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avcodec/h264_ps: Return error if pps has FMO parameters

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FMO is not supported and fields related to FMO are not parsed, meaning
that any fields which follow will be corrupt.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
Andriy Gelman 2020-02-12 18:36:56 -05:00 committed by James Almer
parent 13dc90396d
commit 018a42790c
1 changed files with 3 additions and 1 deletions
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4
libavcodec/h264_ps.c
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@ -794,7 +794,9 @@ int ff_h264_decode_picture_parameter_set(GetBitContext *gb, AVCodecContext *avct
pps->slice_group_count = get_ue_golomb(gb) + 1;
if (pps->slice_group_count > 1) {
pps->mb_slice_group_map_type = get_ue_golomb(gb);
av_log(avctx, AV_LOG_ERROR, "FMO not supported\n");
avpriv_report_missing_feature(avctx, "FMO");
ret = AVERROR_PATCHWELCOME;
goto fail;
}
pps->ref_count[0] = get_ue_golomb(gb) + 1;
pps->ref_count[1] = get_ue_golomb(gb) + 1;