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| author | Michael Niedermayer <michael@niedermayer.cc> | 2024-07-01 01:12:43 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2024-07-12 22:44:17 +0200 |
| commit | 032e831ab42d3ce81ffacf77e483621587c5dfa3 (patch) | |
| tree | b1dc9f4276d46a27b66929fcac0b6bc971c739b2 | |
| parent | 0474614e6cf8edcd0077b95772c29fae894a7db9 (diff) | |
| download | ffmpeg-032e831ab42d3ce81ffacf77e483621587c5dfa3.tar.gz | |
tools/target_enc_fuzzer: A64MULTI encoder is very slow, check and adjust threshold
Fixes: Timeout
Fixes: 69097/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_A64MULTI_fuzzer-5062757287264256
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | tools/target_enc_fuzzer.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/tools/target_enc_fuzzer.c b/tools/target_enc_fuzzer.c index 0345595ada..c4c2df93a9 100644 --- a/tools/target_enc_fuzzer.c +++ b/tools/target_enc_fuzzer.c @@ -78,6 +78,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { uint32_t it = 0; uint64_t nb_samples = 0; AVDictionary *opts = NULL; + uint64_t ec_pixels = 0; if (!c) { #define ENCODER_SYMBOL0(CODEC) ff_##CODEC##_encoder @@ -93,6 +94,9 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { return 0; maxpixels = maxpixels_per_frame * maxiteration; + switch (c->p.id) { + case AV_CODEC_ID_A64_MULTI: maxpixels /= 65536; break; + } maxpixels_per_frame = FFMIN(maxpixels_per_frame , maxpixels); @@ -168,6 +172,10 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { frame->height = ctx->height; while (data < end && it < maxiteration) { + ec_pixels += (ctx->width + 32LL) * (ctx->height + 32LL); + if (ec_pixels > maxpixels) + goto maximums_reached; + res = av_frame_get_buffer(frame, 0); if (res < 0) error("Failed av_frame_get_buffer"); @@ -192,7 +200,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { av_packet_unref(avpkt); } - +maximums_reached: encode(ctx, NULL, avpkt); av_packet_unref(avpkt); |