avformat/mov: set primary extradata based on the first Sample only if it's not already in place

If the first Sample references the first stsd entry, then setting it here is redundant.

James Almer committed 1 year ago

Commit 2681eed1 parent 399c7661 file · +2 −2Browse files

Unified · Split

libavformat/mov.c+2−2

@@ -10684,9 +10684,9 @@ static int mov_read_header(AVFormatContext *s) · 10683 unmodified lines
10684	10684	uint32_t dvdsub_clut[FF_DVDCLUT_CLUT_LEN] = {0};
10685	10685	fix_timescale(mov, sc);
10686	10686
10687		− /* Set the primary extradata based on the first Sample. */
	10687	+ /* Set the primary extradata based on the first Sample if it doesn't reference the first stsd entry. */
10688	10688	if (sc->stsc_count && sc->extradata_size && !sc->iamf &&
10689		− sc->stsc_data[0].id > 0 && sc->stsc_data[0].id <= sc->stsd_count) {
	10689	+ sc->stsc_data[0].id > 1 && sc->stsc_data[0].id <= sc->stsd_count) {
10690	10690	sc->last_stsd_index = sc->stsc_data[0].id - 1;
10691	10691	av_freep(&st->codecpar->extradata);
10692	10692	st->codecpar->extradata_size = sc->extradata_size[sc->last_stsd_index];