[FFmpeg-devel] [PATCH 1/2] tools/target_dec_fuzzer: increase snows threshold

Michael Niedermayer michael at niedermayer.cc
Thu Aug 29 22:46:31 EEST 2019


snow allows creating large output from tiny input, like other
wavelet codecs

Fixes: Timeout (82sec -> 1.5sec)
Fixes: 9520/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SNOW_fuzzer-6286612576075776

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 e22a0c5c34..6d7a4e925a 100644
--- a/tools/target_dec_fuzzer.c
+++ b/tools/target_dec_fuzzer.c
@@ -139,6 +139,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
     case AV_CODEC_ID_HNM4_VIDEO:maxpixels /= 128; break;
         // Cliping in C, generally slow even with small input
     case AV_CODEC_ID_INDEO4:    maxpixels /= 128; break;
+    case AV_CODEC_ID_SNOW:      maxpixels /= 128; break;
     }
 
 
-- 
2.23.0



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