yading@10: /*
yading@10:  * ffmpeg option parsing
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: #include <stdint.h>
yading@10: 
yading@10: #include "ffmpeg.h"
yading@10: #include "cmdutils.h"
yading@10: 
yading@10: #include "libavformat/avformat.h"
yading@10: 
yading@10: #include "libavcodec/avcodec.h"
yading@10: 
yading@10: #include "libavfilter/avfilter.h"
yading@10: 
yading@10: #include "libavutil/avassert.h"
yading@10: #include "libavutil/avstring.h"
yading@10: #include "libavutil/avutil.h"
yading@10: #include "libavutil/channel_layout.h"
yading@10: #include "libavutil/intreadwrite.h"
yading@10: #include "libavutil/fifo.h"
yading@10: #include "libavutil/mathematics.h"
yading@10: #include "libavutil/opt.h"
yading@10: #include "libavutil/parseutils.h"
yading@10: #include "libavutil/pixdesc.h"
yading@10: #include "libavutil/pixfmt.h"
yading@10: 
yading@10: #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
yading@10: {\
yading@10:     int i, ret;\
yading@10:     for (i = 0; i < o->nb_ ## name; i++) {\
yading@10:         char *spec = o->name[i].specifier;\
yading@10:         if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
yading@10:             outvar = o->name[i].u.type;\
yading@10:         else if (ret < 0)\
yading@10:             exit(1);\
yading@10:     }\
yading@10: }
yading@10: 
yading@10: #define MATCH_PER_TYPE_OPT(name, type, outvar, fmtctx, mediatype)\
yading@10: {\
yading@10:     int i;\
yading@10:     for (i = 0; i < o->nb_ ## name; i++) {\
yading@10:         char *spec = o->name[i].specifier;\
yading@10:         if (!strcmp(spec, mediatype))\
yading@10:             outvar = o->name[i].u.type;\
yading@10:     }\
yading@10: }
yading@10: char *vstats_filename;
yading@10: 
yading@10: float audio_drift_threshold = 0.1;
yading@10: float dts_delta_threshold   = 10;
yading@10: float dts_error_threshold   = 3600*30;
yading@10: 
yading@10: int audio_volume      = 256;
yading@10: int audio_sync_method = 0;
yading@10: int video_sync_method = VSYNC_AUTO;
yading@10: int do_deinterlace    = 0;
yading@10: int do_benchmark      = 0;
yading@10: int do_benchmark_all  = 0;
yading@10: int do_hex_dump       = 0;
yading@10: int do_pkt_dump       = 0;
yading@10: int copy_ts           = 0;
yading@10: int copy_tb           = -1;
yading@10: int debug_ts          = 0;
yading@10: int exit_on_error     = 0;
yading@10: int print_stats       = -1;
yading@10: int qp_hist           = 0;
yading@10: int stdin_interaction = 1;
yading@10: int frame_bits_per_raw_sample = 0;
yading@10: 
yading@10: 
yading@10: static int intra_only         = 0;
yading@10: static int file_overwrite     = 0;
yading@10: static int no_file_overwrite  = 0;
yading@10: static int video_discard      = 0;
yading@10: static int intra_dc_precision = 8;
yading@10: static int do_psnr            = 0;
yading@10: static int input_sync;
yading@10: 
yading@10: static int64_t recording_time = INT64_MAX;
yading@10: 
yading@10: static void uninit_options(OptionsContext *o, int is_input)
yading@10: {
yading@10:     const OptionDef *po = options;
yading@10:     int i;
yading@10: 
yading@10:     /* all OPT_SPEC and OPT_STRING can be freed in generic way */
yading@10:     while (po->name) {
yading@10:         void *dst = (uint8_t*)o + po->u.off;
yading@10: 
yading@10:         if (po->flags & OPT_SPEC) {
yading@10:             SpecifierOpt **so = dst;
yading@10:             int i, *count = (int*)(so + 1);
yading@10:             for (i = 0; i < *count; i++) {
yading@10:                 av_freep(&(*so)[i].specifier);
yading@10:                 if (po->flags & OPT_STRING)
yading@10:                     av_freep(&(*so)[i].u.str);
yading@10:             }
yading@10:             av_freep(so);
yading@10:             *count = 0;
yading@10:         } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
yading@10:             av_freep(dst);
yading@10:         po++;
yading@10:     }
yading@10: 
yading@10:     for (i = 0; i < o->nb_stream_maps; i++)
yading@10:         av_freep(&o->stream_maps[i].linklabel);
yading@10:     av_freep(&o->stream_maps);
yading@10:     av_freep(&o->audio_channel_maps);
yading@10:     av_freep(&o->streamid_map);
yading@10:     av_freep(&o->attachments);
yading@10: 
yading@10:     if (is_input)
yading@10:         recording_time = o->recording_time;
yading@10:     else
yading@10:         recording_time = INT64_MAX;
yading@10: }
yading@10: 
yading@10: static void init_options(OptionsContext *o, int is_input)
yading@10: {
yading@10:     memset(o, 0, sizeof(*o));
yading@10: 
yading@10:     if (!is_input && recording_time != INT64_MAX) {
yading@10:         o->recording_time = recording_time;
yading@10:         av_log(NULL, AV_LOG_WARNING,
yading@10:                 "-t is not an input option, keeping it for the next output;"
yading@10:                 " consider fixing your command line.\n");
yading@10:     } else
yading@10:         o->recording_time = INT64_MAX;
yading@10:     o->stop_time = INT64_MAX;
yading@10:     o->mux_max_delay  = 0.7;
yading@10:     o->limit_filesize = UINT64_MAX;
yading@10:     o->chapters_input_file = INT_MAX;
yading@10: }
yading@10: 
yading@10: /* return a copy of the input with the stream specifiers removed from the keys */
yading@10: static AVDictionary *strip_specifiers(AVDictionary *dict)
yading@10: {
yading@10:     AVDictionaryEntry *e = NULL;
yading@10:     AVDictionary    *ret = NULL;
yading@10: 
yading@10:     while ((e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
yading@10:         char *p = strchr(e->key, ':');
yading@10: 
yading@10:         if (p)
yading@10:             *p = 0;
yading@10:         av_dict_set(&ret, e->key, e->value, 0);
yading@10:         if (p)
yading@10:             *p = ':';
yading@10:     }
yading@10:     return ret;
yading@10: }
yading@10: 
yading@10: static int opt_sameq(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     av_log(NULL, AV_LOG_ERROR, "Option '%s' was removed. "
yading@10:            "If you are looking for an option to preserve the quality (which is not "
yading@10:            "what -%s was for), use -qscale 0 or an equivalent quality factor option.\n",
yading@10:            opt, opt);
yading@10:     return AVERROR(EINVAL);
yading@10: }
yading@10: 
yading@10: static int opt_video_channel(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
yading@10:     return opt_default(optctx, "channel", arg);
yading@10: }
yading@10: 
yading@10: static int opt_video_standard(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
yading@10:     return opt_default(optctx, "standard", arg);
yading@10: }
yading@10: 
yading@10: static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     return parse_option(o, "codec:a", arg, options);
yading@10: }
yading@10: 
yading@10: static int opt_video_codec(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     return parse_option(o, "codec:v", arg, options);
yading@10: }
yading@10: 
yading@10: static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     return parse_option(o, "codec:s", arg, options);
yading@10: }
yading@10: 
yading@10: static int opt_data_codec(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     return parse_option(o, "codec:d", arg, options);
yading@10: }
yading@10: 
yading@10: static int opt_map(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     StreamMap *m = NULL;
yading@10:     int i, negative = 0, file_idx;
yading@10:     int sync_file_idx = -1, sync_stream_idx = 0;
yading@10:     char *p, *sync;
yading@10:     char *map;
yading@10: 
yading@10:     if (*arg == '-') {
yading@10:         negative = 1;
yading@10:         arg++;
yading@10:     }
yading@10:     map = av_strdup(arg);
yading@10: 
yading@10:     /* parse sync stream first, just pick first matching stream */
yading@10:     if (sync = strchr(map, ',')) {
yading@10:         *sync = 0;
yading@10:         sync_file_idx = strtol(sync + 1, &sync, 0);
yading@10:         if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
yading@10:             av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
yading@10:             exit(1);
yading@10:         }
yading@10:         if (*sync)
yading@10:             sync++;
yading@10:         for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
yading@10:             if (check_stream_specifier(input_files[sync_file_idx]->ctx,
yading@10:                                        input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
yading@10:                 sync_stream_idx = i;
yading@10:                 break;
yading@10:             }
yading@10:         if (i == input_files[sync_file_idx]->nb_streams) {
yading@10:             av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
yading@10:                                        "match any streams.\n", arg);
yading@10:             exit(1);
yading@10:         }
yading@10:     }
yading@10: 
yading@10: 
yading@10:     if (map[0] == '[') {
yading@10:         /* this mapping refers to lavfi output */
yading@10:         const char *c = map + 1;
yading@10:         GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
yading@10:         m = &o->stream_maps[o->nb_stream_maps - 1];
yading@10:         m->linklabel = av_get_token(&c, "]");
yading@10:         if (!m->linklabel) {
yading@10:             av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
yading@10:             exit(1);
yading@10:         }
yading@10:     } else {
yading@10:         file_idx = strtol(map, &p, 0);
yading@10:         if (file_idx >= nb_input_files || file_idx < 0) {
yading@10:             av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
yading@10:             exit(1);
yading@10:         }
yading@10:         if (negative)
yading@10:             /* disable some already defined maps */
yading@10:             for (i = 0; i < o->nb_stream_maps; i++) {
yading@10:                 m = &o->stream_maps[i];
yading@10:                 if (file_idx == m->file_index &&
yading@10:                     check_stream_specifier(input_files[m->file_index]->ctx,
yading@10:                                            input_files[m->file_index]->ctx->streams[m->stream_index],
yading@10:                                            *p == ':' ? p + 1 : p) > 0)
yading@10:                     m->disabled = 1;
yading@10:             }
yading@10:         else
yading@10:             for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
yading@10:                 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
yading@10:                             *p == ':' ? p + 1 : p) <= 0)
yading@10:                     continue;
yading@10:                 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
yading@10:                 m = &o->stream_maps[o->nb_stream_maps - 1];
yading@10: 
yading@10:                 m->file_index   = file_idx;
yading@10:                 m->stream_index = i;
yading@10: 
yading@10:                 if (sync_file_idx >= 0) {
yading@10:                     m->sync_file_index   = sync_file_idx;
yading@10:                     m->sync_stream_index = sync_stream_idx;
yading@10:                 } else {
yading@10:                     m->sync_file_index   = file_idx;
yading@10:                     m->sync_stream_index = i;
yading@10:                 }
yading@10:             }
yading@10:     }
yading@10: 
yading@10:     if (!m) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
yading@10:         exit(1);
yading@10:     }
yading@10: 
yading@10:     av_freep(&map);
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static int opt_attach(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     GROW_ARRAY(o->attachments, o->nb_attachments);
yading@10:     o->attachments[o->nb_attachments - 1] = arg;
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static int opt_map_channel(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     int n;
yading@10:     AVStream *st;
yading@10:     AudioChannelMap *m;
yading@10: 
yading@10:     GROW_ARRAY(o->audio_channel_maps, o->nb_audio_channel_maps);
yading@10:     m = &o->audio_channel_maps[o->nb_audio_channel_maps - 1];
yading@10: 
yading@10:     /* muted channel syntax */
yading@10:     n = sscanf(arg, "%d:%d.%d", &m->channel_idx, &m->ofile_idx, &m->ostream_idx);
yading@10:     if ((n == 1 || n == 3) && m->channel_idx == -1) {
yading@10:         m->file_idx = m->stream_idx = -1;
yading@10:         if (n == 1)
yading@10:             m->ofile_idx = m->ostream_idx = -1;
yading@10:         return 0;
yading@10:     }
yading@10: 
yading@10:     /* normal syntax */
yading@10:     n = sscanf(arg, "%d.%d.%d:%d.%d",
yading@10:                &m->file_idx,  &m->stream_idx, &m->channel_idx,
yading@10:                &m->ofile_idx, &m->ostream_idx);
yading@10: 
yading@10:     if (n != 3 && n != 5) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "Syntax error, mapchan usage: "
yading@10:                "[file.stream.channel|-1][:syncfile:syncstream]\n");
yading@10:         exit(1);
yading@10:     }
yading@10: 
yading@10:     if (n != 5) // only file.stream.channel specified
yading@10:         m->ofile_idx = m->ostream_idx = -1;
yading@10: 
yading@10:     /* check input */
yading@10:     if (m->file_idx < 0 || m->file_idx >= nb_input_files) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file index: %d\n",
yading@10:                m->file_idx);
yading@10:         exit(1);
yading@10:     }
yading@10:     if (m->stream_idx < 0 ||
yading@10:         m->stream_idx >= input_files[m->file_idx]->nb_streams) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file stream index #%d.%d\n",
yading@10:                m->file_idx, m->stream_idx);
yading@10:         exit(1);
yading@10:     }
yading@10:     st = input_files[m->file_idx]->ctx->streams[m->stream_idx];
yading@10:     if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "mapchan: stream #%d.%d is not an audio stream.\n",
yading@10:                m->file_idx, m->stream_idx);
yading@10:         exit(1);
yading@10:     }
yading@10:     if (m->channel_idx < 0 || m->channel_idx >= st->codec->channels) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "mapchan: invalid audio channel #%d.%d.%d\n",
yading@10:                m->file_idx, m->stream_idx, m->channel_idx);
yading@10:         exit(1);
yading@10:     }
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: /**
yading@10:  * Parse a metadata specifier passed as 'arg' parameter.
