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110 lines
2.7 KiB
110 lines
2.7 KiB
/**
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// This PoC is written using aac_dec_fuzzer.cpp as reference.
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#include "aacdecoder_lib.h"
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#include <stdlib.h>
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constexpr uint8_t kNumberOfLayers = 1;
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constexpr uint8_t kMaxChannelCount = 8;
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constexpr uint8_t kConfigBytes = 92;
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constexpr uint32_t kMaxOutBufferSize = 2048 * kMaxChannelCount;
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class Codec {
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public:
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Codec() = default;
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~Codec() { deInitDecoder(); }
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bool initDecoder();
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void decodeFrames(UCHAR *data, UINT size);
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void deInitDecoder();
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private:
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HANDLE_AACDECODER mAacDecoderHandle = nullptr;
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AAC_DECODER_ERROR mErrorCode = AAC_DEC_OK;
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bool mConfigFlag = false;
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};
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bool Codec::initDecoder() {
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mAacDecoderHandle = aacDecoder_Open(TT_MP4_ADIF, kNumberOfLayers);
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if (!mAacDecoderHandle) {
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return false;
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}
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return true;
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}
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void Codec::deInitDecoder() {
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aacDecoder_Close(mAacDecoderHandle);
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mAacDecoderHandle = nullptr;
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}
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void Codec::decodeFrames(UCHAR *data, UINT size) {
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while (size > 0) {
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UINT inputSize = size;
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UINT valid = size;
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if (!mConfigFlag) {
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inputSize = kConfigBytes;
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aacDecoder_ConfigRaw(mAacDecoderHandle, &data, &inputSize);
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data += kConfigBytes;
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size -= kConfigBytes;
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mConfigFlag = true;
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continue;
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}
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aacDecoder_Fill(mAacDecoderHandle, &data, &inputSize, &valid);
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INT_PCM outputBuf[kMaxOutBufferSize];
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do {
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mErrorCode = aacDecoder_DecodeFrame(mAacDecoderHandle, outputBuf, kMaxOutBufferSize, 0);
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} while (mErrorCode == AAC_DEC_OK);
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UINT offset = inputSize - valid;
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data += offset;
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size = valid;
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}
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}
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int main(int argc, char *argv[]) {
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if (argc != 2) {
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return EXIT_FAILURE;
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}
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FILE *fp = fopen(argv[1], "rb");
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if (!fp) {
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return EXIT_FAILURE;
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}
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fseek(fp, 0, SEEK_END);
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UINT size = ftell(fp);
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fseek(fp, 0, SEEK_SET);
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UCHAR *data = new UCHAR[size];
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fread(data, sizeof(UCHAR), size, fp);
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fclose(fp);
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fp = nullptr;
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Codec *codec = new Codec();
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if (!codec) {
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delete[] data;
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return EXIT_FAILURE;
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}
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if (codec->initDecoder()) {
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codec->decodeFrames((UCHAR *)(data), static_cast<UINT>(size));
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}
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delete codec;
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delete[] data;
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return EXIT_SUCCESS;
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}
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