mirror of https://git.videolan.org/git/ffmpeg.git
matroska: Factor out write_track from mkv_write_tracks
This commit is contained in:
Luca Barbato
parent
f1f6156b3f
commit
b75a1f9892
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@ -535,6 +535,42 @@ static void get_aac_sample_rates(AVFormatContext *s, AVCodecContext *codec,
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*output_sample_rate = mp4ac.ext_sample_rate;
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}
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static int mkv_write_native_codecprivate(AVFormatContext *s,
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AVCodecContext *codec,
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AVIOContext *dyn_cp)
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{
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switch (codec->codec_id) {
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case AV_CODEC_ID_VORBIS:
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case AV_CODEC_ID_THEORA:
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return put_xiph_codecpriv(s, dyn_cp, codec);
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case AV_CODEC_ID_FLAC:
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return put_flac_codecpriv(s, dyn_cp, codec);
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case AV_CODEC_ID_WAVPACK:
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return put_wv_codecpriv(dyn_cp, codec);
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case AV_CODEC_ID_H264:
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return ff_isom_write_avcc(dyn_cp, codec->extradata,
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codec->extradata_size);
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case AV_CODEC_ID_HEVC:
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return ff_isom_write_hvcc(dyn_cp, codec->extradata,
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codec->extradata_size, 0);
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case AV_CODEC_ID_ALAC:
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if (codec->extradata_size < 36) {
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av_log(s, AV_LOG_ERROR,
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"Invalid extradata found, ALAC expects a 36-byte "
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"QuickTime atom.");
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return AVERROR_INVALIDDATA;
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} else
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avio_write(dyn_cp, codec->extradata + 12,
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codec->extradata_size - 12);
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break;
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default:
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if (codec->extradata_size)
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avio_write(dyn_cp, codec->extradata, codec->extradata_size);
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}
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return 0;
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}
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static int mkv_write_codecprivate(AVFormatContext *s, AVIOContext *pb,
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AVCodecContext *codec, int native_id,
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int qt_id)
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@ -548,30 +584,7 @@ static int mkv_write_codecprivate(AVFormatContext *s, AVIOContext *pb,
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return ret;
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if (native_id) {
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if (codec->codec_id == AV_CODEC_ID_VORBIS ||
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codec->codec_id == AV_CODEC_ID_THEORA)
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ret = put_xiph_codecpriv(s, dyn_cp, codec);
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else if (codec->codec_id == AV_CODEC_ID_FLAC)
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ret = put_flac_codecpriv(s, dyn_cp, codec);
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else if (codec->codec_id == AV_CODEC_ID_WAVPACK)
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ret = put_wv_codecpriv(dyn_cp, codec);
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else if (codec->codec_id == AV_CODEC_ID_H264)
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ret = ff_isom_write_avcc(dyn_cp, codec->extradata,
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codec->extradata_size);
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else if (codec->codec_id == AV_CODEC_ID_HEVC)
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ret = ff_isom_write_hvcc(dyn_cp, codec->extradata,
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codec->extradata_size, 0);
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else if (codec->codec_id == AV_CODEC_ID_ALAC) {
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if (codec->extradata_size < 36) {
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av_log(s, AV_LOG_ERROR,
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"Invalid extradata found, ALAC expects a 36-byte "
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"QuickTime atom.");
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ret = AVERROR_INVALIDDATA;
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} else
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avio_write(dyn_cp, codec->extradata + 12,
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codec->extradata_size - 12);
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} else if (codec->extradata_size)
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avio_write(dyn_cp, codec->extradata, codec->extradata_size);
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ret = mkv_write_native_codecprivate(s, codec, dyn_cp);
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} else if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
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if (qt_id) {
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if (!codec->codec_tag)
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@ -611,12 +624,175 @@ static int mkv_write_codecprivate(AVFormatContext *s, AVIOContext *pb,
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return ret;
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}
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static int mkv_write_track(AVFormatContext *s, MatroskaMuxContext *mkv,
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int i, AVIOContext *pb)
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{
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AVStream *st = s->streams[i];
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AVCodecContext *codec = st->codec;
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ebml_master subinfo, track;
