yading@11: /*
yading@11:  * MXF muxer
yading@11:  * Copyright (c) 2008 GUCAS, Zhentan Feng <spyfeng at gmail dot com>
yading@11:  * Copyright (c) 2008 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: /*
yading@11:  * References
yading@11:  * SMPTE 336M KLV Data Encoding Protocol Using Key-Length-Value
yading@11:  * SMPTE 377M MXF File Format Specifications
yading@11:  * SMPTE 379M MXF Generic Container
yading@11:  * SMPTE 381M Mapping MPEG Streams into the MXF Generic Container
yading@11:  * SMPTE RP210: SMPTE Metadata Dictionary
yading@11:  * SMPTE RP224: Registry of SMPTE Universal Labels
yading@11:  */
yading@11: 
yading@11: //#define DEBUG
yading@11: 
yading@11: #include <math.h>
yading@11: #include <time.h>
yading@11: 
yading@11: #include "libavutil/opt.h"
yading@11: #include "libavutil/random_seed.h"
yading@11: #include "libavutil/timecode.h"
yading@11: #include "libavutil/avassert.h"
yading@11: #include "libavcodec/bytestream.h"
yading@11: #include "libavcodec/dnxhddata.h"
yading@11: #include "audiointerleave.h"
yading@11: #include "avformat.h"
yading@11: #include "internal.h"
yading@11: #include "mxf.h"
yading@11: #include "config.h"
yading@11: 
yading@11: extern AVOutputFormat ff_mxf_d10_muxer;
yading@11: 
yading@11: #define EDIT_UNITS_PER_BODY 250
yading@11: #define KAG_SIZE 512
yading@11: 
yading@11: typedef struct {
yading@11:     int local_tag;
yading@11:     UID uid;
yading@11: } MXFLocalTagPair;
yading@11: 
yading@11: typedef struct {
yading@11:     uint8_t flags;
yading@11:     uint64_t offset;
yading@11:     unsigned slice_offset; ///< offset of audio slice
yading@11:     uint16_t temporal_ref;
yading@11: } MXFIndexEntry;
yading@11: 
yading@11: typedef struct {
yading@11:     AudioInterleaveContext aic;
yading@11:     UID track_essence_element_key;
yading@11:     int index;               ///< index in mxf_essence_container_uls table
yading@11:     const UID *codec_ul;
yading@11:     int order;               ///< interleaving order if dts are equal
yading@11:     int interlaced;          ///< whether picture is interlaced
yading@11:     int field_dominance;     ///< tff=1, bff=2
yading@11:     int component_depth;
yading@11:     int temporal_reordering;
yading@11:     AVRational aspect_ratio; ///< display aspect ratio
yading@11:     int closed_gop;          ///< gop is closed, used in mpeg-2 frame parsing
yading@11: } MXFStreamContext;
yading@11: 
yading@11: typedef struct {
yading@11:     UID container_ul;
yading@11:     UID element_ul;
yading@11:     UID codec_ul;
yading@11:     void (*write_desc)(AVFormatContext *, AVStream *);
yading@11: } MXFContainerEssenceEntry;
yading@11: 
yading@11: static const struct {
yading@11:     enum AVCodecID id;
yading@11:     int index;
yading@11: } mxf_essence_mappings[] = {
yading@11:     { AV_CODEC_ID_MPEG2VIDEO, 0 },
yading@11:     { AV_CODEC_ID_PCM_S24LE,  1 },
yading@11:     { AV_CODEC_ID_PCM_S16LE,  1 },
yading@11:     { AV_CODEC_ID_DVVIDEO,   15 },
yading@11:     { AV_CODEC_ID_DNXHD,     24 },
yading@11:     { AV_CODEC_ID_NONE }
yading@11: };
yading@11: 
yading@11: static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);
yading@11: static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st);
yading@11: static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st);
yading@11: static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st);
yading@11: static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st);
yading@11: 
yading@11: static const MXFContainerEssenceEntry mxf_essence_container_uls[] = {
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
yading@11:       mxf_write_mpegvideo_desc },
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
yading@11:       mxf_write_aes3_desc },
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
yading@11:       mxf_write_wav_desc },
yading@11:     // D-10 625/50 PAL 50mb/s
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 },
yading@11:       mxf_write_cdci_desc },
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
yading@11:       mxf_write_generic_sound_desc },
yading@11:     // D-10 525/60 NTSC 50mb/s
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 },
yading@11:       mxf_write_cdci_desc },
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
yading@11:       mxf_write_generic_sound_desc },
yading@11:     // D-10 625/50 PAL 40mb/s
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 },
yading@11:       mxf_write_cdci_desc },
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
yading@11:       mxf_write_generic_sound_desc },
yading@11:     // D-10 525/60 NTSC 40mb/s
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 },
yading@11:       mxf_write_cdci_desc },
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
yading@11:       mxf_write_generic_sound_desc },
yading@11:     // D-10 625/50 PAL 30mb/s
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 },
yading@11:       mxf_write_cdci_desc },
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
yading@11:       mxf_write_generic_sound_desc },
yading@11:     // D-10 525/60 NTSC 30mb/s
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 },
yading@11:       mxf_write_cdci_desc },
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
yading@11:       mxf_write_generic_sound_desc },
yading@11:     // DV Unknown
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x7F,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x00,0x00,0x00 },
yading@11:       mxf_write_cdci_desc },
yading@11:     // DV25 525/60
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x40,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x01,0x00 },
yading@11:       mxf_write_cdci_desc },
yading@11:     // DV25 625/50
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x41,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 },
yading@11:       mxf_write_cdci_desc },
yading@11:     // DV50 525/60
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x50,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x03,0x00 },
yading@11:       mxf_write_cdci_desc },
yading@11:     // DV50 625/50
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x51,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 },
yading@11:       mxf_write_cdci_desc },
yading@11:     // DV100 1080/60
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x60,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x05,0x00 },
yading@11:       mxf_write_cdci_desc },
yading@11:     // DV100 1080/50
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x61,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x06,0x00 },
yading@11:       mxf_write_cdci_desc },
yading@11:     // DV100 720/60
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x62,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x07,0x00 },
yading@11:       mxf_write_cdci_desc },
yading@11:     // DV100 720/50
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x63,0x01 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x08,0x00 },
yading@11:       mxf_write_cdci_desc },
yading@11:     // DNxHD 1080p 10bit high
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x01,0x00,0x00 },
yading@11:       mxf_write_cdci_desc },
yading@11:     // DNxHD 1080p 8bit medium
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x03,0x00,0x00 },
yading@11:       mxf_write_cdci_desc },
yading@11:     // DNxHD 1080p 8bit high
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x04,0x00,0x00 },
yading@11:       mxf_write_cdci_desc },
yading@11:     // DNxHD 1080i 10bit high
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x07,0x00,0x00 },
yading@11:       mxf_write_cdci_desc },
yading@11:     // DNxHD 1080i 8bit medium
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x08,0x00,0x00 },
yading@11:       mxf_write_cdci_desc },
yading@11:     // DNxHD 1080i 8bit high
yading@11:     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
yading@11:       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x09,0x00,0x00 },
yading@11:       mxf_write_cdci_desc },
yading@11:     // DNxHD 720p 10bit
yading@11:     { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
yading@11:       { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
yading@11:       { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x10,0x00,0x00 },
yading@11:       mxf_write_cdci_desc },
yading@11:     // DNxHD 720p 8bit high
yading@11:     { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
yading@11:       { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
yading@11:       { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x11,0x00,0x00 },
yading@11:       mxf_write_cdci_desc },
yading@11:     // DNxHD 720p 8bit medium
yading@11:     { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
yading@11:       { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
yading@11:       { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x12,0x00,0x00 },
yading@11:       mxf_write_cdci_desc },
yading@11:     // DNxHD 720p 8bit low
yading@11:     { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
yading@11:       { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
yading@11:       { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x13,0x00,0x00 },
yading@11:       mxf_write_cdci_desc },
yading@11:     { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
yading@11:       { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
yading@11:       { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
yading@11:       NULL },
yading@11: };
yading@11: 
yading@11: typedef struct MXFContext {
yading@11:     AVClass *av_class;
yading@11:     int64_t footer_partition_offset;
yading@11:     int essence_container_count;
yading@11:     AVRational time_base;
yading@11:     int header_written;
yading@11:     MXFIndexEntry *index_entries;
yading@11:     unsigned edit_units_count;
yading@11:     uint64_t timestamp;   ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8)
yading@11:     uint8_t slice_count;  ///< index slice count minus 1 (1 if no audio, 0 otherwise)
yading@11:     int last_indexed_edit_unit;
yading@11:     uint64_t *body_partition_offset;
yading@11:     unsigned body_partitions_count;
yading@11:     int last_key_index;  ///< index of last key frame
yading@11:     uint64_t duration;
yading@11:     AVTimecode tc;       ///< timecode context
yading@11:     AVStream *timecode_track;
yading@11:     int timecode_base;       ///< rounded time code base (25 or 30)
yading@11:     int edit_unit_byte_count; ///< fixed edit unit byte count
yading@11:     uint64_t body_offset;
yading@11:     uint32_t instance_number;
yading@11:     uint8_t umid[16];        ///< unique material identifier
yading@11: } MXFContext;
yading@11: 
yading@11: static const uint8_t uuid_base[]            = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
yading@11: static const uint8_t umid_ul[]              = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13 };
yading@11: 
yading@11: /**
yading@11:  * complete key for operation pattern, partitions, and primer pack
yading@11:  */
yading@11: static const uint8_t op1a_ul[]                     = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 };
yading@11: static const uint8_t footer_partition_key[]        = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
yading@11: static const uint8_t primer_pack_key[]             = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
yading@11: static const uint8_t index_table_segment_key[]     = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 };
yading@11: static const uint8_t random_index_pack_key[]       = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x11,0x01,0x00 };
yading@11: static const uint8_t header_open_partition_key[]   = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x02,0x01,0x00 }; // OpenIncomplete
yading@11: static const uint8_t header_closed_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x02,0x04,0x00 }; // ClosedComplete
yading@11: static const uint8_t klv_fill_key[]                = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 };
yading@11: static const uint8_t body_partition_key[]          = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete
yading@11: 
yading@11: /**
yading@11:  * partial key for header metadata
yading@11:  */
yading@11: static const uint8_t header_metadata_key[]  = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
yading@11: static const uint8_t multiple_desc_ul[]     = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
yading@11: 
yading@11: /**
yading@11:  * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
yading@11:  */
yading@11: static const MXFLocalTagPair mxf_local_tag_batch[] = {
yading@11:     // preface set
yading@11:     { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
yading@11:     { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
yading@11:     { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
