RetroShare/plugins/VOIP/gui/QVideoDevice.h

103 lines
3.5 KiB
C++

/*******************************************************************************
* plugins/VOIP/gui/QVideoDevice.h *
* *
* Copyright (C) 2012 by Retroshare Team <retroshare.project@gmail.com> *
* *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU Affero General Public License as *
* published by the Free Software Foundation, either version 3 of the *
* License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Affero General Public License for more details. *
* *
* You should have received a copy of the GNU Affero General Public License *
* along with this program. If not, see <https://www.gnu.org/licenses/>. *
* *
*******************************************************************************/
#pragma once
#include <QLabel>
#include <QCamera>
#include "interface/rsVOIP.h"
#include "gui/VideoProcessor.h"
class VideoEncoder ;
class QCameraImageCapture;
// Responsible from displaying the video. The source of the video is
// a VideoDecoder object, which uses a codec.
//
class QVideoOutputDevice: public QLabel
{
public:
QVideoOutputDevice(QWidget *parent = 0) ;
void showFrame(const QImage&) ;
void showFrameOff() ;
};
// Responsible for grabbing the video from the webcam and sending it to the
// VideoEncoder object.
//
class QVideoInputDevice: public QObject
{
Q_OBJECT
public:
QVideoInputDevice(QWidget *parent = 0) ;
~QVideoInputDevice() ;
// Captured images are sent to this encoder. Can be NULL.
//
void setVideoProcessor(VideoProcessor *venc) { _video_processor = venc ; }
// All images received will be echoed to this target. We could use signal/slots, but it's
// probably faster this way. Can be NULL.
//
void setEchoVideoTarget(QVideoOutputDevice *odev) { _echo_output_device = odev ; }
// get the next encoded video data chunk.
//
bool getNextEncodedPacket(RsVOIPDataChunk&) ;
// gets the estimated current bandwidth required to transmit the encoded data, in B/s
//
uint32_t currentBandwidth() const ;
// control
void start() ;
void stop() ;
bool stopped();
enum CameraStatus {
CAMERA_IS_READY = 0x00,
CANNOT_INITIALIZE_CAMERA = 0x01,
CAMERA_CANNOT_GRAB_FRAMES = 0x02
};
protected slots:
void grabFrame(int id, QVideoFrame f) ;
void errorHandling(CameraStatus status,QCamera::Error error);
signals:
void networkPacketReady() ;
void cameraCaptureInfo(CameraStatus status,QCamera::Error qt_cam_err_code);
private:
VideoProcessor *_video_processor ;
QTimer *_timer ;
QCamera *_capture_device;
QCameraImageCapture *_image_capture;
QVideoOutputDevice *_echo_output_device ;
std::list<RsVOIPDataChunk> _out_queue ;
};