mpeg4swdecoder/src/videodec_api11_sample.cpp

/*
 * 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 <arpa/inet.h>
#include <sys/time.h>
#include <utility>
#include "openssl/crypto.h"
#include "openssl/sha.h"
#include "videodec_api11_sample.h"
using namespace OHOS;
using namespace OHOS::Media;
using namespace std;
namespace {
constexpr int64_t NANOS_IN_SECOND = 1000000000L;
constexpr int64_t MICRO_IN_SECOND = 1000000L;
constexpr int64_t NANOS_IN_MICRO = 1000L;
constexpr uint32_t START_CODE_SIZE = 4;
constexpr uint32_t MILLION = 1000000;
constexpr uint8_t MPEG4_FRAME_HEAD[] = {0x00, 0x00, 0x01, 0xb6};
constexpr uint8_t MPEG4_SEQUENCE_HEAD[] = {0x00, 0x00, 0x01, 0xb0};
constexpr uint32_t PREREAD_BUFFER_SIZE = 0.1 * 1024 * 1024;
constexpr uint32_t THREE = 3;
constexpr uint32_t TEN = 10;
constexpr int32_t RES_CHANGE_TIME = 4;
constexpr int32_t CROP_INFO_SIZE = 2;
constexpr uint32_t MAX_WIDTH = 4000;
constexpr uint32_t MAX_HEIGHT = 3000;
constexpr uint32_t MAX_NALU_SIZE = MAX_WIDTH * MAX_HEIGHT << 1;
constexpr int32_t CROP_INFO[RES_CHANGE_TIME][CROP_INFO_SIZE] = {{621, 1103},
    {1079, 1919}, {719, 1279}, {855, 1919}};

constexpr int32_t CROP_BOTTOM = 0;
constexpr int32_t CROP_RIGHT = 1;
constexpr int32_t DEFAULT_ANGLE = 90;
SHA512_CTX g_c;
unsigned char g_md[SHA512_DIGEST_LENGTH];
VDecAPI11Sample *dec_sample = nullptr;

void clearIntqueue(std::queue<uint32_t> &q)
{
    std::queue<uint32_t> empty;
    swap(empty, q);
}

void clearBufferqueue(std::queue<OH_AVCodecBufferAttr> &q)
{
    std::queue<OH_AVCodecBufferAttr> empty;
    swap(empty, q);
}
} // namespace

class ConsumerListenerBuffer : public IBufferConsumerListener {
public:
    ConsumerListenerBuffer(sptr<Surface> cs, std::string_view name) : cs(cs) {};
    ~ConsumerListenerBuffer() {}
    void OnBufferAvailable() override
    {
        sptr<SurfaceBuffer> buffer;
        int32_t flushFence;
        cs->AcquireBuffer(buffer, flushFence, timestamp, damage);
        cs->ReleaseBuffer(buffer, -1);
    }

private:
    int64_t timestamp = 0;
    Rect damage = {};
    sptr<Surface> cs {nullptr};
};

VDecAPI11Sample::~VDecAPI11Sample()
{
    for (int i = 0; i < MAX_SURF_NUM; i++) {
        if (nativeWindow[i]) {
            OH_NativeWindow_DestroyNativeWindow(nativeWindow[i]);
            nativeWindow[i] = nullptr;
        }
    }
    Stop();
    Release();
}

void VdecAPI11Error(OH_AVCodec *codec, int32_t errorCode, void *userData)
{
    cout << "Error errorCode=" << errorCode << endl;
}

void VdecAPI11FormatChanged(OH_AVCodec *codec, OH_AVFormat *format, void *userData)
{
    int32_t currentWidth = 0;
    int32_t currentHeight = 0;
    OH_AVFormat_GetIntValue(format, OH_MD_KEY_WIDTH, &currentWidth);
    OH_AVFormat_GetIntValue(format, OH_MD_KEY_HEIGHT, &currentHeight);
    dec_sample->DEFAULT_WIDTH = currentWidth;
    dec_sample->DEFAULT_HEIGHT = currentHeight;
    if (dec_sample->isResChangeStream) {
        static int32_t resCount = 0;
        int32_t cropBottom = 0;
        int32_t cropRight = 0;
        int32_t stride = 0;
        int32_t sliceHeight = 0;
        OH_AVFormat_GetIntValue(format, OH_MD_KEY_VIDEO_CROP_BOTTOM, &cropBottom);
        OH_AVFormat_GetIntValue(format, OH_MD_KEY_VIDEO_CROP_RIGHT, &cropRight);
        OH_AVFormat_GetIntValue(format, OH_MD_KEY_VIDEO_STRIDE, &stride);
        OH_AVFormat_GetIntValue(format, OH_MD_KEY_VIDEO_SLICE_HEIGHT, &sliceHeight);
        if (cropBottom != CROP_INFO[resCount][CROP_BOTTOM] || cropRight != CROP_INFO[resCount][CROP_RIGHT]) {
            dec_sample->errCount++;
        }
        if (stride <= 0 || sliceHeight <= 0) {
            dec_sample->errCount++;
        }
        resCount++;
    }
}

void VdecAPI11InputDataReady(OH_AVCodec *codec, uint32_t index, OH_AVBuffer *data, void *userData)
{
    if (dec_sample->inputCallbackFlush && dec_sample->outCount > 1) {
        OH_VideoDecoder_Flush(codec);
        cout << "OH_VideoDecoder_Flush end" << endl;
        dec_sample->isRunning_.store(false);
        dec_sample->signal_->inCond_.notify_all();
        dec_sample->signal_->outCond_.notify_all();
        return;
    }
    if (dec_sample->inputCallbackStop && dec_sample->outCount > 1) {
        OH_VideoDecoder_Stop(codec);
        cout << "OH_VideoDecoder_Stop end" << endl;
        dec_sample->isRunning_.store(false);
        dec_sample->signal_->inCond_.notify_all();
        dec_sample->signal_->outCond_.notify_all();
        return;
    }
    VDecAPI11Signal *signal = static_cast<VDecAPI11Signal *>(userData);
    unique_lock<mutex> lock(signal->inMutex_);
    signal->inIdxQueue_.push(index);
    signal->inBufferQueue_.push(data);
    signal->inCond_.notify_all();
}

