1 /*
2 * Copyright (c) 2025 Huawei Device Co., Ltd.
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
16 #include <cstddef>
17 #include <cstdint>
18 #include <fuzzer/FuzzedDataProvider.h>
19 #include "native_avcodec_base.h"
20 #include "native_avcodec_videodecoder.h"
21 #include "native_averrors.h"
22 #include "videodec_sample.h"
23
24 #define FUZZ_PROJECT_NAME "h263swdecoderresource_fuzzer"
25
26 using namespace std;
27 using namespace OHOS;
28 using namespace OHOS::Media;
29
30 static VDecFuzzSample *vDecSample = nullptr;
31
32 namespace OHOS {
33
Release()34 void Release()
35 {
36 vDecSample->Release();
37 delete vDecSample;
38 vDecSample = nullptr;
39 }
H263SwdecoderFuzzTest(const uint8_t * data,size_t size)40 bool H263SwdecoderFuzzTest(const uint8_t *data, size_t size)
41 {
42 FuzzedDataProvider fdp(data, size);
43 if (!vDecSample) {
44 vDecSample = new VDecFuzzSample();
45 double frameRateMin = 1.0;
46 double frameRateMax = 1000.0;
47 vDecSample->defaultWidth = std::clamp(fdp.ConsumeIntegral<uint32_t>(), 176u, 4096u);
48 vDecSample->defaultHeight = std::clamp(fdp.ConsumeIntegral<uint32_t>(), 176u, 4096u);
49 vDecSample->defaultFrameRate = std::clamp(fdp.ConsumeFloatingPoint<double>(), frameRateMin, frameRateMax);
50 if (vDecSample->CreateVideoDecoder("OH.Media.Codec.Decoder.Video.H263") != AV_ERR_OK) {
51 Release();
52 return false;
53 }
54 int32_t ret = vDecSample->ConfigureVideoDecoder();
55 if (ret != AV_ERR_OK) {
56 Release();
57 return false;
58 }
59 ret = vDecSample->SetVideoDecoderCallback();
60 if (ret != AV_ERR_OK) {
61 Release();
62 return false;
63 }
64 ret = vDecSample->Start();
65 if (ret != AV_ERR_OK) {
66 Release();
67 return false;
68 }
69 }
70 OH_AVErrCode ret = vDecSample->InputFuncFUZZ(data, size);
71 if (ret != AV_ERR_OK) {
72 vDecSample->Flush();
73 vDecSample->Stop();
74 vDecSample->Reset();
75 Release();
76 return false;
77 }
78 return true;
79 }
80 } // namespace OHOS
81
82 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)83 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
84 {
85 /* Run your code on data */
86 OHOS::H263SwdecoderFuzzTest(data, size);
87 return 0;
88 }
89