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Code Issues Releases Activity

mov: export orphan tmcd track metadata to global format metadata.

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This commit is contained in:
Clément Bœsch 2012-06-04 12:06:23 +02:00 committed by Clément Bœsch
parent 1ec23d9c02
commit 20e46aafbd
1 changed files with 37 additions and 0 deletions
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37
libavformat/mov.c
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@ -2872,6 +2872,42 @@ static int mov_read_close(AVFormatContext *s)
return 0;
}
static int tmcd_is_referenced(AVFormatContext *s, int tmcd_id)
{
int i, j;
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
MOVStreamContext *sc = st->priv_data;
if (s->streams[i]->codec->codec_type != AVMEDIA_TYPE_VIDEO)
continue;
for (j = 0; j < sc->trefs_count; j++)
if (tmcd_id == sc->trefs[j])
return 1;
}
return 0;
}
/* look for a tmcd track not referenced by any video track, and export it globally */
static void export_orphan_timecode(AVFormatContext *s)
{
int i;
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
if (st->codec->codec_tag == MKTAG('t','m','c','d') &&
!tmcd_is_referenced(s, i + 1)) {
AVDictionaryEntry *tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
if (tcr) {
av_dict_set(&s->metadata, "timecode", tcr->value, 0);
break;
}
}
}
}
static int mov_read_header(AVFormatContext *s)
{
MOVContext *mov = s->priv_data;
@ -2922,6 +2958,7 @@ static int mov_read_header(AVFormatContext *s)
av_dict_set(&st->metadata, "timecode", tcr->value, 0);
}
}
export_orphan_timecode(s);
if (mov->trex_data) {
for (i = 0; i < s->nb_streams; i++) {