C++ (Cpp) createStreams Examples

Example #1

File: cap_vfw.cpp Project: 12rohanb/opencv

bool CvVideoWriter_VFW::writeFrame( const IplImage* image )
{
    bool result = false;
    CV_FUNCNAME( "CvVideoWriter_VFW::writeFrame" );

    __BEGIN__;

    if( !image )
        EXIT;

    if( !compressed && !createStreams( cvGetSize(image), image->nChannels > 1 ))
        EXIT;

    if( image->width != tempFrame->width || image->height != tempFrame->height )
        CV_ERROR( CV_StsUnmatchedSizes,
            "image size is different from the currently set frame size" );

    if( image->nChannels != tempFrame->nChannels ||
        image->depth != tempFrame->depth ||
        image->origin == 0 ||
        image->widthStep != cvAlign(image->width*image->nChannels*((image->depth & 255)/8), 4))
    {
        cvConvertImage( image, tempFrame, image->origin == 0 ? CV_CVTIMG_FLIP : 0 );
        image = (const IplImage*)tempFrame;
    }

    result = AVIStreamWrite( compressed, pos++, 1, image->imageData,
                             image->imageSize, AVIIF_KEYFRAME, 0, 0 ) == AVIERR_OK;

    __END__;

    return result;
}

Example #2

File: GraphSourceRandom.cpp Project: zhanjx1314/nwframework

//********************************************************************
//
//********************************************************************
//--------------------------------------------------------------------
//
//--------------------------------------------------------------------
bool GraphSourceRandom::init(const InitData& _data)
{
    bool bOK = true;

    if (!isOk())
    {
        bOK = Inherited::init();

        mStreamAudio = 0;
        mStreamVideo = 0;
        mTimeAudio = 0;
        mTimeVideo = 0;
        mData = _data;
        mMultiTask = 0;

        if ( bOK )
            bOK = createStreams();

        if ( bOK )
        {
            mMultiTask = NEW MultiTask();
            bOK = mMultiTask->init(2,this);
        }
    }
    return bOK;
}

Example #3

File: vel_bridge.cpp Project: RoboHow/pr2_sot_integration

VBridge::VBridge()
  : m_nh("")
{
  m_vel_sub = m_nh.subscribe<sensor_msgs::JointState>("sot_cmdvel", 1,
    boost::bind(&VBridge::setpointCB,this, _1) );
  
  loadConfig();
  createStreams();
}

Example #4

File: cap_vfw.cpp Project: MasaMune692/alcexamples

bool CvVideoWriter_VFW::open( const char* filename, int _fourcc, double _fps, CvSize frameSize, bool isColor )
{
    close();

    icvInitCapture_VFW();
    if( AVIFileOpen( &avifile, filename, OF_CREATE | OF_WRITE, 0 ) == AVIERR_OK )
    {
        fourcc = _fourcc;
        fps = _fps;
        if( frameSize.width > 0 && frameSize.height > 0 &&
            !createStreams( frameSize, isColor ) )
        {
            close();
            return false;
        }
    }
    return true;
}

Example #5

File: SocketStreamHandleCFNet.cpp Project: harlanlewis/webkit

SocketStreamHandle::SocketStreamHandle(const KURL& url, SocketStreamHandleClient* client)
    : SocketStreamHandleBase(url, client)
    , m_connectingSubstate(New)
    , m_connectionType(Unknown)
    , m_sentStoredCredentials(false)
{
    LOG(Network, "SocketStreamHandle %p new client %p", this, m_client);

    ASSERT(url.protocolIs("ws") || url.protocolIs("wss"));

    KURL httpsURL(KURL(), "https://" + m_url.host());
    m_httpsURL.adoptCF(httpsURL.createCFURL());

    createStreams();
    ASSERT(!m_readStream == !m_writeStream);
    if (!m_readStream) // Doing asynchronous PAC file processing, streams will be created later.
        return;

    scheduleStreams();
}