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/*
* 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
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