void VdecAPI11OutputDataReady(OH_AVCodec *codec, uint32_t index, OH_AVBuffer *data, void *userData)
{
    if (dec_sample->outputCallbackFlush && dec_sample->outCount > 1) {
        OH_VideoDecoder_Flush(codec);
        cout << "OH_VideoDecoder_Flush end" << endl;
        dec_sample->isRunning_.store(false);
        dec_sample->signal_->inCond_.notify_all();
        dec_sample->signal_->outCond_.notify_all();
        return;
    }
    if (dec_sample->outputCallbackStop && dec_sample->outCount > 1) {
        OH_VideoDecoder_Stop(codec);
        cout << "OH_VideoDecoder_Stop end" << endl;
        dec_sample->isRunning_.store(false);
        dec_sample->signal_->inCond_.notify_all();
        dec_sample->signal_->outCond_.notify_all();
        return;
    }
    VDecAPI11Signal *signal = static_cast<VDecAPI11Signal *>(userData);
    unique_lock<mutex> lock(signal->outMutex_);
    signal->outIdxQueue_.push(index);
    signal->outBufferQueue_.push(data);
    signal->outCond_.notify_all();
}

void VDecAPI11Sample::Flush_buffer()
{
    unique_lock<mutex> inLock(signal_->inMutex_);
    clearIntqueue(signal_->inIdxQueue_);
    std::queue<OH_AVBuffer *> empty;
    swap(empty, signal_->inBufferQueue_);
    signal_->inCond_.notify_all();
    inLock.unlock();
    unique_lock<mutex> outLock(signal_->outMutex_);
    clearIntqueue(signal_->outIdxQueue_);
    clearBufferqueue(signal_->attrQueue_);
    signal_->outCond_.notify_all();
    outLock.unlock();
}

bool VDecAPI11Sample::MdCompare(unsigned char buffer[], int len, const char *source[])
{
    bool result = true;
    for (int i = 0; i < len; i++) {
    }
    return result;
}

int64_t VDecAPI11Sample::GetSystemTimeUs()
{
    struct timespec now;
    (void)clock_gettime(CLOCK_BOOTTIME, &now);
    int64_t nanoTime = (int64_t)now.tv_sec * NANOS_IN_SECOND + now.tv_nsec;
    return nanoTime / NANOS_IN_MICRO;
}

int32_t VDecAPI11Sample::ConfigureVideoDecoder()
{
    if (autoSwitchSurface) {
        switchSurfaceFlag = (switchSurfaceFlag == 1) ? 0 : 1;
        if (OH_VideoDecoder_SetSurface(vdec_, nativeWindow[switchSurfaceFlag]) != AV_ERR_INVALID_STATE) {
            errCount++;
        }
    }
    OH_AVFormat *format = OH_AVFormat_Create();
    if (format == nullptr) {
        cout << "Fatal: Failed to create format" << endl;
        return AV_ERR_UNKNOWN;
    }
    if (maxInputSize > 0) {
        (void)OH_AVFormat_SetIntValue(format, OH_MD_KEY_MAX_INPUT_SIZE, maxInputSize);
    }
    originalWidth = DEFAULT_WIDTH;
    originalHeight = DEFAULT_HEIGHT;
    (void)OH_AVFormat_SetIntValue(format, OH_MD_KEY_WIDTH, DEFAULT_WIDTH);
    (void)OH_AVFormat_SetIntValue(format, OH_MD_KEY_HEIGHT, DEFAULT_HEIGHT);
    (void)OH_AVFormat_SetIntValue(format, OH_MD_KEY_PIXEL_FORMAT, defualtPixelFormat);
    (void)OH_AVFormat_SetDoubleValue(format, OH_MD_KEY_FRAME_RATE, DEFAULT_FRAME_RATE);
    if (useHDRSource) {
        (void)OH_AVFormat_SetIntValue(format, OH_MD_KEY_PROFILE, DEFAULT_PROFILE);
    }
    (void)OH_AVFormat_SetIntValue(format, OH_MD_KEY_ENABLE_SYNC_MODE, enbleSyncMode);
    (void)OH_AVFormat_SetIntValue(format, OH_MD_KEY_VIDEO_DECODER_BLANK_FRAME_ON_SHUTDOWN, enbleBlankFrame);
    int ret = OH_VideoDecoder_Configure(vdec_, format);
    OH_AVFormat_Destroy(format);
    return ret;
}

void VDecAPI11Sample::CreateSurface()
{
    cs[0] = Surface::CreateSurfaceAsConsumer();
    sptr<IBufferConsumerListener> listener = new ConsumerListenerBuffer(cs[0], OUT_DIR);
    cs[0]->RegisterConsumerListener(listener);
    auto p = cs[0]->GetProducer();
    ps[0] = Surface::CreateSurfaceAsProducer(p);
    nativeWindow[0] = CreateNativeWindowFromSurface(&ps[0]);
    if (autoSwitchSurface)  {
        cs[1] = Surface::CreateSurfaceAsConsumer();
        sptr<IBufferConsumerListener> listener2 = new ConsumerListenerBuffer(cs[1], OUT_DIR2);
        cs[1]->RegisterConsumerListener(listener2);
        auto p2 = cs[1]->GetProducer();
        ps[1] = Surface::CreateSurfaceAsProducer(p2);
        nativeWindow[1] = CreateNativeWindowFromSurface(&ps[1]);
    }
}