yading@10:  * @param arg  metadata string to parse
yading@10:  * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
yading@10:  * @param index for type c/p, chapter/program index is written here
yading@10:  * @param stream_spec for type s, the stream specifier is written here
yading@10:  */
yading@10: static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
yading@10: {
yading@10:     if (*arg) {
yading@10:         *type = *arg;
yading@10:         switch (*arg) {
yading@10:         case 'g':
yading@10:             break;
yading@10:         case 's':
yading@10:             if (*(++arg) && *arg != ':') {
yading@10:                 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
yading@10:                 exit(1);
yading@10:             }
yading@10:             *stream_spec = *arg == ':' ? arg + 1 : "";
yading@10:             break;
yading@10:         case 'c':
yading@10:         case 'p':
yading@10:             if (*(++arg) == ':')
yading@10:                 *index = strtol(++arg, NULL, 0);
yading@10:             break;
yading@10:         default:
yading@10:             av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
yading@10:             exit(1);
yading@10:         }
yading@10:     } else
yading@10:         *type = 'g';
yading@10: }
yading@10: 
yading@10: static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
yading@10: {
yading@10:     AVDictionary **meta_in = NULL;
yading@10:     AVDictionary **meta_out = NULL;
yading@10:     int i, ret = 0;
yading@10:     char type_in, type_out;
yading@10:     const char *istream_spec = NULL, *ostream_spec = NULL;
yading@10:     int idx_in = 0, idx_out = 0;
yading@10: 
yading@10:     parse_meta_type(inspec,  &type_in,  &idx_in,  &istream_spec);
yading@10:     parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
yading@10: 
yading@10:     if (!ic) {
yading@10:         if (type_out == 'g' || !*outspec)
yading@10:             o->metadata_global_manual = 1;
yading@10:         if (type_out == 's' || !*outspec)
yading@10:             o->metadata_streams_manual = 1;
yading@10:         if (type_out == 'c' || !*outspec)
yading@10:             o->metadata_chapters_manual = 1;
yading@10:         return 0;
yading@10:     }
yading@10: 
yading@10:     if (type_in == 'g' || type_out == 'g')
yading@10:         o->metadata_global_manual = 1;
yading@10:     if (type_in == 's' || type_out == 's')
yading@10:         o->metadata_streams_manual = 1;
yading@10:     if (type_in == 'c' || type_out == 'c')
yading@10:         o->metadata_chapters_manual = 1;
yading@10: 
yading@10:     /* ic is NULL when just disabling automatic mappings */
yading@10:     if (!ic)
yading@10:         return 0;
yading@10: 
yading@10: #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
yading@10:     if ((index) < 0 || (index) >= (nb_elems)) {\
yading@10:         av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
yading@10:                 (desc), (index));\
yading@10:         exit(1);\
yading@10:     }
yading@10: 
yading@10: #define SET_DICT(type, meta, context, index)\
yading@10:         switch (type) {\
yading@10:         case 'g':\
yading@10:             meta = &context->metadata;\
yading@10:             break;\
yading@10:         case 'c':\
yading@10:             METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
yading@10:             meta = &context->chapters[index]->metadata;\
yading@10:             break;\
yading@10:         case 'p':\
yading@10:             METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
yading@10:             meta = &context->programs[index]->metadata;\
yading@10:             break;\
yading@10:         case 's':\
yading@10:             break; /* handled separately below */ \
yading@10:         default: av_assert0(0);\
yading@10:         }\
yading@10: 
yading@10:     SET_DICT(type_in, meta_in, ic, idx_in);
yading@10:     SET_DICT(type_out, meta_out, oc, idx_out);
yading@10: 
yading@10:     /* for input streams choose first matching stream */
yading@10:     if (type_in == 's') {
yading@10:         for (i = 0; i < ic->nb_streams; i++) {
yading@10:             if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
yading@10:                 meta_in = &ic->streams[i]->metadata;
yading@10:                 break;
yading@10:             } else if (ret < 0)
yading@10:                 exit(1);
yading@10:         }
yading@10:         if (!meta_in) {
yading@10:             av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match  any streams.\n", istream_spec);
yading@10:             exit(1);
yading@10:         }
yading@10:     }
yading@10: 
yading@10:     if (type_out == 's') {
yading@10:         for (i = 0; i < oc->nb_streams; i++) {
yading@10:             if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
yading@10:                 meta_out = &oc->streams[i]->metadata;
yading@10:                 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
yading@10:             } else if (ret < 0)
yading@10:                 exit(1);
yading@10:         }
yading@10:     } else
yading@10:         av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
yading@10: 
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static int opt_recording_timestamp(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     char buf[128];
yading@10:     int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
yading@10:     struct tm time = *gmtime((time_t*)&recording_timestamp);
yading@10:     strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time);
yading@10:     parse_option(o, "metadata", buf, options);
yading@10: 
yading@10:     av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
yading@10:                                  "tag instead.\n", opt);
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
yading@10: {
yading@10:     const AVCodecDescriptor *desc;
yading@10:     const char *codec_string = encoder ? "encoder" : "decoder";
yading@10:     AVCodec *codec;
yading@10: 
yading@10:     codec = encoder ?
yading@10:         avcodec_find_encoder_by_name(name) :
yading@10:         avcodec_find_decoder_by_name(name);
yading@10: 
yading@10:     if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
yading@10:         codec = encoder ? avcodec_find_encoder(desc->id) :
yading@10:                           avcodec_find_decoder(desc->id);
yading@10:         if (codec)
yading@10:             av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
yading@10:                    codec_string, codec->name, desc->name);
yading@10:     }
yading@10: 
yading@10:     if (!codec) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
yading@10:         exit(1);
yading@10:     }
yading@10:     if (codec->type != type) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
yading@10:         exit(1);
yading@10:     }
yading@10:     return codec;
yading@10: }
yading@10: 
yading@10: static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
yading@10: {
yading@10:     char *codec_name = NULL;
yading@10: 
yading@10:     MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
yading@10:     if (codec_name) {
yading@10:         AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
yading@10:         st->codec->codec_id = codec->id;
yading@10:         return codec;
yading@10:     } else
yading@10:         return avcodec_find_decoder(st->codec->codec_id);
yading@10: }
yading@10: 
yading@10: /* Add all the streams from the given input file to the global
yading@10:  * list of input streams. */
yading@10: static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
yading@10: {
yading@10:     int i;
yading@10:     char *next, *codec_tag = NULL;
yading@10: 
yading@10:     for (i = 0; i < ic->nb_streams; i++) {
yading@10:         AVStream *st = ic->streams[i];
yading@10:         AVCodecContext *dec = st->codec;
yading@10:         InputStream *ist = av_mallocz(sizeof(*ist));
yading@10:         char *framerate = NULL;
yading@10: 
yading@10:         if (!ist)
yading@10:             exit(1);
yading@10: 
yading@10:         GROW_ARRAY(input_streams, nb_input_streams);
yading@10:         input_streams[nb_input_streams - 1] = ist;
yading@10: 
yading@10:         ist->st = st;
yading@10:         ist->file_index = nb_input_files;
yading@10:         ist->discard = 1;
yading@10:         st->discard  = AVDISCARD_ALL;
yading@10: 
yading@10:         ist->ts_scale = 1.0;
yading@10:         MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
yading@10: 
yading@10:         MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
yading@10:         if (codec_tag) {
yading@10:             uint32_t tag = strtol(codec_tag, &next, 0);
yading@10:             if (*next)
yading@10:                 tag = AV_RL32(codec_tag);
yading@10:             st->codec->codec_tag = tag;
yading@10:         }
yading@10: 
yading@10:         ist->dec = choose_decoder(o, ic, st);
yading@10:         ist->opts = filter_codec_opts(o->g->codec_opts, ist->st->codec->codec_id, ic, st, ist->dec);
yading@10: 
yading@10:         ist->reinit_filters = -1;
yading@10:         MATCH_PER_STREAM_OPT(reinit_filters, i, ist->reinit_filters, ic, st);
yading@10: 
yading@10:         ist->filter_in_rescale_delta_last = AV_NOPTS_VALUE;
yading@10: 
yading@10:         switch (dec->codec_type) {
yading@10:         case AVMEDIA_TYPE_VIDEO:
yading@10:             if(!ist->dec)
yading@10:                 ist->dec = avcodec_find_decoder(dec->codec_id);
yading@10:             if (dec->lowres) {
yading@10:                 dec->flags |= CODEC_FLAG_EMU_EDGE;
yading@10:             }
yading@10: 
yading@10:             ist->resample_height  = dec->height;
yading@10:             ist->resample_width   = dec->width;
yading@10:             ist->resample_pix_fmt = dec->pix_fmt;
yading@10: 
yading@10:             MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
yading@10:             if (framerate && av_parse_video_rate(&ist->framerate,
yading@10:                                                  framerate) < 0) {
yading@10:                 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
yading@10:                        framerate);
yading@10:                 exit(1);
yading@10:             }
yading@10: 
yading@10:             ist->top_field_first = -1;
yading@10:             MATCH_PER_STREAM_OPT(top_field_first, i, ist->top_field_first, ic, st);
yading@10: 
yading@10:             break;
yading@10:         case AVMEDIA_TYPE_AUDIO:
yading@10:             ist->guess_layout_max = INT_MAX;
yading@10:             MATCH_PER_STREAM_OPT(guess_layout_max, i, ist->guess_layout_max, ic, st);
yading@10:             guess_input_channel_layout(ist);
yading@10: 
yading@10:             ist->resample_sample_fmt     = dec->sample_fmt;
yading@10:             ist->resample_sample_rate    = dec->sample_rate;
yading@10:             ist->resample_channels       = dec->channels;
yading@10:             ist->resample_channel_layout = dec->channel_layout;
yading@10: 
yading@10:             break;
yading@10:         case AVMEDIA_TYPE_DATA:
yading@10:         case AVMEDIA_TYPE_SUBTITLE: {
yading@10:             char *canvas_size = NULL;
yading@10:             if(!ist->dec)
yading@10:                 ist->dec = avcodec_find_decoder(dec->codec_id);
yading@10:             MATCH_PER_STREAM_OPT(fix_sub_duration, i, ist->fix_sub_duration, ic, st);
yading@10:             MATCH_PER_STREAM_OPT(canvas_sizes, str, canvas_size, ic, st);
yading@10:             if (canvas_size &&
yading@10:                 av_parse_video_size(&dec->width, &dec->height, canvas_size) < 0) {
yading@10:                 av_log(NULL, AV_LOG_FATAL, "Invalid canvas size: %s.\n", canvas_size);
yading@10:                 exit(1);
yading@10:             }
yading@10:             break;
yading@10:         }
yading@10:         case AVMEDIA_TYPE_ATTACHMENT:
yading@10:         case AVMEDIA_TYPE_UNKNOWN:
yading@10:             break;
yading@10:         default:
yading@10:             abort();
yading@10:         }
yading@10:     }
yading@10: }
yading@10: 
yading@10: static void assert_file_overwrite(const char *filename)
yading@10: {
yading@10:     if ((!file_overwrite || no_file_overwrite) &&
yading@10:         (strchr(filename, ':') == NULL || filename[1] == ':' ||
yading@10:          av_strstart(filename, "file:", NULL))) {
yading@10:         if (avio_check(filename, 0) == 0) {
yading@10:             if (stdin_interaction && (!no_file_overwrite || file_overwrite)) {
yading@10:                 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
yading@10:                 fflush(stderr);
yading@10:                 term_exit();
yading@10:                 signal(SIGINT, SIG_DFL);
yading@10:                 if (!read_yesno()) {
yading@10:                     av_log(NULL, AV_LOG_FATAL, "Not overwriting - exiting\n");
yading@10:                     exit(1);
yading@10:                 }
yading@10:                 term_init();
yading@10:             }
yading@10:             else {
yading@10:                 av_log(NULL, AV_LOG_FATAL, "File '%s' already exists. Exiting.\n", filename);
yading@10:                 exit(1);
yading@10:             }
yading@10:         }
yading@10:     }
yading@10: }
yading@10: 
yading@10: static void dump_attachment(AVStream *st, const char *filename)
yading@10: {
yading@10:     int ret;
yading@10:     AVIOContext *out = NULL;
yading@10:     AVDictionaryEntry *e;
yading@10: 
yading@10:     if (!st->codec->extradata_size) {
yading@10:         av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
yading@10:                nb_input_files - 1, st->index);
yading@10:         return;
yading@10:     }
yading@10:     if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
yading@10:         filename = e->value;
yading@10:     if (!*filename) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
yading@10:                "in stream #%d:%d.\n", nb_input_files - 1, st->index);
yading@10:         exit(1);
yading@10:     }
yading@10: 
yading@10:     assert_file_overwrite(filename);
yading@10: 
yading@10:     if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
yading@10:                filename);
yading@10:         exit(1);
yading@10:     }
yading@10: 
yading@10:     avio_write(out, st->codec->extradata, st->codec->extradata_size);
yading@10:     avio_flush(out);
yading@10:     avio_close(out);
yading@10: }
yading@10: 
yading@10: static int open_input_file(OptionsContext *o, const char *filename)
yading@10: {
yading@10:     InputFile *f;
yading@10:     AVFormatContext *ic;
yading@10:     AVInputFormat *file_iformat = NULL;
yading@10:     int err, i, ret;
yading@10:     int64_t timestamp;
yading@10:     uint8_t buf[128];
yading@10:     AVDictionary **opts;
yading@10:     AVDictionary *unused_opts = NULL;
yading@10:     AVDictionaryEntry *e = NULL;
yading@10:     int orig_nb_streams;                     // number of streams before avformat_find_stream_info
yading@10:     char *   video_codec_name = NULL;
yading@10:     char *   audio_codec_name = NULL;
yading@10:     char *subtitle_codec_name = NULL;
yading@10: 
yading@10:     if (o->format) {
yading@10:         if (!(file_iformat = av_find_input_format(o->format))) {
yading@10:             av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
yading@10:             exit(1);
yading@10:         }
yading@10:     }
yading@10: 
yading@10:     if (!strcmp(filename, "-"))
yading@10:         filename = "pipe:";
yading@10: 
yading@10:     stdin_interaction &= strncmp(filename, "pipe:", 5) &&
yading@10:                          strcmp(filename, "/dev/stdin");
yading@10: 
yading@10:     /* get default parameters from command line */
yading@10:     ic = avformat_alloc_context();
yading@10:     if (!ic) {
yading@10:         print_error(filename, AVERROR(ENOMEM));
yading@10:         exit(1);
yading@10:     }
yading@10:     if (o->nb_audio_sample_rate) {
yading@10:         snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
yading@10:         av_dict_set(&o->g->format_opts, "sample_rate", buf, 0);
yading@10:     }
yading@10:     if (o->nb_audio_channels) {
yading@10:         /* because we set audio_channels based on both the "ac" and
yading@10:          * "channel_layout" options, we need to check that the specified
yading@10:          * demuxer actually has the "channels" option before setting it */
yading@10:         if (file_iformat && file_iformat->priv_class &&
yading@10:             av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
yading@10:                         AV_OPT_SEARCH_FAKE_OBJ)) {
yading@10:             snprintf(buf, sizeof(buf), "%d",
yading@10:                      o->audio_channels[o->nb_audio_channels - 1].u.i);
yading@10:             av_dict_set(&o->g->format_opts, "channels", buf, 0);
yading@10:         }
yading@10:     }
yading@10:     if (o->nb_frame_rates) {
yading@10:         /* set the format-level framerate option;
yading@10:          * this is important for video grabbers, e.g. x11 */
yading@10:         if (file_iformat && file_iformat->priv_class &&
yading@10:             av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
yading@10:                         AV_OPT_SEARCH_FAKE_OBJ)) {
yading@10:             av_dict_set(&o->g->format_opts, "framerate",
yading@10:                         o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
yading@10:         }
yading@10:     }
yading@10:     if (o->nb_frame_sizes) {
yading@10:         av_dict_set(&o->g->format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
yading@10:     }
yading@10:     if (o->nb_frame_pix_fmts)
yading@10:         av_dict_set(&o->g->format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
yading@10: 
yading@10:     MATCH_PER_TYPE_OPT(codec_names, str,    video_codec_name, ic, "v");
yading@10:     MATCH_PER_TYPE_OPT(codec_names, str,    audio_codec_name, ic, "a");
yading@10:     MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, ic, "s");
yading@10: 
yading@10:     ic->video_codec_id   = video_codec_name ?
