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added preview option to show decoded stream in Audio config

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This commit is contained in:
csoler 2015-08-09 18:09:17 -04:00
parent 2107a1c858
commit c0614e70ac
8 changed files with 195 additions and 63 deletions
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61
plugins/VOIP/gui/QVideoDevice.cpp
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@ -13,6 +13,9 @@ QVideoInputDevice::QVideoInputDevice(QWidget *parent)
_capture_device = NULL ;
_video_encoder = NULL ;
_echo_output_device = NULL ;
_estimated_bw = 0 ;
_total_encoded_size = 0 ;
_last_bw_estimate_TS = time(NULL) ;
}
void QVideoInputDevice::stop()
@ -54,36 +57,52 @@ void QVideoInputDevice::start()
void QVideoInputDevice::grabFrame()
{
IplImage *img=cvQueryFrame(_capture_device);
IplImage *img=cvQueryFrame(_capture_device);
if(img == NULL)
{
std::cerr << "(EE) Cannot capture image from camera. Something's wrong." << std::endl;
return ;
}
// get the image data
if(img == NULL)
{
std::cerr << "(EE) Cannot capture image from camera. Something's wrong." << std::endl;
return ;
}
// get the image data
if(img->nChannels != 3)
{
std::cerr << "(EE) expected 3 channels. Got " << img->nChannels << std::endl;
return ;
}
if(img->nChannels != 3)
{
std::cerr << "(EE) expected 3 channels. Got " << img->nChannels << std::endl;
return ;
}
// convert to RGB and copy to new buffer, because cvQueryFrame tells us to not modify the buffer
cv::Mat img_rgb;
cv::cvtColor(cv::Mat(img), img_rgb, CV_BGR2RGB);
static const int _encoded_width = 128 ;
static const int _encoded_height = 128 ;
QImage image = QImage(img_rgb.data,img_rgb.cols,img_rgb.rows,QImage::Format_RGB888);
QImage image = QImage(img_rgb.data,img_rgb.cols,img_rgb.rows,QImage::Format_RGB888).scaled(QSize(_encoded_width,_encoded_height),Qt::IgnoreAspectRatio,Qt::SmoothTransformation) ;
if(_video_encoder != NULL)
{
uint32_t encoded_size ;
if(_video_encoder != NULL)
{
_video_encoder->addImage(image) ;
emit networkPacketReady() ;
}
if(_echo_output_device != NULL) _echo_output_device->showFrame(image) ;
_video_encoder->addImage(image,0,encoded_size) ;
std::cerr << "Encoded size = " << encoded_size << std::endl;
_total_encoded_size += encoded_size ;
time_t now = time(NULL) ;
if(now > _last_bw_estimate_TS)
{
_estimated_bw = uint32_t(0.75*_estimated_bw + 0.25 * (_total_encoded_size / (float)(now - _last_bw_estimate_TS))) ;
_total_encoded_size = 0 ;
_last_bw_estimate_TS = now ;
std::cerr << "new bw estimate: " << _estimated_bw << std::endl;
}
emit networkPacketReady() ;
}
if(_echo_output_device != NULL)
_echo_output_device->showFrame(image) ;
}
bool QVideoInputDevice::getNextEncodedPacket(RsVOIPDataChunk& chunk)