int32_t VDecAPI11Sample::RunVideoDec_Surface(string codeName)
{
    SF_OUTPUT = true;
    int err = AV_ERR_OK;
    CreateSurface();
    if (!nativeWindow[0]) {
        cout << "Failed to create surface" << endl;
        return AV_ERR_UNKNOWN;
    }
    err = CreateVideoDecoder(codeName);
    if (err != AV_ERR_OK) {
        cout << "Failed to create video decoder" << endl;
        return err;
    }
    err = SetVideoDecoderCallback();
    if (err != AV_ERR_OK) {
        cout << "Failed to setCallback" << endl;
        Release();
        return err;
    }
    err = ConfigureVideoDecoder();
    if (err != AV_ERR_OK) {
        cout << "Failed to configure video decoder" << endl;
        Release();
        return err;
    }
    err = OH_VideoDecoder_SetSurface(vdec_, nativeWindow[0]);
    if (err != AV_ERR_OK) {
        cout << "Failed to set surface" << endl;
        return err;
    }
    err = StartVideoDecoder();
    if (err != AV_ERR_OK) {
        cout << "Failed to start video decoder" << endl;
        Release();
        return err;
    }
    return err;
}

int32_t VDecAPI11Sample::RunVideoDec(string codeName)
{
    SF_OUTPUT = false;
    int err = CreateVideoDecoder(codeName);
    if (err != AV_ERR_OK) {
        cout << "Failed to create video decoder" << endl;
        return err;
    }

    err = ConfigureVideoDecoder();
    if (err != AV_ERR_OK) {
        cout << "Failed to configure video decoder" << endl;
        Release();
        return err;
    }

    err = SetVideoDecoderCallback();
    if (err != AV_ERR_OK) {
        cout << "Failed to setCallback" << endl;
        Release();
        return err;
    }

    err = StartVideoDecoder();
    if (err != AV_ERR_OK) {
        cout << "Failed to start video decoder" << endl;
        Release();
        return err;
    }
    return err;
}

int32_t VDecAPI11Sample::SetVideoDecoderCallback()
{
    signal_ = new VDecAPI11Signal();
    if (signal_ == nullptr) {
        cout << "Failed to new VDecAPI11Signal" << endl;
        return AV_ERR_UNKNOWN;
    }

    cb_.onError = VdecAPI11Error;
    cb_.onStreamChanged = VdecAPI11FormatChanged;
    cb_.onNeedInputBuffer = VdecAPI11InputDataReady;
    cb_.onNewOutputBuffer = VdecAPI11OutputDataReady;
    return OH_VideoDecoder_RegisterCallback(vdec_, cb_, static_cast<void *>(signal_));
}

void VDecAPI11Sample::ReleaseInFile()
{
    if (inFile_ != nullptr) {
        if (inFile_->is_open()) {
            inFile_->close();
        }
        inFile_.reset();
        inFile_ = nullptr;
        mpegUnit_.reset();
        mpegUnit_ = nullptr;
        prereadBuffer_.reset();
        prereadBuffer_ = nullptr;
    }
}

void VDecAPI11Sample::StopInloop()
{
    if (inputLoop_ != nullptr && inputLoop_->joinable()) {
        unique_lock<mutex> lock(signal_->inMutex_);
        clearIntqueue(signal_->inIdxQueue_);
        isRunning_.store(false);
        signal_->inCond_.notify_all();
        lock.unlock();

        inputLoop_->join();
        inputLoop_.reset();
    }
}

int32_t VDecAPI11Sample::CreateVideoDecoder(string codeName)
{
    vdec_ = OH_VideoDecoder_CreateByName(codeName.c_str());
    dec_sample = this;
    return vdec_ == nullptr ? AV_ERR_UNKNOWN : AV_ERR_OK;
}

int32_t VDecAPI11Sample::StartVideoDecoder()
{
    isRunning_.store(true);
    int ret = OH_VideoDecoder_Start(vdec_);
    if (ret != AV_ERR_OK) {
        cout << "Failed to start codec" << endl;
        isRunning_.store(false);
        ReleaseInFile();
        Release();
        return ret;
    }
    inFile_ = make_unique<ifstream>();
    prereadBuffer_ = std::make_unique<uint8_t []>(PREREAD_BUFFER_SIZE + START_CODE_SIZE);
    mpegUnit_ = std::make_unique<std::vector<uint8_t>>(MAX_WIDTH * MAX_HEIGHT << 1);
    if (inFile_ == nullptr) {
        isRunning_.store(false);
        (void)OH_VideoDecoder_Stop(vdec_);
        return AV_ERR_UNKNOWN;
    }
    inFile_->open(INP_DIR, ios::in | ios::binary);
    if (!inFile_->is_open()) {
        cout << "failed open file " << INP_DIR << endl;
        isRunning_.store(false);
        (void)OH_VideoDecoder_Stop(vdec_);
        inFile_->close();
        inFile_.reset();
        inFile_ = nullptr;
        return AV_ERR_UNKNOWN;
    }
    inputLoop_ = make_unique<thread>(&VDecAPI11Sample::InputFuncTest, this);
    if (inputLoop_ == nullptr) {
        cout << "Failed to create input loop" << endl;
        isRunning_.store(false);
        (void)OH_VideoDecoder_Stop(vdec_);
        ReleaseInFile();
        return AV_ERR_UNKNOWN;
    }
    outputLoop_ = make_unique<thread>(&VDecAPI11Sample::OutputFuncTest, this);
    if (outputLoop_ == nullptr) {
        cout << "Failed to create output loop" << endl;
        isRunning_.store(false);
        (void)OH_VideoDecoder_Stop(vdec_);
        ReleaseInFile();
        StopInloop();
        Release();
        return AV_ERR_UNKNOWN;
    }

