gstreamer/ext/qt/gstqsgtexture.h
Sebastian Dröge e3c16d0194 qmlglsink: Keep old buffers around a bit longer if they were bound by QML
We don't know exactly when QML will stop using them but it should be
safe to unref them after at least 2 more buffers were bound.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/merge_requests/810>
2020-11-11 11:37:27 +00:00

61 lines
1.7 KiB
C++

/*
* GStreamer
* Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_QSG_TEXTURE_H__
#define __GST_QSG_TEXTURE_H__
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/gl/gl.h>
#include "gstqtgl.h"
#include <QtQuick/QSGTexture>
#include <QtGui/QOpenGLFunctions>
class GstQSGTexture : public QSGTexture, protected QOpenGLFunctions
{
Q_OBJECT
public:
GstQSGTexture ();
~GstQSGTexture ();
void setCaps (GstCaps * caps);
gboolean setBuffer (GstBuffer * buffer);
GstBuffer * getBuffer (gboolean * was_bound);
/* QSGTexture */
void bind ();
int textureId () const;
QSize textureSize () const;
bool hasAlphaChannel () const;
bool hasMipmaps () const;
private:
GstBuffer * buffer_;
gboolean buffer_was_bound;
GstBuffer * sync_buffer_;
GstGLContext * qt_context_;
GstMemory * mem_;
GLuint dummy_tex_id_;
GstVideoInfo v_info;
GstVideoFrame v_frame;
};
#endif /* __GST_QSG_TEXTURE_H__ */