yading@10:         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0)->id : AV_CODEC_ID_NONE;
yading@10:     ic->audio_codec_id   = audio_codec_name ?
yading@10:         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0)->id : AV_CODEC_ID_NONE;
yading@10:     ic->subtitle_codec_id= subtitle_codec_name ?
yading@10:         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0)->id : AV_CODEC_ID_NONE;
yading@10:     ic->flags |= AVFMT_FLAG_NONBLOCK;
yading@10:     ic->interrupt_callback = int_cb;
yading@10: 
yading@10:     /* open the input file with generic avformat function */
yading@10:     err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
yading@10:     if (err < 0) {
yading@10:         print_error(filename, err);
yading@10:         exit(1);
yading@10:     }
yading@10:     assert_avoptions(o->g->format_opts);
yading@10: 
yading@10:     /* apply forced codec ids */
yading@10:     for (i = 0; i < ic->nb_streams; i++)
yading@10:         choose_decoder(o, ic, ic->streams[i]);
yading@10: 
yading@10:     /* Set AVCodecContext options for avformat_find_stream_info */
yading@10:     opts = setup_find_stream_info_opts(ic, o->g->codec_opts);
yading@10:     orig_nb_streams = ic->nb_streams;
yading@10: 
yading@10:     /* If not enough info to get the stream parameters, we decode the
yading@10:        first frames to get it. (used in mpeg case for example) */
yading@10:     ret = avformat_find_stream_info(ic, opts);
yading@10:     if (ret < 0) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
yading@10:         avformat_close_input(&ic);
yading@10:         exit(1);
yading@10:     }
yading@10: 
yading@10:     timestamp = o->start_time;
yading@10:     /* add the stream start time */
yading@10:     if (ic->start_time != AV_NOPTS_VALUE)
yading@10:         timestamp += ic->start_time;
yading@10: 
yading@10:     /* if seeking requested, we execute it */
yading@10:     if (o->start_time != 0) {
yading@10:         ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, timestamp, 0);
yading@10:         if (ret < 0) {
yading@10:             av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
yading@10:                    filename, (double)timestamp / AV_TIME_BASE);
yading@10:         }
yading@10:     }
yading@10: 
yading@10:     /* update the current parameters so that they match the one of the input stream */
yading@10:     add_input_streams(o, ic);
yading@10: 
yading@10:     /* dump the file content */
yading@10:     av_dump_format(ic, nb_input_files, filename, 0);
yading@10: 
yading@10:     GROW_ARRAY(input_files, nb_input_files);
yading@10:     f = av_mallocz(sizeof(*f));
yading@10:     if (!f)
yading@10:         exit(1);
yading@10:     input_files[nb_input_files - 1] = f;
yading@10: 
yading@10:     f->ctx        = ic;
yading@10:     f->ist_index  = nb_input_streams - ic->nb_streams;
yading@10:     f->ts_offset  = o->input_ts_offset - (copy_ts ? 0 : timestamp);
yading@10:     f->nb_streams = ic->nb_streams;
yading@10:     f->rate_emu   = o->rate_emu;
yading@10: 
yading@10:     /* check if all codec options have been used */
yading@10:     unused_opts = strip_specifiers(o->g->codec_opts);
yading@10:     for (i = f->ist_index; i < nb_input_streams; i++) {
yading@10:         e = NULL;
yading@10:         while ((e = av_dict_get(input_streams[i]->opts, "", e,
yading@10:                                 AV_DICT_IGNORE_SUFFIX)))
yading@10:             av_dict_set(&unused_opts, e->key, NULL, 0);
yading@10:     }
yading@10: 
yading@10:     e = NULL;
yading@10:     while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
yading@10:         const AVClass *class = avcodec_get_class();
yading@10:         const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
yading@10:                                              AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
yading@10:         if (!option)
yading@10:             continue;
yading@10:         if (!(option->flags & AV_OPT_FLAG_DECODING_PARAM)) {
yading@10:             av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
yading@10:                    "input file #%d (%s) is not a decoding option.\n", e->key,
yading@10:                    option->help ? option->help : "", nb_input_files - 1,
yading@10:                    filename);
yading@10:             exit(1);
yading@10:         }
yading@10: 
yading@10:         av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
yading@10:                "input file #%d (%s) has not been used for any stream. The most "
yading@10:                "likely reason is either wrong type (e.g. a video option with "
yading@10:                "no video streams) or that it is a private option of some decoder "
yading@10:                "which was not actually used for any stream.\n", e->key,
yading@10:                option->help ? option->help : "", nb_input_files - 1, filename);
yading@10:     }
yading@10:     av_dict_free(&unused_opts);
yading@10: 
yading@10:     for (i = 0; i < o->nb_dump_attachment; i++) {
yading@10:         int j;
yading@10: 
yading@10:         for (j = 0; j < ic->nb_streams; j++) {
yading@10:             AVStream *st = ic->streams[j];
yading@10: 
yading@10:             if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
yading@10:                 dump_attachment(st, o->dump_attachment[i].u.str);
yading@10:         }
yading@10:     }
yading@10: 
yading@10:     for (i = 0; i < orig_nb_streams; i++)
yading@10:         av_dict_free(&opts[i]);
yading@10:     av_freep(&opts);
yading@10: 
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static uint8_t *get_line(AVIOContext *s)
yading@10: {
yading@10:     AVIOContext *line;
yading@10:     uint8_t *buf;
yading@10:     char c;
yading@10: 
yading@10:     if (avio_open_dyn_buf(&line) < 0) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
yading@10:         exit(1);
yading@10:     }
yading@10: 
yading@10:     while ((c = avio_r8(s)) && c != '\n')
yading@10:         avio_w8(line, c);
yading@10:     avio_w8(line, 0);
yading@10:     avio_close_dyn_buf(line, &buf);
yading@10: 
yading@10:     return buf;
yading@10: }
yading@10: 
yading@10: static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
yading@10: {
yading@10:     int i, ret = 1;
yading@10:     char filename[1000];
yading@10:     const char *base[3] = { getenv("AVCONV_DATADIR"),
yading@10:                             getenv("HOME"),
yading@10:                             AVCONV_DATADIR,
yading@10:                             };
yading@10: 
yading@10:     for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
yading@10:         if (!base[i])
yading@10:             continue;
yading@10:         if (codec_name) {
yading@10:             snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
yading@10:                      i != 1 ? "" : "/.avconv", codec_name, preset_name);
yading@10:             ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
yading@10:         }
yading@10:         if (ret) {
yading@10:             snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
yading@10:                      i != 1 ? "" : "/.avconv", preset_name);
yading@10:             ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
yading@10:         }
yading@10:     }
yading@10:     return ret;
yading@10: }
yading@10: 
yading@10: static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
yading@10: {
yading@10:     char *codec_name = NULL;
yading@10: 
yading@10:     MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
yading@10:     if (!codec_name) {
yading@10:         ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
yading@10:                                                   NULL, ost->st->codec->codec_type);
yading@10:         ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
yading@10:     } else if (!strcmp(codec_name, "copy"))
yading@10:         ost->stream_copy = 1;
yading@10:     else {
yading@10:         ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
yading@10:         ost->st->codec->codec_id = ost->enc->id;
yading@10:     }
yading@10: }
yading@10: 
yading@10: static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type, int source_index)
yading@10: {
yading@10:     OutputStream *ost;
yading@10:     AVStream *st = avformat_new_stream(oc, NULL);
yading@10:     int idx      = oc->nb_streams - 1, ret = 0;
yading@10:     char *bsf = NULL, *next, *codec_tag = NULL;
yading@10:     AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
yading@10:     double qscale = -1;
yading@10:     int i;
yading@10: 
yading@10:     if (!st) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
yading@10:         exit(1);
yading@10:     }
yading@10: 
yading@10:     if (oc->nb_streams - 1 < o->nb_streamid_map)
yading@10:         st->id = o->streamid_map[oc->nb_streams - 1];
yading@10: 
yading@10:     GROW_ARRAY(output_streams, nb_output_streams);
yading@10:     if (!(ost = av_mallocz(sizeof(*ost))))
yading@10:         exit(1);
yading@10:     output_streams[nb_output_streams - 1] = ost;
yading@10: 
yading@10:     ost->file_index = nb_output_files;
yading@10:     ost->index      = idx;
yading@10:     ost->st         = st;
yading@10:     st->codec->codec_type = type;
yading@10:     choose_encoder(o, oc, ost);
yading@10:     if (ost->enc) {
yading@10:         AVIOContext *s = NULL;
yading@10:         char *buf = NULL, *arg = NULL, *preset = NULL;
yading@10: 
yading@10:         ost->opts  = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
yading@10: 
yading@10:         MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
yading@10:         if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
yading@10:             do  {
yading@10:                 buf = get_line(s);
yading@10:                 if (!buf[0] || buf[0] == '#') {
yading@10:                     av_free(buf);
yading@10:                     continue;
yading@10:                 }
yading@10:                 if (!(arg = strchr(buf, '='))) {
yading@10:                     av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
yading@10:                     exit(1);
yading@10:                 }
yading@10:                 *arg++ = 0;
yading@10:                 av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
yading@10:                 av_free(buf);
yading@10:             } while (!s->eof_reached);
yading@10:             avio_close(s);
yading@10:         }
yading@10:         if (ret) {
yading@10:             av_log(NULL, AV_LOG_FATAL,
yading@10:                    "Preset %s specified for stream %d:%d, but could not be opened.\n",
yading@10:                    preset, ost->file_index, ost->index);
yading@10:             exit(1);
yading@10:         }
yading@10:     } else {
yading@10:         ost->opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
yading@10:     }
yading@10: 
yading@10:     avcodec_get_context_defaults3(st->codec, ost->enc);
yading@10:     st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
yading@10: 
yading@10:     ost->max_frames = INT64_MAX;
yading@10:     MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
yading@10:     for (i = 0; i<o->nb_max_frames; i++) {
yading@10:         char *p = o->max_frames[i].specifier;
yading@10:         if (!*p && type != AVMEDIA_TYPE_VIDEO) {
yading@10:             av_log(NULL, AV_LOG_WARNING, "Applying unspecific -frames to non video streams, maybe you meant -vframes ?\n");
yading@10:             break;
yading@10:         }
yading@10:     }
yading@10: 
yading@10:     ost->copy_prior_start = -1;
yading@10:     MATCH_PER_STREAM_OPT(copy_prior_start, i, ost->copy_prior_start, oc ,st);
yading@10: 
yading@10:     MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
yading@10:     while (bsf) {
yading@10:         if (next = strchr(bsf, ','))
yading@10:             *next++ = 0;
yading@10:         if (!(bsfc = av_bitstream_filter_init(bsf))) {
yading@10:             av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
yading@10:             exit(1);
yading@10:         }
yading@10:         if (bsfc_prev)
yading@10:             bsfc_prev->next = bsfc;
yading@10:         else
yading@10:             ost->bitstream_filters = bsfc;
yading@10: 
yading@10:         bsfc_prev = bsfc;
yading@10:         bsf       = next;
yading@10:     }
yading@10: 
yading@10:     MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
yading@10:     if (codec_tag) {
yading@10:         uint32_t tag = strtol(codec_tag, &next, 0);
yading@10:         if (*next)
yading@10:             tag = AV_RL32(codec_tag);
yading@10:         st->codec->codec_tag = tag;
yading@10:     }
yading@10: 
yading@10:     MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
yading@10:     if (qscale >= 0) {
yading@10:         st->codec->flags |= CODEC_FLAG_QSCALE;
yading@10:         st->codec->global_quality = FF_QP2LAMBDA * qscale;
yading@10:     }
yading@10: 
yading@10:     if (oc->oformat->flags & AVFMT_GLOBALHEADER)
yading@10:         st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
yading@10: 
yading@10:     av_opt_get_int(o->g->sws_opts, "sws_flags", 0, &ost->sws_flags);
yading@10: 
yading@10:     av_dict_copy(&ost->swr_opts, o->g->swr_opts, 0);
yading@10:     if (ost->enc && av_get_exact_bits_per_sample(ost->enc->id) == 24)
yading@10:         av_dict_set(&ost->swr_opts, "output_sample_bits", "24", 0);
yading@10: 
yading@10:     av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
yading@10: 
yading@10:     ost->source_index = source_index;
yading@10:     if (source_index >= 0) {
yading@10:         ost->sync_ist = input_streams[source_index];
yading@10:         input_streams[source_index]->discard = 0;
yading@10:         input_streams[source_index]->st->discard = AVDISCARD_NONE;
yading@10:     }
yading@10: 
yading@10:     return ost;
yading@10: }
yading@10: 
yading@10: static void parse_matrix_coeffs(uint16_t *dest, const char *str)
yading@10: {
yading@10:     int i;
yading@10:     const char *p = str;
yading@10:     for (i = 0;; i++) {
yading@10:         dest[i] = atoi(p);
yading@10:         if (i == 63)
yading@10:             break;
yading@10:         p = strchr(p, ',');
yading@10:         if (!p) {
yading@10:             av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
yading@10:             exit(1);
yading@10:         }
yading@10:         p++;
yading@10:     }
yading@10: }
yading@10: 
yading@10: /* read file contents into a string */
yading@10: static uint8_t *read_file(const char *filename)
yading@10: {
yading@10:     AVIOContext *pb      = NULL;
yading@10:     AVIOContext *dyn_buf = NULL;
yading@10:     int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
yading@10:     uint8_t buf[1024], *str;
yading@10: 
yading@10:     if (ret < 0) {
yading@10:         av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
yading@10:         return NULL;
yading@10:     }
yading@10: 
yading@10:     ret = avio_open_dyn_buf(&dyn_buf);
yading@10:     if (ret < 0) {
yading@10:         avio_closep(&pb);
yading@10:         return NULL;
yading@10:     }
yading@10:     while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
yading@10:         avio_write(dyn_buf, buf, ret);
yading@10:     avio_w8(dyn_buf, 0);
yading@10:     avio_closep(&pb);
yading@10: 
yading@10:     ret = avio_close_dyn_buf(dyn_buf, &str);
yading@10:     if (ret < 0)
yading@10:         return NULL;
yading@10:     return str;
yading@10: }
yading@10: 
yading@10: static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
yading@10:                              OutputStream *ost)
yading@10: {
yading@10:     AVStream *st = ost->st;
yading@10:     char *filter = NULL, *filter_script = NULL;
yading@10: 
yading@10:     MATCH_PER_STREAM_OPT(filter_scripts, str, filter_script, oc, st);
yading@10:     MATCH_PER_STREAM_OPT(filters, str, filter, oc, st);
yading@10: 
yading@10:     if (filter_script && filter) {
yading@10:         av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
yading@10:                "output stream #%d:%d.\n", nb_output_files, st->index);
yading@10:         exit(1);
yading@10:     }
yading@10: 
yading@10:     if (filter_script)
yading@10:         return read_file(filter_script);
yading@10:     else if (filter)
yading@10:         return av_strdup(filter);
yading@10: 
yading@10:     return av_strdup(st->codec->codec_type == AVMEDIA_TYPE_VIDEO ?