    return AV_ERR_OK;
}

int32_t VDecAPI11Sample::StartSyncVideoDecoder()
{
    isRunning_.store(true);
    int ret = OH_VideoDecoder_Start(vdec_);
    if (ret != AV_ERR_OK) {
        cout << "Failed to start codec" << endl;
        isRunning_.store(false);
        ReleaseInFile();
        Release();
        return ret;
    }
    inFile_ = make_unique<ifstream>();
    prereadBuffer_ = std::make_unique<uint8_t []>(PREREAD_BUFFER_SIZE + START_CODE_SIZE);
    mpegUnit_ = std::make_unique<std::vector<uint8_t>>(MAX_WIDTH * MAX_HEIGHT << 1);
    if (inFile_ == nullptr) {
        isRunning_.store(false);
        (void)OH_VideoDecoder_Stop(vdec_);
        return AV_ERR_UNKNOWN;
    }
    inFile_->open(INP_DIR, ios::in | ios::binary);
    if (!inFile_->is_open()) {
        cout << "failed open file " << INP_DIR << endl;
        isRunning_.store(false);
        (void)OH_VideoDecoder_Stop(vdec_);
        inFile_->close();
        inFile_.reset();
        inFile_ = nullptr;
        return AV_ERR_UNKNOWN;
    }
    signal_ = new VDecAPI11Signal();
    inputLoop_ = make_unique<thread>(&VDecAPI11Sample::SyncInputFunc, this);
    if (inputLoop_ == nullptr) {
        cout << "Failed to create input loop" << endl;
        isRunning_.store(false);
        (void)OH_VideoDecoder_Stop(vdec_);
        ReleaseInFile();
        return AV_ERR_UNKNOWN;
    }
    outputLoop_ = make_unique<thread>(&VDecAPI11Sample::SyncOutputFunc, this);
    if (outputLoop_ == nullptr) {
        cout << "Failed to create output loop" << endl;
        isRunning_.store(false);
        (void)OH_VideoDecoder_Stop(vdec_);
        ReleaseInFile();
        StopInloop();
        Release();
        return AV_ERR_UNKNOWN;
    }

    return AV_ERR_OK;
}

void VDecAPI11Sample::testAPI()
{
    cs[0] = Surface::CreateSurfaceAsConsumer();
    sptr<IBufferConsumerListener> listener = new ConsumerListenerBuffer(cs[0], OUT_DIR);
    cs[0]->RegisterConsumerListener(listener);
    auto p = cs[0]->GetProducer();
    ps[0] = Surface::CreateSurfaceAsProducer(p);
    nativeWindow[0] = CreateNativeWindowFromSurface(&ps[0]);
    OH_VideoDecoder_SetSurface(vdec_, nativeWindow[0]);
    OH_VideoDecoder_Prepare(vdec_);
    OH_VideoDecoder_Start(vdec_);
    OH_AVFormat *format = OH_AVFormat_Create();
    (void)OH_AVFormat_SetIntValue(format, OH_MD_KEY_WIDTH, DEFAULT_WIDTH);
    (void)OH_AVFormat_SetIntValue(format, OH_MD_KEY_HEIGHT, DEFAULT_HEIGHT);
    (void)OH_AVFormat_SetIntValue(format, OH_MD_KEY_PIXEL_FORMAT, AV_PIXEL_FORMAT_NV12);
    (void)OH_AVFormat_SetDoubleValue(format, OH_MD_KEY_FRAME_RATE, DEFAULT_FRAME_RATE);
    OH_VideoDecoder_SetParameter(vdec_, format);
    OH_AVFormat_Destroy(format);
    OH_VideoDecoder_GetOutputDescription(vdec_);
    OH_VideoDecoder_Flush(vdec_);
    OH_VideoDecoder_Stop(vdec_);
    OH_VideoDecoder_Reset(vdec_);
    bool isvalid = false;
    OH_VideoDecoder_IsValid(vdec_, &isvalid);
}

void VDecAPI11Sample::WaitForEOS()
{
    if (!AFTER_EOS_DESTORY_CODEC && inputLoop_ && inputLoop_->joinable()) {
        inputLoop_->join();
    }

    if (outputLoop_ && outputLoop_->joinable()) {
        outputLoop_->join();
    }
}

void VDecAPI11Sample::InputFuncTest()
{
    bool flag = true;
    while (flag) {
        if (!isRunning_.load()) {
            flag = false;
            break;
        }
        if (REPEAT_START_FLUSH_BEFORE_EOS > 0) {
            REPEAT_START_FLUSH_BEFORE_EOS--;
            OH_VideoDecoder_Flush(vdec_);
            Flush_buffer();
            OH_VideoDecoder_Start(vdec_);
        }
        if (REPEAT_START_STOP_BEFORE_EOS > 0) {
            REPEAT_START_STOP_BEFORE_EOS--;
            OH_VideoDecoder_Stop(vdec_);
            Flush_buffer();
            OH_VideoDecoder_Start(vdec_);
        }
        uint32_t index;
        unique_lock<mutex> lock(signal_->inMutex_);
        signal_->inCond_.wait(lock, [this]() {
            if (!isRunning_.load()) {
                return true;
            }
            return signal_->inIdxQueue_.size() > 0;
        });
        if (!isRunning_.load()) {
            flag = false;
            break;
        }
        index = signal_->inIdxQueue_.front();
        auto buffer = signal_->inBufferQueue_.front();

        signal_->inIdxQueue_.pop();
        signal_->inBufferQueue_.pop();
        lock.unlock();
        int ret = PushData(index, buffer);
        if (ret == 1) {
            flag = false;
            break;
        }
        if (sleepOnFPS) {
            usleep(MICRO_IN_SECOND / (int32_t)DEFAULT_FRAME_RATE);
        }
    }
}

