11: {
yading@11:     avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
yading@11: }
yading@11: 
yading@11: static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
yading@11: {
yading@11:     char buf[150];
yading@11:     len = FFMIN(sizeof(buf)/2 - 1, len);
yading@11:     ff_data_to_hex(buf, value, len, 0);
yading@11:     buf[2*len] = '\0';
yading@11:     avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
yading@11: }
yading@11: 
yading@11: static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     int i;
yading@11:     const uint8_t uuid[] = {
yading@11:         0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
yading@11:         0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
yading@11:     };
yading@11: 
yading@11:     avio_wb32(pb, 0);
yading@11:     ffio_wfourcc(pb, "uuid");
yading@11:     avio_write(pb, uuid, sizeof(uuid));
yading@11:     avio_wb32(pb, 0);
yading@11: 
yading@11:     avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
yading@11:     avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
yading@11:     avio_printf(pb, "<head>\n");
yading@11:     avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
yading@11:                     LIBAVFORMAT_IDENT);
yading@11:     avio_printf(pb, "</head>\n");
yading@11:     avio_printf(pb, "<body>\n");
yading@11:     avio_printf(pb, "<switch>\n");
yading@11:     for (i = 0; i < mov->nb_streams; i++) {
yading@11:         MOVTrack *track = &mov->tracks[i];
yading@11:         const char *type;
yading@11:         /* track->track_id is initialized in write_moov, and thus isn't known
yading@11:          * here yet */
yading@11:         int track_id = i + 1;
yading@11: 
yading@11:         if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
yading@11:             type = "video";
yading@11:         } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
yading@11:             type = "audio";
yading@11:         } else {
yading@11:             continue;
yading@11:         }
yading@11:         avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
yading@11:                                                        track->enc->bit_rate);
yading@11:         param_write_int(pb, "systemBitrate", track->enc->bit_rate);
yading@11:         param_write_int(pb, "trackID", track_id);
yading@11:         if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
yading@11:             if (track->enc->codec_id == AV_CODEC_ID_H264) {
yading@11:                 uint8_t *ptr;
yading@11:                 int size = track->enc->extradata_size;
yading@11:                 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
yading@11:                                                    &size)) {
yading@11:                     param_write_hex(pb, "CodecPrivateData",
yading@11:                                     ptr ? ptr : track->enc->extradata,
yading@11:                                     size);
yading@11:                     av_free(ptr);
yading@11:                 }
yading@11:                 param_write_string(pb, "FourCC", "H264");
yading@11:             } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
yading@11:                 param_write_string(pb, "FourCC", "WVC1");
yading@11:                 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
yading@11:                                 track->enc->extradata_size);
yading@11:             }
yading@11:             param_write_int(pb, "MaxWidth", track->enc->width);
yading@11:             param_write_int(pb, "MaxHeight", track->enc->height);
yading@11:             param_write_int(pb, "DisplayWidth", track->enc->width);
yading@11:             param_write_int(pb, "DisplayHeight", track->enc->height);
yading@11:         } else {
yading@11:             if (track->enc->codec_id == AV_CODEC_ID_AAC) {
yading@11:                 param_write_string(pb, "FourCC", "AACL");
yading@11:             } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
yading@11:                 param_write_string(pb, "FourCC", "WMAP");
yading@11:             }
yading@11:             param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
yading@11:                             track->enc->extradata_size);
yading@11:             param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
yading@11:                                                 track->enc->codec_id));
yading@11:             param_write_int(pb, "Channels", track->enc->channels);
yading@11:             param_write_int(pb, "SamplingRate", track->enc->sample_rate);
yading@11:             param_write_int(pb, "BitsPerSample", 16);
yading@11:             param_write_int(pb, "PacketSize", track->enc->block_align ?
yading@11:                                               track->enc->block_align : 4);
yading@11:         }
yading@11:         avio_printf(pb, "</%s>\n", type);
yading@11:     }
yading@11:     avio_printf(pb, "</switch>\n");
yading@11:     avio_printf(pb, "</body>\n");
yading@11:     avio_printf(pb, "</smil>\n");
yading@11: 
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
yading@11: {
yading@11:     avio_wb32(pb, 16);
yading@11:     ffio_wfourcc(pb, "mfhd");
yading@11:     avio_wb32(pb, 0);
yading@11:     avio_wb32(pb, mov->fragments);
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static int mov_write_tfhd_tag(AVIOContext *pb, MOVTrack *track,
yading@11:                               int64_t moof_offset)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
yading@11:                      MOV_TFHD_BASE_DATA_OFFSET;
yading@11:     if (!track->entry) {
yading@11:         flags |= MOV_TFHD_DURATION_IS_EMPTY;
yading@11:     } else {
yading@11:         flags |= MOV_TFHD_DEFAULT_FLAGS;
yading@11:     }
yading@11: 
yading@11:     /* Don't set a default sample size, the silverlight player refuses
yading@11:      * to play files with that set. Don't set a default sample duration,
yading@11:      * WMP freaks out if it is set. */
yading@11:     if (track->mode == MODE_ISM)
yading@11:         flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION);
yading@11: 
yading@11:     avio_wb32(pb, 0); /* size placeholder */
yading@11:     ffio_wfourcc(pb, "tfhd");
yading@11:     avio_w8(pb, 0); /* version */
yading@11:     avio_wb24(pb, flags);
yading@11: 
yading@11:     avio_wb32(pb, track->track_id); /* track-id */
yading@11:     if (flags & MOV_TFHD_BASE_DATA_OFFSET)
yading@11:         avio_wb64(pb, moof_offset);
yading@11:     if (flags & MOV_TFHD_DEFAULT_DURATION) {
yading@11:         track->default_duration = get_cluster_duration(track, 0);
yading@11:         avio_wb32(pb, track->default_duration);
yading@11:     }
yading@11:     if (flags & MOV_TFHD_DEFAULT_SIZE) {
yading@11:         track->default_size = track->entry ? track->cluster[0].size : 1;
yading@11:         avio_wb32(pb, track->default_size);
yading@11:     } else
yading@11:         track->default_size = -1;
yading@11: 
yading@11:     if (flags & MOV_TFHD_DEFAULT_FLAGS) {
yading@11:         track->default_sample_flags =
yading@11:             track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
yading@11:             (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
yading@11:             MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
yading@11:         avio_wb32(pb, track->default_sample_flags);
yading@11:     }
yading@11: 
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
yading@11: {
yading@11:     return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
yading@11:            (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
yading@11: }
yading@11: 
yading@11: static int mov_write_trun_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     uint32_t flags = MOV_TRUN_DATA_OFFSET;
yading@11:     int i;
yading@11: 
yading@11:     for (i = 0; i < track->entry; i++) {
yading@11:         if (get_cluster_duration(track, i) != track->default_duration)
yading@11:             flags |= MOV_TRUN_SAMPLE_DURATION;
yading@11:         if (track->cluster[i].size != track->default_size)
yading@11:             flags |= MOV_TRUN_SAMPLE_SIZE;
yading@11:         if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
yading@11:             flags |= MOV_TRUN_SAMPLE_FLAGS;
yading@11:     }
yading@11:     if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
yading@11:         flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
yading@11:     if (track->flags & MOV_TRACK_CTTS)
yading@11:         flags |= MOV_TRUN_SAMPLE_CTS;
yading@11: 
yading@11:     avio_wb32(pb, 0); /* size placeholder */
yading@11:     ffio_wfourcc(pb, "trun");
yading@11:     avio_w8(pb, 0); /* version */
yading@11:     avio_wb24(pb, flags);
yading@11: 
yading@11:     avio_wb32(pb, track->entry); /* sample count */
yading@11:     track->moof_size_offset = avio_tell(pb);
yading@11:     avio_wb32(pb, 0); /* data offset */
yading@11:     if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
yading@11:         avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
yading@11: 
yading@11:     for (i = 0; i < track->entry; i++) {
yading@11:         if (flags & MOV_TRUN_SAMPLE_DURATION)
yading@11:             avio_wb32(pb, get_cluster_duration(track, i));
yading@11:         if (flags & MOV_TRUN_SAMPLE_SIZE)
yading@11:             avio_wb32(pb, track->cluster[i].size);
yading@11:         if (flags & MOV_TRUN_SAMPLE_FLAGS)
