On Thu, Jan 31, 2019 at 1:25 AM Michael Niedermayer <mich...@niedermayer.cc> wrote: > > Changes 19sec to 10ms (12559) runtime, 17sec to 177ms (12570) > Fixes: Timeout > Fixes: > 12559/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AC3_fuzzer-5666516266123264 > Fixes: > 12561/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AC3_FIXED_fuzzer-5682923041193984 > Fixes: > 12570/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_EAC3_fuzzer-5194734308425728 > > Found-by: continuous fuzzing process > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > --- > libavcodec/ac3dec.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/libavcodec/ac3dec.c b/libavcodec/ac3dec.c > index f844a463ee..eaa327a3ee 100644 > --- a/libavcodec/ac3dec.c > +++ b/libavcodec/ac3dec.c > @@ -1490,6 +1490,8 @@ static int ac3_decode_frame(AVCodecContext * avctx, > void *data, > } > if (i >= buf_size) > return AVERROR_INVALIDDATA; > + if (i > 10) > + return i; > buf += i; > buf_size -= i; >
How exactly does this speed up the decoder, anyway? Isn't the garbage immediately skipped right after this return? - Hendrik _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