void VDecAPI11Sample::SyncInputFunc()
{
    bool flag = true;
    while (flag) {
        if (!isRunning_.load()) {
            flag = false;
            break;
        }
        uint32_t index;
        if (OH_VideoDecoder_QueryInputBuffer(vdec_, &index, syncInputWaitTime) != AV_ERR_OK) {
            cout << "OH_VideoDecoder_QueryInputBuffer fail" << endl;
            continue;
        }
        OH_AVBuffer *buffer = OH_VideoDecoder_GetInputBuffer(vdec_, index);
        if (buffer == nullptr) {
            cout << "OH_VideoDecoder_GetInputBuffer fail" << endl;
            errCount = errCount + 1;
            continue;
        }
        int ret = PushData(index, buffer);
        if (ret == 1) {
            flag = false;
            break;
        }
        if (sleepOnFPS) {
            usleep(MICRO_IN_SECOND / (int32_t)DEFAULT_FRAME_RATE);
        }
    }
}

void VDecAPI11Sample::PtrStep(uint32_t &bufferSize, unsigned char **pBuffer, uint32_t size)
{
    pPrereadBuffer_ += size;
    bufferSize += size;
    *pBuffer += size;
}

void VDecAPI11Sample::PtrStepExtraRead(uint32_t &bufferSize, unsigned char **pBuffer)
{
    bufferSize -= START_CODE_SIZE;
    *pBuffer -= START_CODE_SIZE;
    pPrereadBuffer_ = 0;
}

void VDecAPI11Sample::GetBufferSize()
{
    auto pBuffer = mpegUnit_->data();
    uint32_t bufferSize = 0;
    mpegUnit_->resize(MAX_NALU_SIZE);
    do {
        auto pos1 = std::search(prereadBuffer_.get() + pPrereadBuffer_ + START_CODE_SIZE,
            prereadBuffer_.get() + prereadBufferSize_, std::begin(MPEG4_FRAME_HEAD), std::end(MPEG4_FRAME_HEAD));
        uint32_t size1 = std::distance(prereadBuffer_.get() + pPrereadBuffer_, pos1);
        auto pos2 = std::search(prereadBuffer_.get() + pPrereadBuffer_, prereadBuffer_.get() +
            pPrereadBuffer_ + size1, std::begin(MPEG4_SEQUENCE_HEAD), std::end(MPEG4_SEQUENCE_HEAD));
        uint32_t size = std::distance(prereadBuffer_.get() + pPrereadBuffer_, pos2);
        if (size == 0) {
            auto pos3 = std::search(prereadBuffer_.get() + pPrereadBuffer_ + size1 + START_CODE_SIZE,
            prereadBuffer_.get() + prereadBufferSize_, std::begin(MPEG4_FRAME_HEAD), std::end(MPEG4_FRAME_HEAD));
            uint32_t size2 = std::distance(prereadBuffer_.get() + pPrereadBuffer_, pos3);
            if (memcpy_s(pBuffer, size2, prereadBuffer_.get() + pPrereadBuffer_, size2) != EOK) {
                return;
            }
            PtrStep(bufferSize, &pBuffer, size2);
            if (!((pPrereadBuffer_ == prereadBufferSize_) && !inFile_->eof())) {
                break;
            }
        } else if (size1 > size) {
            if (memcpy_s(pBuffer, size, prereadBuffer_.get() + pPrereadBuffer_, size) != EOK) {
                return;
            }
            PtrStep(bufferSize, &pBuffer, size);
            if (!((pPrereadBuffer_ == prereadBufferSize_) && !inFile_->eof())) {
                break;
            }
        } else {
            if (memcpy_s(pBuffer, size1, prereadBuffer_.get() + pPrereadBuffer_, size1) != EOK) {
                return;
            }
            PtrStep(bufferSize, &pBuffer, size1);
            if (!((pPrereadBuffer_ == prereadBufferSize_) && !inFile_->eof())) {
                break;
            }
        }
        inFile_->read(reinterpret_cast<char *>(prereadBuffer_.get() + START_CODE_SIZE), PREREAD_BUFFER_SIZE);
        prereadBufferSize_ = inFile_->gcount() + START_CODE_SIZE;
        pPrereadBuffer_ = START_CODE_SIZE;
        if (memcpy_s(prereadBuffer_.get(), START_CODE_SIZE, pBuffer - START_CODE_SIZE, START_CODE_SIZE) != EOK) {
            return;
        }
        PtrStepExtraRead(bufferSize, &pBuffer);
    } while (pPrereadBuffer_ != prereadBufferSize_);
    mpegUnit_->resize(bufferSize);
}

int32_t VDecAPI11Sample::PushData(uint32_t index, OH_AVBuffer *buffer)
{
    uint32_t bufferSize = 0;
    OH_AVCodecBufferAttr attr;
    if (BEFORE_EOS_INPUT && frameCount_ > TEN) {
        SetEOS(index, buffer);
        return 1;
    }
    if (BEFORE_EOS_INPUT_INPUT && frameCount_ > TEN) {
        memset_s(&attr, sizeof(OH_AVCodecBufferAttr), 0, sizeof(OH_AVCodecBufferAttr));
        attr.flags = AVCODEC_BUFFER_FLAGS_EOS;
        BEFORE_EOS_INPUT_INPUT = false;
    }
    if (inFile_->tellg() == 0) {
        inFile_->read(reinterpret_cast<char *>(prereadBuffer_.get() + START_CODE_SIZE), PREREAD_BUFFER_SIZE);
        prereadBufferSize_ = inFile_->gcount() + START_CODE_SIZE;
        pPrereadBuffer_ = START_CODE_SIZE;
    }
    if (inFile_->eof() && finishLastPush) {
        SetEOS(index, buffer);
        mpegUnit_->resize(0);
        return 1;
    }
    GetBufferSize();
    bufferSize = mpegUnit_->size();
    if (bufferSize >= DEFAULT_WIDTH * DEFAULT_HEIGHT * THREE >> 1) {
        cout << "read bufferSize abnormal. buffersize = " << bufferSize << endl;
        return 1;
    }
    return SendData(bufferSize, index, buffer);
}