yading@11:             avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
yading@11:         if (flags & MOV_TRUN_SAMPLE_CTS)
yading@11:             avio_wb32(pb, track->cluster[i].cts);
yading@11:     }
yading@11: 
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     const uint8_t uuid[] = {
yading@11:         0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
yading@11:         0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
yading@11:     };
yading@11: 
yading@11:     avio_wb32(pb, 0); /* size placeholder */
yading@11:     ffio_wfourcc(pb, "uuid");
yading@11:     avio_write(pb, uuid, sizeof(uuid));
yading@11:     avio_w8(pb, 1);
yading@11:     avio_wb24(pb, 0);
yading@11:     avio_wb64(pb, track->frag_start);
yading@11:     avio_wb64(pb, track->start_dts + track->track_duration -
yading@11:                   track->cluster[0].dts);
yading@11: 
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
yading@11:                               MOVTrack *track, int entry)
yading@11: {
yading@11:     int n = track->nb_frag_info - 1 - entry, i;
yading@11:     int size = 8 + 16 + 4 + 1 + 16*n;
yading@11:     const uint8_t uuid[] = {
yading@11:         0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
yading@11:         0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
yading@11:     };
yading@11: 
yading@11:     if (entry < 0)
yading@11:         return 0;
yading@11: 
yading@11:     avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
yading@11:     avio_wb32(pb, size);
yading@11:     ffio_wfourcc(pb, "uuid");
yading@11:     avio_write(pb, uuid, sizeof(uuid));
yading@11:     avio_w8(pb, 1);
yading@11:     avio_wb24(pb, 0);
yading@11:     avio_w8(pb, n);
yading@11:     for (i = 0; i < n; i++) {
yading@11:         int index = entry + 1 + i;
yading@11:         avio_wb64(pb, track->frag_info[index].time);
yading@11:         avio_wb64(pb, track->frag_info[index].duration);
yading@11:     }
yading@11:     if (n < mov->ism_lookahead) {
yading@11:         int free_size = 16*(mov->ism_lookahead - n);
yading@11:         avio_wb32(pb, free_size);
yading@11:         ffio_wfourcc(pb, "free");
yading@11:         for (i = 0; i < free_size - 8; i++)
yading@11:             avio_w8(pb, 0);
yading@11:     }
yading@11: 
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
yading@11:                                MOVTrack *track)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     int i;
yading@11:     for (i = 0; i < mov->ism_lookahead; i++) {
yading@11:         /* Update the tfrf tag for the last ism_lookahead fragments,
yading@11:          * nb_frag_info - 1 is the next fragment to be written. */
yading@11:         mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
yading@11:     }
yading@11:     avio_seek(pb, pos, SEEK_SET);
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
yading@11:                               MOVTrack *track, int64_t moof_offset)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     avio_wb32(pb, 0); /* size placeholder */
yading@11:     ffio_wfourcc(pb, "traf");
yading@11: 
yading@11:     mov_write_tfhd_tag(pb, track, moof_offset);
yading@11:     mov_write_trun_tag(pb, track);
yading@11:     if (mov->mode == MODE_ISM) {
yading@11:         mov_write_tfxd_tag(pb, track);
yading@11: 
yading@11:         if (mov->ism_lookahead) {
yading@11:             int i, size = 16 + 4 + 1 + 16*mov->ism_lookahead;
yading@11: 
yading@11:             track->tfrf_offset = avio_tell(pb);
yading@11:             avio_wb32(pb, 8 + size);
yading@11:             ffio_wfourcc(pb, "free");
yading@11:             for (i = 0; i < size; i++)
yading@11:                 avio_w8(pb, 0);
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb), end;
yading@11:     int i, moof_size;
yading@11: 
yading@11:     avio_wb32(pb, 0); /* size placeholder */
yading@11:     ffio_wfourcc(pb, "moof");
yading@11: 
yading@11:     mov_write_mfhd_tag(pb, mov);
yading@11:     for (i = 0; i < mov->nb_streams; i++) {
yading@11:         MOVTrack *track = &mov->tracks[i];
yading@11:         if (tracks >= 0 && i != tracks)
yading@11:             continue;
yading@11:         if (!track->entry)
yading@11:             continue;
yading@11:         mov_write_traf_tag(pb, mov, track, pos);
yading@11:     }
yading@11: 
yading@11:     end = avio_tell(pb);
yading@11:     moof_size = end - pos;
yading@11:     for (i = 0; i < mov->nb_streams; i++) {
yading@11:         MOVTrack *track = &mov->tracks[i];
yading@11:         if (tracks >= 0 && i != tracks)
yading@11:             continue;
yading@11:         if (!track->entry)
yading@11:             continue;
yading@11:         avio_seek(pb, mov->tracks[i].moof_size_offset, SEEK_SET);
yading@11:         avio_wb32(pb, moof_size + 8 + mov->tracks[i].data_offset);
yading@11:     }
yading@11:     avio_seek(pb, end, SEEK_SET);
yading@11: 
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     int i;
yading@11: 
yading@11:     avio_wb32(pb, 0); /* size placeholder */
yading@11:     ffio_wfourcc(pb, "tfra");
yading@11:     avio_w8(pb, 1); /* version */
yading@11:     avio_wb24(pb, 0);
yading@11: 
yading@11:     avio_wb32(pb, track->track_id);
yading@11:     avio_wb32(pb, 0); /* length of traf/trun/sample num */
yading@11:     avio_wb32(pb, track->nb_frag_info);
yading@11:     for (i = 0; i < track->nb_frag_info; i++) {
yading@11:         avio_wb64(pb, track->frag_info[i].time);
yading@11:         avio_wb64(pb, track->frag_info[i].offset);
yading@11:         avio_w8(pb, 1); /* traf number */
yading@11:         avio_w8(pb, 1); /* trun number */
yading@11:         avio_w8(pb, 1); /* sample number */
yading@11:     }
yading@11: 
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
yading@11: {
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     int i;
yading@11: 
yading@11:     avio_wb32(pb, 0); /* size placeholder */
yading@11:     ffio_wfourcc(pb, "mfra");
yading@11:     /* An empty mfra atom is enough to indicate to the publishing point that
yading@11:      * the stream has ended. */
yading@11:     if (mov->flags & FF_MOV_FLAG_ISML)
yading@11:         return update_size(pb, pos);
yading@11: 
yading@11:     for (i = 0; i < mov->nb_streams; i++) {
yading@11:         MOVTrack *track = &mov->tracks[i];
yading@11:         if (track->nb_frag_info)
yading@11:             mov_write_tfra_tag(pb, track);
yading@11:     }
yading@11: 
yading@11:     avio_wb32(pb, 16);
yading@11:     ffio_wfourcc(pb, "mfro");
yading@11:     avio_wb32(pb, 0); /* version + flags */
yading@11:     avio_wb32(pb, avio_tell(pb) + 4 - pos);
yading@11: 
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
yading@11: {
yading@11:     avio_wb32(pb, 8);    // placeholder for extended size field (64 bit)
yading@11:     ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
yading@11: 
yading@11:     mov->mdat_pos = avio_tell(pb);
yading@11:     avio_wb32(pb, 0); /* size placeholder*/
yading@11:     ffio_wfourcc(pb, "mdat");
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: /* TODO: This needs to be more general */
yading@11: static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
yading@11: {
yading@11:     MOVMuxContext *mov = s->priv_data;
yading@11:     int64_t pos = avio_tell(pb);
yading@11:     int has_h264 = 0, has_video = 0;
yading@11:     int minor = 0x200;
yading@11:     int i;
yading@11: 
yading@11:     for (i = 0; i < s->nb_streams; i++) {
yading@11:         AVStream *st = s->streams[i];
yading@11:         if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
yading@11:             has_video = 1;
yading@11:         if (st->codec->codec_id == AV_CODEC_ID_H264)
yading@11:             has_h264 = 1;
yading@11:     }
yading@11: 
yading@11:     avio_wb32(pb, 0); /* size */
yading@11:     ffio_wfourcc(pb, "ftyp");
yading@11: 
yading@11:     if (mov->mode == MODE_3GP) {
yading@11:         ffio_wfourcc(pb, has_h264 ? "3gp6"  : "3gp4");
yading@11:         minor =     has_h264 ?   0x100 :   0x200;
yading@11:     } else if (mov->mode & MODE_3G2) {
yading@11:         ffio_wfourcc(pb, has_h264 ? "3g2b"  : "3g2a");
yading@11:         minor =     has_h264 ? 0x20000 : 0x10000;
yading@11:     }else if (mov->mode == MODE_PSP)
yading@11:         ffio_wfourcc(pb, "MSNV");
yading@11:     else if (mov->mode == MODE_MP4)
yading@11:         ffio_wfourcc(pb, "isom");
yading@11:     else if (mov->mode == MODE_IPOD)
yading@11:         ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
yading@11:     else if (mov->mode == MODE_ISM)
yading@11:         ffio_wfourcc(pb, "isml");
yading@11:     else if (mov->mode == MODE_F4V)
yading@11:         ffio_wfourcc(pb, "f4v ");
yading@11:     else
yading@11:         ffio_wfourcc(pb, "qt  ");
yading@11: 
yading@11:     avio_wb32(pb, minor);
yading@11: 
yading@11:     if(mov->mode == MODE_MOV)
yading@11:         ffio_wfourcc(pb, "qt  ");
yading@11:     else if (mov->mode == MODE_ISM) {
yading@11:         ffio_wfourcc(pb, "piff");
yading@11:         ffio_wfourcc(pb, "iso2");
yading@11:     } else {
yading@11:         ffio_wfourcc(pb, "isom");
yading@11:         ffio_wfourcc(pb, "iso2");
yading@11:         if(has_h264)
yading@11:             ffio_wfourcc(pb, "avc1");
yading@11:     }
yading@11: 
yading@11:     if (mov->mode == MODE_3GP)
yading@11:         ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
yading@11:     else if (mov->mode & MODE_3G2)