yading@11:     { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
yading@11:     { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
yading@11:     { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
yading@11:     { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
yading@11:     { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
yading@11:     // Identification
yading@11:     { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
yading@11:     { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
yading@11:     { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
yading@11:     { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
yading@11:     { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
yading@11:     { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
yading@11:     // Content Storage
yading@11:     { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
yading@11:     { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
yading@11:     // Essence Container Data
yading@11:     { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
yading@11:     { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
yading@11:     // Package
yading@11:     { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
yading@11:     { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
yading@11:     { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
yading@11:     { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
yading@11:     { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
yading@11:     // Track
yading@11:     { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
yading@11:     { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
yading@11:     { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
yading@11:     { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
yading@11:     { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
yading@11:     // Sequence
yading@11:     { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
yading@11:     { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
yading@11:     { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
yading@11:     // Source Clip
yading@11:     { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
yading@11:     { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
yading@11:     { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
yading@11:     // Timecode Component
yading@11:     { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
yading@11:     { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
yading@11:     { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
yading@11:     // File Descriptor
yading@11:     { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
yading@11:     { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
yading@11:     { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
yading@11:     { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
yading@11:     // Generic Picture Essence Descriptor
yading@11:     { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
yading@11:     { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
yading@11:     { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
yading@11:     { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
yading@11:     { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
yading@11:     { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
yading@11:     { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
yading@11:     { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
yading@11:     { 0x3212, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x01,0x06,0x00,0x00,0x00}}, /* Field Dominance (Opt) */
yading@11:     // CDCI Picture Essence Descriptor
yading@11:     { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
yading@11:     { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
yading@11:     // Generic Sound Essence Descriptor
yading@11:     { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
yading@11:     { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
yading@11:     { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
yading@11:     { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
yading@11:     { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
yading@11:     // Index Table Segment
yading@11:     { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
yading@11:     { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
yading@11:     { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
yading@11:     { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
yading@11:     { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
yading@11:     { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
yading@11:     { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
yading@11:     { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
yading@11:     // MPEG video Descriptor
yading@11:     { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
yading@11:     { 0x8007, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0A,0x00,0x00}}, /* ProfileAndLevel */
yading@11:     // Wave Audio Essence Descriptor
yading@11:     { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
yading@11:     { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
yading@11: };
yading@11: 
yading@11: static void mxf_write_uuid(AVIOContext *pb, enum MXFMetadataSetType type, int value)
yading@11: {
yading@11:     avio_write(pb, uuid_base, 12);
yading@11:     avio_wb16(pb, type);
yading@11:     avio_wb16(pb, value);
yading@11: }
yading@11: 
yading@11: static void mxf_write_umid(AVFormatContext *s, int type)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     avio_write(s->pb, umid_ul, 13);
yading@11:     avio_wb24(s->pb, mxf->instance_number);
yading@11:     avio_write(s->pb, mxf->umid, 15);
yading@11:     avio_w8(s->pb, type);
yading@11: }
yading@11: 
yading@11: static void mxf_write_refs_count(AVIOContext *pb, int ref_count)
yading@11: {
yading@11:     avio_wb32(pb, ref_count);
yading@11:     avio_wb32(pb, 16);
yading@11: }
yading@11: 
yading@11: static int klv_ber_length(uint64_t len)
yading@11: {
yading@11:     if (len < 128)
yading@11:         return 1;
yading@11:     else
yading@11:         return (av_log2(len) >> 3) + 2;
yading@11: }
yading@11: 
yading@11: static int klv_encode_ber_length(AVIOContext *pb, uint64_t len)
yading@11: {
yading@11:     // Determine the best BER size
yading@11:     int size;
yading@11:     if (len < 128) {
yading@11:         //short form
yading@11:         avio_w8(pb, len);
yading@11:         return 1;
yading@11:     }
yading@11: 
yading@11:     size = (av_log2(len) >> 3) + 1;
yading@11: 
yading@11:     // long form
yading@11:     avio_w8(pb, 0x80 + size);
yading@11:     while(size) {
yading@11:         size--;
yading@11:         avio_w8(pb, len >> 8 * size & 0xff);
yading@11:     }
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static void klv_encode_ber4_length(AVIOContext *pb, int len)
yading@11: {
yading@11:     avio_w8(pb, 0x80 + 3);
yading@11:     avio_wb24(pb, len);
yading@11: }
yading@11: 
yading@11: /*
yading@11:  * Get essence container ul index
yading@11:  */
yading@11: static int mxf_get_essence_container_ul_index(enum AVCodecID id)
yading@11: {
yading@11:     int i;
yading@11:     for (i = 0; mxf_essence_mappings[i].id; i++)
yading@11:         if (mxf_essence_mappings[i].id == id)
yading@11:             return mxf_essence_mappings[i].index;
yading@11:     return -1;
yading@11: }
yading@11: 
yading@11: static void mxf_write_primer_pack(AVFormatContext *s)
yading@11: {
yading@11:     AVIOContext *pb = s->pb;
yading@11:     int local_tag_number, i = 0;
yading@11: 
yading@11:     local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
yading@11: 
yading@11:     avio_write(pb, primer_pack_key, 16);
yading@11:     klv_encode_ber_length(pb, local_tag_number * 18 + 8);
yading@11: 
yading@11:     avio_wb32(pb, local_tag_number); // local_tag num
yading@11:     avio_wb32(pb, 18); // item size, always 18 according to the specs
yading@11: 
yading@11:     for (i = 0; i < local_tag_number; i++) {
yading@11:         avio_wb16(pb, mxf_local_tag_batch[i].local_tag);
yading@11:         avio_write(pb, mxf_local_tag_batch[i].uid, 16);
yading@11:     }
yading@11: }
yading@11: 
yading@11: static void mxf_write_local_tag(AVIOContext *pb, int size, int tag)
yading@11: {
yading@11:     avio_wb16(pb, tag);
yading@11:     avio_wb16(pb, size);
yading@11: }
yading@11: 
yading@11: static void mxf_write_metadata_key(AVIOContext *pb, unsigned int value)
yading@11: {
yading@11:     avio_write(pb, header_metadata_key, 13);
yading@11:     avio_wb24(pb, value);
yading@11: }
yading@11: 
yading@11: static void mxf_free(AVFormatContext *s)
yading@11: {
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:         av_freep(&st->priv_data);
yading@11:     }
yading@11: }
yading@11: 
yading@11: static const MXFCodecUL *mxf_get_data_definition_ul(int type)
yading@11: {
yading@11:     const MXFCodecUL *uls = ff_mxf_data_definition_uls;
yading@11:     while (uls->uid[0]) {
yading@11:         if (type == uls->id)
yading@11:             break;
yading@11:         uls++;
yading@11:     }
yading@11:     return uls;
yading@11: }
yading@11: 
yading@11: //one EC -> one descriptor. N ECs -> MultipleDescriptor + N descriptors
yading@11: #define DESCRIPTOR_COUNT(essence_container_count) \
yading@11:     (essence_container_count > 1 ? essence_container_count + 1 : essence_container_count)
yading@11: 
yading@11: static void mxf_write_essence_container_refs(AVFormatContext *s)
yading@11: {
yading@11:     MXFContext *c = s->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11:     int i;
yading@11: 
yading@11:     mxf_write_refs_count(pb, DESCRIPTOR_COUNT(c->essence_container_count));
yading@11:     av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
yading@11:     for (i = 0; i < c->essence_container_count; i++) {
yading@11:         MXFStreamContext *sc = s->streams[i]->priv_data;
yading@11:         avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
yading@11:     }
yading@11: 
yading@11:     if (c->essence_container_count > 1)
yading@11:         avio_write(pb, multiple_desc_ul, 16);
yading@11: }
yading@11: 
yading@11: static void mxf_write_preface(AVFormatContext *s)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11: 
yading@11:     mxf_write_metadata_key(pb, 0x012f00);
yading@11:     PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
yading@11:     klv_encode_ber_length(pb, 130 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
yading@11: 
yading@11:     // write preface set uid
yading@11:     mxf_write_local_tag(pb, 16, 0x3C0A);
yading@11:     mxf_write_uuid(pb, Preface, 0);
yading@11:     PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
yading@11: 
yading@11:     // last modified date
yading@11:     mxf_write_local_tag(pb, 8, 0x3B02);
yading@11:     avio_wb64(pb, mxf->timestamp);
yading@11: 
yading@11:     // write version
yading@11:     mxf_write_local_tag(pb, 2, 0x3B05);
yading@11:     avio_wb16(pb, 258); // v1.2
yading@11: 
yading@11:     // write identification_refs
yading@11:     mxf_write_local_tag(pb, 16 + 8, 0x3B06);
yading@11:     mxf_write_refs_count(pb, 1);
yading@11:     mxf_write_uuid(pb, Identification, 0);
yading@11: 
yading@11:     // write content_storage_refs
yading@11:     mxf_write_local_tag(pb, 16, 0x3B03);
yading@11:     mxf_write_uuid(pb, ContentStorage, 0);
yading@11: 
yading@11:     // operational pattern
yading@11:     mxf_write_local_tag(pb, 16, 0x3B09);
yading@11:     avio_write(pb, op1a_ul, 16);
yading@11: 
yading@11:     // write essence_container_refs
yading@11:     mxf_write_local_tag(pb, 8 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count), 0x3B0A);
yading@11:     mxf_write_essence_container_refs(s);
yading@11: 
yading@11:     // write dm_scheme_refs
yading@11:     mxf_write_local_tag(pb, 8, 0x3B0B);
yading@11:     avio_wb64(pb, 0);
yading@11: }
yading@11: 
yading@11: /*
yading@11:  * Write a local tag containing an ascii string as utf-16
yading@11:  */
yading@11: static void mxf_write_local_tag_utf16(AVIOContext *pb, int tag, const char *value)
yading@11: {
yading@11:     int i, size = strlen(value);
yading@11:     mxf_write_local_tag(pb, size*2, tag);
yading@11:     for (i = 0; i < size; i++)
yading@11:         avio_wb16(pb, value[i]);
yading@11: }
yading@11: 
yading@11: static void mxf_write_identification(AVFormatContext *s)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11:     const char *company = "FFmpeg";
yading@11:     const char *product = "OP1a Muxer";
yading@11:     const char *version;
yading@11:     int length;
yading@11: 
yading@11:     mxf_write_metadata_key(pb, 0x013000);
yading@11:     PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
yading@11: 
yading@11:     version = s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT ?
