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63 lines
2.2 KiB
63 lines
2.2 KiB
/* |
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Copyright (C) 2014 by Project Tox <https://tox.im> |
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This file is part of qTox, a Qt-based graphical interface for Tox. |
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This program is libre software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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See the COPYING file for more details. |
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*/ |
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#ifndef CAMERA_H |
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#define CAMERA_H |
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#include <QCamera> |
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#include <QVideoFrame> |
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#include <QAbstractVideoSurface> |
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#include "vpx/vpx_image.h" |
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/** |
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* This class is a wrapper to share a camera's captured video frames |
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* In Qt cameras normally only send their frames to a single output at a time |
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* So you can't, for example, send the frames over the network |
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* and output them to a widget on the screen at the same time |
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* |
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* Instead this class allows objects to surscribe and unsuscribe, starting |
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* the camera only when needed, and giving access to the last frame |
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**/ |
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class Camera : private QAbstractVideoSurface |
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{ |
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Q_OBJECT |
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public: |
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Camera(); |
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void suscribe(); ///< Call this once before trying to get frames |
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void unsuscribe(); ///< Call this once when you don't need frames anymore |
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QVideoFrame getLastFrame(); ///< Get the last captured frame |
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QImage getLastImage(); ///< Convert the last frame to a QImage (can be expensive !) |
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vpx_image getLastVPXImage(); ///< Convert the last frame to a vpx_image (can be expensive !) |
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bool isFormatSupported(const QVideoSurfaceFormat & format) const; |
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private slots: |
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void onCameraError(QCamera::Error value); |
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private: |
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bool start(const QVideoSurfaceFormat &format); |
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bool present(const QVideoFrame &frame); |
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QList<QVideoFrame::PixelFormat> supportedPixelFormats(QAbstractVideoBuffer::HandleType handleType) const; |
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private: |
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int refcount; ///< Number of users suscribed to the camera |
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QCamera *camera; |
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QVideoFrame lastFrame; |
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int frameFormat; |
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QList<QVideoFrame::PixelFormat> supportedFormats; |
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}; |
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#endif // CAMERA_H
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