yading@11:         ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
yading@11:     else if (mov->mode == MODE_PSP)
yading@11:         ffio_wfourcc(pb, "MSNV");
yading@11:     else if (mov->mode == MODE_MP4)
yading@11:         ffio_wfourcc(pb, "mp41");
yading@11:     return update_size(pb, pos);
yading@11: }
yading@11: 
yading@11: static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
yading@11: {
yading@11:     AVCodecContext *video_codec = s->streams[0]->codec;
yading@11:     AVCodecContext *audio_codec = s->streams[1]->codec;
yading@11:     int audio_rate = audio_codec->sample_rate;
yading@11:     int frame_rate = ((video_codec->time_base.den) * (0x10000))/ (video_codec->time_base.num);
yading@11:     int audio_kbitrate = audio_codec->bit_rate / 1000;
yading@11:     int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
yading@11: 
yading@11:     avio_wb32(pb, 0x94); /* size */
yading@11:     ffio_wfourcc(pb, "uuid");
yading@11:     ffio_wfourcc(pb, "PROF");
yading@11: 
yading@11:     avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
yading@11:     avio_wb32(pb, 0xbb88695c);
yading@11:     avio_wb32(pb, 0xfac9c740);
yading@11: 
yading@11:     avio_wb32(pb, 0x0);  /* ? */
yading@11:     avio_wb32(pb, 0x3);  /* 3 sections ? */
yading@11: 
yading@11:     avio_wb32(pb, 0x14); /* size */
yading@11:     ffio_wfourcc(pb, "FPRF");
yading@11:     avio_wb32(pb, 0x0);  /* ? */
yading@11:     avio_wb32(pb, 0x0);  /* ? */
yading@11:     avio_wb32(pb, 0x0);  /* ? */
yading@11: 
yading@11:     avio_wb32(pb, 0x2c);  /* size */
yading@11:     ffio_wfourcc(pb, "APRF");/* audio */
yading@11:     avio_wb32(pb, 0x0);
yading@11:     avio_wb32(pb, 0x2);   /* TrackID */
yading@11:     ffio_wfourcc(pb, "mp4a");
yading@11:     avio_wb32(pb, 0x20f);
yading@11:     avio_wb32(pb, 0x0);
yading@11:     avio_wb32(pb, audio_kbitrate);
yading@11:     avio_wb32(pb, audio_kbitrate);
yading@11:     avio_wb32(pb, audio_rate);
yading@11:     avio_wb32(pb, audio_codec->channels);
yading@11: 
yading@11:     avio_wb32(pb, 0x34);  /* size */
yading@11:     ffio_wfourcc(pb, "VPRF");   /* video */
yading@11:     avio_wb32(pb, 0x0);
yading@11:     avio_wb32(pb, 0x1);    /* TrackID */
yading@11:     if (video_codec->codec_id == AV_CODEC_ID_H264) {
yading@11:         ffio_wfourcc(pb, "avc1");
yading@11:         avio_wb16(pb, 0x014D);
yading@11:         avio_wb16(pb, 0x0015);
yading@11:     } else {
yading@11:         ffio_wfourcc(pb, "mp4v");
yading@11:         avio_wb16(pb, 0x0000);
yading@11:         avio_wb16(pb, 0x0103);
yading@11:     }
yading@11:     avio_wb32(pb, 0x0);
yading@11:     avio_wb32(pb, video_kbitrate);
yading@11:     avio_wb32(pb, video_kbitrate);
yading@11:     avio_wb32(pb, frame_rate);
yading@11:     avio_wb32(pb, frame_rate);
yading@11:     avio_wb16(pb, video_codec->width);
yading@11:     avio_wb16(pb, video_codec->height);
yading@11:     avio_wb32(pb, 0x010001); /* ? */
yading@11: }
yading@11: 
yading@11: static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
yading@11: {
yading@11:     uint32_t c = -1;
yading@11:     int i, closed_gop = 0;
yading@11: 
yading@11:     for (i = 0; i < pkt->size - 4; i++) {
yading@11:         c = (c<<8) + pkt->data[i];
yading@11:         if (c == 0x1b8) { // gop
yading@11:             closed_gop = pkt->data[i+4]>>6 & 0x01;
yading@11:         } else if (c == 0x100) { // pic
yading@11:             int temp_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
yading@11:             if (!temp_ref || closed_gop) // I picture is not reordered
yading@11:                 *flags = MOV_SYNC_SAMPLE;
yading@11:             else
yading@11:                 *flags = MOV_PARTIAL_SYNC_SAMPLE;
yading@11:             break;
yading@11:         }
yading@11:     }
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
yading@11: {
yading@11:     const uint8_t *start, *next, *end = pkt->data + pkt->size;
yading@11:     int seq = 0, entry = 0;
yading@11:     int key = pkt->flags & AV_PKT_FLAG_KEY;
yading@11:     start = find_next_marker(pkt->data, end);
yading@11:     for (next = start; next < end; start = next) {
yading@11:         next = find_next_marker(start + 4, end);
yading@11:         switch (AV_RB32(start)) {
yading@11:         case VC1_CODE_SEQHDR:
yading@11:             seq = 1;
yading@11:             break;
yading@11:         case VC1_CODE_ENTRYPOINT:
yading@11:             entry = 1;
yading@11:             break;
yading@11:         case VC1_CODE_SLICE:
yading@11:             trk->vc1_info.slices = 1;
yading@11:             break;
yading@11:         }
yading@11:     }
yading@11:     if (!trk->entry && !fragment) {
yading@11:         /* First packet in first fragment */
yading@11:         trk->vc1_info.first_packet_seq   = seq;
yading@11:         trk->vc1_info.first_packet_entry = entry;
yading@11:     } else if ((seq && !trk->vc1_info.packet_seq) ||
yading@11:                (entry && !trk->vc1_info.packet_entry)) {
yading@11:         int i;
yading@11:         for (i = 0; i < trk->entry; i++)
yading@11:             trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
yading@11:         trk->has_keyframes = 0;
yading@11:         if (seq)
yading@11:             trk->vc1_info.packet_seq = 1;
yading@11:         if (entry)
yading@11:             trk->vc1_info.packet_entry = 1;
yading@11:         if (!fragment) {
yading@11:             /* First fragment */
yading@11:             if ((!seq   || trk->vc1_info.first_packet_seq) &&
yading@11:                 (!entry || trk->vc1_info.first_packet_entry)) {
yading@11:                 /* First packet had the same headers as this one, readd the
yading@11:                  * sync sample flag. */
yading@11:                 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
yading@11:                 trk->has_keyframes = 1;
yading@11:             }
yading@11:         }
yading@11:     }
yading@11:     if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
yading@11:         key = seq && entry;
yading@11:     else if (trk->vc1_info.packet_seq)
yading@11:         key = seq;
yading@11:     else if (trk->vc1_info.packet_entry)
yading@11:         key = entry;
yading@11:     if (key) {
yading@11:         trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
yading@11:         trk->has_keyframes++;
yading@11:     }
yading@11: }
yading@11: 
yading@11: static int get_moov_size(AVFormatContext *s)
yading@11: {
yading@11:     int ret;
yading@11:     uint8_t *buf;
yading@11:     AVIOContext *moov_buf;
yading@11:     MOVMuxContext *mov = s->priv_data;
yading@11: 
yading@11:     if ((ret = avio_open_dyn_buf(&moov_buf)) < 0)
yading@11:         return ret;
yading@11:     mov_write_moov_tag(moov_buf, mov, s);
yading@11:     ret = avio_close_dyn_buf(moov_buf, &buf);
yading@11:     av_free(buf);
yading@11:     return ret;
yading@11: }
yading@11: 
yading@11: static int mov_flush_fragment(AVFormatContext *s)
yading@11: {
yading@11:     MOVMuxContext *mov = s->priv_data;
yading@11:     int i, first_track = -1;
yading@11:     int64_t mdat_size = 0;
yading@11: 
yading@11:     if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
yading@11:         return 0;
yading@11: 
yading@11:     if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
yading@11:         int64_t pos = avio_tell(s->pb);
yading@11:         uint8_t *buf;
yading@11:         int buf_size, moov_size;
yading@11: 
yading@11:         for (i = 0; i < mov->nb_streams; i++)
yading@11:             if (!mov->tracks[i].entry)
yading@11:                 break;
yading@11:         /* Don't write the initial moov unless all tracks have data */
yading@11:         if (i < mov->nb_streams)
yading@11:             return 0;
yading@11: 
yading@11:         moov_size = get_moov_size(s);
yading@11:         for (i = 0; i < mov->nb_streams; i++)
yading@11:             mov->tracks[i].data_offset = pos + moov_size + 8;
yading@11: 
yading@11:         mov_write_moov_tag(s->pb, mov, s);
yading@11: 
yading@11:         buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
yading@11:         mov->mdat_buf = NULL;
yading@11:         avio_wb32(s->pb, buf_size + 8);
yading@11:         ffio_wfourcc(s->pb, "mdat");
yading@11:         avio_write(s->pb, buf, buf_size);
yading@11:         av_free(buf);
yading@11: 
yading@11:         mov->fragments++;
yading@11:         mov->mdat_size = 0;
yading@11:         for (i = 0; i < mov->nb_streams; i++) {
yading@11:             if (mov->tracks[i].entry)
yading@11:                 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
yading@11:                                              mov->tracks[i].track_duration -
yading@11:                                              mov->tracks[i].cluster[0].dts;
yading@11:             mov->tracks[i].entry = 0;
yading@11:         }
yading@11:         avio_flush(s->pb);
yading@11:         return 0;
yading@11:     }
yading@11: 
yading@11:     for (i = 0; i < mov->nb_streams; i++) {
yading@11:         MOVTrack *track = &mov->tracks[i];
yading@11:         if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
yading@11:             track->data_offset = 0;
yading@11:         else
yading@11:             track->data_offset = mdat_size;
yading@11:         if (!track->mdat_buf)
yading@11:             continue;
yading@11:         mdat_size += avio_tell(track->mdat_buf);
yading@11:         if (first_track < 0)
yading@11:             first_track = i;
yading@11:     }