yading@11:         "0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION);
yading@11:     length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16
yading@11:     klv_encode_ber_length(pb, length);
yading@11: 
yading@11:     // write uid
yading@11:     mxf_write_local_tag(pb, 16, 0x3C0A);
yading@11:     mxf_write_uuid(pb, Identification, 0);
yading@11:     PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
yading@11: 
yading@11:     // write generation uid
yading@11:     mxf_write_local_tag(pb, 16, 0x3C09);
yading@11:     mxf_write_uuid(pb, Identification, 1);
yading@11: 
yading@11:     mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name
yading@11:     mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name
yading@11:     mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String
yading@11: 
yading@11:     // write product uid
yading@11:     mxf_write_local_tag(pb, 16, 0x3C05);
yading@11:     mxf_write_uuid(pb, Identification, 2);
yading@11: 
yading@11:     // modification date
yading@11:     mxf_write_local_tag(pb, 8, 0x3C06);
yading@11:     avio_wb64(pb, mxf->timestamp);
yading@11: }
yading@11: 
yading@11: static void mxf_write_content_storage(AVFormatContext *s)
yading@11: {
yading@11:     AVIOContext *pb = s->pb;
yading@11: 
yading@11:     mxf_write_metadata_key(pb, 0x011800);
yading@11:     PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
yading@11:     klv_encode_ber_length(pb, 92);
yading@11: 
yading@11:     // write uid
yading@11:     mxf_write_local_tag(pb, 16, 0x3C0A);
yading@11:     mxf_write_uuid(pb, ContentStorage, 0);
yading@11:     PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
yading@11: 
yading@11:     // write package reference
yading@11:     mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901);
yading@11:     mxf_write_refs_count(pb, 2);
yading@11:     mxf_write_uuid(pb, MaterialPackage, 0);
yading@11:     mxf_write_uuid(pb, SourcePackage, 0);
yading@11: 
yading@11:     // write essence container data
yading@11:     mxf_write_local_tag(pb, 8 + 16, 0x1902);
yading@11:     mxf_write_refs_count(pb, 1);
yading@11:     mxf_write_uuid(pb, EssenceContainerData, 0);
yading@11: }
yading@11: 
yading@11: static void mxf_write_track(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11:     MXFStreamContext *sc = st->priv_data;
yading@11: 
yading@11:     mxf_write_metadata_key(pb, 0x013b00);
yading@11:     PRINT_KEY(s, "track key", pb->buf_ptr - 16);
yading@11:     klv_encode_ber_length(pb, 80);
yading@11: 
yading@11:     // write track uid
yading@11:     mxf_write_local_tag(pb, 16, 0x3C0A);
yading@11:     mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index);
yading@11:     PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
yading@11: 
yading@11:     // write track id
yading@11:     mxf_write_local_tag(pb, 4, 0x4801);
yading@11:     avio_wb32(pb, st->index+2);
yading@11: 
yading@11:     // write track number
yading@11:     mxf_write_local_tag(pb, 4, 0x4804);
yading@11:     if (type == MaterialPackage)
yading@11:         avio_wb32(pb, 0); // track number of material package is 0
yading@11:     else
yading@11:         avio_write(pb, sc->track_essence_element_key + 12, 4);
yading@11: 
yading@11:     mxf_write_local_tag(pb, 8, 0x4B01);
yading@11:     avio_wb32(pb, mxf->time_base.den);
yading@11:     avio_wb32(pb, mxf->time_base.num);
yading@11: 
yading@11:     // write origin
yading@11:     mxf_write_local_tag(pb, 8, 0x4B02);
yading@11:     avio_wb64(pb, 0);
yading@11: 
yading@11:     // write sequence refs
yading@11:     mxf_write_local_tag(pb, 16, 0x4803);
yading@11:     mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
yading@11: }
yading@11: 
yading@11: static const uint8_t smpte_12m_timecode_track_data_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x01,0x03,0x02,0x01,0x01,0x00,0x00,0x00 };
yading@11: 
yading@11: static void mxf_write_common_fields(AVFormatContext *s, AVStream *st)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11: 
yading@11:     // find data define uls
yading@11:     mxf_write_local_tag(pb, 16, 0x0201);
yading@11:     if (st == mxf->timecode_track)
yading@11:         avio_write(pb, smpte_12m_timecode_track_data_ul, 16);
yading@11:     else {
yading@11:         const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type);
yading@11:         avio_write(pb, data_def_ul->uid, 16);
yading@11:     }
yading@11: 
yading@11:     // write duration
yading@11:     mxf_write_local_tag(pb, 8, 0x0202);
yading@11:     avio_wb64(pb, mxf->duration);
yading@11: }
yading@11: 
yading@11: static void mxf_write_sequence(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11:     enum MXFMetadataSetType component;
yading@11: 
yading@11:     mxf_write_metadata_key(pb, 0x010f00);
yading@11:     PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
yading@11:     klv_encode_ber_length(pb, 80);
yading@11: 
yading@11:     mxf_write_local_tag(pb, 16, 0x3C0A);
yading@11:     mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
yading@11: 
yading@11:     PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
yading@11:     mxf_write_common_fields(s, st);
yading@11: 
yading@11:     // write structural component
yading@11:     mxf_write_local_tag(pb, 16 + 8, 0x1001);
yading@11:     mxf_write_refs_count(pb, 1);
yading@11:     if (st == mxf->timecode_track)
yading@11:         component = TimecodeComponent;
yading@11:     else
yading@11:         component = SourceClip;
yading@11:     if (type == SourcePackage)
yading@11:         component += TypeBottom;
yading@11:     mxf_write_uuid(pb, component, st->index);
yading@11: }
yading@11: 
yading@11: static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11: 
yading@11:     mxf_write_metadata_key(pb, 0x011400);
yading@11:     klv_encode_ber_length(pb, 75);
yading@11: 
yading@11:     // UID
yading@11:     mxf_write_local_tag(pb, 16, 0x3C0A);
yading@11:     mxf_write_uuid(pb, type == MaterialPackage ? TimecodeComponent :
yading@11:                    TimecodeComponent + TypeBottom, st->index);
yading@11: 
yading@11:     mxf_write_common_fields(s, st);
yading@11: 
yading@11:     // Start Time Code
yading@11:     mxf_write_local_tag(pb, 8, 0x1501);
yading@11:     avio_wb64(pb, mxf->tc.start);
yading@11: 
yading@11:     // Rounded Time Code Base
yading@11:     mxf_write_local_tag(pb, 2, 0x1502);
yading@11:     avio_wb16(pb, mxf->timecode_base);
yading@11: 
yading@11:     // Drop Frame
yading@11:     mxf_write_local_tag(pb, 1, 0x1503);
yading@11:     avio_w8(pb, !!(mxf->tc.flags & AV_TIMECODE_FLAG_DROPFRAME));
yading@11: }
yading@11: 
yading@11: static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
yading@11: {
yading@11:     AVIOContext *pb = s->pb;
yading@11:     int i;
yading@11: 
yading@11:     mxf_write_metadata_key(pb, 0x011100);
yading@11:     PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
yading@11:     klv_encode_ber_length(pb, 108);
yading@11: 
yading@11:     // write uid
yading@11:     mxf_write_local_tag(pb, 16, 0x3C0A);
yading@11:     mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index);
yading@11: 
yading@11:     PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
yading@11:     mxf_write_common_fields(s, st);
yading@11: 
yading@11:     // write start_position
yading@11:     mxf_write_local_tag(pb, 8, 0x1201);
yading@11:     avio_wb64(pb, 0);
yading@11: 
yading@11:     // write source package uid, end of the reference
yading@11:     mxf_write_local_tag(pb, 32, 0x1101);
yading@11:     if (type == SourcePackage) {
yading@11:         for (i = 0; i < 4; i++)
yading@11:             avio_wb64(pb, 0);
yading@11:     } else
yading@11:         mxf_write_umid(s, 1);
yading@11: 
yading@11:     // write source track id
yading@11:     mxf_write_local_tag(pb, 4, 0x1102);
yading@11:     if (type == SourcePackage)
yading@11:         avio_wb32(pb, 0);
yading@11:     else
yading@11:         avio_wb32(pb, st->index+2);
yading@11: }
yading@11: 
yading@11: static void mxf_write_multi_descriptor(AVFormatContext *s)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11:     const uint8_t *ul;
yading@11:     int i;
yading@11: 
yading@11:     mxf_write_metadata_key(pb, 0x014400);
yading@11:     PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
yading@11:     klv_encode_ber_length(pb, 64 + 16LL * s->nb_streams);
yading@11: 
yading@11:     mxf_write_local_tag(pb, 16, 0x3C0A);
yading@11:     mxf_write_uuid(pb, MultipleDescriptor, 0);
yading@11:     PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
yading@11: 
yading@11:     // write sample rate
yading@11:     mxf_write_local_tag(pb, 8, 0x3001);
yading@11:     avio_wb32(pb, mxf->time_base.den);
yading@11:     avio_wb32(pb, mxf->time_base.num);
yading@11: 
yading@11:     // write essence container ul
yading@11:     mxf_write_local_tag(pb, 16, 0x3004);
yading@11:     if (mxf->essence_container_count > 1)
yading@11:         ul = multiple_desc_ul;
yading@11:     else {
yading@11:         MXFStreamContext *sc = s->streams[0]->priv_data;
yading@11:         ul = mxf_essence_container_uls[sc->index].container_ul;
yading@11:     }
yading@11:     avio_write(pb, ul, 16);
yading@11: 
yading@11:     // write sub descriptor refs
yading@11:     mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01);
yading@11:     mxf_write_refs_count(pb, s->nb_streams);
yading@11:     for (i = 0; i < s->nb_streams; i++)
yading@11:         mxf_write_uuid(pb, SubDescriptor, i);
yading@11: }
yading@11: 
yading@11: static void mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     MXFStreamContext *sc = st->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11: 
yading@11:     avio_write(pb, key, 16);
yading@11:     klv_encode_ber4_length(pb, size+20+8+12+20);
yading@11: 
yading@11:     mxf_write_local_tag(pb, 16, 0x3C0A);
yading@11:     mxf_write_uuid(pb, SubDescriptor, st->index);
yading@11: 
yading@11:     mxf_write_local_tag(pb, 4, 0x3006);
yading@11:     avio_wb32(pb, st->index+2);
yading@11: 
yading@11:     mxf_write_local_tag(pb, 8, 0x3001);
yading@11:     avio_wb32(pb, mxf->time_base.den);
yading@11:     avio_wb32(pb, mxf->time_base.num);
yading@11: 
yading@11:     mxf_write_local_tag(pb, 16, 0x3004);
yading@11:     avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
yading@11: }
yading@11: 
yading@11: static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
yading@11: static const UID mxf_wav_descriptor_key       = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
yading@11: static const UID mxf_aes3_descriptor_key      = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
yading@11: static const UID mxf_cdci_descriptor_key      = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 };
yading@11: static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 };
yading@11: 
yading@11: static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
yading@11: {
yading@11:     MXFStreamContext *sc = st->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11:     int stored_height = (st->codec->height+15)/16*16;
yading@11:     int display_height;
yading@11:     int f1, f2;
yading@11:     unsigned desc_size = size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20;
yading@11:     if (sc->interlaced && sc->field_dominance)
