// return the number of channels for camera
int CvCaptureCAM_CMU::getNChannels()
{
C1394Camera* cmucam = camera();
int format = cmucam->GetVideoFormat();
int mode = cmucam->GetVideoMode();
if( format==7 ){
assert(0);
return 1;
}
// irrelvant to nchannels
if( format > 1 )
format = 1;
switch(CV_CAP_IEEE1394_COLOR[format][mode]){
case CV_CAP_IEEE1394_COLOR_RGB:
return 3;
case CV_CAP_IEEE1394_COLOR_MONO:
case CV_CAP_IEEE1394_COLOR_MONO16:
return 1;
case CV_CAP_IEEE1394_COLOR_YUV422:
case CV_CAP_IEEE1394_COLOR_YUV444:
case CV_CAP_IEEE1394_COLOR_YUV411:
return 3;
default:
;
}
return -1;
}
bool CvCaptureCAM_CMU::setMode(int mode)
{
int format;
C1394Camera* cmucam = camera();
if( !cmucam )
return false;
format = cmucam->GetVideoFormat();
if( mode < 0 || mode > 7 || !cmucam->HasVideoMode(format, mode))
return false;
cmucam->StopImageAcquisition();
cmucam->SetVideoMode(mode);
cmucam->StartImageAcquisition();
return true;
}
bool CvCaptureCAM_CMU::setFrameRate(int rate)
{
int format, mode;
C1394Camera* cmucam = camera();
if( !cmucam )
return false;
mode = cmucam->GetVideoMode();
format = cmucam->GetVideoFormat();
if( rate < 0 || rate > 5 || !cmucam->HasVideoFrameRate(format, mode, rate) )
return false;
cmucam->StopImageAcquisition();
cmucam->SetVideoFrameRate(rate);
cmucam->StartImageAcquisition();
return true;
}
double CvCaptureCAM_CMU::getProperty( int property_id )
{
C1394Camera* cmucam = camera();
if( !cmucam )
return 0;
switch( property_id )
{
case CV_CAP_PROP_FRAME_WIDTH:
return image->width;
case CV_CAP_PROP_FRAME_HEIGHT:
return image->height;
case CV_CAP_PROP_FPS:
return cmucam->GetVideoFrameRate();
case CV_CAP_PROP_MODE:
return cmucam->GetVideoMode();
case CV_CAP_PROP_FORMAT:
return cmucam->GetVideoFormat();
}
return 0;
}
// return the opencv depth flag corresponding to the camera format
int CvCaptureCAM_CMU::getDepth()
{
C1394Camera* cmucam = camera();
int format = cmucam->GetVideoFormat();
int mode = cmucam->GetVideoMode();
// TODO
if( format==7 ) {
assert(0);
return 1;
}
// irrelvant to depth
if( format > 1 )
format = 1;
if( CV_CAP_IEEE1394_COLOR[format][mode]==CV_CAP_IEEE1394_COLOR_MONO16 )
return IPL_DEPTH_16S;
return IPL_DEPTH_8U;
}