yading@11: 
yading@11:     if (!mdat_size)
yading@11:         return 0;
yading@11: 
yading@11:     for (i = 0; i < mov->nb_streams; i++) {
yading@11:         MOVTrack *track = &mov->tracks[i];
yading@11:         int buf_size, write_moof = 1, moof_tracks = -1;
yading@11:         uint8_t *buf;
yading@11:         int64_t duration = 0;
yading@11: 
yading@11:         if (track->entry)
yading@11:             duration = track->start_dts + track->track_duration -
yading@11:                        track->cluster[0].dts;
yading@11:         if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
yading@11:             if (!track->mdat_buf)
yading@11:                 continue;
yading@11:             mdat_size = avio_tell(track->mdat_buf);
yading@11:             moof_tracks = i;
yading@11:         } else {
yading@11:             write_moof = i == first_track;
yading@11:         }
yading@11: 
yading@11:         if (write_moof) {
yading@11:             MOVFragmentInfo *info;
yading@11:             avio_flush(s->pb);
yading@11:             track->nb_frag_info++;
yading@11:             track->frag_info = av_realloc(track->frag_info,
yading@11:                                           sizeof(*track->frag_info) *
yading@11:                                           track->nb_frag_info);
yading@11:             info = &track->frag_info[track->nb_frag_info - 1];
yading@11:             info->offset   = avio_tell(s->pb);
yading@11:             info->time     = mov->tracks[i].frag_start;
yading@11:             info->duration = duration;
yading@11:             mov_write_tfrf_tags(s->pb, mov, track);
yading@11: 
yading@11:             mov_write_moof_tag(s->pb, mov, moof_tracks);
yading@11:             info->tfrf_offset = track->tfrf_offset;
yading@11:             mov->fragments++;
yading@11: 
yading@11:             avio_wb32(s->pb, mdat_size + 8);
yading@11:             ffio_wfourcc(s->pb, "mdat");
yading@11:         }
yading@11: 
yading@11:         if (track->entry)
yading@11:             track->frag_start += duration;
yading@11:         track->entry = 0;
yading@11:         if (!track->mdat_buf)
yading@11:             continue;
yading@11:         buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
yading@11:         track->mdat_buf = NULL;
yading@11: 
yading@11:         avio_write(s->pb, buf, buf_size);
yading@11:         av_free(buf);
yading@11:     }
yading@11: 
yading@11:     mov->mdat_size = 0;
yading@11: 
yading@11:     avio_flush(s->pb);
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
yading@11: {
yading@11:     MOVMuxContext *mov = s->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11:     MOVTrack *trk = &mov->tracks[pkt->stream_index];
yading@11:     AVCodecContext *enc = trk->enc;
yading@11:     unsigned int samples_in_chunk = 0;
yading@11:     int size= pkt->size;
yading@11:     uint8_t *reformatted_data = NULL;
yading@11: 
yading@11:     if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
yading@11:         int ret;
yading@11:         if (mov->fragments > 0) {
yading@11:             if (!trk->mdat_buf) {
yading@11:                 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
yading@11:                     return ret;
yading@11:             }
yading@11:             pb = trk->mdat_buf;
yading@11:         } else {
yading@11:             if (!mov->mdat_buf) {
yading@11:                 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
yading@11:                     return ret;
yading@11:             }
yading@11:             pb = mov->mdat_buf;
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
yading@11:         /* We must find out how many AMR blocks there are in one packet */
yading@11:         static uint16_t packed_size[16] =
yading@11:             {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
yading@11:         int len = 0;
yading@11: 
yading@11:         while (len < size && samples_in_chunk < 100) {
yading@11:             len += packed_size[(pkt->data[len] >> 3) & 0x0F];
yading@11:             samples_in_chunk++;
yading@11:         }
yading@11:         if (samples_in_chunk > 1) {
yading@11:             av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
yading@11:             return -1;
yading@11:         }
yading@11:     } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
yading@11:                enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
yading@11:         samples_in_chunk = enc->frame_size;
yading@11:     } else if (trk->sample_size)
yading@11:         samples_in_chunk = size / trk->sample_size;
yading@11:     else
yading@11:         samples_in_chunk = 1;
yading@11: 
yading@11:     /* copy extradata if it exists */
yading@11:     if (trk->vos_len == 0 && enc->extradata_size > 0) {
yading@11:         trk->vos_len = enc->extradata_size;
yading@11:         trk->vos_data = av_malloc(trk->vos_len);
yading@11:         memcpy(trk->vos_data, enc->extradata, trk->vos_len);
yading@11:     }
yading@11: 
yading@11:     if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
yading@11:         (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
yading@11:         if (!s->streams[pkt->stream_index]->nb_frames) {
yading@11:             av_log(s, AV_LOG_ERROR, "malformated aac bitstream, use -absf aac_adtstoasc\n");
yading@11:             return -1;
yading@11:         }
yading@11:         av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
yading@11:     }
yading@11:     if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
yading@11:         /* from x264 or from bytestream h264 */
yading@11:         /* nal reformating needed */
yading@11:         if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
yading@11:             ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
yading@11:                                        &size);
yading@11:             avio_write(pb, reformatted_data, size);
yading@11:         } else {
yading@11:             size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
yading@11:         }
yading@11:     } else {
yading@11:         avio_write(pb, pkt->data, size);
yading@11:     }
yading@11: 
yading@11:     if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
yading@11:          enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
yading@11:         /* copy frame to create needed atoms */
yading@11:         trk->vos_len = size;
yading@11:         trk->vos_data = av_malloc(size);
yading@11:         if (!trk->vos_data)
yading@11:             return AVERROR(ENOMEM);
yading@11:         memcpy(trk->vos_data, pkt->data, size);
yading@11:     }
yading@11: 
yading@11:     if (!(trk->entry % MOV_INDEX_CLUSTER_SIZE)) {
yading@11:         trk->cluster = av_realloc_f(trk->cluster, sizeof(*trk->cluster), (trk->entry + MOV_INDEX_CLUSTER_SIZE));
yading@11:         if (!trk->cluster)
yading@11:             return -1;
yading@11:     }
yading@11: 
yading@11:     trk->cluster[trk->entry].pos = avio_tell(pb) - size;
yading@11:     trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
yading@11:     trk->cluster[trk->entry].chunkNum = 0;
yading@11:     trk->cluster[trk->entry].size = size;
yading@11:     trk->cluster[trk->entry].entries = samples_in_chunk;
yading@11:     trk->cluster[trk->entry].dts = pkt->dts;
yading@11:     if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
yading@11:         /* First packet of a new fragment. We already wrote the duration
yading@11:          * of the last packet of the previous fragment based on track_duration,
yading@11:          * which might not exactly match our dts. Therefore adjust the dts
yading@11:          * of this packet to be what the previous packets duration implies. */
yading@11:         trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
yading@11:     }
yading@11:     if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !supports_edts(mov)) {
yading@11:         trk->cluster[trk->entry].dts = trk->start_dts = 0;
yading@11:     }
yading@11:     if (trk->start_dts == AV_NOPTS_VALUE)
yading@11:         trk->start_dts = pkt->dts;
yading@11:     trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
yading@11:     trk->last_sample_is_subtitle_end = 0;
yading@11: 
yading@11:     if (pkt->pts == AV_NOPTS_VALUE) {
yading@11:         av_log(s, AV_LOG_WARNING, "pts has no value\n");
yading@11:         pkt->pts = pkt->dts;
yading@11:     }
yading@11:     if (pkt->dts != pkt->pts)
yading@11:         trk->flags |= MOV_TRACK_CTTS;
yading@11:     trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
yading@11:     trk->cluster[trk->entry].flags = 0;
yading@11:     if (enc->codec_id == AV_CODEC_ID_VC1) {
yading@11:         mov_parse_vc1_frame(pkt, trk, mov->fragments);
yading@11:     } else if (pkt->flags & AV_PKT_FLAG_KEY) {
yading@11:         if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
yading@11:             trk->entry > 0) { // force sync sample for the first key frame
yading@11:             mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
yading@11:             if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
yading@11:                 trk->flags |= MOV_TRACK_STPS;
yading@11:         } else {
yading@11:             trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
yading@11:         }
yading@11:         if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
yading@11:             trk->has_keyframes++;
