[FFmpeg-devel] [PATCH 3/4] tools/target_dec_fuzzer: Adjust threshold for VP9

Michael Niedermayer michael at niedermayer.cc
Sat Oct 19 01:19:23 EEST 2019


The threshold is chosen so that the worse frames would together not take
excessive time.
A better solution is welcome!

Fixes: Timeout (308sec ->102ms)
Fixes: 18314/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VP9_fuzzer-5701689176227840

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 tools/target_dec_fuzzer.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/target_dec_fuzzer.c b/tools/target_dec_fuzzer.c
index 2a8a35d9da..152b4037e4 100644
--- a/tools/target_dec_fuzzer.c
+++ b/tools/target_dec_fuzzer.c
@@ -158,6 +158,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
     case AV_CODEC_ID_TGV:         maxpixels /= 32;    break;
     case AV_CODEC_ID_TRUEMOTION2: maxpixels /= 1024; break;
     case AV_CODEC_ID_VP7:         maxpixels /= 256;  break;
+    case AV_CODEC_ID_VP9:         maxpixels /= 4096; break;
     }
 
 
-- 
2.23.0



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