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| author | James Almer <jamrial@gmail.com> | 2020-11-14 22:11:17 -0300 |
|---|---|---|
| committer | James Almer <jamrial@gmail.com> | 2020-11-20 12:43:51 -0300 |
| commit | 837eb320b818eec11005ae63eaa777c5ee17f536 (patch) | |
| tree | 46deda78a4e2b7541853e696746318bc200d30fe /tools/target_bsf_fuzzer.c | |
| parent | cb59cd346656376975a1ee87e60e1ea9c3d29ceb (diff) | |
| download | ffmpeg-837eb320b818eec11005ae63eaa777c5ee17f536.tar.gz | |
tools/target_bsf_fuzzer: Call av_bsf_flush() in a fuzzer choosen pattern
This should increase coverage.
Based on a commit by Michael Niedermayer
Signed-off-by: James Almer <jamrial@gmail.com>
Diffstat (limited to 'tools/target_bsf_fuzzer.c')
| -rw-r--r-- | tools/target_bsf_fuzzer.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/target_bsf_fuzzer.c b/tools/target_bsf_fuzzer.c index 5d9f90075d..da8d62dd0b 100644 --- a/tools/target_bsf_fuzzer.c +++ b/tools/target_bsf_fuzzer.c @@ -43,6 +43,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { AVBSFContext *bsf = NULL; AVPacket in, out; uint64_t keyframes = 0; + uint64_t flushpattern = -1; int res; if (!f) { @@ -86,6 +87,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { bsf->par_in->channels = (unsigned)bytestream2_get_le32(&gbc) % FF_SANE_NB_CHANNELS; bsf->par_in->block_align = bytestream2_get_le32(&gbc); keyframes = bytestream2_get_le64(&gbc); + flushpattern = bytestream2_get_le64(&gbc); if (extradata_size < size) { bsf->par_in->extradata = av_mallocz(extradata_size + AV_INPUT_BUFFER_PADDING_SIZE); @@ -128,6 +130,10 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { data += sizeof(fuzz_tag); last = data; + if (!(flushpattern & 7)) + av_bsf_flush(bsf); + flushpattern = (flushpattern >> 3) + (flushpattern << 61); + while (in.size) { res = av_bsf_send_packet(bsf, &in); if (res < 0 && res != AVERROR(EAGAIN)) |