yading@10:                      "null" : "anull");
yading@10: }
yading@10: 
yading@10: static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
yading@10: {
yading@10:     AVStream *st;
yading@10:     OutputStream *ost;
yading@10:     AVCodecContext *video_enc;
yading@10:     char *frame_rate = NULL, *frame_aspect_ratio = NULL;
yading@10: 
yading@10:     ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
yading@10:     st  = ost->st;
yading@10:     video_enc = st->codec;
yading@10: 
yading@10:     MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
yading@10:     if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
yading@10:         exit(1);
yading@10:     }
yading@10: 
yading@10:     MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
yading@10:     if (frame_aspect_ratio) {
yading@10:         AVRational q;
yading@10:         if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
yading@10:             q.num <= 0 || q.den <= 0) {
yading@10:             av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
yading@10:             exit(1);
yading@10:         }
yading@10:         ost->frame_aspect_ratio = q;
yading@10:     }
yading@10: 
yading@10:     if (!ost->stream_copy) {
yading@10:         const char *p = NULL;
yading@10:         char *frame_size = NULL;
yading@10:         char *frame_pix_fmt = NULL;
yading@10:         char *intra_matrix = NULL, *inter_matrix = NULL;
yading@10:         int do_pass = 0;
yading@10:         int i;
yading@10: 
yading@10:         MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
yading@10:         if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
yading@10:             av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
yading@10:             exit(1);
yading@10:         }
yading@10: 
yading@10:         video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
yading@10:         MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
yading@10:         if (frame_pix_fmt && *frame_pix_fmt == '+') {
yading@10:             ost->keep_pix_fmt = 1;
yading@10:             if (!*++frame_pix_fmt)
yading@10:                 frame_pix_fmt = NULL;
yading@10:         }
yading@10:         if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
yading@10:             av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
yading@10:             exit(1);
yading@10:         }
yading@10:         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
yading@10: 
yading@10:         if (intra_only)
yading@10:             video_enc->gop_size = 0;
yading@10:         MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
yading@10:         if (intra_matrix) {
yading@10:             if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
yading@10:                 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
yading@10:                 exit(1);
yading@10:             }
yading@10:             parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
yading@10:         }
yading@10:         MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
yading@10:         if (inter_matrix) {
yading@10:             if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
yading@10:                 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
yading@10:                 exit(1);
yading@10:             }
yading@10:             parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
yading@10:         }
yading@10: 
yading@10:         MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
yading@10:         for (i = 0; p; i++) {
yading@10:             int start, end, q;
yading@10:             int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
yading@10:             if (e != 3) {
yading@10:                 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
yading@10:                 exit(1);
yading@10:             }
yading@10:             /* FIXME realloc failure */
yading@10:             video_enc->rc_override =
yading@10:                 av_realloc(video_enc->rc_override,
yading@10:                            sizeof(RcOverride) * (i + 1));
yading@10:             video_enc->rc_override[i].start_frame = start;
yading@10:             video_enc->rc_override[i].end_frame   = end;
yading@10:             if (q > 0) {
yading@10:                 video_enc->rc_override[i].qscale         = q;
yading@10:                 video_enc->rc_override[i].quality_factor = 1.0;
yading@10:             }
yading@10:             else {
yading@10:                 video_enc->rc_override[i].qscale         = 0;
yading@10:                 video_enc->rc_override[i].quality_factor = -q/100.0;
yading@10:             }
yading@10:             p = strchr(p, '/');
yading@10:             if (p) p++;
yading@10:         }
yading@10:         video_enc->rc_override_count = i;
yading@10:         video_enc->intra_dc_precision = intra_dc_precision - 8;
yading@10: 
yading@10:         if (do_psnr)
yading@10:             video_enc->flags|= CODEC_FLAG_PSNR;
yading@10: 
yading@10:         /* two pass mode */
yading@10:         MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
yading@10:         if (do_pass) {
yading@10:             if (do_pass & 1) {
yading@10:                 video_enc->flags |= CODEC_FLAG_PASS1;
yading@10:                 av_dict_set(&ost->opts, "flags", "+pass1", AV_DICT_APPEND);
yading@10:             }
yading@10:             if (do_pass & 2) {
yading@10:                 video_enc->flags |= CODEC_FLAG_PASS2;
yading@10:                 av_dict_set(&ost->opts, "flags", "+pass2", AV_DICT_APPEND);
yading@10:             }
yading@10:         }
yading@10: 
yading@10:         MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
yading@10:         if (ost->logfile_prefix &&
yading@10:             !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
yading@10:             exit(1);
yading@10: 
yading@10:         MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
yading@10:         if (ost->forced_keyframes)
yading@10:             ost->forced_keyframes = av_strdup(ost->forced_keyframes);
yading@10: 
yading@10:         MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
yading@10: 
yading@10:         ost->top_field_first = -1;
yading@10:         MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
yading@10: 
yading@10: 
yading@10:         ost->avfilter = get_ost_filters(o, oc, ost);
yading@10:         if (!ost->avfilter)
yading@10:             exit(1);
yading@10:     } else {
yading@10:         MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
yading@10:     }
yading@10: 
yading@10:     return ost;
yading@10: }
yading@10: 
yading@10: static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
yading@10: {
yading@10:     int n;
yading@10:     AVStream *st;
yading@10:     OutputStream *ost;
yading@10:     AVCodecContext *audio_enc;
yading@10: 
yading@10:     ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO, source_index);
yading@10:     st  = ost->st;
yading@10: 
yading@10:     audio_enc = st->codec;
yading@10:     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
yading@10: 
yading@10:     if (!ost->stream_copy) {
yading@10:         char *sample_fmt = NULL;
yading@10: 
yading@10:         MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
yading@10: 
yading@10:         MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
yading@10:         if (sample_fmt &&
yading@10:             (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
yading@10:             av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
yading@10:             exit(1);
yading@10:         }
yading@10: 
yading@10:         MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
yading@10: 
yading@10:         ost->avfilter = get_ost_filters(o, oc, ost);
yading@10:         if (!ost->avfilter)
yading@10:             exit(1);
yading@10: 
yading@10:         /* check for channel mapping for this audio stream */
yading@10:         for (n = 0; n < o->nb_audio_channel_maps; n++) {
yading@10:             AudioChannelMap *map = &o->audio_channel_maps[n];
yading@10:             InputStream *ist = input_streams[ost->source_index];
yading@10:             if ((map->channel_idx == -1 || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) &&
yading@10:                 (map->ofile_idx   == -1 || ost->file_index == map->ofile_idx) &&
yading@10:                 (map->ostream_idx == -1 || ost->st->index  == map->ostream_idx)) {
yading@10:                 if (ost->audio_channels_mapped < FF_ARRAY_ELEMS(ost->audio_channels_map))
yading@10:                     ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
yading@10:                 else
yading@10:                     av_log(NULL, AV_LOG_FATAL, "Max channel mapping for output %d.%d reached\n",
yading@10:                            ost->file_index, ost->st->index);
yading@10:             }
yading@10:         }
yading@10:     }
yading@10: 
yading@10:     return ost;
yading@10: }
yading@10: 
yading@10: static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
yading@10: {
yading@10:     OutputStream *ost;
yading@10: 
yading@10:     ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA, source_index);
yading@10:     if (!ost->stream_copy) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
yading@10:         exit(1);
yading@10:     }
yading@10: 
yading@10:     return ost;
yading@10: }
yading@10: 
yading@10: static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
yading@10: {
yading@10:     OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT, source_index);
yading@10:     ost->stream_copy = 1;
yading@10:     ost->finished    = 1;
yading@10:     return ost;
yading@10: }
yading@10: 
yading@10: static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
yading@10: {
yading@10:     AVStream *st;
yading@10:     OutputStream *ost;
yading@10:     AVCodecContext *subtitle_enc;
yading@10: 
yading@10:     ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE, source_index);
yading@10:     st  = ost->st;
yading@10:     subtitle_enc = st->codec;
yading@10: 
yading@10:     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
yading@10: 
yading@10:     MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc, st);
yading@10: 
yading@10:     if (!ost->stream_copy) {
yading@10:         char *frame_size = NULL;
yading@10: 
yading@10:         MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
yading@10:         if (frame_size && av_parse_video_size(&subtitle_enc->width, &subtitle_enc->height, frame_size) < 0) {
yading@10:             av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
yading@10:             exit(1);
yading@10:         }
yading@10:     }
yading@10: 
yading@10:     return ost;
yading@10: }
yading@10: 
yading@10: /* arg format is "output-stream-index:streamid-value". */
yading@10: static int opt_streamid(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     int idx;
yading@10:     char *p;
yading@10:     char idx_str[16];
yading@10: 
yading@10:     av_strlcpy(idx_str, arg, sizeof(idx_str));
yading@10:     p = strchr(idx_str, ':');
yading@10:     if (!p) {
yading@10:         av_log(NULL, AV_LOG_FATAL,
yading@10:                "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
yading@10:                arg, opt);
yading@10:         exit(1);
yading@10:     }
yading@10:     *p++ = '\0';
yading@10:     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
yading@10:     o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
yading@10:     o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
yading@10: {
yading@10:     AVFormatContext *is = ifile->ctx;
yading@10:     AVFormatContext *os = ofile->ctx;
yading@10:     AVChapter **tmp;
yading@10:     int i;
yading@10: 
yading@10:     tmp = av_realloc_f(os->chapters, is->nb_chapters + os->nb_chapters, sizeof(*os->chapters));
yading@10:     if (!tmp)
yading@10:         return AVERROR(ENOMEM);
yading@10:     os->chapters = tmp;
yading@10: 
yading@10:     for (i = 0; i < is->nb_chapters; i++) {
yading@10:         AVChapter *in_ch = is->chapters[i], *out_ch;
yading@10:         int64_t ts_off   = av_rescale_q(ofile->start_time - ifile->ts_offset,
yading@10:                                        AV_TIME_BASE_Q, in_ch->time_base);
yading@10:         int64_t rt       = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
yading@10:                            av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
yading@10: 
yading@10: 
yading@10:         if (in_ch->end < ts_off)
yading@10:             continue;
yading@10:         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
yading@10:             break;
yading@10: 
yading@10:         out_ch = av_mallocz(sizeof(AVChapter));
yading@10:         if (!out_ch)
yading@10:             return AVERROR(ENOMEM);
yading@10: 
yading@10:         out_ch->id        = in_ch->id;
yading@10:         out_ch->time_base = in_ch->time_base;
yading@10:         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
yading@10:         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
yading@10: 
yading@10:         if (copy_metadata)
yading@10:             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
yading@10: 
yading@10:         os->chapters[os->nb_chapters++] = out_ch;
yading@10:     }
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
yading@10: {
yading@10:     int i, err;
yading@10:     AVFormatContext *ic = avformat_alloc_context();
yading@10: 
yading@10:     ic->interrupt_callback = int_cb;
yading@10:     err = avformat_open_input(&ic, filename, NULL, NULL);
yading@10:     if (err < 0)
yading@10:         return err;
yading@10:     /* copy stream format */
yading@10:     for(i=0;i<ic->nb_streams;i++) {
yading@10:         AVStream *st;
yading@10:         OutputStream *ost;
yading@10:         AVCodec *codec;
yading@10:         AVCodecContext *avctx;
yading@10: 
yading@10:         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
yading@10:         ost   = new_output_stream(o, s, codec->type, -1);
yading@10:         st    = ost->st;
yading@10:         avctx = st->codec;
yading@10:         ost->enc = codec;
yading@10: 
yading@10:         // FIXME: a more elegant solution is needed
yading@10:         memcpy(st, ic->streams[i], sizeof(AVStream));
yading@10:         st->cur_dts = 0;
yading@10:         st->info = av_malloc(sizeof(*st->info));
yading@10:         memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
yading@10:         st->codec= avctx;
yading@10:         avcodec_copy_context(st->codec, ic->streams[i]->codec);
yading@10: 
yading@10:         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
yading@10:             choose_sample_fmt(st, codec);
yading@10:         else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
yading@10:             choose_pixel_fmt(st, codec, st->codec->pix_fmt);
yading@10:     }
yading@10: 
yading@10:     /* ffserver seeking with date=... needs a date reference */
yading@10:     err = parse_option(o, "metadata", "creation_time=now", options);
yading@10: 
yading@10:     avformat_close_input(&ic);
yading@10:     return err;
yading@10: }
yading@10: 
yading@10: static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
yading@10:                                AVFormatContext *oc)
yading@10: {
yading@10:     OutputStream *ost;
yading@10: 
yading@10:     switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
yading@10:                                   ofilter->out_tmp->pad_idx)) {
yading@10:     case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc, -1); break;
yading@10:     case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc, -1); break;
yading@10:     default:
yading@10:         av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
yading@10:                "currently.\n");
yading@10:         exit(1);
yading@10:     }
yading@10: 
yading@10:     ost->source_index = -1;
yading@10:     ost->filter       = ofilter;
yading@10: 
yading@10:     ofilter->ost      = ost;
yading@10: 
yading@10:     if (ost->stream_copy) {
yading@10:         av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
yading@10:                "which is fed from a complex filtergraph. Filtering and streamcopy "
yading@10:                "cannot be used together.\n", ost->file_index, ost->index);
yading@10:         exit(1);
yading@10:     }
yading@10: 
yading@10:     if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "Error configuring filter.\n");
yading@10:         exit(1);
yading@10:     }
yading@10:     avfilter_inout_free(&ofilter->out_tmp);
yading@10: }
yading@10: 
yading@10: static int configure_complex_filters(void)
yading@10: {
yading@10:     int i, ret = 0;
yading@10: 
yading@10:     for (i = 0; i < nb_filtergraphs; i++)
yading@10:         if (!filtergraphs[i]->graph &&
yading@10:             (ret = configure_filtergraph(filtergraphs[i])) < 0)
yading@10:             return ret;