yading@11:         desc_size += 5;
yading@11: 
yading@11:     mxf_write_generic_desc(s, st, key, desc_size);
yading@11: 
yading@11:     mxf_write_local_tag(pb, 4, 0x3203);
yading@11:     avio_wb32(pb, st->codec->width);
yading@11: 
yading@11:     mxf_write_local_tag(pb, 4, 0x3202);
yading@11:     avio_wb32(pb, stored_height>>sc->interlaced);
yading@11: 
yading@11:     mxf_write_local_tag(pb, 4, 0x3209);
yading@11:     avio_wb32(pb, st->codec->width);
yading@11: 
yading@11:     if (st->codec->height == 608) // PAL + VBI
yading@11:         display_height = 576;
yading@11:     else if (st->codec->height == 512)  // NTSC + VBI
yading@11:         display_height = 486;
yading@11:     else
yading@11:         display_height = st->codec->height;
yading@11: 
yading@11:     mxf_write_local_tag(pb, 4, 0x3208);
yading@11:     avio_wb32(pb, display_height>>sc->interlaced);
yading@11: 
yading@11:     // component depth
yading@11:     mxf_write_local_tag(pb, 4, 0x3301);
yading@11:     avio_wb32(pb, sc->component_depth);
yading@11: 
yading@11:     // horizontal subsampling
yading@11:     mxf_write_local_tag(pb, 4, 0x3302);
yading@11:     avio_wb32(pb, 2);
yading@11: 
yading@11:     // frame layout
yading@11:     mxf_write_local_tag(pb, 1, 0x320C);
yading@11:     avio_w8(pb, sc->interlaced);
yading@11: 
yading@11:     // video line map
yading@11:     switch (st->codec->height) {
yading@11:     case  576: f1 = 23; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 335 : 336; break;
yading@11:     case  608: f1 =  7; f2 = 320; break;
yading@11:     case  480: f1 = 20; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 285 : 283; break;
yading@11:     case  512: f1 =  7; f2 = 270; break;
yading@11:     case  720: f1 = 26; f2 =   0; break; // progressive
yading@11:     case 1080: f1 = 21; f2 = 584; break;
yading@11:     default:   f1 =  0; f2 =   0; break;
yading@11:     }
yading@11: 
yading@11:     if (!sc->interlaced) {
yading@11:         f2  = 0;
yading@11:         f1 *= 2;
yading@11:     }
yading@11: 
yading@11:     mxf_write_local_tag(pb, 12+sc->interlaced*4, 0x320D);
yading@11:     avio_wb32(pb, sc->interlaced ? 2 : 1);
yading@11:     avio_wb32(pb, 4);
yading@11:     avio_wb32(pb, f1);
yading@11:     if (sc->interlaced)
yading@11:         avio_wb32(pb, f2);
yading@11: 
yading@11:     mxf_write_local_tag(pb, 8, 0x320E);
yading@11:     avio_wb32(pb, sc->aspect_ratio.num);
yading@11:     avio_wb32(pb, sc->aspect_ratio.den);
yading@11: 
yading@11:     mxf_write_local_tag(pb, 16, 0x3201);
yading@11:     avio_write(pb, *sc->codec_ul, 16);
yading@11: 
yading@11:     if (sc->interlaced && sc->field_dominance) {
yading@11:         mxf_write_local_tag(pb, 1, 0x3212);
yading@11:         avio_w8(pb, sc->field_dominance);
yading@11:     }
yading@11: 
yading@11: }
yading@11: 
yading@11: static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st)
yading@11: {
yading@11:     mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key, 0);
yading@11: }
yading@11: 
yading@11: static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
yading@11: {
yading@11:     AVIOContext *pb = s->pb;
yading@11:     int profile_and_level = (st->codec->profile<<4) | st->codec->level;
yading@11: 
yading@11:     mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key, 8+5);
yading@11: 
yading@11:     // bit rate
yading@11:     mxf_write_local_tag(pb, 4, 0x8000);
yading@11:     avio_wb32(pb, st->codec->bit_rate);
yading@11: 
yading@11:     // profile and level
yading@11:     mxf_write_local_tag(pb, 1, 0x8007);
yading@11:     if (!st->codec->profile)
yading@11:         profile_and_level |= 0x80; // escape bit
yading@11:     avio_w8(pb, profile_and_level);
yading@11: }
yading@11: 
yading@11: static void mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
yading@11: {
yading@11:     AVIOContext *pb = s->pb;
yading@11: 
yading@11:     mxf_write_generic_desc(s, st, key, size+5+12+8+8);
yading@11: 
yading@11:     // audio locked
yading@11:     mxf_write_local_tag(pb, 1, 0x3D02);
yading@11:     avio_w8(pb, 1);
yading@11: 
yading@11:     // write audio sampling rate
yading@11:     mxf_write_local_tag(pb, 8, 0x3D03);
yading@11:     avio_wb32(pb, st->codec->sample_rate);
yading@11:     avio_wb32(pb, 1);
yading@11: 
yading@11:     mxf_write_local_tag(pb, 4, 0x3D07);
yading@11:     avio_wb32(pb, st->codec->channels);
yading@11: 
yading@11:     mxf_write_local_tag(pb, 4, 0x3D01);
yading@11:     avio_wb32(pb, av_get_bits_per_sample(st->codec->codec_id));
yading@11: }
yading@11: 
yading@11: static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
yading@11: {
yading@11:     AVIOContext *pb = s->pb;
yading@11: 
yading@11:     mxf_write_generic_sound_common(s, st, key, size+6+8);
yading@11: 
yading@11:     mxf_write_local_tag(pb, 2, 0x3D0A);
yading@11:     avio_wb16(pb, st->codec->block_align);
yading@11: 
yading@11:     // avg bytes per sec
yading@11:     mxf_write_local_tag(pb, 4, 0x3D09);
yading@11:     avio_wb32(pb, st->codec->block_align*st->codec->sample_rate);
yading@11: }
yading@11: 
yading@11: static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
yading@11: {
yading@11:     mxf_write_wav_common(s, st, mxf_wav_descriptor_key, 0);
yading@11: }
yading@11: 
yading@11: static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st)
yading@11: {
yading@11:     mxf_write_wav_common(s, st, mxf_aes3_descriptor_key, 0);
yading@11: }
yading@11: 
yading@11: static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st)
yading@11: {
yading@11:     mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key, 0);
yading@11: }
yading@11: 
yading@11: static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11:     int i, track_count = s->nb_streams+1;
yading@11: 
yading@11:     if (type == MaterialPackage) {
yading@11:         mxf_write_metadata_key(pb, 0x013600);
yading@11:         PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
yading@11:         klv_encode_ber_length(pb, 92 + 16*track_count);
yading@11:     } else {
yading@11:         mxf_write_metadata_key(pb, 0x013700);
yading@11:         PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
yading@11:         klv_encode_ber_length(pb, 112 + 16*track_count); // 20 bytes length for descriptor reference
yading@11:     }
yading@11: 
yading@11:     // write uid
yading@11:     mxf_write_local_tag(pb, 16, 0x3C0A);
yading@11:     mxf_write_uuid(pb, type, 0);
yading@11:     av_log(s,AV_LOG_DEBUG, "package type:%d\n", type);
yading@11:     PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
yading@11: 
yading@11:     // write package umid
yading@11:     mxf_write_local_tag(pb, 32, 0x4401);
yading@11:     mxf_write_umid(s, type == SourcePackage);
yading@11:     PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
yading@11: 
yading@11:     // package creation date
yading@11:     mxf_write_local_tag(pb, 8, 0x4405);
yading@11:     avio_wb64(pb, mxf->timestamp);
yading@11: 
yading@11:     // package modified date
yading@11:     mxf_write_local_tag(pb, 8, 0x4404);
yading@11:     avio_wb64(pb, mxf->timestamp);
yading@11: 
yading@11:     // write track refs
yading@11:     mxf_write_local_tag(pb, track_count*16 + 8, 0x4403);
yading@11:     mxf_write_refs_count(pb, track_count);
yading@11:     mxf_write_uuid(pb, type == MaterialPackage ? Track :
yading@11:                    Track + TypeBottom, -1); // timecode track
yading@11:     for (i = 0; i < s->nb_streams; i++)
yading@11:         mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i);
yading@11: 
yading@11:     // write multiple descriptor reference
yading@11:     if (type == SourcePackage) {
yading@11:         mxf_write_local_tag(pb, 16, 0x4701);
yading@11:         if (s->nb_streams > 1) {
yading@11:             mxf_write_uuid(pb, MultipleDescriptor, 0);
yading@11:             mxf_write_multi_descriptor(s);
yading@11:         } else
yading@11:             mxf_write_uuid(pb, SubDescriptor, 0);
yading@11:     }
yading@11: 
yading@11:     // write timecode track
yading@11:     mxf_write_track(s, mxf->timecode_track, type);
yading@11:     mxf_write_sequence(s, mxf->timecode_track, type);
yading@11:     mxf_write_timecode_component(s, mxf->timecode_track, type);
yading@11: 
yading@11:     for (i = 0; i < s->nb_streams; i++) {
yading@11:         AVStream *st = s->streams[i];
yading@11:         mxf_write_track(s, st, type);
yading@11:         mxf_write_sequence(s, st, type);
yading@11:         mxf_write_structural_component(s, st, type);
yading@11: 
yading@11:         if (type == SourcePackage) {
yading@11:             MXFStreamContext *sc = st->priv_data;
yading@11:             mxf_essence_container_uls[sc->index].write_desc(s, st);
yading@11:         }
yading@11:     }
yading@11: }
yading@11: 
yading@11: static int mxf_write_essence_container_data(AVFormatContext *s)
yading@11: {
yading@11:     AVIOContext *pb = s->pb;
yading@11: 
yading@11:     mxf_write_metadata_key(pb, 0x012300);
yading@11:     klv_encode_ber_length(pb, 72);
yading@11: 
yading@11:     mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID
yading@11:     mxf_write_uuid(pb, EssenceContainerData, 0);
yading@11: 
yading@11:     mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID
yading@11:     mxf_write_umid(s, 1);
yading@11: 
yading@11:     mxf_write_local_tag(pb, 4, 0x3F07); // BodySID
yading@11:     avio_wb32(pb, 1);
yading@11: 
yading@11:     mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID
yading@11:     avio_wb32(pb, 2);
yading@11: 
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static int mxf_write_header_metadata_sets(AVFormatContext *s)
yading@11: {
yading@11:     mxf_write_preface(s);
yading@11:     mxf_write_identification(s);
yading@11:     mxf_write_content_storage(s);
yading@11:     mxf_write_package(s, MaterialPackage);
yading@11:     mxf_write_package(s, SourcePackage);
yading@11:     mxf_write_essence_container_data(s);
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static unsigned klv_fill_size(uint64_t size)
yading@11: {
yading@11:     unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1));
yading@11:     if (pad < 20) // smallest fill item possible
yading@11:         return pad + KAG_SIZE;
yading@11:     else
yading@11:         return pad & (KAG_SIZE-1);
yading@11: }
yading@11: 
yading@11: static void mxf_write_index_table_segment(AVFormatContext *s)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11:     int i, j, temporal_reordering = 0;
yading@11:     int key_index = mxf->last_key_index;
yading@11: 
yading@11:     av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
yading@11: 
yading@11:     if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
yading@11:         return;
yading@11: 
yading@11:     avio_write(pb, index_table_segment_key, 16);
yading@11: 
yading@11:     if (mxf->edit_unit_byte_count) {
yading@11:         klv_encode_ber_length(pb, 80);
yading@11:     } else {
yading@11:         klv_encode_ber_length(pb, 85 + 12+(s->nb_streams+1LL)*6 +
yading@11:                               12+mxf->edit_units_count*(11+mxf->slice_count*4LL));
yading@11:     }
yading@11: 
yading@11:     // instance id
yading@11:     mxf_write_local_tag(pb, 16, 0x3C0A);
yading@11:     mxf_write_uuid(pb, IndexTableSegment, 0);
