C++ (Cpp) cuvidCreateVideoSource Examples

Example #1

File: VideoSource.cpp Project: huoyao/cudasdk

VideoSource::VideoSource(const std::string sFileName, FrameQueue *pFrameQueue): hVideoSource_(0)
{
    // fill in SourceData struct as much as we can
    // right now. Client must specify parser at a later point
    // to avoid crashes (see setParser() method).
    assert(0 != pFrameQueue);
    oSourceData_.hVideoParser = 0;
    oSourceData_.pFrameQueue = pFrameQueue;

    CUVIDSOURCEPARAMS oVideoSourceParameters;
    // Fill parameter struct
    memset(&oVideoSourceParameters, 0, sizeof(CUVIDSOURCEPARAMS));
    oVideoSourceParameters.pUserData = &oSourceData_;               // will be passed to data handlers
    oVideoSourceParameters.pfnVideoDataHandler = HandleVideoData;   // our local video-handler callback
    oVideoSourceParameters.pfnAudioDataHandler = 0;
    // now create the actual source
    CUresult oResult = cuvidCreateVideoSource(&hVideoSource_, sFileName.c_str(), &oVideoSourceParameters);
    assert(CUDA_SUCCESS == oResult);
}

Example #2

File: VideoSource.cpp Project: huoyao/cudasdk

void
VideoSource::ReloadVideo(const std::string sFileName, FrameQueue *pFrameQueue, VideoParser *pVideoParser)
{
    // fill in SourceData struct as much as we can right now. Client must specify parser at a later point
    assert(0 != pFrameQueue);
    oSourceData_.hVideoParser = pVideoParser->hParser_;
    oSourceData_.pFrameQueue  = pFrameQueue;

    cuvidDestroyVideoSource(hVideoSource_);

    CUVIDSOURCEPARAMS oVideoSourceParameters;
    // Fill parameter struct
    memset(&oVideoSourceParameters, 0, sizeof(CUVIDSOURCEPARAMS));
    oVideoSourceParameters.pUserData = &oSourceData_;               // will be passed to data handlers
    oVideoSourceParameters.pfnVideoDataHandler = HandleVideoData;   // our local video-handler callback
    oVideoSourceParameters.pfnAudioDataHandler = 0;
    // now create the actual source
    CUresult oResult = cuvidCreateVideoSource(&hVideoSource_, sFileName.c_str(), &oVideoSourceParameters);
    assert(CUDA_SUCCESS == oResult);
}

Example #3

File: cuvid_video_source.cpp Project: 4auka/opencv

cv::gpu::detail::CuvidVideoSource::CuvidVideoSource(const std::string& fname)
{
    CUVIDSOURCEPARAMS params;
    std::memset(&params, 0, sizeof(CUVIDSOURCEPARAMS));

    // Fill parameter struct
    params.pUserData = this;                        // will be passed to data handlers
    params.pfnVideoDataHandler = HandleVideoData;   // our local video-handler callback
    params.pfnAudioDataHandler = 0;

    // now create the actual source
    CUresult res = cuvidCreateVideoSource(&videoSource_, fname.c_str(), &params);
    if (res == CUDA_ERROR_INVALID_SOURCE)
        throw std::runtime_error("Unsupported video source");
    cuSafeCall( res );

    CUVIDEOFORMAT vidfmt;
    cuSafeCall( cuvidGetSourceVideoFormat(videoSource_, &vidfmt, 0) );

    format_.codec = static_cast<VideoReader_GPU::Codec>(vidfmt.codec);
    format_.chromaFormat = static_cast<VideoReader_GPU::ChromaFormat>(vidfmt.chroma_format);
    format_.width = vidfmt.coded_width;
    format_.height = vidfmt.coded_height;
}