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Diffstat (limited to 'third_party/libwebrtc/test/fuzzers/audio_decoder_multistream_opus_fuzzer.cc')
-rw-r--r-- | third_party/libwebrtc/test/fuzzers/audio_decoder_multistream_opus_fuzzer.cc | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/third_party/libwebrtc/test/fuzzers/audio_decoder_multistream_opus_fuzzer.cc b/third_party/libwebrtc/test/fuzzers/audio_decoder_multistream_opus_fuzzer.cc new file mode 100644 index 0000000000..474a1cdc43 --- /dev/null +++ b/third_party/libwebrtc/test/fuzzers/audio_decoder_multistream_opus_fuzzer.cc @@ -0,0 +1,61 @@ +/* + * Copyright (c) 2019 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include "api/audio_codecs/opus/audio_decoder_multi_channel_opus.h" +#include "api/audio_codecs/opus/audio_decoder_multi_channel_opus_config.h" +#include "test/fuzzers/audio_decoder_fuzzer.h" + +namespace webrtc { + +AudioDecoderMultiChannelOpusConfig MakeDecoderConfig( + int num_channels, + int num_streams, + int coupled_streams, + std::vector<unsigned char> channel_mapping) { + AudioDecoderMultiChannelOpusConfig config; + config.num_channels = num_channels; + config.num_streams = num_streams; + config.coupled_streams = coupled_streams; + config.channel_mapping = channel_mapping; + return config; +} + +void FuzzOneInput(const uint8_t* data, size_t size) { + const std::vector<AudioDecoderMultiChannelOpusConfig> surround_configs = { + MakeDecoderConfig(1, 1, 0, {0}), // Mono + + MakeDecoderConfig(2, 2, 0, {0, 0}), // Copy the first (of + // 2) decoded streams + // into both output + // channel 0 and output + // channel 1. Ignore + // the 2nd decoded + // stream. + + MakeDecoderConfig(4, 2, 2, {0, 1, 2, 3}), // Quad. + MakeDecoderConfig(6, 4, 2, {0, 4, 1, 2, 3, 5}), // 5.1 + MakeDecoderConfig(8, 5, 3, {0, 6, 1, 2, 3, 4, 5, 7}) // 7.1 + }; + + const auto config = surround_configs[data[0] % surround_configs.size()]; + RTC_CHECK(config.IsOk()); + std::unique_ptr<AudioDecoder> dec = + AudioDecoderMultiChannelOpus::MakeAudioDecoder(config); + RTC_CHECK(dec); + const int kSampleRateHz = 48000; + const size_t kAllocatedOuputSizeSamples = + 4 * kSampleRateHz / 10; // 4x100 ms, 4 times the size of the output array + // for the stereo Opus codec. It should be enough + // for 8 channels. + int16_t output[kAllocatedOuputSizeSamples]; + FuzzAudioDecoder(DecoderFunctionType::kNormalDecode, data, size, dec.get(), + kSampleRateHz, sizeof(output), output); +} +} // namespace webrtc |