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The qTox Project is not associated with the Tox Project in any way, with the exception of "qTox" using the Tox Projet's "toxcore" collection of libraries. In particular, the Tox Projet does not own copyright over the qTox Project's "qTox" collection of software, source code, and assets. The qTox Project's assets are under the sole copyright of the qTox contributors, and no partiular rights are granted to the Tox Project.
77 lines
2.6 KiB
C++
77 lines
2.6 KiB
C++
/*
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Copyright © 2014-2015 by The qTox Project
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This file is part of qTox, a Qt-based graphical interface for Tox.
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qTox 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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qTox 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. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with qTox. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef VIDEOFRAME_H
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#define VIDEOFRAME_H
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#include <QMutex>
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#include <QImage>
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#include <functional>
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struct AVFrame;
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struct AVCodecContext;
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struct vpx_image;
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/// VideoFrame takes ownership of an AVFrame* and allows fast conversions to other formats
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/// Ownership of all video frame buffers is kept by the VideoFrame, even after conversion
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/// All references to the frame data become invalid when the VideoFrame is deleted
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/// We try to avoid pixel format conversions as much as possible, at the cost of some memory
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/// All methods are thread-safe. If provided freelistCallback will be called by the destructor,
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/// unless releaseFrame was called in between.
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class VideoFrame
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{
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public:
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VideoFrame(AVFrame* frame);
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VideoFrame(AVFrame* frame, std::function<void()> freelistCallback);
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VideoFrame(AVFrame* frame, int w, int h, int fmt, std::function<void()> freelistCallback);
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~VideoFrame();
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/// Return the size of the original frame
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QSize getSize();
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/// Frees all internal buffers and frame data, removes the freelistCallback
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/// This makes all converted objects that shares our internal buffers invalid
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void releaseFrame();
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/// Converts the VideoFrame to a QImage that shares our internal video buffer
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QImage toQImage(QSize size = QSize());
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/// Converts the VideoFrame to a vpx_image_t that shares our internal video buffer
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/// Free it with operator delete, NOT vpx_img_free
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vpx_image* toVpxImage();
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protected:
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bool convertToRGB24(QSize size = QSize());
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bool convertToYUV420();
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void releaseFrameLockless();
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private:
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// Disable copy. Use a shared_ptr if you need copies.
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VideoFrame(const VideoFrame& other)=delete;
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VideoFrame& operator=(const VideoFrame& other)=delete;
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private:
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std::function<void()> freelistCallback;
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QMutex biglock;
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AVFrame* frameOther, *frameYUV420, *frameRGB24;
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int width, height;
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int pixFmt;
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};
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#endif // VIDEOFRAME_H
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