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static int open_output_file(OptionsContext *o, const char *filename)
yading@10: {
yading@10:     AVFormatContext *oc;
yading@10:     int i, j, err;
yading@10:     AVOutputFormat *file_oformat;
yading@10:     OutputFile *of;
yading@10:     OutputStream *ost;
yading@10:     InputStream  *ist;
yading@10:     AVDictionary *unused_opts = NULL;
yading@10:     AVDictionaryEntry *e = NULL;
yading@10: 
yading@10:     if (configure_complex_filters() < 0) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "Error configuring filters.\n");
yading@10:         exit(1);
yading@10:     }
yading@10: 
yading@10:     if (!strcmp(filename, "-"))
yading@10:         filename = "pipe:";
yading@10: 
yading@10:     err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
yading@10:     if (!oc) {
yading@10:         print_error(filename, err);
yading@10:         exit(1);
yading@10:     }
yading@10:     file_oformat= oc->oformat;
yading@10:     oc->interrupt_callback = int_cb;
yading@10: 
yading@10:     /* create streams for all unlabeled output pads */
yading@10:     for (i = 0; i < nb_filtergraphs; i++) {
yading@10:         FilterGraph *fg = filtergraphs[i];
yading@10:         for (j = 0; j < fg->nb_outputs; j++) {
yading@10:             OutputFilter *ofilter = fg->outputs[j];
yading@10: 
yading@10:             if (!ofilter->out_tmp || ofilter->out_tmp->name)
yading@10:                 continue;
yading@10: 
yading@10:             switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
yading@10:                                           ofilter->out_tmp->pad_idx)) {
yading@10:             case AVMEDIA_TYPE_VIDEO:    o->video_disable    = 1; break;
yading@10:             case AVMEDIA_TYPE_AUDIO:    o->audio_disable    = 1; break;
yading@10:             case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
yading@10:             }
yading@10:             init_output_filter(ofilter, o, oc);
yading@10:         }
yading@10:     }
yading@10: 
yading@10:     if (!strcmp(file_oformat->name, "ffm") &&
yading@10:         av_strstart(filename, "http:", NULL)) {
yading@10:         int j;
yading@10:         /* special case for files sent to ffserver: we get the stream
yading@10:            parameters from ffserver */
yading@10:         int err = read_ffserver_streams(o, oc, filename);
yading@10:         if (err < 0) {
yading@10:             print_error(filename, err);
yading@10:             exit(1);
yading@10:         }
yading@10:         for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
yading@10:             ost = output_streams[j];
yading@10:             for (i = 0; i < nb_input_streams; i++) {
yading@10:                 ist = input_streams[i];
yading@10:                 if(ist->st->codec->codec_type == ost->st->codec->codec_type){
yading@10:                     ost->sync_ist= ist;
yading@10:                     ost->source_index= i;
yading@10:                     if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) ost->avfilter = av_strdup("anull");
yading@10:                     if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) ost->avfilter = av_strdup("null");
yading@10:                     ist->discard = 0;
yading@10:                     ist->st->discard = AVDISCARD_NONE;
yading@10:                     break;
yading@10:                 }
yading@10:             }
yading@10:             if(!ost->sync_ist){
yading@10:                 av_log(NULL, AV_LOG_FATAL, "Missing %s stream which is required by this ffm\n", av_get_media_type_string(ost->st->codec->codec_type));
yading@10:                 exit(1);
yading@10:             }
yading@10:         }
yading@10:     } else if (!o->nb_stream_maps) {
yading@10:         char *subtitle_codec_name = NULL;
yading@10:         /* pick the "best" stream of each type */
yading@10: 
yading@10:         /* video: highest resolution */
yading@10:         if (!o->video_disable && oc->oformat->video_codec != AV_CODEC_ID_NONE) {
yading@10:             int area = 0, idx = -1;
yading@10:             int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
yading@10:             for (i = 0; i < nb_input_streams; i++) {
yading@10:                 int new_area;
yading@10:                 ist = input_streams[i];
yading@10:                 new_area = ist->st->codec->width * ist->st->codec->height;
yading@10:                 if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
yading@10:                     new_area = 1;
yading@10:                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
yading@10:                     new_area > area) {
yading@10:                     if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
yading@10:                         continue;
yading@10:                     area = new_area;
yading@10:                     idx = i;
yading@10:                 }
yading@10:             }
yading@10:             if (idx >= 0)
yading@10:                 new_video_stream(o, oc, idx);
yading@10:         }
yading@10: 
yading@10:         /* audio: most channels */
yading@10:         if (!o->audio_disable && oc->oformat->audio_codec != AV_CODEC_ID_NONE) {
yading@10:             int channels = 0, idx = -1;
yading@10:             for (i = 0; i < nb_input_streams; i++) {
yading@10:                 ist = input_streams[i];
yading@10:                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
yading@10:                     ist->st->codec->channels > channels) {
yading@10:                     channels = ist->st->codec->channels;
yading@10:                     idx = i;
yading@10:                 }
yading@10:             }
yading@10:             if (idx >= 0)
yading@10:                 new_audio_stream(o, oc, idx);
yading@10:         }
yading@10: 
yading@10:         /* subtitles: pick first */
yading@10:         MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, oc, "s");
yading@10:         if (!o->subtitle_disable && (oc->oformat->subtitle_codec != AV_CODEC_ID_NONE || subtitle_codec_name)) {
yading@10:             for (i = 0; i < nb_input_streams; i++)
yading@10:                 if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
yading@10:                     new_subtitle_stream(o, oc, i);
yading@10:                     break;
yading@10:                 }
yading@10:         }
yading@10:         /* do something with data? */
yading@10:     } else {
yading@10:         for (i = 0; i < o->nb_stream_maps; i++) {
yading@10:             StreamMap *map = &o->stream_maps[i];
yading@10:             int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
yading@10: 
yading@10:             if (map->disabled)
yading@10:                 continue;
yading@10: 
yading@10:             if (map->linklabel) {
yading@10:                 FilterGraph *fg;
yading@10:                 OutputFilter *ofilter = NULL;
yading@10:                 int j, k;
yading@10: 
yading@10:                 for (j = 0; j < nb_filtergraphs; j++) {
yading@10:                     fg = filtergraphs[j];
yading@10:                     for (k = 0; k < fg->nb_outputs; k++) {
yading@10:                         AVFilterInOut *out = fg->outputs[k]->out_tmp;
yading@10:                         if (out && !strcmp(out->name, map->linklabel)) {
yading@10:                             ofilter = fg->outputs[k];
yading@10:                             goto loop_end;
yading@10:                         }
yading@10:                     }
yading@10:                 }
yading@10: loop_end:
yading@10:                 if (!ofilter) {
yading@10:                     av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
yading@10:                            "in any defined filter graph, or was already used elsewhere.\n", map->linklabel);
yading@10:                     exit(1);
yading@10:                 }
yading@10:                 init_output_filter(ofilter, o, oc);
yading@10:             } else {
yading@10:                 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
yading@10:                 if(o->subtitle_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE)
yading@10:                     continue;
yading@10:                 if(o->   audio_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
yading@10:                     continue;
yading@10:                 if(o->   video_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
yading@10:                     continue;
yading@10:                 if(o->    data_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_DATA)
yading@10:                     continue;
yading@10: 
yading@10:                 switch (ist->st->codec->codec_type) {
yading@10:                 case AVMEDIA_TYPE_VIDEO:      ost = new_video_stream     (o, oc, src_idx); break;
yading@10:                 case AVMEDIA_TYPE_AUDIO:      ost = new_audio_stream     (o, oc, src_idx); break;
yading@10:                 case AVMEDIA_TYPE_SUBTITLE:   ost = new_subtitle_stream  (o, oc, src_idx); break;
yading@10:                 case AVMEDIA_TYPE_DATA:       ost = new_data_stream      (o, oc, src_idx); break;
yading@10:                 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc, src_idx); break;
yading@10:                 default:
yading@10:                     av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
yading@10:                            map->file_index, map->stream_index);
yading@10:                     exit(1);
yading@10:                 }
yading@10:             }
yading@10:         }
yading@10:     }
yading@10: 
yading@10:     /* handle attached files */
yading@10:     for (i = 0; i < o->nb_attachments; i++) {
yading@10:         AVIOContext *pb;
yading@10:         uint8_t *attachment;
yading@10:         const char *p;
yading@10:         int64_t len;
yading@10: 
yading@10:         if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
yading@10:             av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
yading@10:                    o->attachments[i]);
yading@10:             exit(1);
yading@10:         }
yading@10:         if ((len = avio_size(pb)) <= 0) {
yading@10:             av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
yading@10:                    o->attachments[i]);
yading@10:             exit(1);
yading@10:         }
yading@10:         if (!(attachment = av_malloc(len))) {
yading@10:             av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
yading@10:                    o->attachments[i]);
yading@10:             exit(1);
yading@10:         }
yading@10:         avio_read(pb, attachment, len);
yading@10: 
yading@10:         ost = new_attachment_stream(o, oc, -1);
yading@10:         ost->stream_copy               = 0;
yading@10:         ost->attachment_filename       = o->attachments[i];
yading@10:         ost->finished                  = 1;
yading@10:         ost->st->codec->extradata      = attachment;
yading@10:         ost->st->codec->extradata_size = len;
yading@10: 
yading@10:         p = strrchr(o->attachments[i], '/');
yading@10:         av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
yading@10:         avio_close(pb);
yading@10:     }
yading@10: 
yading@10:     for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
yading@10:         AVDictionaryEntry *e;
yading@10:         ost = output_streams[i];
yading@10: 
yading@10:         if ((ost->stream_copy || ost->attachment_filename)
yading@10:             && (e = av_dict_get(o->g->codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
yading@10:             && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
yading@10:             if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
yading@10:                 exit(1);
yading@10:     }
yading@10: 
yading@10:     if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
yading@10:         o->stop_time = INT64_MAX;
yading@10:         av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
yading@10:     }
yading@10: 
yading@10:     if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
yading@10:         if (o->stop_time <= o->start_time) {
yading@10:             av_log(NULL, AV_LOG_WARNING, "-to value smaller than -ss; ignoring -to.\n");
yading@10:             o->stop_time = INT64_MAX;
yading@10:         } else {
yading@10:             o->recording_time = o->stop_time - o->start_time;
yading@10:         }
yading@10:     }
yading@10: 
yading@10:     GROW_ARRAY(output_files, nb_output_files);
yading@10:     of = av_mallocz(sizeof(*of));
yading@10:     if (!of)
yading@10:         exit(1);
yading@10:     output_files[nb_output_files - 1] = of;
yading@10: 
yading@10:     of->ctx            = oc;
yading@10:     of->ost_index      = nb_output_streams - oc->nb_streams;
yading@10:     of->recording_time = o->recording_time;
yading@10:     if (o->recording_time != INT64_MAX)
yading@10:         oc->duration = o->recording_time;
yading@10:     of->start_time     = o->start_time;
yading@10:     of->limit_filesize = o->limit_filesize;
yading@10:     of->shortest       = o->shortest;
yading@10:     av_dict_copy(&of->opts, o->g->format_opts, 0);
yading@10: 
yading@10: 
yading@10:     /* check if all codec options have been used */
yading@10:     unused_opts = strip_specifiers(o->g->codec_opts);
yading@10:     for (i = of->ost_index; i < nb_output_streams; i++) {
yading@10:         e = NULL;
yading@10:         while ((e = av_dict_get(output_streams[i]->opts, "", e,
yading@10:                                 AV_DICT_IGNORE_SUFFIX)))
yading@10:             av_dict_set(&unused_opts, e->key, NULL, 0);
yading@10:     }
yading@10: 
yading@10:     e = NULL;
yading@10:     while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
yading@10:         const AVClass *class = avcodec_get_class();
yading@10:         const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
yading@10:                                              AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
yading@10:         if (!option)
yading@10:             continue;
yading@10:         if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
yading@10:             av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
yading@10:                    "output file #%d (%s) is not an encoding option.\n", e->key,
yading@10:                    option->help ? option->help : "", nb_output_files - 1,
yading@10:                    filename);
yading@10:             exit(1);
yading@10:         }
yading@10: 
yading@10:         av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
yading@10:                "output file #%d (%s) has not been used for any stream. The most "
yading@10:                "likely reason is either wrong type (e.g. a video option with "
yading@10:                "no video streams) or that it is a private option of some encoder "
yading@10:                "which was not actually used for any stream.\n", e->key,
yading@10:                option->help ? option->help : "", nb_output_files - 1, filename);
yading@10:     }
yading@10:     av_dict_free(&unused_opts);
yading@10: 
yading@10:     /* check filename in case of an image number is expected */
yading@10:     if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
yading@10:         if (!av_filename_number_test(oc->filename)) {
yading@10:             print_error(oc->filename, AVERROR(EINVAL));
yading@10:             exit(1);
yading@10:         }
yading@10:     }
yading@10: 
yading@10:     if (!(oc->oformat->flags & AVFMT_NOFILE)) {
yading@10:         /* test if it already exists to avoid losing precious files */
yading@10:         assert_file_overwrite(filename);
yading@10: 
yading@10:         /* open the file */
yading@10:         if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
yading@10:                               &oc->interrupt_callback,
yading@10:                               &of->opts)) < 0) {
yading@10:             print_error(filename, err);
yading@10:             exit(1);
yading@10:         }
yading@10:     } else if (strcmp(oc->oformat->name, "image2")==0 && !av_filename_number_test(filename))
yading@10:         assert_file_overwrite(filename);
yading@10: 
yading@10:     if (o->mux_preload) {
yading@10:         uint8_t buf[64];
yading@10:         snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
yading@10:         av_dict_set(&of->opts, "preload", buf, 0);
yading@10:     }
yading@10:     oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
yading@10: 
yading@10:     /* copy metadata */
yading@10:     for (i = 0; i < o->nb_metadata_map; i++) {
yading@10:         char *p;
yading@10:         int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
yading@10: 
yading@10:         if (in_file_index >= nb_input_files) {
yading@10:             av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
yading@10:             exit(1);
yading@10:         }
yading@10:         copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
yading@10:                       in_file_index >= 0 ?
