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path: root/tools/target_dec_fuzzer.c
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* avcodec/allcodecs: Provide empty codec_list in allcodecs when ossfuzz is usedMichael Niedermayer2018-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | The last workaround is not sufficient to make oss fuzz work with the iterate API as it did not provide a FFmpeg that external libs can be linked to. This patch does not fully restore the pre iterate functionality. My attempts to do this have so far failed. The problem with this solution is that it renders the fuzzers virtual system ffmpeg (libs) non functional. Which differs from a real system compared to the virtual system tested by the fuzzer. It should theoretically not matter as the system ffmpeg wouldnt be used. But with more cases being fuzzed we likely will hit a case where a external lib is involved and it does matter ... Working around this may be possible with weak symbols but so far my attempts failed Alternatively multiple ffmpeg could be built, this becomes messy though quickly as they need to be all linked together. That is we need a FFmpeg that has the iterate API modified so it can work with the resources available to ossfuzz. And at the same time we need a ffmpeg that has its full functionality for any external libs which use ffmpeg and are used by ffmpeg. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec: Disable new iterate API for ossfuzzMichael Niedermayer2018-05-16
| | | | | | | | | | | | | | | | | A few days ago ossfuzz stoped testing new FFmpeg as it run out of diskspacee https://oss-fuzz-build-logs.storage.googleapis.com/index.html An alternative would be to revert the API. This changes for example -rwxr-x--- 1 michael michael 144803654 May 14 12:54 tools/target_dec_ac3_fixed_fuzzer* to -rwxr-x--- 1 michael michael 30333852 May 14 12:51 tools/target_dec_ac3_fixed_fuzzer* Which should massively decrease space requirements Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* tools/target_dec_fuzzer: Fix build after AV_CODEC_CAP_HWACCEL_VDPAU was removedMichael Niedermayer2017-10-25
| | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* tools/target_dec_fuzzer: Fix build after FF_INPUT_BUFFER_PADDING_SIZE was ↵Michael Niedermayer2017-10-25
| | | | | | removed Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* build: Generalize yasm/nasm-related variable namesDiego Biurrun2017-06-21
| | | | | | | | None of them are specific to the YASM assembler. (Cherry-picked from libav commit 39e208f4d4756367c7cd2d581847e0c1b8a429c1) Signed-off-by: James Almer <jamrial@gmail.com>
* tools/target_dec_fuzzer: Move the hwaccel check outside the initialization ifMichael Niedermayer2017-05-29
| | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* tools/target_dec_fuzzer: Do not attempt to fuzz VDPAU, its not supportedMichael Niedermayer2017-05-06
| | | | | | | | Fixes: 1364/clusterfuzz-testcase-minimized-6459843441328128 Fixes: 1392 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* tools/target_dec_fuzzer: Do not use codec_id to look up decoder, but use ↵Michael Niedermayer2017-05-06
| | | | | | selected decoder directly Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* tools/target_dec_fuzzer: Fix memleak on open failureMichael Niedermayer2017-05-04
| | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* tools/target_dec_fuzzer: Use decoder and not codec_id as argumentMichael Niedermayer2017-05-03
| | | | | | | This allows fuzzing decoders with the same codec_id We also avoid register all to allow the linker to prune unused sections and symbols Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* tools/target_dec_fuzzer: Use avcodec_register_all() instead of register_all()Michael Niedermayer2017-05-02
| | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* tools: Eliminate codec_type complexity from fuzzerMichael Niedermayer2017-04-30
| | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* tools/target_dec_fuzzer: Fix return code on open failureMichael Niedermayer2017-04-27
| | | | | | | Fixes: 1271/clusterfuzz-testcase-minimized-6095220498235392 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* tools/target_dec_fuzzer: Remove FuzzerInterface.h dependancyMichael Niedermayer2017-04-25
| | | | | | | The header is not always available in the docker build environment Suggested-by: Kostya Serebryany Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* tools/target_dec_fuzzer: Fix build with default FFmpeg build flagsMichael Niedermayer2017-04-24
| | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* tools/target_dec_fuzzer: Fuzz video decoder related fields in context.Michael Niedermayer2017-04-19
| | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* tools/target_dec_fuzzer: Fix misaligned readMichael Niedermayer2017-02-24
| | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* tools/target_dec_fuzzer: Only audio uses the return value to decode packets ↵Michael Niedermayer2017-01-31
| | | | | | | | | | in pieces, correct the code to match that Fixes: Timeout Fixes: 483/fuzz-0-ffmpeg_VIDEO_AV_CODEC_ID_H263I_fuzzer Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* doc/examples/decoder_targeted: move to tools/target_dec_fuzzer.cRostislav Pehlivanov2017-01-29
Name and purpose are more appropriate there since the code isn't an ideal example. Reviewed-by: wm4 <nfxjfg@googlemail.com> Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
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