yading@11: 
yading@11:     // index edit rate
yading@11:     mxf_write_local_tag(pb, 8, 0x3F0B);
yading@11:     avio_wb32(pb, mxf->time_base.den);
yading@11:     avio_wb32(pb, mxf->time_base.num);
yading@11: 
yading@11:     // index start position
yading@11:     mxf_write_local_tag(pb, 8, 0x3F0C);
yading@11:     avio_wb64(pb, mxf->last_indexed_edit_unit);
yading@11: 
yading@11:     // index duration
yading@11:     mxf_write_local_tag(pb, 8, 0x3F0D);
yading@11:     if (mxf->edit_unit_byte_count)
yading@11:         avio_wb64(pb, 0); // index table covers whole container
yading@11:     else
yading@11:         avio_wb64(pb, mxf->edit_units_count);
yading@11: 
yading@11:     // edit unit byte count
yading@11:     mxf_write_local_tag(pb, 4, 0x3F05);
yading@11:     avio_wb32(pb, mxf->edit_unit_byte_count);
yading@11: 
yading@11:     // index sid
yading@11:     mxf_write_local_tag(pb, 4, 0x3F06);
yading@11:     avio_wb32(pb, 2);
yading@11: 
yading@11:     // body sid
yading@11:     mxf_write_local_tag(pb, 4, 0x3F07);
yading@11:     avio_wb32(pb, 1);
yading@11: 
yading@11:     if (!mxf->edit_unit_byte_count) {
yading@11:         // real slice count - 1
yading@11:         mxf_write_local_tag(pb, 1, 0x3F08);
yading@11:         avio_w8(pb, mxf->slice_count);
yading@11: 
yading@11:         // delta entry array
yading@11:         mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09);
yading@11:         avio_wb32(pb, s->nb_streams+1); // num of entries
yading@11:         avio_wb32(pb, 6);               // size of one entry
yading@11:         // write system item delta entry
yading@11:         avio_w8(pb, 0);
yading@11:         avio_w8(pb, 0); // slice entry
yading@11:         avio_wb32(pb, 0); // element delta
yading@11:         for (i = 0; i < s->nb_streams; i++) {
yading@11:             AVStream *st = s->streams[i];
yading@11:             MXFStreamContext *sc = st->priv_data;
yading@11:             avio_w8(pb, sc->temporal_reordering);
yading@11:             if (sc->temporal_reordering)
yading@11:                 temporal_reordering = 1;
yading@11:             if (i == 0) { // video track
yading@11:                 avio_w8(pb, 0); // slice number
yading@11:                 avio_wb32(pb, KAG_SIZE); // system item size including klv fill
yading@11:             } else { // audio track
yading@11:                 unsigned audio_frame_size = sc->aic.samples[0]*sc->aic.sample_size;
yading@11:                 audio_frame_size += klv_fill_size(audio_frame_size);
yading@11:                 avio_w8(pb, 1);
yading@11:                 avio_wb32(pb, (i-1)*audio_frame_size); // element delta
yading@11:             }
yading@11:         }
yading@11: 
yading@11:         mxf_write_local_tag(pb, 8 + mxf->edit_units_count*(11+mxf->slice_count*4), 0x3F0A);
yading@11:         avio_wb32(pb, mxf->edit_units_count);  // num of entries
yading@11:         avio_wb32(pb, 11+mxf->slice_count*4);  // size of one entry
yading@11: 
yading@11:         for (i = 0; i < mxf->edit_units_count; i++) {
yading@11:             int temporal_offset = 0;
yading@11: 
yading@11:             if (!(mxf->index_entries[i].flags & 0x33)) { // I frame
yading@11:                 mxf->last_key_index = key_index;
yading@11:                 key_index = i;
yading@11:             }
yading@11: 
yading@11:             if (temporal_reordering) {
yading@11:                 int pic_num_in_gop = i - key_index;
yading@11:                 if (pic_num_in_gop != mxf->index_entries[i].temporal_ref) {
yading@11:                     for (j = key_index; j < mxf->edit_units_count; j++) {
yading@11:                         if (pic_num_in_gop == mxf->index_entries[j].temporal_ref)
yading@11:                             break;
yading@11:                     }
yading@11:                     if (j == mxf->edit_units_count)
yading@11:                         av_log(s, AV_LOG_WARNING, "missing frames\n");
yading@11:                     temporal_offset = j - key_index - pic_num_in_gop;
yading@11:                 }
yading@11:             }
yading@11:             avio_w8(pb, temporal_offset);
yading@11: 
yading@11:             if ((mxf->index_entries[i].flags & 0x30) == 0x30) { // back and forward prediction
yading@11:                 avio_w8(pb, mxf->last_key_index - i);
yading@11:             } else {
yading@11:                 avio_w8(pb, key_index - i); // key frame offset
yading@11:                 if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
yading@11:                     mxf->last_key_index = key_index;
yading@11:             }
yading@11: 
yading@11:             if (!(mxf->index_entries[i].flags & 0x33) && // I frame
yading@11:                 mxf->index_entries[i].flags & 0x40 && !temporal_offset)
yading@11:                 mxf->index_entries[i].flags |= 0x80; // random access
yading@11:             avio_w8(pb, mxf->index_entries[i].flags);
yading@11:             // stream offset
yading@11:             avio_wb64(pb, mxf->index_entries[i].offset);
yading@11:             if (s->nb_streams > 1)
yading@11:                 avio_wb32(pb, mxf->index_entries[i].slice_offset);
yading@11:         }
yading@11: 
yading@11:         mxf->last_key_index = key_index - mxf->edit_units_count;
yading@11:         mxf->last_indexed_edit_unit += mxf->edit_units_count;
yading@11:         mxf->edit_units_count = 0;
yading@11:     }
yading@11: }
yading@11: 
yading@11: static void mxf_write_klv_fill(AVFormatContext *s)
yading@11: {
yading@11:     unsigned pad = klv_fill_size(avio_tell(s->pb));
yading@11:     if (pad) {
yading@11:         avio_write(s->pb, klv_fill_key, 16);
yading@11:         pad -= 16 + 4;
yading@11:         klv_encode_ber4_length(s->pb, pad);
yading@11:         for (; pad; pad--)
yading@11:             avio_w8(s->pb, 0);
yading@11:         av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
yading@11:     }
yading@11: }
yading@11: 
yading@11: static void mxf_write_partition(AVFormatContext *s, int bodysid,
yading@11:                                 int indexsid,
yading@11:                                 const uint8_t *key, int write_metadata)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11:     int64_t header_byte_count_offset;
yading@11:     unsigned index_byte_count = 0;
yading@11:     uint64_t partition_offset = avio_tell(pb);
yading@11: 
yading@11:     if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
yading@11:         index_byte_count = 85 + 12+(s->nb_streams+1)*6 +
yading@11:             12+mxf->edit_units_count*(11+mxf->slice_count*4);
yading@11:     else if (mxf->edit_unit_byte_count && indexsid)
yading@11:         index_byte_count = 80;
yading@11: 
yading@11:     if (index_byte_count) {
yading@11:         // add encoded ber length
yading@11:         index_byte_count += 16 + klv_ber_length(index_byte_count);
yading@11:         index_byte_count += klv_fill_size(index_byte_count);
yading@11:     }
yading@11: 
yading@11:     if (!memcmp(key, body_partition_key, 16)) {
yading@11:         mxf->body_partition_offset =
yading@11:             av_realloc(mxf->body_partition_offset,
yading@11:                        (mxf->body_partitions_count+1)*
yading@11:                        sizeof(*mxf->body_partition_offset));
yading@11:         mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset;
yading@11:     }
yading@11: 
yading@11:     // write klv
yading@11:     avio_write(pb, key, 16);
yading@11:     klv_encode_ber_length(pb, 88 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
yading@11: 
yading@11:     // write partition value
yading@11:     avio_wb16(pb, 1); // majorVersion
yading@11:     avio_wb16(pb, 2); // minorVersion
yading@11:     avio_wb32(pb, KAG_SIZE); // KAGSize
yading@11: 
yading@11:     avio_wb64(pb, partition_offset); // ThisPartition
yading@11: 
yading@11:     if (!memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1)
yading@11:         avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition
yading@11:     else if (!memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count)
yading@11:         avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition
yading@11:     else
yading@11:         avio_wb64(pb, 0);
yading@11: 
yading@11:     avio_wb64(pb, mxf->footer_partition_offset); // footerPartition
yading@11: 
yading@11:     // set offset
yading@11:     header_byte_count_offset = avio_tell(pb);
yading@11:     avio_wb64(pb, 0); // headerByteCount, update later
yading@11: 
yading@11:     // indexTable
yading@11:     avio_wb64(pb, index_byte_count); // indexByteCount
yading@11:     avio_wb32(pb, index_byte_count ? indexsid : 0); // indexSID
yading@11: 
yading@11:     // BodyOffset
yading@11:     if (bodysid && mxf->edit_units_count && mxf->body_partitions_count) {
yading@11:         avio_wb64(pb, mxf->body_offset);
yading@11:     } else
yading@11:         avio_wb64(pb, 0);
yading@11: 
yading@11:     avio_wb32(pb, bodysid); // bodySID
yading@11: 
yading@11:     // operational pattern
yading@11:     avio_write(pb, op1a_ul, 16);
yading@11: 
yading@11:     // essence container
yading@11:     mxf_write_essence_container_refs(s);
yading@11: 
yading@11:     if (write_metadata) {
yading@11:         // mark the start of the headermetadata and calculate metadata size
yading@11:         int64_t pos, start;
yading@11:         unsigned header_byte_count;
yading@11: 
yading@11:         mxf_write_klv_fill(s);
yading@11:         start = avio_tell(s->pb);
yading@11:         mxf_write_primer_pack(s);
yading@11:         mxf_write_header_metadata_sets(s);
yading@11:         pos = avio_tell(s->pb);
yading@11:         header_byte_count = pos - start + klv_fill_size(pos);
yading@11: 
yading@11:         // update header_byte_count
yading@11:         avio_seek(pb, header_byte_count_offset, SEEK_SET);
yading@11:         avio_wb64(pb, header_byte_count);
yading@11:         avio_seek(pb, pos, SEEK_SET);
yading@11:     }
yading@11: 
yading@11:     avio_flush(pb);
yading@11: }
yading@11: 
yading@11: static int mxf_parse_dnxhd_frame(AVFormatContext *s, AVStream *st,
yading@11: AVPacket *pkt)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     MXFStreamContext *sc = st->priv_data;
yading@11:     int i, cid;
yading@11:     uint8_t* header_cid;
yading@11:     int frame_size = 0;
yading@11: 
yading@11:     if (mxf->header_written)
yading@11:         return 1;
yading@11: 
yading@11:     if (pkt->size < 43)
yading@11:         return -1;
yading@11: 
yading@11:     header_cid = pkt->data + 0x28;
yading@11:     cid = header_cid[0] << 24 | header_cid[1] << 16 | header_cid[2] << 8 | header_cid[3];
yading@11: 
yading@11:     if ((frame_size = avpriv_dnxhd_get_frame_size(cid)) < 0)
yading@11:         return -1;
yading@11: 
yading@11:     switch (cid) {
yading@11:     case 1235:
yading@11:         sc->index = 24;
yading@11:         sc->component_depth = 10;
yading@11:         break;
yading@11:     case 1237:
yading@11:         sc->index = 25;
yading@11:         break;
yading@11:     case 1238:
yading@11:         sc->index = 26;
yading@11:         break;
yading@11:     case 1241:
yading@11:         sc->index = 27;
yading@11:         sc->component_depth = 10;
yading@11:         break;
yading@11:     case 1242:
yading@11:         sc->index = 28;
