bool FirewireVideo::GrabNewest( unsigned char* image, bool wait )
{
dc1394video_frame_t *f;
err = dc1394_capture_dequeue(camera, DC1394_CAPTURE_POLICY_POLL, &f);
if( err != DC1394_SUCCESS)
throw VideoException("Could not capture frame", dc1394_error_get_string(err) );
if( f ) {
while( true )
{
dc1394video_frame_t *nf;
err = dc1394_capture_dequeue(camera, DC1394_CAPTURE_POLICY_POLL, &nf);
if( err != DC1394_SUCCESS)
throw VideoException("Could not capture frame", dc1394_error_get_string(err) );
if( nf )
{
err=dc1394_capture_enqueue(camera,f);
f = nf;
}else{
break;
}
}
memcpy(image,f->image,f->image_bytes);
err=dc1394_capture_enqueue(camera,f);
return true;
}else if(wait){
return GrabNext(image,true);
}
return false;
}
bool VideoInput::Grab( unsigned char* buffer, std::vector<Image<unsigned char> >& images, bool wait, bool newest)
{
if( !video_src ) throw VideoException("No video source open");
bool success;
if(newest) {
success = GrabNewest(buffer, wait);
}else{
success = GrabNext(buffer, wait);
}
if(success) {
images.clear();
for(size_t s=0; s < Streams().size(); ++s) {
images.push_back(Streams()[s].StreamImage(buffer));
}
}
return success;
}
bool SharedMemoryVideo::GrabNewest(unsigned char* image, bool wait)
{
return GrabNext(image,wait);
}
//! Implement VideoInput::GrabNewest()
bool DebayerVideo::GrabNewest( unsigned char* image, bool wait )
{
return GrabNext(image,wait);
}
bool OpenNi2Video::GrabNewest( unsigned char* image, bool wait )
{
return GrabNext(image,wait);
}
bool PangoVideo::GrabNewest( unsigned char* image, bool wait )
{
return GrabNext(image, wait);
}
bool VideoJoiner::GrabNewest( unsigned char* image, bool wait )
{
return GrabNext(image, wait);
}
