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av1_metadata: Error out if fragment is empty

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If the fragment is empty after parsing (i.e. it contains no OBUs), then
the check for the type of the fragment's first OBU is nonsensical; so
error out in this case just as h264_metadata and hevc_metadata do.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2019-06-20 01:45:00 +02:00 committed by Mark Thompson
parent 3c8a2a1180
commit 3f81cc8c94
1 changed files with 6 additions and 0 deletions
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6
libavcodec/av1_metadata_bsf.c
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@ -133,6 +133,12 @@ static int av1_metadata_filter(AVBSFContext *bsf, AVPacket *pkt)
goto fail;
}
if (frag->nb_units == 0) {
av_log(bsf, AV_LOG_ERROR, "No OBU in packet.\n");
err = AVERROR_INVALIDDATA;
goto fail;
}
for (i = 0; i < frag->nb_units; i++) {
if (frag->units[i].type == AV1_OBU_SEQUENCE_HEADER) {
obu = frag->units[i].content;