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int native_id = 0;
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int qt_id = 0;
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int bit_depth = av_get_bits_per_sample(codec->codec_id);
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int sample_rate = codec->sample_rate;
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int output_sample_rate = 0;
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int j, ret;
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AVDictionaryEntry *tag;
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// ms precision is the de-facto standard timescale for mkv files
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avpriv_set_pts_info(st, 64, 1, 1000);
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if (codec->codec_type == AVMEDIA_TYPE_ATTACHMENT) {
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mkv->have_attachments = 1;
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return 0;
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}
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if (!bit_depth)
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bit_depth = av_get_bytes_per_sample(codec->sample_fmt) << 3;
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if (codec->codec_id == AV_CODEC_ID_AAC)
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get_aac_sample_rates(s, codec, &sample_rate, &output_sample_rate);
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track = start_ebml_master(pb, MATROSKA_ID_TRACKENTRY, 0);
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put_ebml_uint (pb, MATROSKA_ID_TRACKNUMBER , i + 1);
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put_ebml_uint (pb, MATROSKA_ID_TRACKUID , i + 1);
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put_ebml_uint (pb, MATROSKA_ID_TRACKFLAGLACING , 0); // no lacing (yet)
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if ((tag = av_dict_get(st->metadata, "title", NULL, 0)))
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put_ebml_string(pb, MATROSKA_ID_TRACKNAME, tag->value);
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tag = av_dict_get(st->metadata, "language", NULL, 0);
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put_ebml_string(pb, MATROSKA_ID_TRACKLANGUAGE, tag ? tag->value:"und");
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// The default value for TRACKFLAGDEFAULT is 1, so add element
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// if we need to clear it.
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if (!(st->disposition & AV_DISPOSITION_DEFAULT))
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put_ebml_uint(pb, MATROSKA_ID_TRACKFLAGDEFAULT, !!(st->disposition & AV_DISPOSITION_DEFAULT));
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if (codec->codec_type == AVMEDIA_TYPE_AUDIO && codec->delay) {
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mkv->tracks[i].ts_offset = av_rescale_q(codec->delay,
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(AVRational){ 1, codec->sample_rate },
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st->time_base);
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put_ebml_uint(pb, MATROSKA_ID_CODECDELAY,
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av_rescale_q(codec->delay, (AVRational){ 1, codec->sample_rate },
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(AVRational){ 1, 1000000000 }));
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}
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// look for a codec ID string specific to mkv to use,
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// if none are found, use AVI codes
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for (j = 0; ff_mkv_codec_tags[j].id != AV_CODEC_ID_NONE; j++) {
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if (ff_mkv_codec_tags[j].id == codec->codec_id) {
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put_ebml_string(pb, MATROSKA_ID_CODECID, ff_mkv_codec_tags[j].str);
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native_id = 1;
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break;
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}
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}
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if (mkv->mode == MODE_WEBM && !(codec->codec_id == AV_CODEC_ID_VP8 ||
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codec->codec_id == AV_CODEC_ID_VP9 ||
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codec->codec_id == AV_CODEC_ID_OPUS ||
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codec->codec_id == AV_CODEC_ID_VORBIS)) {
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av_log(s, AV_LOG_ERROR,
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"Only VP8 or VP9 video and Vorbis or Opus audio are supported for WebM.\n");
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return AVERROR(EINVAL);
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}
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switch (codec->codec_type) {
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case AVMEDIA_TYPE_VIDEO:
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put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, MATROSKA_TRACK_TYPE_VIDEO);
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if (st->avg_frame_rate.num > 0 && st->avg_frame_rate.den > 0)
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put_ebml_uint(pb, MATROSKA_ID_TRACKDEFAULTDURATION, 1E9 / av_q2d(st->avg_frame_rate));
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if (!native_id &&
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ff_codec_get_tag(ff_codec_movvideo_tags, codec->codec_id) &&
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(!ff_codec_get_tag(ff_codec_bmp_tags, codec->codec_id) ||
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codec->codec_id == AV_CODEC_ID_SVQ1 ||
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codec->codec_id == AV_CODEC_ID_SVQ3 ||
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codec->codec_id == AV_CODEC_ID_CINEPAK))
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qt_id = 1;
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if (qt_id)
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put_ebml_string(pb, MATROSKA_ID_CODECID, "V_QUICKTIME");
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else if (!native_id) {
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// if there is no mkv-specific codec ID, use VFW mode
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put_ebml_string(pb, MATROSKA_ID_CODECID, "V_MS/VFW/FOURCC");
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mkv->tracks[i].write_dts = 1;
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}
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subinfo = start_ebml_master(pb, MATROSKA_ID_TRACKVIDEO, 0);
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// XXX: interlace flag?