int32_t VDecAPI11Sample::CheckAndReturnBufferSize(OH_AVBuffer *buffer)
{
    int32_t size = OH_AVBuffer_GetCapacity(buffer);
    if (maxInputSize > 0 && (size > maxInputSize)) {
        errCount++;
    }
    return size;
}

void VDecAPI11Sample::SetAttr(OH_AVCodecBufferAttr &attr, int64_t startPts, uint32_t bufferSize)
{
    attr.pts = startPts;
    attr.size = bufferSize;
    attr.offset = 0;
}

void VDecAPI11Sample::SetRepeat()
{
    inFile_->clear();
    inFile_->seekg(0, ios::beg);
    finishLastPush = false;
    cout << "repeat" << endl;
}

uint32_t VDecAPI11Sample::SendData(uint32_t bufferSize, uint32_t index, OH_AVBuffer *buffer)
{
    OH_AVCodecBufferAttr attr;
    uint8_t *fileBuffer = nullptr;
    if (bufferSize > 0) {
        fileBuffer = new uint8_t[bufferSize];
    } else {
        delete[] fileBuffer;
        return 0;
    }
    if (pPrereadBuffer_ == prereadBufferSize_ && inFile_->eof()) {
        finishLastPush = true;
    }
    if (memcpy_s(fileBuffer, bufferSize, mpegUnit_->data(), bufferSize) != EOK) {
        cout << "Fatal: memory copy failed" << endl;
    }
    int32_t size = CheckAndReturnBufferSize(buffer);
    if (size < bufferSize) {
        delete[] fileBuffer;
        return 0;
    }
    uint8_t *avBuffer = OH_AVBuffer_GetAddr(buffer);
    if (avBuffer == nullptr) {
        inFile_->clear();
        inFile_->seekg(0, ios::beg);
        delete[] fileBuffer;
        return 0;
    }
    if (memcpy_s(avBuffer, size, fileBuffer, bufferSize) != EOK) {
        delete[] fileBuffer;
        return 0;
    }
    int64_t startPts = GetSystemTimeUs();
    SetAttr(attr, startPts, bufferSize);
    if (isRunning_.load()) {
        OH_AVBuffer_SetBufferAttr(buffer, &attr);
        OH_VideoDecoder_PushInputBuffer(vdec_, index) == AV_ERR_OK ? (0) : (errCount++);
        frameCount_ = frameCount_ + 1;
        outCount = outCount + 1;
        if (autoSwitchSurface && (frameCount_ % (int32_t)DEFAULT_FRAME_RATE == 0)) {
            switchSurfaceFlag = (switchSurfaceFlag == 1) ? 0 : 1;
            OH_VideoDecoder_SetSurface(vdec_, nativeWindow[switchSurfaceFlag]) == AV_ERR_OK ? (0) : (errCount++);
        }
    }
    delete[] fileBuffer;
    if (inFile_->eof() && finishLastPush && repeatRun) {
        SetRepeat();
    }
    return 0;
}

void VDecAPI11Sample::CheckOutputDescription()
{
    OH_AVFormat *newFormat = OH_VideoDecoder_GetOutputDescription(vdec_);
    if (newFormat != nullptr) {
        int32_t cropTop = 0;
        int32_t cropBottom = 0;
        int32_t cropLeft = 0;
        int32_t cropRight = 0;
        int32_t stride = 0;
        int32_t sliceHeight = 0;
        int32_t picWidth = 0;
        int32_t picHeight = 0;
        OH_AVFormat_GetIntValue(newFormat, OH_MD_KEY_VIDEO_CROP_TOP, &cropTop);
        OH_AVFormat_GetIntValue(newFormat, OH_MD_KEY_VIDEO_CROP_BOTTOM, &cropBottom);
        OH_AVFormat_GetIntValue(newFormat, OH_MD_KEY_VIDEO_CROP_LEFT, &cropLeft);
        OH_AVFormat_GetIntValue(newFormat, OH_MD_KEY_VIDEO_CROP_RIGHT, &cropRight);
        OH_AVFormat_GetIntValue(newFormat, OH_MD_KEY_VIDEO_STRIDE, &stride);
        OH_AVFormat_GetIntValue(newFormat, OH_MD_KEY_VIDEO_SLICE_HEIGHT, &sliceHeight);
        OH_AVFormat_GetIntValue(newFormat, OH_MD_KEY_VIDEO_PIC_WIDTH, &picWidth);
        OH_AVFormat_GetIntValue(newFormat, OH_MD_KEY_VIDEO_PIC_HEIGHT, &picHeight);
        if (cropTop != expectCropTop || cropBottom != expectCropBottom || cropLeft != expectCropLeft) {
            std::cout << "cropTop:" << cropTop << " cropBottom:" << cropBottom << " cropLeft:" << cropLeft <<std::endl;
            errCount++;
        }
        if (cropRight != expectCropRight || stride <= 0 || sliceHeight <= 0) {
            std::cout << "cropRight:" << cropRight << std::endl;
            std::cout << "stride:" << stride << " sliceHeight:" << sliceHeight << std::endl;
            errCount++;
        }
        if (picWidth != originalWidth || picHeight != originalHeight) {
            std::cout << "picWidth:" << picWidth << " picHeight:" << picHeight << std::endl;
            errCount++;
        }
    } else {
        errCount++;
    }
    OH_AVFormat_Destroy(newFormat);
}