yading@10:                       input_files[in_file_index]->ctx : NULL, o);
yading@10:     }
yading@10: 
yading@10:     /* copy chapters */
yading@10:     if (o->chapters_input_file >= nb_input_files) {
yading@10:         if (o->chapters_input_file == INT_MAX) {
yading@10:             /* copy chapters from the first input file that has them*/
yading@10:             o->chapters_input_file = -1;
yading@10:             for (i = 0; i < nb_input_files; i++)
yading@10:                 if (input_files[i]->ctx->nb_chapters) {
yading@10:                     o->chapters_input_file = i;
yading@10:                     break;
yading@10:                 }
yading@10:         } else {
yading@10:             av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
yading@10:                    o->chapters_input_file);
yading@10:             exit(1);
yading@10:         }
yading@10:     }
yading@10:     if (o->chapters_input_file >= 0)
yading@10:         copy_chapters(input_files[o->chapters_input_file], of,
yading@10:                       !o->metadata_chapters_manual);
yading@10: 
yading@10:     /* copy global metadata by default */
yading@10:     if (!o->metadata_global_manual && nb_input_files){
yading@10:         av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
yading@10:                      AV_DICT_DONT_OVERWRITE);
yading@10:         if(o->recording_time != INT64_MAX)
yading@10:             av_dict_set(&oc->metadata, "duration", NULL, 0);
yading@10:         av_dict_set(&oc->metadata, "creation_time", NULL, 0);
yading@10:     }
yading@10:     if (!o->metadata_streams_manual)
yading@10:         for (i = of->ost_index; i < nb_output_streams; i++) {
yading@10:             InputStream *ist;
yading@10:             if (output_streams[i]->source_index < 0)         /* this is true e.g. for attached files */
yading@10:                 continue;
yading@10:             ist = input_streams[output_streams[i]->source_index];
yading@10:             av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
yading@10:         }
yading@10: 
yading@10:     /* process manually set metadata */
yading@10:     for (i = 0; i < o->nb_metadata; i++) {
yading@10:         AVDictionary **m;
yading@10:         char type, *val;
yading@10:         const char *stream_spec;
yading@10:         int index = 0, j, ret = 0;
yading@10: 
yading@10:         val = strchr(o->metadata[i].u.str, '=');
yading@10:         if (!val) {
yading@10:             av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
yading@10:                    o->metadata[i].u.str);
yading@10:             exit(1);
yading@10:         }
yading@10:         *val++ = 0;
yading@10: 
yading@10:         parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
yading@10:         if (type == 's') {
yading@10:             for (j = 0; j < oc->nb_streams; j++) {
yading@10:                 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
yading@10:                     av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
yading@10:                 } else if (ret < 0)
yading@10:                     exit(1);
yading@10:             }
yading@10:         }
yading@10:         else {
yading@10:             switch (type) {
yading@10:             case 'g':
yading@10:                 m = &oc->metadata;
yading@10:                 break;
yading@10:             case 'c':
yading@10:                 if (index < 0 || index >= oc->nb_chapters) {
yading@10:                     av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
yading@10:                     exit(1);
yading@10:                 }
yading@10:                 m = &oc->chapters[index]->metadata;
yading@10:                 break;
yading@10:             default:
yading@10:                 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
yading@10:                 exit(1);
yading@10:             }
yading@10:             av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
yading@10:         }
yading@10:     }
yading@10: 
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static int opt_target(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
yading@10:     static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
yading@10: 
yading@10:     if (!strncmp(arg, "pal-", 4)) {
yading@10:         norm = PAL;
yading@10:         arg += 4;
yading@10:     } else if (!strncmp(arg, "ntsc-", 5)) {
yading@10:         norm = NTSC;
yading@10:         arg += 5;
yading@10:     } else if (!strncmp(arg, "film-", 5)) {
yading@10:         norm = FILM;
yading@10:         arg += 5;
yading@10:     } else {
yading@10:         /* Try to determine PAL/NTSC by peeking in the input files */
yading@10:         if (nb_input_files) {
yading@10:             int i, j, fr;
yading@10:             for (j = 0; j < nb_input_files; j++) {
yading@10:                 for (i = 0; i < input_files[j]->nb_streams; i++) {
yading@10:                     AVCodecContext *c = input_files[j]->ctx->streams[i]->codec;
yading@10:                     if (c->codec_type != AVMEDIA_TYPE_VIDEO)
yading@10:                         continue;
yading@10:                     fr = c->time_base.den * 1000 / c->time_base.num;
yading@10:                     if (fr == 25000) {
yading@10:                         norm = PAL;
yading@10:                         break;
yading@10:                     } else if ((fr == 29970) || (fr == 23976)) {
yading@10:                         norm = NTSC;
yading@10:                         break;
yading@10:                     }
yading@10:                 }
yading@10:                 if (norm != UNKNOWN)
yading@10:                     break;
yading@10:             }
yading@10:         }
yading@10:         if (norm != UNKNOWN)
yading@10:             av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
yading@10:     }
yading@10: 
yading@10:     if (norm == UNKNOWN) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
yading@10:         av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
yading@10:         av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
yading@10:         exit(1);
yading@10:     }
yading@10: 
yading@10:     if (!strcmp(arg, "vcd")) {
yading@10:         opt_video_codec(o, "c:v", "mpeg1video");
yading@10:         opt_audio_codec(o, "c:a", "mp2");
yading@10:         parse_option(o, "f", "vcd", options);
yading@10:         av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
yading@10: 
yading@10:         parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
yading@10:         parse_option(o, "r", frame_rates[norm], options);
yading@10:         av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", 0);
yading@10: 
yading@10:         av_dict_set(&o->g->codec_opts, "b:v", "1150000", 0);
yading@10:         av_dict_set(&o->g->codec_opts, "maxrate", "1150000", 0);
yading@10:         av_dict_set(&o->g->codec_opts, "minrate", "1150000", 0);
yading@10:         av_dict_set(&o->g->codec_opts, "bufsize", "327680", 0); // 40*1024*8;
yading@10: 
yading@10:         av_dict_set(&o->g->codec_opts, "b:a", "224000", 0);
yading@10:         parse_option(o, "ar", "44100", options);
yading@10:         parse_option(o, "ac", "2", options);
yading@10: 
yading@10:         av_dict_set(&o->g->format_opts, "packetsize", "2324", 0);
yading@10:         av_dict_set(&o->g->format_opts, "muxrate", "1411200", 0); // 2352 * 75 * 8;
yading@10: 
yading@10:         /* We have to offset the PTS, so that it is consistent with the SCR.
yading@10:            SCR starts at 36000, but the first two packs contain only padding
yading@10:            and the first pack from the other stream, respectively, may also have
yading@10:            been written before.
yading@10:            So the real data starts at SCR 36000+3*1200. */
yading@10:         o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
yading@10:     } else if (!strcmp(arg, "svcd")) {
yading@10: 
yading@10:         opt_video_codec(o, "c:v", "mpeg2video");
yading@10:         opt_audio_codec(o, "c:a", "mp2");
yading@10:         parse_option(o, "f", "svcd", options);
yading@10: 
yading@10:         parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
yading@10:         parse_option(o, "r", frame_rates[norm], options);
yading@10:         parse_option(o, "pix_fmt", "yuv420p", options);
yading@10:         av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", 0);
yading@10: 
yading@10:         av_dict_set(&o->g->codec_opts, "b:v", "2040000", 0);
yading@10:         av_dict_set(&o->g->codec_opts, "maxrate", "2516000", 0);
yading@10:         av_dict_set(&o->g->codec_opts, "minrate", "0", 0); // 1145000;
yading@10:         av_dict_set(&o->g->codec_opts, "bufsize", "1835008", 0); // 224*1024*8;
yading@10:         av_dict_set(&o->g->codec_opts, "scan_offset", "1", 0);
yading@10: 
yading@10:         av_dict_set(&o->g->codec_opts, "b:a", "224000", 0);
yading@10:         parse_option(o, "ar", "44100", options);
yading@10: 
yading@10:         av_dict_set(&o->g->format_opts, "packetsize", "2324", 0);
yading@10: 
yading@10:     } else if (!strcmp(arg, "dvd")) {
yading@10: 
yading@10:         opt_video_codec(o, "c:v", "mpeg2video");
yading@10:         opt_audio_codec(o, "c:a", "ac3");
yading@10:         parse_option(o, "f", "dvd", options);
yading@10: 
yading@10:         parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
yading@10:         parse_option(o, "r", frame_rates[norm], options);
yading@10:         parse_option(o, "pix_fmt", "yuv420p", options);
yading@10:         av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", 0);
yading@10: 
yading@10:         av_dict_set(&o->g->codec_opts, "b:v", "6000000", 0);
yading@10:         av_dict_set(&o->g->codec_opts, "maxrate", "9000000", 0);
yading@10:         av_dict_set(&o->g->codec_opts, "minrate", "0", 0); // 1500000;
yading@10:         av_dict_set(&o->g->codec_opts, "bufsize", "1835008", 0); // 224*1024*8;
yading@10: 
yading@10:         av_dict_set(&o->g->format_opts, "packetsize", "2048", 0);  // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
yading@10:         av_dict_set(&o->g->format_opts, "muxrate", "10080000", 0); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
yading@10: 
yading@10:         av_dict_set(&o->g->codec_opts, "b:a", "448000", 0);
yading@10:         parse_option(o, "ar", "48000", options);
yading@10: 
yading@10:     } else if (!strncmp(arg, "dv", 2)) {
yading@10: 
yading@10:         parse_option(o, "f", "dv", options);
yading@10: 
yading@10:         parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
yading@10:         parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
yading@10:                           norm == PAL ? "yuv420p" : "yuv411p", options);
yading@10:         parse_option(o, "r", frame_rates[norm], options);
yading@10: 
yading@10:         parse_option(o, "ar", "48000", options);
yading@10:         parse_option(o, "ac", "2", options);
yading@10: 
yading@10:     } else {
yading@10:         av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
yading@10:         return AVERROR(EINVAL);
yading@10:     }
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     av_free (vstats_filename);
yading@10:     vstats_filename = av_strdup (arg);
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static int opt_vstats(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     char filename[40];
yading@10:     time_t today2 = time(NULL);
yading@10:     struct tm *today = localtime(&today2);
yading@10: 
yading@10:     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
yading@10:              today->tm_sec);
yading@10:     return opt_vstats_file(NULL, opt, filename);
yading@10: }
yading@10: 
yading@10: static int opt_video_frames(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     return parse_option(o, "frames:v", arg, options);
yading@10: }
yading@10: 
yading@10: static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     return parse_option(o, "frames:a", arg, options);
yading@10: }
yading@10: 
yading@10: static int opt_data_frames(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     return parse_option(o, "frames:d", arg, options);
yading@10: }
yading@10: 
yading@10: static int opt_default_new(OptionsContext *o, const char *opt, const char *arg)
yading@10: {
yading@10:     int ret;
yading@10:     AVDictionary *cbak = codec_opts;
yading@10:     AVDictionary *fbak = format_opts;
yading@10:     codec_opts = NULL;
yading@10:     format_opts = NULL;
yading@10: 
yading@10:     ret = opt_default(NULL, opt, arg);
yading@10: 
yading@10:     av_dict_copy(&o->g->codec_opts , codec_opts, 0);
yading@10:     av_dict_copy(&o->g->format_opts, format_opts, 0);
yading@10:     av_dict_free(&codec_opts);
yading@10:     av_dict_free(&format_opts);
yading@10:     codec_opts = cbak;
yading@10:     format_opts = fbak;
yading@10: 
yading@10:     return ret;
yading@10: }
yading@10: 
yading@10: static int opt_preset(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     FILE *f=NULL;
yading@10:     char filename[1000], line[1000], tmp_line[1000];
yading@10:     const char *codec_name = NULL;
yading@10: 
yading@10:     tmp_line[0] = *opt;
yading@10:     tmp_line[1] = 0;
yading@10:     MATCH_PER_TYPE_OPT(codec_names, str, codec_name, NULL, tmp_line);
yading@10: 
yading@10:     if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
yading@10:         if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
yading@10:             av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
yading@10:         }else
yading@10:             av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
yading@10:         exit(1);
yading@10:     }
yading@10: 
yading@10:     while (fgets(line, sizeof(line), f)) {
yading@10:         char *key = tmp_line, *value, *endptr;
yading@10: 
yading@10:         if (strcspn(line, "#\n\r") == 0)
yading@10:             continue;
yading@10:         av_strlcpy(tmp_line, line, sizeof(tmp_line));
yading@10:         if (!av_strtok(key,   "=",    &value) ||
yading@10:             !av_strtok(value, "\r\n", &endptr)) {
yading@10:             av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
yading@10:             exit(1);
yading@10:         }
yading@10:         av_log(NULL, AV_LOG_DEBUG, "ffpreset[%s]: set '%s' = '%s'\n", filename, key, value);
yading@10: 
yading@10:         if      (!strcmp(key, "acodec")) opt_audio_codec   (o, key, value);
yading@10:         else if (!strcmp(key, "vcodec")) opt_video_codec   (o, key, value);
yading@10:         else if (!strcmp(key, "scodec")) opt_subtitle_codec(o, key, value);
yading@10:         else if (!strcmp(key, "dcodec")) opt_data_codec    (o, key, value);
yading@10:         else if (opt_default_new(o, key, value) < 0) {
yading@10:             av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n",
yading@10:                    filename, line, key, value);
yading@10:             exit(1);
yading@10:         }
yading@10:     }
yading@10: 
yading@10:     fclose(f);
yading@10: 
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static int opt_old2new(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     char *s = av_asprintf("%s:%c", opt + 1, *opt);
yading@10:     int ret = parse_option(o, s, arg, options);
yading@10:     av_free(s);
yading@10:     return ret;
yading@10: }
yading@10: 
yading@10: static int opt_bitrate(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     if(!strcmp(opt, "b")){
yading@10:         av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
yading@10:         av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
yading@10:         return 0;
yading@10:     }
yading@10:     av_dict_set(&o->g->codec_opts, opt, arg, 0);
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static int opt_qscale(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     char *s;
yading@10:     int ret;
yading@10:     if(!strcmp(opt, "qscale")){
yading@10:         av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
yading@10:         return parse_option(o, "q:v", arg, options);
yading@10:     }
yading@10:     s = av_asprintf("q%s", opt + 6);
yading@10:     ret = parse_option(o, s, arg, options);
yading@10:     av_free(s);
yading@10:     return ret;
yading@10: }
yading@10: 
yading@10: static int opt_profile(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     if(!strcmp(opt, "profile")){
yading@10:         av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
yading@10:         av_dict_set(&o->g->codec_opts, "profile:v", arg, 0);
yading@10:         return 0;
yading@10:     }
yading@10:     av_dict_set(&o->g->codec_opts, opt, arg, 0);
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static int opt_video_filters(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     return parse_option(o, "filter:v", arg, options);
yading@10: }
yading@10: 
yading@10: static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     return parse_option(o, "filter:a", arg, options);
yading@10: }
yading@10: 
yading@10: static int opt_vsync(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     if      (!av_strcasecmp(arg, "cfr"))         video_sync_method = VSYNC_CFR;
yading@10:     else if (!av_strcasecmp(arg, "vfr"))         video_sync_method = VSYNC_VFR;
yading@10:     else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