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put_ebml_uint (pb, MATROSKA_ID_VIDEOPIXELWIDTH , codec->width);
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put_ebml_uint (pb, MATROSKA_ID_VIDEOPIXELHEIGHT, codec->height);
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if ((tag = av_dict_get(s->metadata, "stereo_mode", NULL, 0))) {
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uint8_t stereo_fmt = atoi(tag->value);
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int valid_fmt = 0;
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switch (mkv->mode) {
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case MODE_WEBM:
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if (stereo_fmt <= MATROSKA_VIDEO_STEREOMODE_TYPE_TOP_BOTTOM ||
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stereo_fmt == MATROSKA_VIDEO_STEREOMODE_TYPE_RIGHT_LEFT)
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valid_fmt = 1;
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break;
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case MODE_MATROSKAv2:
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if (stereo_fmt <= MATROSKA_VIDEO_STEREOMODE_TYPE_BOTH_EYES_BLOCK_RL)
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valid_fmt = 1;
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break;
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}
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if (valid_fmt)
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put_ebml_uint (pb, MATROSKA_ID_VIDEOSTEREOMODE, stereo_fmt);
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}
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if (st->sample_aspect_ratio.num) {
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int d_width = codec->width*av_q2d(st->sample_aspect_ratio);
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put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYWIDTH , d_width);
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put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYHEIGHT, codec->height);
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put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYUNIT, 3);
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}
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end_ebml_master(pb, subinfo);
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break;
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case AVMEDIA_TYPE_AUDIO:
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put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, MATROSKA_TRACK_TYPE_AUDIO);
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if (!native_id)
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// no mkv-specific ID, use ACM mode
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put_ebml_string(pb, MATROSKA_ID_CODECID, "A_MS/ACM");
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subinfo = start_ebml_master(pb, MATROSKA_ID_TRACKAUDIO, 0);
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put_ebml_uint (pb, MATROSKA_ID_AUDIOCHANNELS , codec->channels);
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put_ebml_float (pb, MATROSKA_ID_AUDIOSAMPLINGFREQ, sample_rate);
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if (output_sample_rate)
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put_ebml_float(pb, MATROSKA_ID_AUDIOOUTSAMPLINGFREQ, output_sample_rate);
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if (bit_depth)
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put_ebml_uint(pb, MATROSKA_ID_AUDIOBITDEPTH, bit_depth);
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end_ebml_master(pb, subinfo);
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break;
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case AVMEDIA_TYPE_SUBTITLE:
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put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, MATROSKA_TRACK_TYPE_SUBTITLE);
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if (!native_id) {
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av_log(s, AV_LOG_ERROR, "Subtitle codec %d is not supported.\n", codec->codec_id);
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return AVERROR(ENOSYS);
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}
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break;
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default:
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av_log(s, AV_LOG_ERROR, "Only audio, video, and subtitles are supported for Matroska.\n");
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break;
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}
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ret = mkv_write_codecprivate(s, pb, codec, native_id, qt_id);
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if (ret < 0)
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return ret;
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end_ebml_master(pb, track);
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return 0;
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}
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static int mkv_write_tracks(AVFormatContext *s)
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{
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MatroskaMuxContext *mkv = s->priv_data;
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AVIOContext *pb = s->pb;
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ebml_master tracks;
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int i, j, ret;
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int i, ret;
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ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_TRACKS, avio_tell(pb));
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if (ret < 0)
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@ -624,161 +800,9 @@ static int mkv_write_tracks(AVFormatContext *s)
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tracks = start_ebml_master(pb, MATROSKA_ID_TRACKS, 0);
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for (i = 0; i < s->nb_streams; i++) {
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AVStream *st = s->streams[i];
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AVCodecContext *codec = st->codec;
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ebml_master subinfo, track;
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int native_id = 0;
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int qt_id = 0;
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int bit_depth = av_get_bits_per_sample(codec->codec_id);
