【音视频开发（二）】---MediaCodec NDK编码

初始化编码器：

void VideoEncoder::Init(int width, int height, int buffNumber)
{
    DM_NATIVE_PRINT("VideoEncoder::Init Start... %dx%d", width, height);
    imageW = width;
    imageH = height;
    mMaxBufferNumber = buffNumber;

    mInputDataList = new DmSyncQueue<InputData_t>(buffNumber);
    mOutputDataList = new DmSyncQueue<InputData_t>(buffNumber);

    const char* mine = "video/avc";
    mMediaCodec =  AMediaCodec_createEncoderByType(mine);

    AMediaFormat* videoFormat = AMediaFormat_new();
    AMediaFormat_setString(videoFormat, "mime", mine);
    AMediaFormat_setInt32(videoFormat, AMEDIAFORMAT_KEY_WIDTH, width); // 视频宽度
    AMediaFormat_setInt32(videoFormat, AMEDIAFORMAT_KEY_HEIGHT, height); // 视频高度
   
    AMediaFormat_setInt32(videoFormat, AMEDIAFORMAT_KEY_COLOR_FORMAT, 2135033992);//COLOR_FormatYUV422Flexible
    AMediaFormat_setInt32(videoFormat, AMEDIAFORMAT_KEY_BIT_RATE, height*width*4);//帧传输速率
    AMediaFormat_setInt32(videoFormat, AMEDIAFORMAT_KEY_FRAME_RATE, 25);
    AMediaFormat_setInt32(videoFormat, AMEDIAFORMAT_KEY_I_FRAME_INTERVAL, 5);

    media_status_t status = AMediaCodec_configure(mMediaCodec, videoFormat, NULL, NULL, AMEDIACODEC_CONFIGURE_FLAG_ENCODE);
    if (status != AMEDIA_OK)
    {
        AMediaCodec_delete(mMediaCodec);
        mMediaCodec = NULL;
        opened = false;
    } else {
        status = AMediaCodec_start(mMediaCodec);
        if (status != AMEDIA_OK)
        {
            DM_NATIVE_ERR_PRINT("AMediaCodec_start: Could not start decoder.");
        }
        run = true;
        mLoopThread = new std::thread(&VideoEncoder::Loop, this);
        opened = true;
    }
    AMediaFormat_delete(videoFormat);
    DM_NATIVE_PRINT("VideoEncoder::Init Done");
}

编码器数据编码：

编码器线程：

void VideoEncoder::Loop()
{
    while(run) {
        Encode();
    }
}

void VideoEncoder::Encode()
{
#ifndef WIN32
    InputData_t input;
  
    if (mMediaCodec =&#