yading@11:         break;
yading@11:     case 1243:
yading@11:         sc->index = 29;
yading@11:         break;
yading@11:     case 1250:
yading@11:         sc->index = 30;
yading@11:         sc->component_depth = 10;
yading@11:         break;
yading@11:     case 1251:
yading@11:         sc->index = 31;
yading@11:         break;
yading@11:     case 1252:
yading@11:         sc->index = 32;
yading@11:         break;
yading@11:     case 1253:
yading@11:         sc->index = 33;
yading@11:         break;
yading@11:     default:
yading@11:         return -1;
yading@11:     }
yading@11: 
yading@11:     sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
yading@11:     sc->aspect_ratio = (AVRational){ 16, 9 };
yading@11: 
yading@11:     mxf->edit_unit_byte_count = KAG_SIZE;
yading@11:     for (i = 0; i < s->nb_streams; i++) {
yading@11:         AVStream *st = s->streams[i];
yading@11:         MXFStreamContext *sc = st->priv_data;
yading@11:         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
yading@11:             mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
yading@11:             mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
yading@11:         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
yading@11:             mxf->edit_unit_byte_count += 16 + 4 + frame_size;
yading@11:             mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     return 1;
yading@11: }
yading@11: 
yading@11: static int mxf_parse_dv_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     MXFStreamContext *sc = st->priv_data;
yading@11:     uint8_t *vs_pack, *vsc_pack;
yading@11:     int i, ul_index, frame_size, stype, pal;
yading@11: 
yading@11:     if (mxf->header_written)
yading@11:         return 1;
yading@11: 
yading@11:     // Check for minimal frame size
yading@11:     if (pkt->size < 120000)
yading@11:         return -1;
yading@11: 
yading@11:     vs_pack  = pkt->data + 80*5 + 48;
yading@11:     vsc_pack = pkt->data + 80*5 + 53;
yading@11:     stype    = vs_pack[3] & 0x1f;
yading@11:     pal      = (vs_pack[3] >> 5) & 0x1;
yading@11: 
yading@11:     if ((vs_pack[2] & 0x07) == 0x02)
yading@11:         sc->aspect_ratio = (AVRational){ 16, 9 };
yading@11:     else
yading@11:         sc->aspect_ratio = (AVRational){ 4, 3 };
yading@11: 
yading@11:     sc->interlaced = (vsc_pack[3] >> 4) & 0x01;
yading@11:     // TODO: fix dv encoder to set proper FF/FS value in VSC pack
yading@11:     // and set field dominance accordingly
yading@11:     // av_log(s, AV_LOG_DEBUG, "DV vsc pack ff/ss = %x\n", vsc_pack[2] >> 6);
yading@11: 
yading@11:     switch (stype) {
yading@11:     case 0x18: // DV100 720p
yading@11:         ul_index = 6 + pal;
yading@11:         frame_size = pal ? 288000 : 240000;
yading@11:         if (sc->interlaced) {
yading@11:             av_log(s, AV_LOG_ERROR, "source marked as interlaced but codec profile is progressive\n");
yading@11:             sc->interlaced = 0;
yading@11:         }
yading@11:         break;
yading@11:     case 0x14: // DV100 1080i
yading@11:         ul_index = 4 + pal;
yading@11:         frame_size = pal ? 576000 : 480000;
yading@11:         break;
yading@11:     case 0x04: // DV50
yading@11:         ul_index = 2 + pal;
yading@11:         frame_size = pal ? 288000 : 240000;
yading@11:         break;
yading@11:     default: // DV25
yading@11:         ul_index = 0 + pal;
yading@11:         frame_size = pal ? 144000 : 120000;
yading@11:     }
yading@11: 
yading@11:     sc->index = ul_index + 16;
yading@11:     sc->codec_ul =  &mxf_essence_container_uls[sc->index].codec_ul;
yading@11: 
yading@11:     mxf->edit_unit_byte_count = KAG_SIZE;
yading@11:     for (i = 0; i < s->nb_streams; i++) {
yading@11:         AVStream *st = s->streams[i];
yading@11:         MXFStreamContext *sc = st->priv_data;
yading@11:         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
yading@11:             mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
yading@11:             mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
yading@11:         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
yading@11:             mxf->edit_unit_byte_count += 16 + 4 + frame_size;
yading@11:             mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     return 1;
yading@11: }
yading@11: 
yading@11: static const UID mxf_mpeg2_codec_uls[] = {
yading@11:     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
yading@11:     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
yading@11:     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
yading@11:     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
yading@11:     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
yading@11:     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
yading@11:     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
yading@11:     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
yading@11:     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x02,0x00 }, // MP@H-14 I-Frame
yading@11:     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x03,0x00 }, // MP@H-14 Long GOP
yading@11: };
yading@11: 
yading@11: static const UID *mxf_get_mpeg2_codec_ul(AVCodecContext *avctx)
yading@11: {
yading@11:     int long_gop = avctx->gop_size > 1 || avctx->has_b_frames;
yading@11: 
yading@11:     if (avctx->profile == 4) { // Main
yading@11:         if (avctx->level == 8) // Main
yading@11:             return &mxf_mpeg2_codec_uls[0+long_gop];
yading@11:         else if (avctx->level == 4) // High
yading@11:             return &mxf_mpeg2_codec_uls[4+long_gop];
yading@11:         else if (avctx->level == 6) // High 14
yading@11:             return &mxf_mpeg2_codec_uls[8+long_gop];
yading@11:     } else if (avctx->profile == 0) { // 422
yading@11:         if (avctx->level == 5) // Main
yading@11:             return &mxf_mpeg2_codec_uls[2+long_gop];
yading@11:         else if (avctx->level == 2) // High
yading@11:             return &mxf_mpeg2_codec_uls[6+long_gop];
yading@11:     }
yading@11:     return NULL;
yading@11: }
yading@11: 
yading@11: static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st,
yading@11:                                  AVPacket *pkt, MXFIndexEntry *e)
yading@11: {
yading@11:     MXFStreamContext *sc = st->priv_data;
yading@11:     uint32_t c = -1;
yading@11:     int i;
yading@11: 
yading@11:     for(i = 0; i < pkt->size - 4; i++) {
yading@11:         c = (c<<8) + pkt->data[i];
yading@11:         if (c == 0x1b5) {
yading@11:             if ((pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
yading@11:                 st->codec->profile = pkt->data[i+1] & 0x07;
yading@11:                 st->codec->level   = pkt->data[i+2] >> 4;
yading@11:             } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
yading@11:                 sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
yading@11:                 if (sc->interlaced)
yading@11:                     sc->field_dominance = 1 + !(pkt->data[i+4] & 0x80); // top field first
yading@11:                 break;
yading@11:             }
yading@11:         } else if (c == 0x1b8) { // gop
yading@11:             if (pkt->data[i+4]>>6 & 0x01) { // closed
yading@11:                 sc->closed_gop = 1;
yading@11:                 if (e->flags & 0x40) // sequence header present
yading@11:                     e->flags |= 0x80; // random access
yading@11:             }
yading@11:         } else if (c == 0x1b3) { // seq
yading@11:             e->flags |= 0x40;
yading@11:             switch ((pkt->data[i+4]>>4) & 0xf) {
yading@11:             case 2:  sc->aspect_ratio = (AVRational){  4,  3}; break;
yading@11:             case 3:  sc->aspect_ratio = (AVRational){ 16,  9}; break;
yading@11:             case 4:  sc->aspect_ratio = (AVRational){221,100}; break;
yading@11:             default:
yading@11:                 av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
yading@11:                           st->codec->width, st->codec->height, 1024*1024);
yading@11:             }
yading@11:         } else if (c == 0x100) { // pic
yading@11:             int pict_type = (pkt->data[i+2]>>3) & 0x07;
yading@11:             e->temporal_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
yading@11:             if (pict_type == 2) { // P frame
yading@11:                 e->flags |= 0x22;
yading@11:                 sc->closed_gop = 0; // reset closed gop, don't matter anymore
yading@11:             } else if (pict_type == 3) { // B frame
yading@11:                 if (sc->closed_gop)
yading@11:                     e->flags |= 0x13; // only backward prediction
yading@11:                 else
yading@11:                     e->flags |= 0x33;
yading@11:                 sc->temporal_reordering = -1;
yading@11:             } else if (!pict_type) {
yading@11:                 av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
yading@11:                 return 0;
yading@11:             }
yading@11:         }
yading@11:     }
yading@11:     if (s->oformat != &ff_mxf_d10_muxer)
yading@11:         sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec);
yading@11:     return !!sc->codec_ul;
yading@11: }
yading@11: 
yading@11: static uint64_t mxf_parse_timestamp(time_t timestamp)
yading@11: {
yading@11:     struct tm *time = gmtime(&timestamp);
yading@11:     if (!time)
yading@11:         return 0;
yading@11:     return (uint64_t)(time->tm_year+1900) << 48 |
yading@11:            (uint64_t)(time->tm_mon+1)     << 40 |
yading@11:            (uint64_t) time->tm_mday       << 32 |
yading@11:                       time->tm_hour       << 24 |
yading@11:                       time->tm_min        << 16 |
yading@11:                       time->tm_sec        << 8;
yading@11: }
yading@11: 
yading@11: static void mxf_gen_umid(AVFormatContext *s)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     uint32_t seed = av_get_random_seed();
yading@11:     uint64_t umid = seed + 0x5294713400000000LL;
yading@11: 
yading@11:     AV_WB64(mxf->umid  , umid);
yading@11:     AV_WB64(mxf->umid+8, umid>>8);
yading@11: 
yading@11:     mxf->instance_number = seed;
yading@11: }
yading@11: 
yading@11: static int mxf_write_header(AVFormatContext *s)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     int i, ret;
yading@11:     uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
yading@11:     const MXFSamplesPerFrame *spf = NULL;
yading@11:     AVDictionaryEntry *t;
yading@11:     int64_t timestamp = 0;
yading@11:     AVDictionaryEntry *tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
yading@11: 
yading@11:     if (!s->nb_streams)
yading@11:         return -1;
yading@11: 
yading@11:     for (i = 0; i < s->nb_streams; i++) {
yading@11:         AVStream *st = s->streams[i];
yading@11:         MXFStreamContext *sc = av_mallocz(sizeof(*sc));
yading@11:         if (!sc)
yading@11:             return AVERROR(ENOMEM);
yading@11:         st->priv_data = sc;
yading@11: 
yading@11:         if ((i == 0) ^ (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)) {
yading@11:             av_log(s, AV_LOG_ERROR, "there must be exactly one video stream and it must be the first one\n");
yading@11:             return -1;