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int sample_rate = codec->sample_rate;
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int output_sample_rate = 0;
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AVDictionaryEntry *tag;
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// ms precision is the de-facto standard timescale for mkv files
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avpriv_set_pts_info(st, 64, 1, 1000);
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if (codec->codec_type == AVMEDIA_TYPE_ATTACHMENT) {
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mkv->have_attachments = 1;
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continue;
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}
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if (!bit_depth)
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bit_depth = av_get_bytes_per_sample(codec->sample_fmt) << 3;
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if (codec->codec_id == AV_CODEC_ID_AAC)
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get_aac_sample_rates(s, codec, &sample_rate, &output_sample_rate);
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track = start_ebml_master(pb, MATROSKA_ID_TRACKENTRY, 0);
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put_ebml_uint (pb, MATROSKA_ID_TRACKNUMBER , i + 1);
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put_ebml_uint (pb, MATROSKA_ID_TRACKUID , i + 1);
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put_ebml_uint (pb, MATROSKA_ID_TRACKFLAGLACING , 0); // no lacing (yet)
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if ((tag = av_dict_get(st->metadata, "title", NULL, 0)))
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put_ebml_string(pb, MATROSKA_ID_TRACKNAME, tag->value);
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tag = av_dict_get(st->metadata, "language", NULL, 0);
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put_ebml_string(pb, MATROSKA_ID_TRACKLANGUAGE, tag ? tag->value:"und");
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// The default value for TRACKFLAGDEFAULT is 1, so add element
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// if we need to clear it.
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if (!(st->disposition & AV_DISPOSITION_DEFAULT))
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put_ebml_uint(pb, MATROSKA_ID_TRACKFLAGDEFAULT, !!(st->disposition & AV_DISPOSITION_DEFAULT));
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if (codec->codec_type == AVMEDIA_TYPE_AUDIO && codec->delay) {
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mkv->tracks[i].ts_offset = av_rescale_q(codec->delay,
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(AVRational){ 1, codec->sample_rate },
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st->time_base);
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put_ebml_uint(pb, MATROSKA_ID_CODECDELAY,
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av_rescale_q(codec->delay, (AVRational){ 1, codec->sample_rate },
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(AVRational){ 1, 1000000000 }));
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}
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// look for a codec ID string specific to mkv to use,
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// if none are found, use AVI codes
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for (j = 0; ff_mkv_codec_tags[j].id != AV_CODEC_ID_NONE; j++) {
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if (ff_mkv_codec_tags[j].id == codec->codec_id) {
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put_ebml_string(pb, MATROSKA_ID_CODECID, ff_mkv_codec_tags[j].str);
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native_id = 1;
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break;
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}
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}
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if (mkv->mode == MODE_WEBM && !(codec->codec_id == AV_CODEC_ID_VP8 ||
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codec->codec_id == AV_CODEC_ID_VP9 ||
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codec->codec_id == AV_CODEC_ID_OPUS ||
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codec->codec_id == AV_CODEC_ID_VORBIS)) {
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av_log(s, AV_LOG_ERROR,
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"Only VP8 or VP9 video and Vorbis or Opus audio are supported for WebM.\n");
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return AVERROR(EINVAL);
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}
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switch (codec->codec_type) {
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case AVMEDIA_TYPE_VIDEO:
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put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, MATROSKA_TRACK_TYPE_VIDEO);
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if (st->avg_frame_rate.num > 0 && st->avg_frame_rate.den > 0)
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put_ebml_uint(pb, MATROSKA_ID_TRACKDEFAULTDURATION, 1E9 / av_q2d(st->avg_frame_rate));
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if (!native_id &&
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ff_codec_get_tag(ff_codec_movvideo_tags, codec->codec_id) &&
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(!ff_codec_get_tag(ff_codec_bmp_tags, codec->codec_id) ||
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codec->codec_id == AV_CODEC_ID_SVQ1 ||
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codec->codec_id == AV_CODEC_ID_SVQ3 ||
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codec->codec_id == AV_CODEC_ID_CINEPAK))
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qt_id = 1;
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if (qt_id)
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put_ebml_string(pb, MATROSKA_ID_CODECID, "V_QUICKTIME");
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else if (!native_id) {
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// if there is no mkv-specific codec ID, use VFW mode
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put_ebml_string(pb, MATROSKA_ID_CODECID, "V_MS/VFW/FOURCC");
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mkv->tracks[i].write_dts = 1;
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}
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subinfo = start_ebml_master(pb, MATROSKA_ID_TRACKVIDEO, 0);
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// XXX: interlace flag?
