1 /*
2 * Copyright (C) 2019 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <string>
18 #include <stddef.h>
19 #include <audio_utils/spdif/SPDIFEncoder.h>
20 #include <audio_utils/format.h>
21 #include <system/audio.h>
22
23 namespace android {
24
25 class MySPDIFEncoder : public SPDIFEncoder {
26 public:
MySPDIFEncoder(audio_format_t format)27 explicit MySPDIFEncoder(audio_format_t format)
28 : SPDIFEncoder(format) {
29 }
30
writeOutput(const void * buffer,size_t size)31 ssize_t writeOutput(const void* buffer, size_t size) override {
32 if (buffer == nullptr) {
33 return 0;
34 }
35 return size;
36 }
37 };
38
39 const static audio_format_t acs_formats[] = {AUDIO_FORMAT_AC3, AUDIO_FORMAT_E_AC3,
40 AUDIO_FORMAT_E_AC3_JOC};
41 const size_t formats_len = sizeof(acs_formats)/sizeof(audio_format_t);
42
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)43 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
44 if (data == nullptr) {
45 return 0;
46 }
47 audio_format_t encoding = acs_formats[size % formats_len];
48 MySPDIFEncoder scanner(encoding);
49 scanner.isFormatSupported(encoding);
50 scanner.write(data, size); // parsing will be triggered based on sync keywords found in dict
51 scanner.reset();
52 return 0;
53 }
54 }
55