yading@10:     else if (!av_strcasecmp(arg, "drop"))        video_sync_method = VSYNC_DROP;
yading@10: 
yading@10:     if (video_sync_method == VSYNC_AUTO)
yading@10:         video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static int opt_timecode(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     char *tcr = av_asprintf("timecode=%s", arg);
yading@10:     int ret = parse_option(o, "metadata:g", tcr, options);
yading@10:     if (ret >= 0)
yading@10:         ret = av_dict_set(&o->g->codec_opts, "gop_timecode", arg, 0);
yading@10:     av_free(tcr);
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     char layout_str[32];
yading@10:     char *stream_str;
yading@10:     char *ac_str;
yading@10:     int ret, channels, ac_str_size;
yading@10:     uint64_t layout;
yading@10: 
yading@10:     layout = av_get_channel_layout(arg);
yading@10:     if (!layout) {
yading@10:         av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
yading@10:         return AVERROR(EINVAL);
yading@10:     }
yading@10:     snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
yading@10:     ret = opt_default_new(o, opt, layout_str);
yading@10:     if (ret < 0)
yading@10:         return ret;
yading@10: 
yading@10:     /* set 'ac' option based on channel layout */
yading@10:     channels = av_get_channel_layout_nb_channels(layout);
yading@10:     snprintf(layout_str, sizeof(layout_str), "%d", channels);
yading@10:     stream_str = strchr(opt, ':');
yading@10:     ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
yading@10:     ac_str = av_mallocz(ac_str_size);
yading@10:     if (!ac_str)
yading@10:         return AVERROR(ENOMEM);
yading@10:     av_strlcpy(ac_str, "ac", 3);
yading@10:     if (stream_str)
yading@10:         av_strlcat(ac_str, stream_str, ac_str_size);
yading@10:     ret = parse_option(o, ac_str, layout_str, options);
yading@10:     av_free(ac_str);
yading@10: 
yading@10:     return ret;
yading@10: }
yading@10: 
yading@10: static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     OptionsContext *o = optctx;
yading@10:     return parse_option(o, "q:a", arg, options);
yading@10: }
yading@10: 
yading@10: static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     GROW_ARRAY(filtergraphs, nb_filtergraphs);
yading@10:     if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
yading@10:         return AVERROR(ENOMEM);
yading@10:     filtergraphs[nb_filtergraphs - 1]->index      = nb_filtergraphs - 1;
yading@10:     filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
yading@10:     if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
yading@10:         return AVERROR(ENOMEM);
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     uint8_t *graph_desc = read_file(arg);
yading@10:     if (!graph_desc)
yading@10:         return AVERROR(EINVAL);
yading@10: 
yading@10:     GROW_ARRAY(filtergraphs, nb_filtergraphs);
yading@10:     if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
yading@10:         return AVERROR(ENOMEM);
yading@10:     filtergraphs[nb_filtergraphs - 1]->index      = nb_filtergraphs - 1;
yading@10:     filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: void show_help_default(const char *opt, const char *arg)
yading@10: {
yading@10:     /* per-file options have at least one of those set */
yading@10:     const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
yading@10:     int show_advanced = 0, show_avoptions = 0;
yading@10: 
yading@10:     if (opt && *opt) {
yading@10:         if (!strcmp(opt, "long"))
yading@10:             show_advanced = 1;
yading@10:         else if (!strcmp(opt, "full"))
yading@10:             show_advanced = show_avoptions = 1;
yading@10:         else
yading@10:             av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
yading@10:     }
yading@10: 
yading@10:     show_usage();
yading@10: 
yading@10:     printf("Getting help:\n"
yading@10:            "    -h      -- print basic options\n"
yading@10:            "    -h long -- print more options\n"
yading@10:            "    -h full -- print all options (including all format and codec specific options, very long)\n"
yading@10:            "    See man %s for detailed description of the options.\n"
yading@10:            "\n", program_name);
yading@10: 
yading@10:     show_help_options(options, "Print help / information / capabilities:",
yading@10:                       OPT_EXIT, 0, 0);
yading@10: 
yading@10:     show_help_options(options, "Global options (affect whole program "
yading@10:                       "instead of just one file:",
yading@10:                       0, per_file | OPT_EXIT | OPT_EXPERT, 0);
yading@10:     if (show_advanced)
yading@10:         show_help_options(options, "Advanced global options:", OPT_EXPERT,
yading@10:                           per_file | OPT_EXIT, 0);
yading@10: 
yading@10:     show_help_options(options, "Per-file main options:", 0,
yading@10:                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
yading@10:                       OPT_EXIT, per_file);
yading@10:     if (show_advanced)
yading@10:         show_help_options(options, "Advanced per-file options:",
yading@10:                           OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
yading@10: 
yading@10:     show_help_options(options, "Video options:",
yading@10:                       OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
yading@10:     if (show_advanced)
yading@10:         show_help_options(options, "Advanced Video options:",
yading@10:                           OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
yading@10: 
yading@10:     show_help_options(options, "Audio options:",
yading@10:                       OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
yading@10:     if (show_advanced)
yading@10:         show_help_options(options, "Advanced Audio options:",
yading@10:                           OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
yading@10:     show_help_options(options, "Subtitle options:",
yading@10:                       OPT_SUBTITLE, 0, 0);
yading@10:     printf("\n");
yading@10: 
yading@10:     if (show_avoptions) {
yading@10:         int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
yading@10:         show_help_children(avcodec_get_class(), flags);
yading@10:         show_help_children(avformat_get_class(), flags);
yading@10:         show_help_children(sws_get_class(), flags);
yading@10:         show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
yading@10:         show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM);
yading@10:     }
yading@10: }
yading@10: 
yading@10: void show_usage(void)
yading@10: {
yading@10:     av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
yading@10:     av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
yading@10:     av_log(NULL, AV_LOG_INFO, "\n");
yading@10: }
yading@10: 
yading@10: enum OptGroup {
yading@10:     GROUP_OUTFILE,
yading@10:     GROUP_INFILE,
yading@10: };
yading@10: 
yading@10: static const OptionGroupDef groups[] = {
yading@10:     [GROUP_OUTFILE] = { "output file",  NULL, OPT_OUTPUT },
yading@10:     [GROUP_INFILE]  = { "input file",   "i",  OPT_INPUT },
yading@10: };
yading@10: 
yading@10: static int open_files(OptionGroupList *l, const char *inout,
yading@10:                       int (*open_file)(OptionsContext*, const char*))
yading@10: {
yading@10:     int i, ret;
yading@10: 
yading@10:     for (i = 0; i < l->nb_groups; i++) {
yading@10:         OptionGroup *g = &l->groups[i];
yading@10:         OptionsContext o;
yading@10: 
yading@10:         init_options(&o, !strcmp(inout, "input"));
yading@10:         o.g = g;
yading@10: 
yading@10:         ret = parse_optgroup(&o, g);
yading@10:         if (ret < 0) {
yading@10:             av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
yading@10:                    "%s.\n", inout, g->arg);
yading@10:             return ret;
yading@10:         }
yading@10: 
yading@10:         av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
yading@10:         ret = open_file(&o, g->arg);
yading@10:         uninit_options(&o, !strcmp(inout, "input"));
yading@10:         if (ret < 0) {
yading@10:             av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
yading@10:                    inout, g->arg);
yading@10:             return ret;
yading@10:         }
yading@10:         av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
yading@10:     }
yading@10: 
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: int ffmpeg_parse_options(int argc, char **argv)
yading@10: {
yading@10:     OptionParseContext octx;
yading@10:     uint8_t error[128];
yading@10:     int ret;
yading@10: 
yading@10:     memset(&octx, 0, sizeof(octx));
yading@10: 
yading@10:     /* split the commandline into an internal representation */
yading@10:     ret = split_commandline(&octx, argc, argv, options, groups,
yading@10:                             FF_ARRAY_ELEMS(groups));
yading@10:     if (ret < 0) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
yading@10:         goto fail;
yading@10:     }
yading@10: 
yading@10:     /* apply global options */
yading@10:     ret = parse_optgroup(NULL, &octx.global_opts);
yading@10:     if (ret < 0) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
yading@10:         goto fail;
yading@10:     }
yading@10: 
yading@10:     /* open input files */
yading@10:     ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
yading@10:     if (ret < 0) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
yading@10:         goto fail;
yading@10:     }
yading@10: 
yading@10:     /* open output files */
yading@10:     ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
yading@10:     if (ret < 0) {
yading@10:         av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
yading@10:         goto fail;
yading@10:     }
yading@10: 
yading@10: fail:
yading@10:     uninit_parse_context(&octx);
yading@10:     if (ret < 0) {
yading@10:         av_strerror(ret, error, sizeof(error));
yading@10:         av_log(NULL, AV_LOG_FATAL, "%s\n", error);
yading@10:     }
yading@10:     return ret;
yading@10: }
yading@10: 
yading@10: static int opt_progress(void *optctx, const char *opt, const char *arg)
yading@10: {
yading@10:     AVIOContext *avio = NULL;
yading@10:     int ret;
yading@10: 
yading@10:     if (!strcmp(arg, "-"))
yading@10:         arg = "pipe:";
yading@10:     ret = avio_open2(&avio, arg, AVIO_FLAG_WRITE, &int_cb, NULL);
yading@10:     if (ret < 0) {
yading@10:         av_log(NULL, AV_LOG_ERROR, "Failed to open progress URL \"%s\": %s\n",
yading@10:                arg, av_err2str(ret));
yading@10:         return ret;
yading@10:     }
yading@10:     progress_avio = avio;
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: #define OFFSET(x) offsetof(OptionsContext, x)
yading@10: const OptionDef options[] = {
yading@10:     /* main options */
yading@10: #include "cmdutils_common_opts.h"
yading@10:     { "f",              HAS_ARG | OPT_STRING | OPT_OFFSET |
yading@10:                         OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(format) },
yading@10:         "force format", "fmt" },
yading@10:     { "y",              OPT_BOOL,                                    {              &file_overwrite },
yading@10:         "overwrite output files" },
yading@10:     { "n",              OPT_BOOL,                                    {              &no_file_overwrite },
yading@10:         "do not overwrite output files" },
yading@10:     { "c",              HAS_ARG | OPT_STRING | OPT_SPEC |
yading@10:                         OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(codec_names) },
yading@10:         "codec name", "codec" },
yading@10:     { "codec",          HAS_ARG | OPT_STRING | OPT_SPEC |
yading@10:                         OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(codec_names) },
yading@10:         "codec name", "codec" },
yading@10:     { "pre",            HAS_ARG | OPT_STRING | OPT_SPEC |
yading@10:                         OPT_OUTPUT,                                  { .off       = OFFSET(presets) },
yading@10:         "preset name", "preset" },
yading@10:     { "map",            HAS_ARG | OPT_EXPERT | OPT_PERFILE |
yading@10:                         OPT_OUTPUT,                                  { .func_arg = opt_map },
yading@10:         "set input stream mapping",
yading@10:         "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
yading@10:     { "map_channel",    HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_map_channel },
yading@10:         "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
yading@10:     { "map_metadata",   HAS_ARG | OPT_STRING | OPT_SPEC |
yading@10:                         OPT_OUTPUT,                                  { .off       = OFFSET(metadata_map) },
yading@10:         "set metadata information of outfile from infile",
yading@10:         "outfile[,metadata]:infile[,metadata]" },
yading@10:     { "map_chapters",   HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
yading@10:                         OPT_OUTPUT,                                  { .off = OFFSET(chapters_input_file) },
yading@10:         "set chapters mapping", "input_file_index" },
yading@10:     { "t",              HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(recording_time) },
yading@10:         "record or transcode \"duration\" seconds of audio/video",
yading@10:         "duration" },
yading@10:     { "to",             HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_OUTPUT,  { .off = OFFSET(stop_time) },
yading@10:         "record or transcode stop time", "time_stop" },
yading@10:     { "fs",             HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
yading@10:         "set the limit file size in bytes", "limit_size" },
yading@10:     { "ss",             HAS_ARG | OPT_TIME | OPT_OFFSET |
yading@10:                         OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(start_time) },
yading@10:         "set the start time offset", "time_off" },
yading@10:     { "itsoffset",      HAS_ARG | OPT_TIME | OPT_OFFSET |
yading@10:                         OPT_EXPERT | OPT_INPUT,                      { .off = OFFSET(input_ts_offset) },
yading@10:         "set the input ts offset", "time_off" },
yading@10:     { "itsscale",       HAS_ARG | OPT_DOUBLE | OPT_SPEC |
yading@10:                         OPT_EXPERT | OPT_INPUT,                      { .off = OFFSET(ts_scale) },
yading@10:         "set the input ts scale", "scale" },
yading@10:     { "timestamp",      HAS_ARG | OPT_PERFILE,                       { .func_arg = opt_recording_timestamp },
yading@10:         "set the recording timestamp ('now' to set the current time)", "time" },
yading@10:     { "metadata",       HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
yading@10:         "add metadata", "string=string" },
yading@10:     { "dframes",        HAS_ARG | OPT_PERFILE | OPT_EXPERT |
yading@10:                         OPT_OUTPUT,                                  { .func_arg = opt_data_frames },
yading@10:         "set the number of data frames to record", "number" },
yading@10:     { "benchmark",      OPT_BOOL | OPT_EXPERT,                       { &do_benchmark },
yading@10:         "add timings for benchmarking" },
yading@10:     { "benchmark_all",  OPT_BOOL | OPT_EXPERT,                       { &do_benchmark_all },
yading@10:       "add timings for each task" },
yading@10:     { "progress",       HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_progress },
yading@10:       "write program-readable progress information", "url" },
yading@10:     { "stdin",          OPT_BOOL | OPT_EXPERT,                       { &stdin_interaction },
yading@10:       "enable or disable interaction on standard input" },
yading@10:     { "timelimit",      HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_timelimit },
yading@10:         "set max runtime in seconds", "limit" },
yading@10:     { "dump",           OPT_BOOL | OPT_EXPERT,                       { &do_pkt_dump },
yading@10:         "dump each input packet" },
yading@10:     { "hex",            OPT_BOOL | OPT_EXPERT,                       { &do_hex_dump },
yading@10:         "when dumping packets, also dump the payload" },
yading@10:     { "re",             OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
yading@10:                         OPT_INPUT,                                   { .off = OFFSET(rate_emu) },
yading@10:         "read input at native frame rate", "" },
yading@10:     { "target",         HAS_ARG | OPT_PERFILE | OPT_OUTPUT,          { .func_arg = opt_target },
yading@10:         "specify target file type (\"vcd\", \"svcd\", \"dvd\","
yading@10:         " \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
yading@10:     { "vsync",          HAS_ARG | OPT_EXPERT,                        { opt_vsync },
yading@10:         "video sync method", "" },
yading@10:     { "async",          HAS_ARG | OPT_INT | OPT_EXPERT,              { &audio_sync_method },
yading@10:         "audio sync method", "" },
yading@10:     { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,          { &audio_drift_threshold },
