ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Fri Mar 25 15:29:26 2016 +0100| [c50be7a52bc1e8e18a0059e489743ec12a43f257] | committer: Michael Niedermayer
avcodec/h264_slice: Check PPS more extensively when its not copied Fixes Ticket5371 Fixes null pointer dereference Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c50be7a52bc1e8e18a0059e489743ec12a43f257 --- libavcodec/h264_slice.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/libavcodec/h264_slice.c b/libavcodec/h264_slice.c index 9a5bc3f..c6d5f37 100644 --- a/libavcodec/h264_slice.c +++ b/libavcodec/h264_slice.c @@ -1282,9 +1282,13 @@ int ff_h264_decode_slice_header(H264Context *h, H264SliceContext *sl) if (first_slice) { h->pps = *h->pps_buffers[pps_id]; - } else if (h->setup_finished && h->dequant_coeff_pps != pps_id) { - av_log(h->avctx, AV_LOG_ERROR, "PPS changed between slices\n"); - return AVERROR_INVALIDDATA; + } else { + if (h->pps.sps_id != pps->sps_id || + h->pps.transform_8x8_mode != pps->transform_8x8_mode || + (h->setup_finished && h->dequant_coeff_pps != pps_id)) { + av_log(h->avctx, AV_LOG_ERROR, "PPS changed between slices\n"); + return AVERROR_INVALIDDATA; + } } if (pps->sps_id != h->sps.sps_id || _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
