1 /* 2 * Copyright (c) 2022 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #include <memory> 12 13 #include "modules/audio_coding/codecs/pcm16b/audio_decoder_pcm16b.h" 14 #include "test/fuzzers/audio_decoder_fuzzer.h" 15 16 namespace webrtc { FuzzOneInput(const uint8_t * data,size_t size)17void FuzzOneInput(const uint8_t* data, size_t size) { 18 if (size > 10000 || size < 2) { 19 return; 20 } 21 22 int sample_rate_hz; 23 switch (data[0] % 4) { 24 case 0: 25 sample_rate_hz = 8000; 26 break; 27 case 1: 28 sample_rate_hz = 16000; 29 break; 30 case 2: 31 sample_rate_hz = 32000; 32 break; 33 case 3: 34 sample_rate_hz = 48000; 35 break; 36 default: 37 RTC_DCHECK_NOTREACHED(); 38 return; 39 } 40 const size_t num_channels = data[1] % 16 + 1; 41 42 // Two first bytes of the data are used. Move forward. 43 data += 2; 44 size -= 2; 45 46 AudioDecoderPcm16B dec(sample_rate_hz, num_channels); 47 // Allocate a maximum output size of 100 ms. 48 const size_t allocated_ouput_size_samples = 49 sample_rate_hz * num_channels / 10; 50 std::unique_ptr<int16_t[]> output = 51 std::make_unique<int16_t[]>(allocated_ouput_size_samples); 52 FuzzAudioDecoder( 53 DecoderFunctionType::kNormalDecode, data, size, &dec, sample_rate_hz, 54 allocated_ouput_size_samples * sizeof(int16_t), output.get()); 55 } 56 } // namespace webrtc 57