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tools/target_dec_fuzzer: limit per frame samples for APE

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APE in its highest compression mode is really slow so even one frame
of millions of samples takes a long time

Fixes: Timeout (too long -> 3sec)
Fixes: 19937/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5751668818051072

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2020-01-10 22:39:47 +01:00
parent 1cd4184020
commit 32522b5307
1 changed files with 4 additions and 1 deletions
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5
tools/target_dec_fuzzer.c
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@ -93,7 +93,7 @@ const uint32_t maxiteration = 8096;
const uint64_t maxpixels_per_frame = 4096 * 4096; const uint64_t maxpixels_per_frame = 4096 * 4096;
uint64_t maxpixels; uint64_t maxpixels;
const uint64_t maxsamples_per_frame = 256*1024*32; uint64_t maxsamples_per_frame = 256*1024*32;
uint64_t maxsamples; uint64_t maxsamples;
static const uint64_t FUZZ_TAG = 0x4741542D5A5A5546ULL; static const uint64_t FUZZ_TAG = 0x4741542D5A5A5546ULL;
@ -133,6 +133,9 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
case AVMEDIA_TYPE_VIDEO : decode_handler = avcodec_decode_video2; break; case AVMEDIA_TYPE_VIDEO : decode_handler = avcodec_decode_video2; break;
case AVMEDIA_TYPE_SUBTITLE: decode_handler = subtitle_handler ; break; case AVMEDIA_TYPE_SUBTITLE: decode_handler = subtitle_handler ; break;
} }
switch (c->id) {
case AV_CODEC_ID_APE: maxsamples_per_frame /= 256; break;
}
maxpixels = maxpixels_per_frame * maxiteration; maxpixels = maxpixels_per_frame * maxiteration;
maxsamples = maxsamples_per_frame * maxiteration; maxsamples = maxsamples_per_frame * maxiteration;
switch (c->id) { switch (c->id) {