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Diffstat (limited to '')
-rw-r--r-- | third_party/libwebrtc/test/fuzzers/comfort_noise_decoder_fuzzer.cc | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/third_party/libwebrtc/test/fuzzers/comfort_noise_decoder_fuzzer.cc b/third_party/libwebrtc/test/fuzzers/comfort_noise_decoder_fuzzer.cc new file mode 100644 index 0000000000..7f44af99fb --- /dev/null +++ b/third_party/libwebrtc/test/fuzzers/comfort_noise_decoder_fuzzer.cc @@ -0,0 +1,59 @@ +/* + * Copyright (c) 2017 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 <algorithm> + +#include "api/array_view.h" +#include "modules/audio_coding/codecs/cng/webrtc_cng.h" +#include "rtc_base/buffer.h" +#include "test/fuzzers/fuzz_data_helper.h" + +namespace webrtc { +namespace test { +namespace { + +void FuzzOneInputTest(rtc::ArrayView<const uint8_t> data) { + FuzzDataHelper fuzz_data(data); + ComfortNoiseDecoder cng_decoder; + + while (1) { + if (!fuzz_data.CanReadBytes(1)) + break; + const uint8_t sid_frame_len = fuzz_data.Read<uint8_t>(); + auto sid_frame = fuzz_data.ReadByteArray(sid_frame_len); + if (sid_frame.empty()) + break; + cng_decoder.UpdateSid(sid_frame); + if (!fuzz_data.CanReadBytes(3)) + break; + constexpr bool kTrueOrFalse[] = {true, false}; + const bool new_period = fuzz_data.SelectOneOf(kTrueOrFalse); + constexpr size_t kOutputSizes[] = {80, 160, 320, 480}; + const size_t output_size = fuzz_data.SelectOneOf(kOutputSizes); + const size_t num_generate_calls = + std::min(fuzz_data.Read<uint8_t>(), static_cast<uint8_t>(17)); + rtc::BufferT<int16_t> output(output_size); + for (size_t i = 0; i < num_generate_calls; ++i) { + cng_decoder.Generate(output, new_period); + } + } +} + +} // namespace +} // namespace test + +void FuzzOneInput(const uint8_t* data, size_t size) { + if (size > 5000) { + return; + } + test::FuzzOneInputTest(rtc::ArrayView<const uint8_t>(data, size)); +} + +} // namespace webrtc |