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put_ebml_uint (pb, MATROSKA_ID_VIDEOPIXELWIDTH , codec->width);
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put_ebml_uint (pb, MATROSKA_ID_VIDEOPIXELHEIGHT, codec->height);
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if ((tag = av_dict_get(s->metadata, "stereo_mode", NULL, 0))) {
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uint8_t stereo_fmt = atoi(tag->value);
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int valid_fmt = 0;
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switch (mkv->mode) {
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case MODE_WEBM:
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if (stereo_fmt <= MATROSKA_VIDEO_STEREOMODE_TYPE_TOP_BOTTOM ||
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stereo_fmt == MATROSKA_VIDEO_STEREOMODE_TYPE_RIGHT_LEFT)
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valid_fmt = 1;
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break;
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case MODE_MATROSKAv2:
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if (stereo_fmt <= MATROSKA_VIDEO_STEREOMODE_TYPE_BOTH_EYES_BLOCK_RL)
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valid_fmt = 1;
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break;
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}
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if (valid_fmt)
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put_ebml_uint (pb, MATROSKA_ID_VIDEOSTEREOMODE, stereo_fmt);
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}
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if (st->sample_aspect_ratio.num) {
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int d_width = codec->width*av_q2d(st->sample_aspect_ratio);
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put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYWIDTH , d_width);
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put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYHEIGHT, codec->height);
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put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYUNIT, 3);
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}
|
||||
end_ebml_master(pb, subinfo);
|
||||
break;
|
||||
|
||||
case AVMEDIA_TYPE_AUDIO:
|
||||
put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, MATROSKA_TRACK_TYPE_AUDIO);
|
||||
|
||||
if (!native_id)
|
||||
// no mkv-specific ID, use ACM mode
|
||||
put_ebml_string(pb, MATROSKA_ID_CODECID, "A_MS/ACM");
|
||||
|
||||
subinfo = start_ebml_master(pb, MATROSKA_ID_TRACKAUDIO, 0);
|
||||
put_ebml_uint (pb, MATROSKA_ID_AUDIOCHANNELS , codec->channels);
|
||||
put_ebml_float (pb, MATROSKA_ID_AUDIOSAMPLINGFREQ, sample_rate);
|
||||
if (output_sample_rate)
|
||||
put_ebml_float(pb, MATROSKA_ID_AUDIOOUTSAMPLINGFREQ, output_sample_rate);
|
||||
if (bit_depth)
|
||||
put_ebml_uint(pb, MATROSKA_ID_AUDIOBITDEPTH, bit_depth);
|
||||
end_ebml_master(pb, subinfo);
|
||||
break;
|
||||
|
||||
case AVMEDIA_TYPE_SUBTITLE:
|
||||
put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, MATROSKA_TRACK_TYPE_SUBTITLE);
|
||||
if (!native_id) {
|
||||
av_log(s, AV_LOG_ERROR, "Subtitle codec %d is not supported.\n", codec->codec_id);
|
||||
return AVERROR(ENOSYS);
|
||||
}
|
||||
break;
|
||||
default:
|
||||
av_log(s, AV_LOG_ERROR, "Only audio, video, and subtitles are supported for Matroska.\n");
|
||||
break;
|
||||
}
|
||||
ret = mkv_write_codecprivate(s, pb, codec, native_id, qt_id);
|
||||
ret = mkv_write_track(s, mkv, i, pb);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
end_ebml_master(pb, track);
|
||||
}
|
||||
end_ebml_master(pb, tracks);
|
||||
return 0;
|
||||
|
|
|
|||
Loading…
Reference in New Issue