[FFmpeg-cvslog] tools/target_dec_fuzzer: Update maxpixels_per_frame for low thresholds

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Mon Feb  1 21:08:57 2021 +0100| [be0c72b7c29324f42afd14f150eb9cdb83788ca0] | committer: Michael Niedermayer

tools/target_dec_fuzzer: Update maxpixels_per_frame for low thresholds

Fixes: Timeout
Fixes: 29990/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MSS2_fuzzer-5469155073589248

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=be0c72b7c29324f42afd14f150eb9cdb83788ca0
---

 tools/target_dec_fuzzer.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/target_dec_fuzzer.c b/tools/target_dec_fuzzer.c
index d4b9f419de..1977f1ab12 100644
--- a/tools/target_dec_fuzzer.c
+++ b/tools/target_dec_fuzzer.c
@@ -98,7 +98,7 @@ static int audio_video_handler(AVCodecContext *avctx, AVFrame *frame,
 
 // Ensure we don't loop forever
 const uint32_t maxiteration = 8096;
-const uint64_t maxpixels_per_frame = 4096 * 4096;
+uint64_t maxpixels_per_frame = 4096 * 4096;
 uint64_t maxpixels;
 
 uint64_t maxsamples_per_frame = 256*1024*32;
@@ -197,6 +197,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
     }
 
     maxsamples_per_frame = FFMIN(maxsamples_per_frame, maxsamples);
+    maxpixels_per_frame  = FFMIN(maxpixels_per_frame , maxpixels);
 
     AVCodecContext* ctx = avcodec_alloc_context3(c);
     AVCodecContext* parser_avctx = avcodec_alloc_context3(NULL);