ffmpeg | branch: master | Dai, Jianhui J <jianhui.j.dai-at-intel....@ffmpeg.org> | Tue Mar 19 06:05:17 2024 +0000| [61afe4d98ce62d9dfc6f0548e18730ba2f621cc2] | committer: Ronald S. Bultje
avcodec/cbs_vp8: Improve the bitstream position check The VP8 compressed header may not be byte-aligned due to boolean coding. Round up byte count for accurate data positioning. Signed-off-by: Jianhui Dai <jianhui.j....@intel.com> Signed-off-by: Ronald S. Bultje <rsbul...@gmail.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=61afe4d98ce62d9dfc6f0548e18730ba2f621cc2 --- libavcodec/cbs_vp8.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/libavcodec/cbs_vp8.c b/libavcodec/cbs_vp8.c index afa2e4f980..1f80f34faf 100644 --- a/libavcodec/cbs_vp8.c +++ b/libavcodec/cbs_vp8.c @@ -339,7 +339,9 @@ static int cbs_vp8_read_unit(CodedBitstreamContext *ctx, return err; pos = get_bits_count(&gbc); - pos /= 8; + // Position may not be byte-aligned after compressed header; Round up byte + // count for accurate data positioning. + pos = (pos + 7) / 8; av_assert0(pos <= unit->data_size); frame->data_ref = av_buffer_ref(unit->data_ref); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