yading@11:     }
yading@11:     trk->entry++;
yading@11:     trk->sample_count += samples_in_chunk;
yading@11:     mov->mdat_size += size;
yading@11: 
yading@11:     avio_flush(pb);
yading@11: 
yading@11:     if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
yading@11:         ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
yading@11:                                  reformatted_data, size);
yading@11:     av_free(reformatted_data);
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
yading@11: {
yading@11:         MOVMuxContext *mov = s->priv_data;
yading@11:         MOVTrack *trk = &mov->tracks[pkt->stream_index];
yading@11:         AVCodecContext *enc = trk->enc;
yading@11:         int64_t frag_duration = 0;
yading@11:         int size = pkt->size;
yading@11: 
yading@11:         if (!pkt->size) return 0; /* Discard 0 sized packets */
yading@11: 
yading@11:         if (trk->entry && pkt->stream_index < s->nb_streams)
yading@11:             frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
yading@11:                                          s->streams[pkt->stream_index]->time_base,
yading@11:                                          AV_TIME_BASE_Q);
yading@11:         if ((mov->max_fragment_duration &&
yading@11:              frag_duration >= mov->max_fragment_duration) ||
yading@11:              (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
yading@11:              (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
yading@11:               enc->codec_type == AVMEDIA_TYPE_VIDEO &&
yading@11:               trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
yading@11:             if (frag_duration >= mov->min_fragment_duration)
yading@11:                 mov_flush_fragment(s);
yading@11:         }
yading@11: 
yading@11:         return ff_mov_write_packet(s, pkt);
yading@11: }
yading@11: 
yading@11: static int mov_write_subtitle_end_packet(AVFormatContext *s,
yading@11:                                          int stream_index,
yading@11:                                          int64_t dts) {
yading@11:     AVPacket end;
yading@11:     uint8_t data[2] = {0};
yading@11:     int ret;
yading@11: 
yading@11:     av_init_packet(&end);
yading@11:     end.size = sizeof(data);
yading@11:     end.data = data;
yading@11:     end.pts = dts;
yading@11:     end.dts = dts;
yading@11:     end.duration = 0;
yading@11:     end.stream_index = stream_index;
yading@11: 
yading@11:     ret = mov_write_single_packet(s, &end);
yading@11:     av_free_packet(&end);
yading@11: 
yading@11:     return ret;
yading@11: }
yading@11: 
yading@11: static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
yading@11: {
yading@11:     if (!pkt) {
yading@11:         mov_flush_fragment(s);
yading@11:         return 1;
yading@11:     } else {
yading@11:         int i;
yading@11:         MOVMuxContext *mov = s->priv_data;
yading@11: 
yading@11:         if (!pkt->size) return 0; /* Discard 0 sized packets */
yading@11: 
yading@11:         /*
yading@11:          * Subtitles require special handling.
yading@11:          *
yading@11:          * 1) For full complaince, every track must have a sample at
yading@11:          * dts == 0, which is rarely true for subtitles. So, as soon
yading@11:          * as we see any packet with dts > 0, write an empty subtitle
yading@11:          * at dts == 0 for any subtitle track with no samples in it.
yading@11:          *
yading@11:          * 2) For each subtitle track, check if the current packet's
yading@11:          * dts is past the duration of the last subtitle sample. If
yading@11:          * so, we now need to write an end sample for that subtitle.
yading@11:          *
yading@11:          * This must be done conditionally to allow for subtitles that
yading@11:          * immediately replace each other, in which case an end sample
yading@11:          * is not needed, and is, in fact, actively harmful.
yading@11:          *
yading@11:          * 3) See mov_write_trailer for how the final end sample is
yading@11:          * handled.
yading@11:          */
yading@11:         for (i = 0; i < mov->nb_streams; i++) {
yading@11:             MOVTrack *trk = &mov->tracks[i];
yading@11:             int ret;
yading@11: 
yading@11:             if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
yading@11:                 trk->track_duration < pkt->dts &&
yading@11:                 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
yading@11:                 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
yading@11:                 if (ret < 0) return ret;
yading@11:                 trk->last_sample_is_subtitle_end = 1;
yading@11:             }
yading@11:         }
yading@11: 
yading@11:         return mov_write_single_packet(s, pkt);
yading@11:     }
yading@11: }
yading@11: 
yading@11: // QuickTime chapters involve an additional text track with the chapter names
yading@11: // as samples, and a tref pointing from the other tracks to the chapter one.
yading@11: static void mov_create_chapter_track(AVFormatContext *s, int tracknum)
yading@11: {
yading@11:     AVIOContext *pb;
yading@11: 
yading@11:     MOVMuxContext *mov = s->priv_data;
yading@11:     MOVTrack *track = &mov->tracks[tracknum];
yading@11:     AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
yading@11:     int i, len;
yading@11: 
yading@11:     track->mode = mov->mode;
yading@11:     track->tag = MKTAG('t','e','x','t');
yading@11:     track->timescale = MOV_TIMESCALE;
yading@11:     track->enc = avcodec_alloc_context3(NULL);
yading@11:     track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
yading@11: 
yading@11:     if (avio_open_dyn_buf(&pb) >= 0) {
yading@11:         int size;
yading@11:         uint8_t *buf;
yading@11: 
yading@11:         /* Stub header (usually for Quicktime chapter track) */
yading@11:         // TextSampleEntry
yading@11:         avio_wb32(pb, 0x01); // displayFlags
yading@11:         avio_w8(pb, 0x00);   // horizontal justification
yading@11:         avio_w8(pb, 0x00);   // vertical justification
yading@11:         avio_w8(pb, 0x00);   // bgColourRed
yading@11:         avio_w8(pb, 0x00);   // bgColourGreen
yading@11:         avio_w8(pb, 0x00);   // bgColourBlue
yading@11:         avio_w8(pb, 0x00);   // bgColourAlpha
yading@11:         // BoxRecord
yading@11:         avio_wb16(pb, 0x00); // defTextBoxTop
yading@11:         avio_wb16(pb, 0x00); // defTextBoxLeft
yading@11:         avio_wb16(pb, 0x00); // defTextBoxBottom
yading@11:         avio_wb16(pb, 0x00); // defTextBoxRight
yading@11:         // StyleRecord
yading@11:         avio_wb16(pb, 0x00); // startChar
yading@11:         avio_wb16(pb, 0x00); // endChar
yading@11:         avio_wb16(pb, 0x01); // fontID
yading@11:         avio_w8(pb, 0x00);   // fontStyleFlags
yading@11:         avio_w8(pb, 0x00);   // fontSize
yading@11:         avio_w8(pb, 0x00);   // fgColourRed
yading@11:         avio_w8(pb, 0x00);   // fgColourGreen
yading@11:         avio_w8(pb, 0x00);   // fgColourBlue
yading@11:         avio_w8(pb, 0x00);   // fgColourAlpha
yading@11:         // FontTableBox
yading@11:         avio_wb32(pb, 0x0D); // box size
yading@11:         ffio_wfourcc(pb, "ftab"); // box atom name
yading@11:         avio_wb16(pb, 0x01); // entry count
yading@11:         // FontRecord
yading@11:         avio_wb16(pb, 0x01); // font ID
yading@11:         avio_w8(pb, 0x00);   // font name length
yading@11: 
yading@11:         if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
yading@11:             track->enc->extradata = buf;
yading@11:             track->enc->extradata_size = size;
yading@11:         } else {
yading@11:             av_free(&buf);
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     for (i = 0; i < s->nb_chapters; i++) {
yading@11:         AVChapter *c = s->chapters[i];
yading@11:         AVDictionaryEntry *t;
yading@11: 
yading@11:         int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
yading@11:         pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
yading@11:         pkt.duration = end - pkt.dts;
yading@11: 
yading@11:         if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
yading@11:             len = strlen(t->value);
yading@11:             pkt.size = len+2;
yading@11:             pkt.data = av_malloc(pkt.size);
yading@11:             AV_WB16(pkt.data, len);
yading@11:             memcpy(pkt.data+2, t->value, len);
yading@11:             ff_mov_write_packet(s, &pkt);
yading@11:             av_freep(&pkt.data);
yading@11:         }
yading@11:     }
yading@11: }
yading@11: 
yading@11: static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
yading@11: {
yading@11:     int ret;
yading@11:     MOVMuxContext *mov  = s->priv_data;
yading@11:     MOVTrack *track     = &mov->tracks[index];
yading@11:     AVStream *src_st    = s->streams[src_index];
yading@11:     AVTimecode tc;
yading@11:     AVPacket pkt    = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
yading@11:     AVRational rate = {src_st->codec->time_base.den, src_st->codec->time_base.num};
yading@11: 
yading@11:     /* if the codec time base makes no sense, try to fallback on stream frame rate */
yading@11:     if (av_timecode_check_frame_rate(rate) < 0) {
yading@11:         av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