void VDecAPI11Sample::AutoSwitchSurface()
{
    if (autoSwitchSurface) {
        switchSurfaceFlag = (switchSurfaceFlag == 1) ? 0 : 1;
        if (OH_VideoDecoder_SetSurface(vdec_, nativeWindow[switchSurfaceFlag]) != AV_ERR_OK) {
            errCount++;
        }
        OH_AVFormat *format = OH_AVFormat_Create();
        int32_t angle = DEFAULT_ANGLE * reinterpret_cast<int32_t>(switchSurfaceFlag);
        (void)OH_AVFormat_SetIntValue(format, OH_MD_KEY_ROTATION, angle);
        OH_VideoDecoder_SetParameter(vdec_, format);
        OH_AVFormat_Destroy(format);
    }
}
int32_t VDecAPI11Sample::CheckAttrFlag(OH_AVCodecBufferAttr attr)
{
    if (needCheckOutputDesc) {
        CheckOutputDescription();
        needCheckOutputDesc = false;
    }
    if (attr.flags & AVCODEC_BUFFER_FLAGS_EOS) {
        cout << "AVCODEC_BUFFER_FLAGS_EOS" << endl;
        AutoSwitchSurface();
        SHA512_Final(g_md, &g_c);
        OPENSSL_cleanse(&g_c, sizeof(g_c));
        MdCompare(g_md, SHA512_DIGEST_LENGTH, fileSourcesha256);
        return -1;
    }
    if (attr.flags == AVCODEC_BUFFER_FLAGS_CODEC_DATA) {
        cout << "enc AVCODEC_BUFFER_FLAGS_CODEC_DATA" << attr.pts << endl;
        return 0;
    }
    outFrameCount = outFrameCount + 1;
    return 0;
}

void VDecAPI11Sample::OutputFuncTest()
{
    FILE *outFile = nullptr;
    if (outputYuvFlag) {
        outFile = fopen(OUT_DIR, "wb");
    }
    SHA512_Init(&g_c);
    bool flag = true;
    while (flag) {
        if (!isRunning_.load()) {
            flag = false;
            break;
        }
        OH_AVCodecBufferAttr attr;
        unique_lock<mutex> lock(signal_->outMutex_);
        signal_->outCond_.wait(lock, [this]() {
            if (!isRunning_.load()) {
                return true;
            }
            return signal_->outIdxQueue_.size() > 0;
        });
        if (!isRunning_.load()) {
            flag = false;
            break;
        }
        uint32_t index = signal_->outIdxQueue_.front();
        OH_AVBuffer *buffer = signal_->outBufferQueue_.front();
        signal_->outBufferQueue_.pop();
        signal_->outIdxQueue_.pop();
        if (OH_AVBuffer_GetBufferAttr(buffer, &attr) != AV_ERR_OK) {
            errCount = errCount + 1;
        }
        lock.unlock();
        if (CheckAttrFlag(attr) == -1) {
            flag = false;
            break;
        }
        ProcessOutputData(buffer, index, attr.size);
        if (outFile != nullptr) {
            fwrite(OH_AVBuffer_GetAddr(buffer), 1, attr.size, outFile);
        }
        if (errCount > 0) {
            flag = false;
            break;
        }
    }
    if (outFile) {
        (void)fclose(outFile);
    }
}

void VDecAPI11Sample::SyncOutputFunc()
{
    FILE *outFile = nullptr;
    if (outputYuvFlag) {
        outFile = fopen(OUT_DIR, "wb");
    }
    SHA512_Init(&g_c);
    bool flag = true;
    while (flag) {
        if (!isRunning_.load()) {
            flag = false;
            break;
        }
        OH_AVCodecBufferAttr attr;
        uint32_t index = 0;
        if (OH_VideoDecoder_QueryOutputBuffer(vdec_, &index, syncOutputWaitTime) != AV_ERR_OK) {
            cout << "OH_VideoDecoder_QueryOutputBuffer fail" << endl;
            continue;
        }
        OH_AVBuffer *buffer = OH_VideoDecoder_GetOutputBuffer(vdec_, index);
        if (buffer == nullptr) {
            cout << "OH_VideoDecoder_GetOutputBuffer fail" << endl;
            errCount = errCount + 1;
            continue;
        }
        if (OH_AVBuffer_GetBufferAttr(buffer, &attr) != AV_ERR_OK) {
            errCount = errCount + 1;
        }
        if (SyncOutputFuncEos(attr, index) != AV_ERR_OK) {
            flag = false;
            break;
        }
        ProcessOutputData(buffer, index, attr.size);
        if (outFile != nullptr) {
            fwrite(OH_AVBuffer_GetAddr(buffer), 1, attr.size, outFile);
        }
        if (errCount > 0) {
            flag = false;
            break;
        }
    }
    if (outFile) {
        (void)fclose(outFile);
    }
}

int32_t VDecAPI11Sample::SyncOutputFuncEos(OH_AVCodecBufferAttr attr, uint32_t index)
{
    if (CheckAttrFlag(attr) == -1) {
        if (queryInputBufferEOS) {
            OH_VideoDecoder_QueryInputBuffer(vdec_, &index, 0);
            OH_VideoDecoder_QueryInputBuffer(vdec_, &index, MILLION);
            OH_VideoDecoder_QueryInputBuffer(vdec_, &index, -1);
        }
        if (queryOutputBufferEOS) {
            OH_VideoDecoder_QueryOutputBuffer(vdec_, &index, 0);
            OH_VideoDecoder_QueryOutputBuffer(vdec_, &index, MILLION);
            OH_VideoDecoder_QueryOutputBuffer(vdec_, &index, -1);
        }
        return AV_ERR_UNKNOWN;
    }
    return AV_ERR_OK;
}