yading@11:         }
yading@11: 
yading@11:         if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
yading@11:             AVRational rate, tbc = st->codec->time_base;
yading@11:             // Default component depth to 8
yading@11:             sc->component_depth = 8;
yading@11:             mxf->timecode_base = (tbc.den + tbc.num/2) / tbc.num;
yading@11:             spf = ff_mxf_get_samples_per_frame(s, tbc);
yading@11:             if (!spf) {
yading@11:                 av_log(s, AV_LOG_ERROR, "Unsupported video frame rate %d/%d\n",
yading@11:                        tbc.den, tbc.num);
yading@11:                 return AVERROR(EINVAL);
yading@11:             }
yading@11:             mxf->time_base = spf->time_base;
yading@11:             rate = av_inv_q(mxf->time_base);
yading@11:             avpriv_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
yading@11:             if (!tcr)
yading@11:                 tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
yading@11:             if (tcr)
yading@11:                 ret = av_timecode_init_from_string(&mxf->tc, rate, tcr->value, s);
yading@11:             else
yading@11:                 ret = av_timecode_init(&mxf->tc, rate, 0, 0, s);
yading@11:             if (ret < 0)
yading@11:                 return ret;
yading@11:             if (s->oformat == &ff_mxf_d10_muxer) {
yading@11:                 if (st->codec->bit_rate == 50000000) {
yading@11:                     if (mxf->time_base.den == 25) sc->index = 3;
yading@11:                     else                          sc->index = 5;
yading@11:                 } else if (st->codec->bit_rate == 40000000) {
yading@11:                     if (mxf->time_base.den == 25) sc->index = 7;
yading@11:                     else                          sc->index = 9;
yading@11:                 } else if (st->codec->bit_rate == 30000000) {
yading@11:                     if (mxf->time_base.den == 25) sc->index = 11;
yading@11:                     else                          sc->index = 13;
yading@11:                 } else {
yading@11:                     av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
yading@11:                     return -1;
yading@11:                 }
yading@11: 
yading@11:                 mxf->edit_unit_byte_count = KAG_SIZE; // system element
yading@11:                 mxf->edit_unit_byte_count += 16 + 4 + (uint64_t)st->codec->bit_rate *
yading@11:                     mxf->time_base.num / (8*mxf->time_base.den);
yading@11:                 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
yading@11:                 mxf->edit_unit_byte_count += 16 + 4 + 4 + spf->samples_per_frame[0]*8*4;
yading@11:                 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
yading@11:             }
yading@11:         } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
yading@11:             if (st->codec->sample_rate != 48000) {
yading@11:                 av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
yading@11:                 return -1;
yading@11:             }
yading@11:             avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
yading@11:             if (s->oformat == &ff_mxf_d10_muxer) {
yading@11:                 if (st->index != 1) {
yading@11:                     av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
yading@11:                     return -1;
yading@11:                 }
yading@11:                 if (st->codec->codec_id != AV_CODEC_ID_PCM_S16LE &&
yading@11:                     st->codec->codec_id != AV_CODEC_ID_PCM_S24LE) {
yading@11:                     av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
yading@11:                 }
yading@11:                 sc->index = ((MXFStreamContext*)s->streams[0]->priv_data)->index + 1;
yading@11:             } else
yading@11:             mxf->slice_count = 1;
yading@11:         }
yading@11: 
yading@11:         if (!sc->index) {
yading@11:             sc->index = mxf_get_essence_container_ul_index(st->codec->codec_id);
yading@11:             if (sc->index == -1) {
yading@11:                 av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
yading@11:                        "codec not currently supported in container\n", i);
yading@11:                 return -1;
yading@11:             }
yading@11:         }
yading@11: 
yading@11:         sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
yading@11: 
yading@11:         memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
yading@11:         sc->track_essence_element_key[15] = present[sc->index];
yading@11:         PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
yading@11: 
yading@11:         if (!present[sc->index])
yading@11:             mxf->essence_container_count++;
yading@11:         present[sc->index]++;
yading@11:     }
yading@11: 
yading@11:     if (s->oformat == &ff_mxf_d10_muxer) {
yading@11:         mxf->essence_container_count = 1;
yading@11:     }
yading@11: 
yading@11:     if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT))
yading@11:         mxf_gen_umid(s);
yading@11: 
yading@11:     for (i = 0; i < s->nb_streams; i++) {
yading@11:         MXFStreamContext *sc = s->streams[i]->priv_data;
yading@11:         // update element count
yading@11:         sc->track_essence_element_key[13] = present[sc->index];
yading@11:         if (!memcmp(sc->track_essence_element_key, mxf_essence_container_uls[15].element_ul, 13)) // DV
yading@11:             sc->order = (0x15 << 24) | AV_RB32(sc->track_essence_element_key+13);
yading@11:         else
yading@11:             sc->order = AV_RB32(sc->track_essence_element_key+12);
yading@11:     }
yading@11: 
yading@11:     if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
yading@11:         timestamp = ff_iso8601_to_unix_time(t->value);
yading@11:     if (timestamp)
yading@11:         mxf->timestamp = mxf_parse_timestamp(timestamp);
yading@11:     mxf->duration = -1;
yading@11: 
yading@11:     mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
yading@11:     if (!mxf->timecode_track)
yading@11:         return AVERROR(ENOMEM);
yading@11:     mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext));
yading@11:     if (!mxf->timecode_track->priv_data)
yading@11:         return AVERROR(ENOMEM);
yading@11:     mxf->timecode_track->index = -1;
yading@11: 
yading@11:     if (!spf)
yading@11:         spf = ff_mxf_get_samples_per_frame(s, (AVRational){ 1, 25 });
yading@11: 
yading@11:     if (ff_audio_interleave_init(s, spf->samples_per_frame, mxf->time_base) < 0)
yading@11:         return -1;
yading@11: 
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static const uint8_t system_metadata_pack_key[]        = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 };
yading@11: static const uint8_t system_metadata_package_set_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x43,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x02,0x01 };
yading@11: 
yading@11: static void mxf_write_system_item(AVFormatContext *s)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11:     unsigned frame;
yading@11:     uint32_t time_code;
yading@11: 
yading@11:     frame = mxf->last_indexed_edit_unit + mxf->edit_units_count;
yading@11: 
yading@11:     // write system metadata pack
yading@11:     avio_write(pb, system_metadata_pack_key, 16);
yading@11:     klv_encode_ber4_length(pb, 57);
yading@11:     avio_w8(pb, 0x5c); // UL, user date/time stamp, picture and sound item present
yading@11:     avio_w8(pb, 0x04); // content package rate
yading@11:     avio_w8(pb, 0x00); // content package type
yading@11:     avio_wb16(pb, 0x00); // channel handle
yading@11:     avio_wb16(pb, (mxf->tc.start + frame) & 0xFFFF); // continuity count, supposed to overflow
yading@11:     if (mxf->essence_container_count > 1)
yading@11:         avio_write(pb, multiple_desc_ul, 16);
yading@11:     else {
yading@11:         MXFStreamContext *sc = s->streams[0]->priv_data;
yading@11:         avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
yading@11:     }
yading@11:     avio_w8(pb, 0);
yading@11:     avio_wb64(pb, 0);
yading@11:     avio_wb64(pb, 0); // creation date/time stamp
yading@11: 
yading@11:     avio_w8(pb, 0x81); // SMPTE 12M time code
yading@11:     time_code = av_timecode_get_smpte_from_framenum(&mxf->tc, frame);
yading@11:     avio_wb32(pb, time_code);
yading@11:     avio_wb32(pb, 0); // binary group data
yading@11:     avio_wb64(pb, 0);
yading@11: 
yading@11:     // write system metadata package set
yading@11:     avio_write(pb, system_metadata_package_set_key, 16);
yading@11:     klv_encode_ber4_length(pb, 35);
yading@11:     avio_w8(pb, 0x83); // UMID
yading@11:     avio_wb16(pb, 0x20);
yading@11:     mxf_write_umid(s, 1);
yading@11: }
yading@11: 
yading@11: static void mxf_write_d10_video_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11:     int packet_size = (uint64_t)st->codec->bit_rate*mxf->time_base.num /
yading@11:         (8*mxf->time_base.den); // frame size
yading@11:     int pad;
yading@11: 
yading@11:     packet_size += 16 + 4;
yading@11:     packet_size += klv_fill_size(packet_size);
yading@11: 
yading@11:     klv_encode_ber4_length(pb, pkt->size);
yading@11:     avio_write(pb, pkt->data, pkt->size);
yading@11: 
yading@11:     // ensure CBR muxing by padding to correct video frame size
yading@11:     pad = packet_size - pkt->size - 16 - 4;
yading@11:     if (pad > 20) {
yading@11:         avio_write(s->pb, klv_fill_key, 16);
yading@11:         pad -= 16 + 4;
yading@11:         klv_encode_ber4_length(s->pb, pad);
yading@11:         for (; pad; pad--)
yading@11:             avio_w8(s->pb, 0);
yading@11:         av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
yading@11:     } else {
yading@11:         av_log(s, AV_LOG_WARNING, "cannot fill d-10 video packet\n");
yading@11:         for (; pad > 0; pad--)
yading@11:             avio_w8(s->pb, 0);
yading@11:     }
yading@11: }
yading@11: 
yading@11: static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11:     int frame_size = pkt->size / st->codec->block_align;
yading@11:     uint8_t *samples = pkt->data;
yading@11:     uint8_t *end = pkt->data + pkt->size;
yading@11:     int i;
yading@11: 
yading@11:     klv_encode_ber4_length(pb, 4 + frame_size*4*8);
yading@11: 
yading@11:     avio_w8(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1));
yading@11:     avio_wl16(pb, frame_size);
yading@11:     avio_w8(pb, (1<<st->codec->channels)-1);
yading@11: 
yading@11:     while (samples < end) {
yading@11:         for (i = 0; i < st->codec->channels; i++) {
yading@11:             uint32_t sample;
yading@11:             if (st->codec->codec_id == AV_CODEC_ID_PCM_S24LE) {
yading@11:                 sample = AV_RL24(samples)<< 4;
yading@11:                 samples += 3;
yading@11:             } else {
yading@11:                 sample = AV_RL16(samples)<<12;
yading@11:                 samples += 2;
yading@11:             }
yading@11:             avio_wl32(pb, sample | i);
yading@11:         }
yading@11:         for (; i < 8; i++)
yading@11:             avio_wl32(pb, i);
yading@11:     }
yading@11: }
yading@11: 
yading@11: static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11:     AVStream *st = s->streams[pkt->stream_index];