yading@10:         "audio drift threshold", "threshold" },
yading@10:     { "copyts",         OPT_BOOL | OPT_EXPERT,                       { &copy_ts },
yading@10:         "copy timestamps" },
yading@10:     { "copytb",         HAS_ARG | OPT_INT | OPT_EXPERT,              { &copy_tb },
yading@10:         "copy input stream time base when stream copying", "mode" },
yading@10:     { "shortest",       OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
yading@10:                         OPT_OUTPUT,                                  { .off = OFFSET(shortest) },
yading@10:         "finish encoding within shortest input" },
yading@10:     { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,       { &dts_delta_threshold },
yading@10:         "timestamp discontinuity delta threshold", "threshold" },
yading@10:     { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,       { &dts_error_threshold },
yading@10:         "timestamp error delta threshold", "threshold" },
yading@10:     { "xerror",         OPT_BOOL | OPT_EXPERT,                       { &exit_on_error },
yading@10:         "exit on error", "error" },
yading@10:     { "copyinkf",       OPT_BOOL | OPT_EXPERT | OPT_SPEC |
yading@10:                         OPT_OUTPUT,                                  { .off = OFFSET(copy_initial_nonkeyframes) },
yading@10:         "copy initial non-keyframes" },
yading@10:     { "copypriorss",    OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT,   { .off = OFFSET(copy_prior_start) },
yading@10:         "copy or discard frames before start time" },
yading@10:     { "frames",         OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
yading@10:         "set the number of frames to record", "number" },
yading@10:     { "tag",            OPT_STRING | HAS_ARG | OPT_SPEC |
yading@10:                         OPT_EXPERT | OPT_OUTPUT,                     { .off = OFFSET(codec_tags) },
yading@10:         "force codec tag/fourcc", "fourcc/tag" },
yading@10:     { "q",              HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
yading@10:                         OPT_SPEC | OPT_OUTPUT,                       { .off = OFFSET(qscale) },
yading@10:         "use fixed quality scale (VBR)", "q" },
yading@10:     { "qscale",         HAS_ARG | OPT_EXPERT | OPT_PERFILE |
yading@10:                         OPT_OUTPUT,                                  { .func_arg = opt_qscale },
yading@10:         "use fixed quality scale (VBR)", "q" },
yading@10:     { "profile",        HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_profile },
yading@10:         "set profile", "profile" },
yading@10:     { "filter",         HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
yading@10:         "set stream filtergraph", "filter_graph" },
yading@10:     { "filter_script",  HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
yading@10:         "read stream filtergraph description from a file", "filename" },
yading@10:     { "reinit_filter",  HAS_ARG | OPT_INT | OPT_SPEC | OPT_INPUT,    { .off = OFFSET(reinit_filters) },
yading@10:         "reinit filtergraph on input parameter changes", "" },
yading@10:     { "filter_complex", HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_filter_complex },
yading@10:         "create a complex filtergraph", "graph_description" },
yading@10:     { "lavfi",          HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_filter_complex },
yading@10:         "create a complex filtergraph", "graph_description" },
yading@10:     { "filter_complex_script", HAS_ARG | OPT_EXPERT,                 { .func_arg = opt_filter_complex_script },
yading@10:         "read complex filtergraph description from a file", "filename" },
yading@10:     { "stats",          OPT_BOOL,                                    { &print_stats },
yading@10:         "print progress report during encoding", },
yading@10:     { "attach",         HAS_ARG | OPT_PERFILE | OPT_EXPERT |
yading@10:                         OPT_OUTPUT,                                  { .func_arg = opt_attach },
yading@10:         "add an attachment to the output file", "filename" },
yading@10:     { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
yading@10:                          OPT_EXPERT | OPT_INPUT,                     { .off = OFFSET(dump_attachment) },
yading@10:         "extract an attachment into a file", "filename" },
yading@10:     { "debug_ts",       OPT_BOOL | OPT_EXPERT,                       { &debug_ts },
yading@10:         "print timestamp debugging info" },
yading@10: 
yading@10:     /* video options */
yading@10:     { "vframes",      OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_video_frames },
yading@10:         "set the number of video frames to record", "number" },
yading@10:     { "r",            OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC |
yading@10:                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_rates) },
yading@10:         "set frame rate (Hz value, fraction or abbreviation)", "rate" },
yading@10:     { "s",            OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC |
yading@10:                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_sizes) },
yading@10:         "set frame size (WxH or abbreviation)", "size" },
yading@10:     { "aspect",       OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC |
yading@10:                       OPT_OUTPUT,                                                { .off = OFFSET(frame_aspect_ratios) },
yading@10:         "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
yading@10:     { "pix_fmt",      OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
yading@10:                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_pix_fmts) },
yading@10:         "set pixel format", "format" },
yading@10:     { "bits_per_raw_sample", OPT_VIDEO | OPT_INT | HAS_ARG,                      { &frame_bits_per_raw_sample },
yading@10:         "set the number of bits per raw sample", "number" },
yading@10:     { "intra",        OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &intra_only },
yading@10:         "deprecated use -g 1" },
yading@10:     { "vn",           OPT_VIDEO | OPT_BOOL  | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(video_disable) },
yading@10:         "disable video" },
yading@10:     { "vdt",          OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT ,               { &video_discard },
yading@10:         "discard threshold", "n" },
yading@10:     { "rc_override",  OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
yading@10:                       OPT_OUTPUT,                                                { .off = OFFSET(rc_overrides) },
yading@10:         "rate control override for specific intervals", "override" },
yading@10:     { "vcodec",       OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_INPUT |
yading@10:                       OPT_OUTPUT,                                                { .func_arg = opt_video_codec },
yading@10:         "force video codec ('copy' to copy stream)", "codec" },
yading@10:     { "sameq",        OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_sameq },
yading@10:         "Removed" },
yading@10:     { "same_quant",   OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_sameq },
yading@10:         "Removed" },
yading@10:     { "timecode",     OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_timecode },
yading@10:         "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
yading@10:     { "pass",         OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT,     { .off = OFFSET(pass) },
yading@10:         "select the pass number (1 to 3)", "n" },
yading@10:     { "passlogfile",  OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
yading@10:                       OPT_OUTPUT,                                                { .off = OFFSET(passlogfiles) },
yading@10:         "select two pass log file name prefix", "prefix" },
yading@10:     { "deinterlace",  OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &do_deinterlace },
yading@10:         "this option is deprecated, use the yadif filter instead" },
yading@10:     { "psnr",         OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &do_psnr },
yading@10:         "calculate PSNR of compressed frames" },
yading@10:     { "vstats",       OPT_VIDEO | OPT_EXPERT ,                                   { &opt_vstats },
yading@10:         "dump video coding statistics to file" },
yading@10:     { "vstats_file",  OPT_VIDEO | HAS_ARG | OPT_EXPERT ,                         { opt_vstats_file },
yading@10:         "dump video coding statistics to file", "file" },
yading@10:     { "vf",           OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_video_filters },
yading@10:         "set video filters", "filter_graph" },
yading@10:     { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
yading@10:                       OPT_OUTPUT,                                                { .off = OFFSET(intra_matrices) },
yading@10:         "specify intra matrix coeffs", "matrix" },
yading@10:     { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
yading@10:                       OPT_OUTPUT,                                                { .off = OFFSET(inter_matrices) },
yading@10:         "specify inter matrix coeffs", "matrix" },
yading@10:     { "top",          OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_INT| OPT_SPEC |
yading@10:                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(top_field_first) },
yading@10:         "top=1/bottom=0/auto=-1 field first", "" },
yading@10:     { "dc",           OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT ,               { &intra_dc_precision },
yading@10:         "intra_dc_precision", "precision" },
yading@10:     { "vtag",         OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_PERFILE |
yading@10:                       OPT_OUTPUT,                                                { .func_arg = opt_old2new },
yading@10:         "force video tag/fourcc", "fourcc/tag" },
yading@10:     { "qphist",       OPT_VIDEO | OPT_BOOL | OPT_EXPERT ,                        { &qp_hist },
yading@10:         "show QP histogram" },
yading@10:     { "force_fps",    OPT_VIDEO | OPT_BOOL | OPT_EXPERT  | OPT_SPEC |
yading@10:                       OPT_OUTPUT,                                                { .off = OFFSET(force_fps) },
yading@10:         "force the selected framerate, disable the best supported framerate selection" },
yading@10:     { "streamid",     OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
yading@10:                       OPT_OUTPUT,                                                { .func_arg = opt_streamid },
yading@10:         "set the value of an outfile streamid", "streamIndex:value" },
yading@10:     { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
yading@10:                           OPT_SPEC | OPT_OUTPUT,                                 { .off = OFFSET(forced_key_frames) },
yading@10:         "force key frames at specified timestamps", "timestamps" },
yading@10:     { "b",            OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_bitrate },
yading@10:         "video bitrate (please use -b:v)", "bitrate" },
yading@10: 
yading@10:     /* audio options */
yading@10:     { "aframes",        OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_frames },
yading@10:         "set the number of audio frames to record", "number" },
yading@10:     { "aq",             OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_qscale },
yading@10:         "set audio quality (codec-specific)", "quality", },
yading@10:     { "ar",             OPT_AUDIO | HAS_ARG  | OPT_INT | OPT_SPEC |
yading@10:                         OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(audio_sample_rate) },
yading@10:         "set audio sampling rate (in Hz)", "rate" },
yading@10:     { "ac",             OPT_AUDIO | HAS_ARG  | OPT_INT | OPT_SPEC |
yading@10:                         OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(audio_channels) },
yading@10:         "set number of audio channels", "channels" },
yading@10:     { "an",             OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(audio_disable) },
yading@10:         "disable audio" },
yading@10:     { "acodec",         OPT_AUDIO | HAS_ARG  | OPT_PERFILE |
yading@10:                         OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_audio_codec },
yading@10:         "force audio codec ('copy' to copy stream)", "codec" },
yading@10:     { "atag",           OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_PERFILE |
yading@10:                         OPT_OUTPUT,                                                { .func_arg = opt_old2new },
yading@10:         "force audio tag/fourcc", "fourcc/tag" },
yading@10:     { "vol",            OPT_AUDIO | HAS_ARG  | OPT_INT,                            { &audio_volume },
yading@10:         "change audio volume (256=normal)" , "volume" },
yading@10:     { "sample_fmt",     OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_SPEC |
yading@10:                         OPT_STRING | OPT_INPUT | OPT_OUTPUT,                       { .off = OFFSET(sample_fmts) },
yading@10:         "set sample format", "format" },
yading@10:     { "channel_layout", OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_PERFILE |
yading@10:                         OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_channel_layout },
yading@10:         "set channel layout", "layout" },
yading@10:     { "af",             OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_filters },
yading@10:         "set audio filters", "filter_graph" },
yading@10:     { "guess_layout_max", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_INPUT, { .off = OFFSET(guess_layout_max) },
yading@10:       "set the maximum number of channels to try to guess the channel layout" },
yading@10: 
yading@10:     /* subtitle options */
yading@10:     { "sn",     OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
yading@10:         "disable subtitle" },
yading@10:     { "scodec", OPT_SUBTITLE | HAS_ARG  | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
yading@10:         "force subtitle codec ('copy' to copy stream)", "codec" },
yading@10:     { "stag",   OPT_SUBTITLE | HAS_ARG  | OPT_EXPERT  | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new }
yading@10:         , "force subtitle tag/fourcc", "fourcc/tag" },
yading@10:     { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC | OPT_INPUT, { .off = OFFSET(fix_sub_duration) },
yading@10:         "fix subtitles duration" },
yading@10:     { "canvas_size", OPT_SUBTITLE | HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFFSET(canvas_sizes) },
yading@10:         "set canvas size (WxH or abbreviation)", "size" },
yading@10: 
yading@10:     /* grab options */
yading@10:     { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_channel },
yading@10:         "deprecated, use -channel", "channel" },
yading@10:     { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_standard },
yading@10:         "deprecated, use -standard", "standard" },
yading@10:     { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
yading@10: 
yading@10:     /* muxer options */
yading@10:     { "muxdelay",   OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
yading@10:         "set the maximum demux-decode delay", "seconds" },
yading@10:     { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
yading@10:         "set the initial demux-decode delay", "seconds" },
yading@10: 
yading@10:     { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
yading@10:         "A comma-separated list of bitstream filters", "bitstream_filters" },
yading@10:     { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
yading@10:         "deprecated", "audio bitstream_filters" },
yading@10:     { "vbsf", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
yading@10:         "deprecated", "video bitstream_filters" },
yading@10: 
yading@10:     { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,    { .func_arg = opt_preset },
yading@10:         "set the audio options to the indicated preset", "preset" },
yading@10:     { "vpre", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,    { .func_arg = opt_preset },
yading@10:         "set the video options to the indicated preset", "preset" },
yading@10:     { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
yading@10:         "set the subtitle options to the indicated preset", "preset" },
yading@10:     { "fpre", HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,                { .func_arg = opt_preset },
yading@10:         "set options from indicated preset file", "filename" },
yading@10:     /* data codec support */
yading@10:     { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
yading@10:         "force data codec ('copy' to copy stream)", "codec" },
yading@10:     { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(data_disable) },
yading@10:         "disable data" },
yading@10: 
yading@10:     { NULL, },
yading@10: };