void MediaPlayerOCV::OCVCaptureThread::execute()
{
//m_ocvCamera.m_capture.open( m_ocvCamera.getDeviceId() );
if ( !m_player.m_capture.isOpened() )
{
LOG_ERROR( "[MediaPlayerOCV] Player not opened, capture thread will not load" );
return;
}
// Capture thread loop
while( !get_signaled() )
{
// New frame flag
bool newFrame = false;
// If false, opencv controls the playhead. If false, it is controlled by our timer
bool setPlayhead = false;
// Set the playhead
double currentActualFrame = 0.0f;
if ( setPlayhead )
{
unsigned long millisPlayback = m_timer.getMilliseconds();
double currentFrame = ((double)millisPlayback/1000.0) * m_fps;
currentActualFrame = m_player.m_capture.get(CV_CAP_PROP_POS_FRAMES);
// Have new frame?
if ( currentFrame > currentActualFrame )
{
m_player.m_capture.set(CV_CAP_PROP_POS_FRAMES, currentFrame);
currentActualFrame = currentFrame;
}
}
// And grab new frame (it will be updated in the next call to getImage()
{
cv::Mat m_cvCaptureImage;
newFrame = m_player.m_capture.read( m_cvCaptureImage );
// Convert from BGR to RGB
cv::cvtColor(m_cvCaptureImage, m_localMat, CV_BGR2RGB);
// Get the current frame position
if ( !setPlayhead )
currentActualFrame = m_player.m_capture.get(CV_CAP_PROP_POS_FRAMES);
// Set the new frame to the player
if ( newFrame )
{
m_player.setNewFrame( currentActualFrame, m_localMat );
// relax the thread
relax(20);
}
}
}
}
void PVCamera::PVCaptureThread::execute()
{
unsigned char *cameraBuffer = NULL;
unsigned char *cameraWriteBuffer = NULL;
// Execute until the thread gets signaled
while( !get_signaled() )
{
// Get new frame from the camera
cameraBuffer = m_PVCamera.m_pvCamera->getFrame();
if ( cameraBuffer )
{
// Get buffer to write the image
cameraWriteBuffer = m_PVCamera.m_ringBuffer->getNextBufferToWrite();
if ( cameraWriteBuffer )
{
// Copy the new frame in the buffer, and notify it
memcpy( cameraWriteBuffer, cameraBuffer, m_PVCamera.m_ringBuffer->size() );
m_PVCamera.m_ringBuffer->writeFinished();
}
}
}
}
