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avformat/movenc: write reel_name metadata to tmcd atom 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Mark Reid 2014-08-08 10:37:06 -07:00 committed by Michael Niedermayer
parent 4b63bcef90
commit d6af706eee
1 changed files with 23 additions and 2 deletions
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25
libavformat/movenc.c
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@ -1340,12 +1340,23 @@ static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
return update_size(pb, pos);
}
static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name){
int64_t pos = avio_tell(pb);
avio_wb32(pb, 0); /* size */
ffio_wfourcc(pb, "name"); /* Data format */
avio_wb16(pb, strlen(reel_name)); /* string size */
avio_wb16(pb, track->language); /* langcode */
avio_write(pb, reel_name, strlen(reel_name)); /* reel name */
return update_size(pb,pos);
}
static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
{
int64_t pos = avio_tell(pb);
#if 1
int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
AVDictionaryEntry *t = NULL;
if (nb_frames > 255) {
av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
@ -1361,8 +1372,15 @@ static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
avio_wb32(pb, track->timescale); /* Timescale */
avio_wb32(pb, frame_duration); /* Frame duration */
avio_w8(pb, nb_frames); /* Number of frames */
avio_wb24(pb, 0); /* Reserved */
/* TODO: source reference string */
avio_w8(pb, 0); /* Reserved */
if (track->st)
t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
if (t && utf8len(t->value))
mov_write_source_reference_tag(pb, track, t->value);
else
avio_wb16(pb, 0); /* zero size */
#else
avio_wb32(pb, 0); /* size */
@ -3809,6 +3827,9 @@ static int mov_create_timecode_track(AVFormatContext *s, int index, int src_inde
if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
/* set st to src_st for metadata access*/
track->st = src_st;
/* encode context: tmcd data stream */
track->enc = avcodec_alloc_context3(NULL);
track->enc->codec_type = AVMEDIA_TYPE_DATA;