1 // Copyright 2019 Google Inc.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include "aacdecoder_lib.h"
16 #include <stdint.h>
17
18 #define FILEREAD_MAX_LAYERS 1
19 #define OUT_BUF_SIZE (8 * 2048 * 4)
20
LLVMFuzzerTestOneInput(const uint8_t * Data,size_t Size)21 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
22 HANDLE_AACDECODER aacDecoderInfo = NULL;
23
24 INT_PCM TimeData[OUT_BUF_SIZE];
25 AAC_DECODER_ERROR err;
26 aacDecoderInfo = aacDecoder_Open(TT_MP4_LOAS, FILEREAD_MAX_LAYERS);
27 FDK_ASSERT(aacDecoderInfo != NULL);
28
29 const uint8_t *start = Data;
30 UINT valid, buffer_size;
31
32 do {
33 valid = buffer_size = Data + Size - start;
34 err = aacDecoder_Fill(aacDecoderInfo, const_cast<UCHAR **>(&start),
35 &buffer_size, &valid);
36 start += buffer_size - valid;
37 if (err == AAC_DEC_OK) {
38 do {
39 err = aacDecoder_DecodeFrame(aacDecoderInfo, TimeData, OUT_BUF_SIZE, 0);
40 if (err != AAC_DEC_OK && err != AAC_DEC_NOT_ENOUGH_BITS) {
41 aacDecoder_Close(aacDecoderInfo);
42 aacDecoderInfo = NULL;
43 return 0;
44 }
45 } while (err != AAC_DEC_NOT_ENOUGH_BITS);
46 }
47 } while (valid > 0);
48 aacDecoder_Close(aacDecoderInfo);
49 aacDecoderInfo = NULL;
50 return 0;
51 }
52