void VDecAPI11Sample::ProcessOutputData(OH_AVBuffer *buffer, uint32_t index, int32_t size)
{
    if (!SF_OUTPUT) {
        if (size >= DEFAULT_WIDTH * DEFAULT_HEIGHT * THREE >> 1) {
            uint8_t *cropBuffer = new uint8_t[size];
            if (memcpy_s(cropBuffer, size, OH_AVBuffer_GetAddr(buffer),
                         DEFAULT_WIDTH * DEFAULT_HEIGHT) != EOK) {
                cout << "Fatal: memory copy failed Y" << endl;
            }
            // copy UV
            uint32_t uvSize = size - DEFAULT_WIDTH * DEFAULT_HEIGHT;
            if (memcpy_s(cropBuffer + DEFAULT_WIDTH * DEFAULT_HEIGHT, uvSize,
                         OH_AVBuffer_GetAddr(buffer) + DEFAULT_WIDTH * DEFAULT_HEIGHT, uvSize) != EOK) {
                cout << "Fatal: memory copy failed UV" << endl;
            }
            SHA512_Update(&g_c, cropBuffer, size);
            delete[] cropBuffer;
        }
        if (OH_VideoDecoder_FreeOutputBuffer(vdec_, index) != AV_ERR_OK) {
            cout << "Fatal: ReleaseOutputBuffer fail" << endl;
            errCount = errCount + 1;
        }
    } else {
        if (rsAtTime) {
            int32_t usTimeNum = 1000;
            int32_t msTimeNum = 1000000;
            if (renderTimestampNs == 0) {
                renderTimestampNs = GetSystemTimeUs() * usTimeNum;
            }
            renderTimestampNs = renderTimestampNs + (usTimeNum / DEFAULT_FRAME_RATE * msTimeNum);
            if (OH_VideoDecoder_RenderOutputBufferAtTime(vdec_, index, renderTimestampNs) != AV_ERR_OK) {
                cout << "Fatal: RenderOutputBufferAtTime fail" << endl;
                errCount = errCount + 1;
            }
        } else {
            if (OH_VideoDecoder_RenderOutputBuffer(vdec_, index) != AV_ERR_OK) {
                cout << "Fatal: RenderOutputBuffer fail" << endl;
                errCount = errCount + 1;
            }
        }
    }
}

int32_t VDecAPI11Sample::state_EOS()
{
    uint32_t index;
    unique_lock<mutex> lock(signal_->inMutex_);
    signal_->inCond_.wait(lock, [this]() { return signal_->inIdxQueue_.size() > 0; });
    index = signal_->inIdxQueue_.front();
    signal_->inIdxQueue_.pop();
    signal_->inBufferQueue_.pop();
    lock.unlock();
    return OH_VideoDecoder_PushInputBuffer(vdec_, index);
}

void VDecAPI11Sample::SetEOS(uint32_t index, OH_AVBuffer *buffer)
{
    OH_AVCodecBufferAttr attr;
    attr.pts = 0;
    attr.size = 0;
    attr.offset = 0;
    attr.flags = AVCODEC_BUFFER_FLAGS_EOS;
    OH_AVBuffer_SetBufferAttr(buffer, &attr);
    int32_t res = OH_VideoDecoder_PushInputBuffer(vdec_, index);
    cout << "OH_VideoDecoder_PushInputBuffer    EOS   res: " << res << endl;
}

int32_t VDecAPI11Sample::Flush()
{
    unique_lock<mutex> inLock(signal_->inMutex_);
    clearIntqueue(signal_->inIdxQueue_);
    signal_->inCond_.notify_all();
    inLock.unlock();
    unique_lock<mutex> outLock(signal_->outMutex_);
    clearIntqueue(signal_->outIdxQueue_);
    clearBufferqueue(signal_->attrQueue_);
    signal_->outCond_.notify_all();
    outLock.unlock();
    isRunning_.store(false);
    return OH_VideoDecoder_Flush(vdec_);
}

int32_t VDecAPI11Sample::Reset()
{
    isRunning_.store(false);
    StopInloop();
    StopOutloop();
    ReleaseInFile();
    return OH_VideoDecoder_Reset(vdec_);
}

int32_t VDecAPI11Sample::Release()
{
    int ret = 0;
    if (vdec_ != nullptr) {
        ret = OH_VideoDecoder_Destroy(vdec_);
        vdec_ = nullptr;
    }

    if (signal_ != nullptr) {
        delete signal_;
        signal_ = nullptr;
    }
    return ret;
}

int32_t VDecAPI11Sample::Stop()
{
    StopInloop();
    StopOutloop();
    ReleaseInFile();
    return OH_VideoDecoder_Stop(vdec_);
}

int32_t VDecAPI11Sample::Start()
{
    isRunning_.store(true);
    return OH_VideoDecoder_Start(vdec_);
}

void VDecAPI11Sample::StopOutloop()
{
    if (outputLoop_ != nullptr && outputLoop_->joinable()) {
        unique_lock<mutex> lock(signal_->outMutex_);
        clearIntqueue(signal_->outIdxQueue_);
        clearBufferqueue(signal_->attrQueue_);
        isRunning_.store(false);
        signal_->outCond_.notify_all();
        lock.unlock();
        outputLoop_->join();
        outputLoop_.reset();
    }
}

int32_t VDecAPI11Sample::SetParameter(OH_AVFormat *format)
{
    return OH_VideoDecoder_SetParameter(vdec_, format);
}

int32_t VDecAPI11Sample::SwitchSurface()
{
    int32_t ret = OH_VideoDecoder_SetSurface(vdec_, nativeWindow[switchSurfaceFlag]);
    switchSurfaceFlag = (switchSurfaceFlag == 1) ? 0 : 1;
    cout << "manual switch surf "<< switchSurfaceFlag << endl;
    return ret;
}

int32_t VDecAPI11Sample::RepeatCallSetSurface()
{
    for (int i = 0; i < REPEAT_CALL_TIME; i++) {
        switchSurfaceFlag = (switchSurfaceFlag == 1) ? 0 : 1;
        int32_t ret = OH_VideoDecoder_SetSurface(vdec_, nativeWindow[switchSurfaceFlag]);
        if (ret != AV_ERR_OK && ret != AV_ERR_OPERATE_NOT_PERMIT && ret != AV_ERR_INVALID_STATE) {
            return AV_ERR_OPERATE_NOT_PERMIT;
        }
    }
    return AV_ERR_OK;
}

int32_t VDecAPI11Sample::DecodeSetSurface()
{
    CreateSurface();
    return OH_VideoDecoder_SetSurface(vdec_, nativeWindow[0]);
}