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avformat/mov: parse rtmd track timecode

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2016-06-25 11:33:46 +02:00
parent b18d6c5800
commit d693392886
1 changed files with 29 additions and 1 deletions
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30
libavformat/mov.c
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@ -4676,6 +4676,31 @@ static int parse_timecode_in_framenum_format(AVFormatContext *s, AVStream *st,
return 0;
}
static int mov_read_rtmd_track(AVFormatContext *s, AVStream *st)
{
MOVStreamContext *sc = st->priv_data;
char buf[AV_TIMECODE_STR_SIZE];
int64_t cur_pos = avio_tell(sc->pb);
int hh, mm, ss, ff, drop;
if (!st->nb_index_entries)
return -1;
avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
avio_skip(s->pb, 13);
hh = avio_r8(s->pb);
mm = avio_r8(s->pb);
ss = avio_r8(s->pb);
drop = avio_r8(s->pb);
ff = avio_r8(s->pb);
snprintf(buf, AV_TIMECODE_STR_SIZE, "%02d:%02d:%02d%c%02d",
hh, mm, ss, drop ? ';' : ':', ff);
av_dict_set(&st->metadata, "timecode", buf, 0);
avio_seek(sc->pb, cur_pos, SEEK_SET);
return 0;
}
static int mov_read_timecode_track(AVFormatContext *s, AVStream *st)
{
MOVStreamContext *sc = st->priv_data;
@ -4954,8 +4979,11 @@ static int mov_read_header(AVFormatContext *s)
if (mov->chapter_track > 0 && !mov->ignore_chapters)
mov_read_chapters(s);
for (i = 0; i < s->nb_streams; i++)
if (s->streams[i]->codecpar->codec_tag == AV_RL32("tmcd"))
if (s->streams[i]->codecpar->codec_tag == AV_RL32("tmcd")) {
mov_read_timecode_track(s, s->streams[i]);
} else if (s->streams[i]->codecpar->codec_tag == AV_RL32("rtmd")) {
mov_read_rtmd_track(s, s->streams[i]);
}
}
/* copy timecode metadata from tmcd tracks to the related video streams */