1 /****************************************************************************** 2 * 3 * Copyright 2022 Google LLC 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ******************************************************************************/ 18 19 #include <lc3_cpp.h> 20 #include <fuzzer/FuzzedDataProvider.h> 21 22 using namespace lc3; 23 24 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) 25 { 26 const int dt_list[] = { 2500, 5000, 7500, 10000 }; 27 const int sr_list[] = { 8000, 16000, 24000, 32000, 48000, 96000 }; 28 29 FuzzedDataProvider fdp(data, size); 30 31 int dt_us = fdp.PickValueInArray(dt_list); 32 int sr_hz = fdp.PickValueInArray(sr_list); 33 int nchannels =fdp.PickValueInArray({1, 2}); 34 bool hrmode = fdp.ConsumeBool(); 35 36 int sr_pcm_hz = fdp.PickValueInArray(sr_list); 37 if (sr_pcm_hz < sr_hz) 38 sr_pcm_hz = 0; 39 40 Decoder dec(dt_us, sr_hz, sr_pcm_hz, nchannels, hrmode); 41 42 int frame_size = fdp.ConsumeIntegralInRange( 43 LC3_MIN_FRAME_BYTES, LC3_MAX_FRAME_BYTES); 44 45 PcmFormat fmt = fdp.PickValueInArray( 46 { PcmFormat::kS16, PcmFormat::kS24, 47 PcmFormat::kS24In3Le, PcmFormat::kF32 }); 48 49 int frame_samples = dec.GetFrameSamples(); 50 if (frame_samples < 0) 51 return -1; 52 53 int sample_bytes = 54 fmt == PcmFormat::kS16 ? sizeof(int16_t) : 55 fmt == PcmFormat::kS24 ? sizeof(int32_t) : 56 fmt == PcmFormat::kS24In3Le ? sizeof(uint8_t) * 3 : 57 fmt == PcmFormat::kF32 ? sizeof(float) : 0; 58 59 if (fdp.remaining_bytes() < frame_size * nchannels) 60 return -1; 61 62 dec.Decode( 63 fdp.ConsumeBytes<uint8_t>(nchannels * frame_size).data(), frame_size, 64 fmt, std::vector<uint8_t>(nchannels * frame_samples * sample_bytes).data()); 65 66 return 0; 67 } 68