Fixes: Timeout (14sec -> 9sec) Fixes: 13398/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FFV1_fuzzer-5664106709778432
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/ffv1dec_template.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/libavcodec/ffv1dec_template.c b/libavcodec/ffv1dec_template.c index 1b7f6c4bf5..0b1d176ba1 100644 --- a/libavcodec/ffv1dec_template.c +++ b/libavcodec/ffv1dec_template.c @@ -86,11 +86,19 @@ static av_always_inline int RENAME(decode_line)(FFV1Context *s, int w, run_mode = 2; } } + if (sample[1][x - 1] == sample[0][x - 1]) { + while (run_count > 1 && w-x > 1) { + sample[1][x] = sample[0][x]; + x++; + run_count--; + } + } else { while (run_count > 1 && w-x > 1) { sample[1][x] = RENAME(predict)(sample[1] + x, sample[0] + x); x++; run_count--; } + } run_count--; if (run_count < 0) { run_mode = 0; -- 2.21.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
