/*
 * Copyright (c) 2025 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#include <cstddef>
#include <cstdint>
#include "native_avcodec_videodecoder.h"
#include "native_averrors.h"
#include "native_avcodec_base.h"
#include "videodec_sample.h"
#include <fuzzer/FuzzedDataProvider.h>
using namespace std;
using namespace OHOS;
using namespace OHOS::Media;
#define FUZZ_PROJECT_NAME "h263swdecoderconfigure_fuzzer"
const size_t EXPECT_SIZE = 6;
namespace OHOS {
void SaveCorpus(const uint8_t *data, size_t size, const std::string& filename)
{
    std::ofstream file(filename, std::ios::out | std::ios::binary);
    if (file.is_open()) {
        file.write(reinterpret_cast<const char*>(data), size);
        file.close();
    }
}

bool H263SwdecoderConfigureFuzzTest(const uint8_t *data, size_t size)
{
    if (size < EXPECT_SIZE) {
        return false;
    }
    bool result = false;
    FuzzedDataProvider fdp(data, size);
    VDecFuzzSample *vDecSample = new VDecFuzzSample();
    std::string filename = "/data/test/corpus-EncoderAPI11H265BFrame10BitFuzzTest";
    SaveCorpus(data, size, filename);
    vDecSample->inpDir = filename.c_str();
    int32_t lengthMin = 176;
    int32_t lengthMax = 4096;
    int32_t frameRateMin = 1;
    int32_t frameRateMax = 1000;
    vDecSample->defaultWidth = std::clamp(fdp.ConsumeIntegral<int32_t>(), lengthMin, lengthMax);
    vDecSample->defaultHeight = std::clamp(fdp.ConsumeIntegral<int32_t>(), lengthMin, lengthMax);
    vDecSample->defaultFrameRate = std::clamp(fdp.ConsumeIntegral<int32_t>(), frameRateMin, frameRateMax);
    std::vector<int32_t> rotations = {0, 90, 180, 270};
    size_t index = fdp.ConsumeIntegralInRange<size_t>(0, rotations.size() - 1);
    vDecSample->defaultRotation = rotations[index];
    std::vector<int32_t> pixelFormats = {1, 2, 3, 4, 5};
    size_t pfIndex = fdp.ConsumeIntegralInRange<size_t>(0, pixelFormats.size() - 1);
    vDecSample->defaultPixelFormat = pixelFormats[pfIndex];
    size_t maxSize = std::numeric_limits<size_t>::max();
    vDecSample->randomName = fdp.ConsumeRandomLengthString(maxSize);
    vDecSample->randomMime = fdp.ConsumeRandomLengthString(maxSize);
    if (vDecSample->CreateVideoDecoder("OH.Media.Codec.Decoder.Video.H263") != AV_ERR_OK) {
        delete vDecSample;
        return false;
    }
    if (vDecSample->ConfigureVideoDecoder() != AV_ERR_OK) {
        delete vDecSample;
        return false;
    }
    if (vDecSample->SetVideoDecoderCallback() != AV_ERR_OK) {
        delete vDecSample;
        return false;
    }
    if (vDecSample->StartVideoDecoder() != AV_ERR_OK) {
        delete vDecSample;
        return false;
    }
    vDecSample->WaitForEOS();
    vDecSample->Release();
    delete vDecSample;
    return result;
}
} // namespace OHOS

/* Fuzzer entry point */
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
    /* Run your code on data */
    OHOS::H263SwdecoderConfigureFuzzTest(data, size);
    return 0;
}