yading@11:                rate.num, rate.den, src_st->avg_frame_rate.num, src_st->avg_frame_rate.den);
yading@11:         rate = src_st->avg_frame_rate;
yading@11:     }
yading@11: 
yading@11:     /* compute the frame number */
yading@11:     ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
yading@11:     if (ret < 0)
yading@11:         return ret;
yading@11: 
yading@11:     /* tmcd track based on video stream */
yading@11:     track->mode      = mov->mode;
yading@11:     track->tag       = MKTAG('t','m','c','d');
yading@11:     track->src_track = src_index;
yading@11:     track->timescale = mov->tracks[src_index].timescale;
yading@11:     if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
yading@11:         track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
yading@11: 
yading@11:     /* encode context: tmcd data stream */
yading@11:     track->enc = avcodec_alloc_context3(NULL);
yading@11:     track->enc->codec_type = AVMEDIA_TYPE_DATA;
yading@11:     track->enc->codec_tag  = track->tag;
yading@11:     track->enc->time_base  = src_st->codec->time_base;
yading@11: 
yading@11:     /* the tmcd track just contains one packet with the frame number */
yading@11:     pkt.data = av_malloc(pkt.size);
yading@11:     AV_WB32(pkt.data, tc.start);
yading@11:     ret = ff_mov_write_packet(s, &pkt);
yading@11:     av_free(pkt.data);
yading@11:     return ret;
yading@11: }
yading@11: 
yading@11: static int mov_write_header(AVFormatContext *s)
yading@11: {
yading@11:     AVIOContext *pb = s->pb;
yading@11:     MOVMuxContext *mov = s->priv_data;
yading@11:     AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
yading@11:     int i, hint_track = 0, tmcd_track = 0;
yading@11: 
yading@11:     /* Set the FRAGMENT flag if any of the fragmentation methods are
yading@11:      * enabled. */
yading@11:     if (mov->max_fragment_duration || mov->max_fragment_size ||
yading@11:         mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
yading@11:                       FF_MOV_FLAG_FRAG_KEYFRAME |
yading@11:                       FF_MOV_FLAG_FRAG_CUSTOM))
yading@11:         mov->flags |= FF_MOV_FLAG_FRAGMENT;
yading@11: 
yading@11:     /* faststart: moov at the beginning of the file, if supported */
yading@11:     if (mov->flags & FF_MOV_FLAG_FASTSTART) {
yading@11:         if (mov->flags & FF_MOV_FLAG_FRAGMENT)
yading@11:             mov->flags &= ~FF_MOV_FLAG_FASTSTART;
yading@11:         else
yading@11:             mov->reserved_moov_size = -1;
yading@11:     }
yading@11: 
yading@11:     if (!supports_edts(mov) && s->avoid_negative_ts < 0) {
yading@11:         s->avoid_negative_ts = 1;
yading@11:     }
yading@11: 
yading@11:     /* Non-seekable output is ok if using fragmentation. If ism_lookahead
yading@11:      * is enabled, we don't support non-seekable output at all. */
yading@11:     if (!s->pb->seekable &&
yading@11:         ((!(mov->flags & FF_MOV_FLAG_FRAGMENT) &&
yading@11:           !(s->oformat && !strcmp(s->oformat->name, "ismv")))
yading@11:          || mov->ism_lookahead)) {
yading@11:         av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
yading@11:         return -1;
yading@11:     }
yading@11: 
yading@11:     /* Default mode == MP4 */
yading@11:     mov->mode = MODE_MP4;
yading@11: 
yading@11:     if (s->oformat != NULL) {
yading@11:         if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
yading@11:         else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
yading@11:         else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
yading@11:         else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
yading@11:         else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
yading@11:         else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
yading@11:         else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
yading@11: 
yading@11:         mov_write_ftyp_tag(pb,s);
yading@11:         if (mov->mode == MODE_PSP) {
yading@11:             if (s->nb_streams != 2) {
yading@11:                 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
yading@11:                 return -1;
yading@11:             }
yading@11:             mov_write_uuidprof_tag(pb,s);
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     mov->nb_streams = s->nb_streams;
yading@11:     if (mov->mode & (MODE_MOV|MODE_IPOD) && s->nb_chapters)
yading@11:         mov->chapter_track = mov->nb_streams++;
yading@11: 
yading@11:     if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
yading@11:         /* Add hint tracks for each audio and video stream */
yading@11:         hint_track = mov->nb_streams;
yading@11:         for (i = 0; i < s->nb_streams; i++) {
yading@11:             AVStream *st = s->streams[i];
yading@11:             if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
yading@11:                 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
yading@11:                 mov->nb_streams++;
yading@11:             }
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     if (mov->mode == MODE_MOV) {
yading@11:         tmcd_track = mov->nb_streams;
yading@11: 
yading@11:         /* +1 tmcd track for each video stream with a timecode */
yading@11:         for (i = 0; i < s->nb_streams; i++) {
yading@11:             AVStream *st = s->streams[i];
yading@11:             if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
yading@11:                 (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
yading@11:                 mov->nb_meta_tmcd++;
yading@11:         }
yading@11: 
yading@11:         /* check if there is already a tmcd track to remux */
yading@11:         if (mov->nb_meta_tmcd) {
yading@11:             for (i = 0; i < s->nb_streams; i++) {
yading@11:                 AVStream *st = s->streams[i];
yading@11:                 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
yading@11:                     av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
yading@11:                            "so timecode metadata are now ignored\n");
yading@11:                     mov->nb_meta_tmcd = 0;
yading@11:                 }
yading@11:             }
yading@11:         }
yading@11: 
yading@11:         mov->nb_streams += mov->nb_meta_tmcd;
yading@11:     }
yading@11: 
yading@11:     mov->tracks = av_mallocz(mov->nb_streams*sizeof(*mov->tracks));
yading@11:     if (!mov->tracks)
yading@11:         return AVERROR(ENOMEM);
yading@11: 
yading@11:     for(i=0; i<s->nb_streams; i++){
yading@11:         AVStream *st= s->streams[i];
yading@11:         MOVTrack *track= &mov->tracks[i];
yading@11:         AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
yading@11: 
yading@11:         track->enc = st->codec;
yading@11:         track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
yading@11:         if (track->language < 0)
yading@11:             track->language = 0;
yading@11:         track->mode = mov->mode;
yading@11:         track->tag = mov_find_codec_tag(s, track);
yading@11:         if (!track->tag) {
yading@11:             av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
yading@11:                    "codec not currently supported in container\n", i);
yading@11:             goto error;
yading@11:         }
yading@11:         /* If hinting of this track is enabled by a later hint track,
yading@11:          * this is updated. */
yading@11:         track->hint_track = -1;
yading@11:         track->start_dts = AV_NOPTS_VALUE;
yading@11:         if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
yading@11:             if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
yading@11:                 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
yading@11:                 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
yading@11:                 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
yading@11:                     av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
yading@11:                     goto error;
yading@11:                 }
yading@11:                 track->height = track->tag>>24 == 'n' ? 486 : 576;
yading@11:             }
yading@11:             track->timescale = st->codec->time_base.den;
yading@11:             while(track->timescale < 10000)
yading@11:                 track->timescale *= 2;
yading@11:             if (track->mode == MODE_MOV && track->timescale > 100000)
yading@11:                 av_log(s, AV_LOG_WARNING,
yading@11:                        "WARNING codec timebase is very high. If duration is too long,\n"
yading@11:                        "file may not be playable by quicktime. Specify a shorter timebase\n"
yading@11:                        "or choose different container.\n");
yading@11:         }else if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO){
yading@11:             track->timescale = st->codec->sample_rate;
yading@11:             if(!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
yading@11:                 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
yading@11:                 track->audio_vbr = 1;
yading@11:             }else if(st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
yading@11:                      st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
yading@11:                      st->codec->codec_id == AV_CODEC_ID_ILBC){
yading@11:                 if (!st->codec->block_align) {