yading@11:     MXFStreamContext *sc = st->priv_data;
yading@11:     MXFIndexEntry ie = {0};
yading@11: 
yading@11:     if (!mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) {
yading@11:         mxf->index_entries = av_realloc(mxf->index_entries,
yading@11:             (mxf->edit_units_count + EDIT_UNITS_PER_BODY)*sizeof(*mxf->index_entries));
yading@11:         if (!mxf->index_entries) {
yading@11:             av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
yading@11:             return -1;
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     if (st->codec->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
yading@11:         if (!mxf_parse_mpeg2_frame(s, st, pkt, &ie)) {
yading@11:             av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
yading@11:             return -1;
yading@11:         }
yading@11:     } else if (st->codec->codec_id == AV_CODEC_ID_DNXHD) {
yading@11:         if (!mxf_parse_dnxhd_frame(s, st, pkt)) {
yading@11:             av_log(s, AV_LOG_ERROR, "could not get dnxhd profile\n");
yading@11:             return -1;
yading@11:         }
yading@11:     } else if (st->codec->codec_id == AV_CODEC_ID_DVVIDEO) {
yading@11:         if (!mxf_parse_dv_frame(s, st, pkt)) {
yading@11:             av_log(s, AV_LOG_ERROR, "could not get dv profile\n");
yading@11:             return -1;
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     if (!mxf->header_written) {
yading@11:         if (mxf->edit_unit_byte_count) {
yading@11:             mxf_write_partition(s, 1, 2, header_open_partition_key, 1);
yading@11:             mxf_write_klv_fill(s);
yading@11:             mxf_write_index_table_segment(s);
yading@11:         } else {
yading@11:             mxf_write_partition(s, 0, 0, header_open_partition_key, 1);
yading@11:         }
yading@11:         mxf->header_written = 1;
yading@11:     }
yading@11: 
yading@11:     if (st->index == 0) {
yading@11:         if (!mxf->edit_unit_byte_count &&
yading@11:             (!mxf->edit_units_count || mxf->edit_units_count > EDIT_UNITS_PER_BODY) &&
yading@11:             !(ie.flags & 0x33)) { // I frame, Gop start
yading@11:             mxf_write_klv_fill(s);
yading@11:             mxf_write_partition(s, 1, 2, body_partition_key, 0);
yading@11: 
yading@11:             mxf_write_klv_fill(s);
yading@11:             mxf_write_index_table_segment(s);
yading@11:         }
yading@11: 
yading@11:         mxf_write_klv_fill(s);
yading@11:         mxf_write_system_item(s);
yading@11: 
yading@11:         if (!mxf->edit_unit_byte_count) {
yading@11:             mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
yading@11:             mxf->index_entries[mxf->edit_units_count].flags = ie.flags;
yading@11:             mxf->index_entries[mxf->edit_units_count].temporal_ref = ie.temporal_ref;
yading@11:             mxf->body_offset += KAG_SIZE; // size of system element
yading@11:         }
yading@11:         mxf->edit_units_count++;
yading@11:     } else if (!mxf->edit_unit_byte_count && st->index == 1) {
yading@11:         mxf->index_entries[mxf->edit_units_count-1].slice_offset =
yading@11:             mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset;
yading@11:     }
yading@11: 
yading@11:     mxf_write_klv_fill(s);
yading@11:     avio_write(pb, sc->track_essence_element_key, 16); // write key
yading@11:     if (s->oformat == &ff_mxf_d10_muxer) {
yading@11:         if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
yading@11:             mxf_write_d10_video_packet(s, st, pkt);
yading@11:         else
yading@11:             mxf_write_d10_audio_packet(s, st, pkt);
yading@11:     } else {
yading@11:         klv_encode_ber4_length(pb, pkt->size); // write length
yading@11:         avio_write(pb, pkt->data, pkt->size);
yading@11:         mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size);
yading@11:     }
yading@11: 
yading@11:     avio_flush(pb);
yading@11: 
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static void mxf_write_random_index_pack(AVFormatContext *s)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11:     uint64_t pos = avio_tell(pb);
yading@11:     int i;
yading@11: 
yading@11:     avio_write(pb, random_index_pack_key, 16);
yading@11:     klv_encode_ber_length(pb, 28 + 12LL*mxf->body_partitions_count);
yading@11: 
yading@11:     if (mxf->edit_unit_byte_count)
yading@11:         avio_wb32(pb, 1); // BodySID of header partition
yading@11:     else
yading@11:         avio_wb32(pb, 0);
yading@11:     avio_wb64(pb, 0); // offset of header partition
yading@11: 
yading@11:     for (i = 0; i < mxf->body_partitions_count; i++) {
yading@11:         avio_wb32(pb, 1); // BodySID
yading@11:         avio_wb64(pb, mxf->body_partition_offset[i]);
yading@11:     }
yading@11: 
yading@11:     avio_wb32(pb, 0); // BodySID of footer partition
yading@11:     avio_wb64(pb, mxf->footer_partition_offset);
yading@11: 
yading@11:     avio_wb32(pb, avio_tell(pb) - pos + 4);
yading@11: }
yading@11: 
yading@11: static int mxf_write_footer(AVFormatContext *s)
yading@11: {
yading@11:     MXFContext *mxf = s->priv_data;
yading@11:     AVIOContext *pb = s->pb;
yading@11: 
yading@11:     mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count;
yading@11: 
yading@11:     mxf_write_klv_fill(s);
yading@11:     mxf->footer_partition_offset = avio_tell(pb);
yading@11:     if (mxf->edit_unit_byte_count) { // no need to repeat index
yading@11:         mxf_write_partition(s, 0, 0, footer_partition_key, 0);
yading@11:     } else {
yading@11:         mxf_write_partition(s, 0, 2, footer_partition_key, 0);
yading@11: 
yading@11:         mxf_write_klv_fill(s);
yading@11:         mxf_write_index_table_segment(s);
yading@11:     }
yading@11: 
yading@11:     mxf_write_klv_fill(s);
yading@11:     mxf_write_random_index_pack(s);
yading@11: 
yading@11:     if (s->pb->seekable) {
yading@11:         avio_seek(pb, 0, SEEK_SET);
yading@11:         if (mxf->edit_unit_byte_count) {
yading@11:             mxf_write_partition(s, 1, 2, header_closed_partition_key, 1);
yading@11:             mxf_write_klv_fill(s);
yading@11:             mxf_write_index_table_segment(s);
yading@11:         } else {
yading@11:             mxf_write_partition(s, 0, 0, header_closed_partition_key, 1);
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     ff_audio_interleave_close(s);
yading@11: 
yading@11:     av_freep(&mxf->index_entries);
yading@11:     av_freep(&mxf->body_partition_offset);
yading@11:     av_freep(&mxf->timecode_track->priv_data);
yading@11:     av_freep(&mxf->timecode_track);
yading@11: 
yading@11:     mxf_free(s);
yading@11: 
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
yading@11: {
yading@11:     int i, stream_count = 0;
yading@11: 
yading@11:     for (i = 0; i < s->nb_streams; i++)
yading@11:         stream_count += !!s->streams[i]->last_in_packet_buffer;
yading@11: 
yading@11:     if (stream_count && (s->nb_streams == stream_count || flush)) {
yading@11:         AVPacketList *pktl = s->packet_buffer;
yading@11:         if (s->nb_streams != stream_count) {
yading@11:             AVPacketList *last = NULL;
yading@11:             // find last packet in edit unit
yading@11:             while (pktl) {
yading@11:                 if (!stream_count || pktl->pkt.stream_index == 0)
yading@11:                     break;
yading@11:                 last = pktl;
yading@11:                 pktl = pktl->next;
yading@11:                 stream_count--;
yading@11:             }
yading@11:             // purge packet queue
yading@11:             while (pktl) {
yading@11:                 AVPacketList *next = pktl->next;
yading@11: 
yading@11:                 if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
yading@11:                     s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
yading@11:                 av_free_packet(&pktl->pkt);
yading@11:                 av_freep(&pktl);
yading@11:                 pktl = next;
yading@11:             }
yading@11:             if (last)
yading@11:                 last->next = NULL;
yading@11:             else {
yading@11:                 s->packet_buffer = NULL;
yading@11:                 s->packet_buffer_end= NULL;
yading@11:                 goto out;
yading@11:             }
yading@11:             pktl = s->packet_buffer;
yading@11:         }
yading@11: 
yading@11:         *out = pktl->pkt;
yading@11:         av_dlog(s, "out st:%d dts:%"PRId64"\n", (*out).stream_index, (*out).dts);
yading@11:         s->packet_buffer = pktl->next;
yading@11:         if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
yading@11:             s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
yading@11:         if(!s->packet_buffer)
yading@11:             s->packet_buffer_end= NULL;
yading@11:         av_freep(&pktl);
yading@11:         return 1;
yading@11:     } else {
yading@11:     out:
yading@11:         av_init_packet(out);
yading@11:         return 0;
yading@11:     }
yading@11: }
yading@11: 
yading@11: static int mxf_compare_timestamps(AVFormatContext *s, AVPacket *next, AVPacket *pkt)
yading@11: {
yading@11:     MXFStreamContext *sc  = s->streams[pkt ->stream_index]->priv_data;
yading@11:     MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data;
yading@11: 
yading@11:     return next->dts > pkt->dts ||
yading@11:         (next->dts == pkt->dts && sc->order < sc2->order);
yading@11: }
yading@11: 
yading@11: static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
yading@11: {
yading@11:     return ff_audio_rechunk_interleave(s, out, pkt, flush,
yading@11:                                mxf_interleave_get_packet, mxf_compare_timestamps);
yading@11: }
yading@11: 
yading@11: AVOutputFormat ff_mxf_muxer = {
yading@11:     .name              = "mxf",
yading@11:     .long_name         = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format)"),
yading@11:     .mime_type         = "application/mxf",
yading@11:     .extensions        = "mxf",
yading@11:     .priv_data_size    = sizeof(MXFContext),
yading@11:     .audio_codec       = AV_CODEC_ID_PCM_S16LE,
yading@11:     .video_codec       = AV_CODEC_ID_MPEG2VIDEO,
yading@11:     .write_header      = mxf_write_header,
yading@11:     .write_packet      = mxf_write_packet,
yading@11:     .write_trailer     = mxf_write_footer,
yading@11:     .flags             = AVFMT_NOTIMESTAMPS,
yading@11:     .interleave_packet = mxf_interleave,
yading@11: };
yading@11: 
yading@11: AVOutputFormat ff_mxf_d10_muxer = {
yading@11:     .name              = "mxf_d10",
yading@11:     .long_name         = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format) D-10 Mapping"),
yading@11:     .mime_type         = "application/mxf",
yading@11:     .priv_data_size    = sizeof(MXFContext),
yading@11:     .audio_codec       = AV_CODEC_ID_PCM_S16LE,
yading@11:     .video_codec       = AV_CODEC_ID_MPEG2VIDEO,
yading@11:     .write_header      = mxf_write_header,
yading@11:     .write_packet      = mxf_write_packet,
yading@11:     .write_trailer     = mxf_write_footer,
yading@11:     .flags             = AVFMT_NOTIMESTAMPS,
yading@11:     .interleave_packet = mxf_interleave,
yading@11: };