yading@11:                     av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
yading@11:                     goto error;
yading@11:                 }
yading@11:                 track->sample_size = st->codec->block_align;
yading@11:             }else if(st->codec->frame_size > 1){ /* assume compressed audio */
yading@11:                 track->audio_vbr = 1;
yading@11:             }else{
yading@11:                 track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
yading@11:             }
yading@11:             if (track->mode != MODE_MOV &&
yading@11:                 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
yading@11:                 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
yading@11:                        i, track->enc->sample_rate);
yading@11:                 goto error;
yading@11:             }
yading@11:         }else if(st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE){
yading@11:             track->timescale = st->codec->time_base.den;
yading@11:         }else{
yading@11:             track->timescale = MOV_TIMESCALE;
yading@11:         }
yading@11:         if (!track->height)
yading@11:             track->height = st->codec->height;
yading@11:         /* The ism specific timescale isn't mandatory, but is assumed by
yading@11:          * some tools, such as mp4split. */
yading@11:         if (mov->mode == MODE_ISM)
yading@11:             track->timescale = 10000000;
yading@11: 
yading@11:         avpriv_set_pts_info(st, 64, 1, track->timescale);
yading@11: 
yading@11:         /* copy extradata if it exists */
yading@11:         if (st->codec->extradata_size) {
yading@11:             track->vos_len  = st->codec->extradata_size;
yading@11:             track->vos_data = av_malloc(track->vos_len);
yading@11:             memcpy(track->vos_data, st->codec->extradata, track->vos_len);
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     if (mov->mode == MODE_ISM) {
yading@11:         /* If no fragmentation options have been set, set a default. */
yading@11:         if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
yading@11:                             FF_MOV_FLAG_FRAG_CUSTOM)) &&
yading@11:             !mov->max_fragment_duration && !mov->max_fragment_size)
yading@11:             mov->max_fragment_duration = 5000000;
yading@11:         mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
yading@11:                       FF_MOV_FLAG_FRAGMENT;
yading@11:     }
yading@11: 
yading@11:     if(mov->reserved_moov_size){
yading@11:         mov->reserved_moov_pos= avio_tell(pb);
yading@11:         if (mov->reserved_moov_size > 0)
yading@11:             avio_skip(pb, mov->reserved_moov_size);
yading@11:     }
yading@11: 
yading@11:     if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
yading@11:         mov_write_mdat_tag(pb, mov);
yading@11: 
yading@11:     if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
yading@11:         mov->time = ff_iso8601_to_unix_time(t->value);
yading@11:     if (mov->time)
yading@11:         mov->time += 0x7C25B080; // 1970 based -> 1904 based
yading@11: 
yading@11:     if (mov->chapter_track)
yading@11:         mov_create_chapter_track(s, mov->chapter_track);
yading@11: 
yading@11:     if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
yading@11:         /* Initialize the hint tracks for each audio and video stream */
yading@11:         for (i = 0; i < s->nb_streams; i++) {
yading@11:             AVStream *st = s->streams[i];
yading@11:             if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
yading@11:                 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
yading@11:                 ff_mov_init_hinting(s, hint_track, i);
yading@11:                 hint_track++;
yading@11:             }
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     if (mov->nb_meta_tmcd) {
yading@11:         /* Initialize the tmcd tracks */
yading@11:         for (i = 0; i < s->nb_streams; i++) {
yading@11:             AVStream *st = s->streams[i];
yading@11:             t = global_tcr;
yading@11: 
yading@11:             if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
yading@11:                 if (!t)
yading@11:                     t = av_dict_get(st->metadata, "timecode", NULL, 0);
yading@11:                 if (!t)
yading@11:                     continue;
yading@11:                 if (mov_create_timecode_track(s, tmcd_track, i, t->value) < 0)
yading@11:                     goto error;
yading@11:                 tmcd_track++;
yading@11:             }
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     avio_flush(pb);
yading@11: 
yading@11:     if (mov->flags & FF_MOV_FLAG_ISML)
yading@11:         mov_write_isml_manifest(pb, mov);
yading@11: 
yading@11:     if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
yading@11:         mov_write_moov_tag(pb, mov, s);
yading@11:         mov->fragments++;
yading@11:     }
yading@11: 
yading@11:     return 0;
yading@11:  error:
yading@11:     av_freep(&mov->tracks);
yading@11:     return -1;
yading@11: }
yading@11: 
yading@11: /**
yading@11:  * This function gets the moov size if moved to the top of the file: the chunk
yading@11:  * offset table can switch between stco (32-bit entries) to co64 (64-bit
yading@11:  * entries) when the moov is moved to the top, so the size of the moov would
yading@11:  * change. It also updates the chunk offset tables.
yading@11:  */
yading@11: static int compute_moov_size(AVFormatContext *s)
yading@11: {
yading@11:     int i, moov_size, moov_size2;
yading@11:     MOVMuxContext *mov = s->priv_data;
yading@11: 
yading@11:     moov_size = get_moov_size(s);
yading@11:     if (moov_size < 0)
yading@11:         return moov_size;
yading@11: 
yading@11:     for (i = 0; i < mov->nb_streams; i++)
yading@11:         mov->tracks[i].data_offset += moov_size;
yading@11: 
yading@11:     moov_size2 = get_moov_size(s);
yading@11:     if (moov_size2 < 0)
yading@11:         return moov_size2;
yading@11: 
yading@11:     /* if the size changed, we just switched from stco to co64 and needs to
yading@11:      * update the offsets */
yading@11:     if (moov_size2 != moov_size)
yading@11:         for (i = 0; i < mov->nb_streams; i++)
yading@11:             mov->tracks[i].data_offset += moov_size2 - moov_size;
yading@11: 
yading@11:     return moov_size2;
yading@11: }
yading@11: 
yading@11: static int shift_data(AVFormatContext *s)
yading@11: {
yading@11:     int ret = 0, moov_size;
yading@11:     MOVMuxContext *mov = s->priv_data;
yading@11:     int64_t pos, pos_end = avio_tell(s->pb);
yading@11:     uint8_t *buf, *read_buf[2];
yading@11:     int read_buf_id = 0;
yading@11:     int read_size[2];
yading@11:     AVIOContext *read_pb;
yading@11: 
yading@11:     moov_size = compute_moov_size(s);
yading@11:     if (moov_size < 0)
yading@11:         return moov_size;
yading@11: 
yading@11:     buf = av_malloc(moov_size * 2);
yading@11:     if (!buf)
yading@11:         return AVERROR(ENOMEM);
yading@11:     read_buf[0] = buf;
yading@11:     read_buf[1] = buf + moov_size;
yading@11: 
yading@11:     /* Shift the data: the AVIO context of the output can only be used for
yading@11:      * writing, so we re-open the same output, but for reading. It also avoids
yading@11:      * a read/seek/write/seek back and forth. */
yading@11:     avio_flush(s->pb);
yading@11:     ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
yading@11:     if (ret < 0) {
yading@11:         av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
yading@11:                "the second pass (faststart)\n", s->filename);
yading@11:         goto end;
yading@11:     }
yading@11: 
yading@11:     /* mark the end of the shift to up to the last data we wrote, and get ready
yading@11:      * for writing */
yading@11:     pos_end = avio_tell(s->pb);
yading@11:     avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
yading@11: 
yading@11:     /* start reading at where the new moov will be placed */
yading@11:     avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
yading@11:     pos = avio_tell(read_pb);
yading@11: 
yading@11: #define READ_BLOCK do {                                                             \
yading@11:     read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size);  \
yading@11:     read_buf_id ^= 1;                                                               \
yading@11: } while (0)
yading@11: 
yading@11:     /* shift data by chunk of at most moov_size */
yading@11:     READ_BLOCK;
yading@11:     do {
yading@11:         int n;
yading@11:         READ_BLOCK;
yading@11:         n = read_size[read_buf_id];
yading@11:         if (n <= 0)
yading@11:             break;
yading@11:         avio_write(s->pb, read_buf[read_buf_id], n);
yading@11:         pos += n;
yading@11:     } while (pos < pos_end);
yading@11:     avio_close(read_pb);
yading@11: 
yading@11: end:
yading@11:     av_free(buf);
yading@11:     return ret;
yading@11: }
yading@11: 
yading@11: static int mov_write_trailer(AVFormatContext *s)
yading@11: {
yading@11:     MOVMuxContext *mov = s->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11:     int64_t moov_pos;
yading@11:     int res = 0;
yading@11:     int i;
yading@11: 
yading@11:     /*
yading@11:      * Before actually writing the trailer, make sure that there are no
yading@11:      * dangling subtitles, that need a terminating sample.
yading@11:      */
yading@11:     for (i = 0; i < mov->nb_streams; i++) {
yading@11:         MOVTrack *trk = &mov->tracks[i];
yading@11:         if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
yading@11:             !trk->last_sample_is_subtitle_end) {
yading@11:             mov_write_subtitle_end_packet(s, i, trk->track_duration);
yading@11:             trk->last_sample_is_subtitle_end = 1;
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     moov_pos = avio_tell(pb);
yading@11: 
yading@11:     if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
yading@11:         /* Write size of mdat tag */
yading@11:         if (mov->mdat_size + 8 <= UINT32_MAX) {
yading@11:             avio_seek(pb, mov->mdat_pos, SEEK_SET);
yading@11:             avio_wb32(pb, mov->mdat_size + 8);
yading@11:         } else {
yading@11:             /* overwrite 'wide' placeholder atom */
yading@11:             avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
yading@11:             /* special value: real atom size will be 64 bit value after
yading@11:              * tag field */
yading@11:             avio_wb32(pb, 1);
yading@11:             ffio_wfourcc(pb, "mdat");
yading@11:             avio_wb64(pb, mov->mdat_size + 16);
yading@11:         }
yading@11:         avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_moov_pos : moov_pos, SEEK_SET);
yading@11: 
yading@11:         if (mov->reserved_moov_size == -1) {
yading@11:             av_log(s, AV_LOG_INFO, "Starting second pass: moving header on top of the file\n");
yading@11:             res = shift_data(s);
yading@11:             if (res == 0) {
yading@11:                 avio_seek(s->pb, mov->reserved_moov_pos, SEEK_SET);
yading@11:                 mov_write_moov_tag(pb, mov, s);
yading@11:             }
yading@11:         } else if (mov->reserved_moov_size > 0) {
yading@11:             int64_t size;
yading@11:             mov_write_moov_tag(pb, mov, s);
yading@11:             size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_moov_pos);
yading@11:             if(size < 8){
yading@11:                 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
yading@11:                 return -1;
yading@11:             }
yading@11:             avio_wb32(pb, size);
yading@11:             ffio_wfourcc(pb, "free");
yading@11:             for(i=0; i<size; i++)
yading@11:                 avio_w8(pb, 0);
yading@11:             avio_seek(pb, moov_pos, SEEK_SET);
yading@11:         } else {
yading@11:             mov_write_moov_tag(pb, mov, s);
yading@11:         }
yading@11:     } else {
yading@11:         mov_flush_fragment(s);
yading@11:         mov_write_mfra_tag(pb, mov);
yading@11:     }
yading@11: 
yading@11:     if (mov->chapter_track)
yading@11:         av_freep(&mov->tracks[mov->chapter_track].enc);
yading@11: 
yading@11:     for (i=0; i<mov->nb_streams; i++) {
yading@11:         if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
yading@11:             ff_mov_close_hinting(&mov->tracks[i]);
yading@11:         else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
yading@11:             av_freep(&mov->tracks[i].enc);
yading@11:         if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
yading@11:             mov->tracks[i].vc1_info.struct_offset && s->pb->seekable) {
yading@11:             int64_t off = avio_tell(pb);
yading@11:             uint8_t buf[7];
yading@11:             if (mov_write_dvc1_structs(&mov->tracks[i], buf) >= 0) {
yading@11:                 avio_seek(pb, mov->tracks[i].vc1_info.struct_offset, SEEK_SET);
yading@11:                 avio_write(pb, buf, 7);
yading@11:                 avio_seek(pb, off, SEEK_SET);
yading@11:             }
yading@11:         }
yading@11:         av_freep(&mov->tracks[i].cluster);
yading@11:         av_freep(&mov->tracks[i].frag_info);
yading@11: 
yading@11:         if (mov->tracks[i].vos_len)
yading@11:             av_free(mov->tracks[i].vos_data);
yading@11: 
yading@11:     }
yading@11: 
yading@11:     av_freep(&mov->tracks);
yading@11: 
yading@11:     return res;
yading@11: }
yading@11: 
yading@11: #if CONFIG_MOV_MUXER
yading@11: MOV_CLASS(mov)
yading@11: AVOutputFormat ff_mov_muxer = {
yading@11:     .name              = "mov",
yading@11:     .long_name         = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
yading@11:     .extensions        = "mov",
yading@11:     .priv_data_size    = sizeof(MOVMuxContext),
yading@11:     .audio_codec       = AV_CODEC_ID_AAC,
yading@11:     .video_codec       = CONFIG_LIBX264_ENCODER ?
yading@11:                          AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
yading@11:     .write_header      = mov_write_header,
yading@11:     .write_packet      = mov_write_packet,
yading@11:     .write_trailer     = mov_write_trailer,
yading@11:     .flags             = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
yading@11:     .codec_tag         = (const AVCodecTag* const []){
yading@11:         ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
yading@11:     },
yading@11:     .priv_class        = &mov_muxer_class,
yading@11: };
yading@11: #endif
yading@11: #if CONFIG_TGP_MUXER
yading@11: MOV_CLASS(tgp)
yading@11: AVOutputFormat ff_tgp_muxer = {
yading@11:     .name              = "3gp",
yading@11:     .long_name         = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
yading@11:     .extensions        = "3gp",
yading@11:     .priv_data_size    = sizeof(MOVMuxContext),
yading@11:     .audio_codec       = AV_CODEC_ID_AMR_NB,
yading@11:     .video_codec       = AV_CODEC_ID_H263,
yading@11:     .write_header      = mov_write_header,
yading@11:     .write_packet      = mov_write_packet,
yading@11:     .write_trailer     = mov_write_trailer,
yading@11:     .flags             = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
yading@11:     .codec_tag         = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
yading@11:     .priv_class        = &tgp_muxer_class,
yading@11: };
yading@11: #endif
yading@11: #if CONFIG_MP4_MUXER
yading@11: MOV_CLASS(mp4)
yading@11: AVOutputFormat ff_mp4_muxer = {
yading@11:     .name              = "mp4",
yading@11:     .long_name         = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
yading@11:     .mime_type         = "application/mp4",
yading@11:     .extensions        = "mp4",
yading@11:     .priv_data_size    = sizeof(MOVMuxContext),
yading@11:     .audio_codec       = AV_CODEC_ID_AAC,
yading@11:     .video_codec       = CONFIG_LIBX264_ENCODER ?
yading@11:                          AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
yading@11:     .write_header      = mov_write_header,
yading@11:     .write_packet      = mov_write_packet,
yading@11:     .write_trailer     = mov_write_trailer,
yading@11:     .flags             = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
yading@11:     .codec_tag         = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
yading@11:     .priv_class        = &mp4_muxer_class,
yading@11: };
yading@11: #endif
yading@11: #if CONFIG_PSP_MUXER
yading@11: MOV_CLASS(psp)
yading@11: AVOutputFormat ff_psp_muxer = {
yading@11:     .name              = "psp",
yading@11:     .long_name         = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
yading@11:     .extensions        = "mp4,psp",
yading@11:     .priv_data_size    = sizeof(MOVMuxContext),
yading@11:     .audio_codec       = AV_CODEC_ID_AAC,
yading@11:     .video_codec       = CONFIG_LIBX264_ENCODER ?
yading@11:                          AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
yading@11:     .write_header      = mov_write_header,
yading@11:     .write_packet      = mov_write_packet,
yading@11:     .write_trailer     = mov_write_trailer,
yading@11:     .flags             = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
yading@11:     .codec_tag         = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
yading@11:     .priv_class        = &psp_muxer_class,
yading@11: };
yading@11: #endif
yading@11: #if CONFIG_TG2_MUXER
yading@11: MOV_CLASS(tg2)
yading@11: AVOutputFormat ff_tg2_muxer = {
yading@11:     .name              = "3g2",
yading@11:     .long_name         = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
yading@11:     .extensions        = "3g2",
yading@11:     .priv_data_size    = sizeof(MOVMuxContext),
yading@11:     .audio_codec       = AV_CODEC_ID_AMR_NB,
yading@11:     .video_codec       = AV_CODEC_ID_H263,
yading@11:     .write_header      = mov_write_header,
yading@11:     .write_packet      = mov_write_packet,
yading@11:     .write_trailer     = mov_write_trailer,
yading@11:     .flags             = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
yading@11:     .codec_tag         = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
yading@11:     .priv_class        = &tg2_muxer_class,
yading@11: };
yading@11: #endif
yading@11: #if CONFIG_IPOD_MUXER
yading@11: MOV_CLASS(ipod)
yading@11: AVOutputFormat ff_ipod_muxer = {
yading@11:     .name              = "ipod",
yading@11:     .long_name         = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
yading@11:     .mime_type         = "application/mp4",
yading@11:     .extensions        = "m4v,m4a",
yading@11:     .priv_data_size    = sizeof(MOVMuxContext),
yading@11:     .audio_codec       = AV_CODEC_ID_AAC,
yading@11:     .video_codec       = AV_CODEC_ID_H264,
yading@11:     .write_header      = mov_write_header,
yading@11:     .write_packet      = mov_write_packet,
yading@11:     .write_trailer     = mov_write_trailer,
yading@11:     .flags             = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
yading@11:     .codec_tag         = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
yading@11:     .priv_class        = &ipod_muxer_class,
yading@11: };
yading@11: #endif
yading@11: #if CONFIG_ISMV_MUXER
yading@11: MOV_CLASS(ismv)
yading@11: AVOutputFormat ff_ismv_muxer = {
yading@11:     .name              = "ismv",
yading@11:     .long_name         = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
yading@11:     .mime_type         = "application/mp4",
yading@11:     .extensions        = "ismv,isma",
yading@11:     .priv_data_size    = sizeof(MOVMuxContext),
yading@11:     .audio_codec       = AV_CODEC_ID_AAC,
yading@11:     .video_codec       = AV_CODEC_ID_H264,
yading@11:     .write_header      = mov_write_header,
yading@11:     .write_packet      = mov_write_packet,
yading@11:     .write_trailer     = mov_write_trailer,
yading@11:     .flags             = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
yading@11:     .codec_tag         = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
yading@11:     .priv_class        = &ismv_muxer_class,
yading@11: };
yading@11: #endif
yading@11: #if CONFIG_F4V_MUXER
yading@11: MOV_CLASS(f4v)
yading@11: AVOutputFormat ff_f4v_muxer = {
yading@11:     .name              = "f4v",
yading@11:     .long_name         = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
yading@11:     .mime_type         = "application/f4v",
yading@11:     .extensions        = "f4v",
yading@11:     .priv_data_size    = sizeof(MOVMuxContext),
yading@11:     .audio_codec       = AV_CODEC_ID_AAC,
yading@11:     .video_codec       = AV_CODEC_ID_H264,
yading@11:     .write_header      = mov_write_header,
yading@11:     .write_packet      = mov_write_packet,
yading@11:     .write_trailer     = mov_write_trailer,
yading@11:     .flags             = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
yading@11:     .codec_tag         = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
yading@11:     .priv_class        = &f4v_muxer_class,
yading@11: };
yading@11: #endif