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gstreamer/subprojects/gst-plugins-good/ext/qt/gstqsgtexture.h

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new qt5 qml GL video sink Very much in the same spirit as the Gtk GL sink Two things are provided 1. A QQuickItem subclass that renders out RGBA filled GstGLMemory buffers that is instantiated from qml. 2. A sink element that will push buffers into (1) To use 1. Declare the GstGLVideoItem in qml with an appropriate objectName property set. 2. Get the aforementioned GstGLVideoItem from qml using something like QQmlApplicationEngine engine; engine.load(QUrl(QStringLiteral("qrc:/main.qml"))); QObject *rootObject = engine.rootObjects().first(); QQuickItem *videoItem = rootObject->findChild<QQuickItem *> ("videoItem"); 3. Set the videoItem on the sink https://bugzilla.gnome.org/show_bug.cgi?id=752185
2015-07-06 13:10:51 +00:00
/*
* 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>
qml: implement the required multiple GL context synchonisation From GStreamer's GL context into the QML context
2015-08-08 15:28:03 +00:00
#include <gst/gl/gl.h>
new qt5 qml GL video sink Very much in the same spirit as the Gtk GL sink Two things are provided 1. A QQuickItem subclass that renders out RGBA filled GstGLMemory buffers that is instantiated from qml. 2. A sink element that will push buffers into (1) To use 1. Declare the GstGLVideoItem in qml with an appropriate objectName property set. 2. Get the aforementioned GstGLVideoItem from qml using something like QQmlApplicationEngine engine; engine.load(QUrl(QStringLiteral("qrc:/main.qml"))); QObject *rootObject = engine.rootObjects().first(); QQuickItem *videoItem = rootObject->findChild<QQuickItem *> ("videoItem"); 3. Set the videoItem on the sink https://bugzilla.gnome.org/show_bug.cgi?id=752185
2015-07-06 13:10:51 +00:00
qt: add support for building/running on android Including: - Necessary configure checks - Necessary compile time platform checks - Necessary runtime qt android platform detection - Escaping GLsync definition with Qt's GLES2 implementation https://bugzilla.gnome.org/show_bug.cgi?id=754466
2015-09-02 13:45:07 +00:00
#include "gstqtgl.h"
qt: add support for building on osx/ios Including: - Necessary configure checks - Necessary compile time platform checks - Necessary runtime qt iOS/OSX platform detection https://bugzilla.gnome.org/show_bug.cgi?id=755100
2015-09-14 17:14:37 +00:00
#include <QtQuick/QSGTexture>
#include <QtGui/QOpenGLFunctions>
qt: add support for building/running on android Including: - Necessary configure checks - Necessary compile time platform checks - Necessary runtime qt android platform detection - Escaping GLsync definition with Qt's GLES2 implementation https://bugzilla.gnome.org/show_bug.cgi?id=754466
2015-09-02 13:45:07 +00:00
new qt5 qml GL video sink Very much in the same spirit as the Gtk GL sink Two things are provided 1. A QQuickItem subclass that renders out RGBA filled GstGLMemory buffers that is instantiated from qml. 2. A sink element that will push buffers into (1) To use 1. Declare the GstGLVideoItem in qml with an appropriate objectName property set. 2. Get the aforementioned GstGLVideoItem from qml using something like QQmlApplicationEngine engine; engine.load(QUrl(QStringLiteral("qrc:/main.qml"))); QObject *rootObject = engine.rootObjects().first(); QQuickItem *videoItem = rootObject->findChild<QQuickItem *> ("videoItem"); 3. Set the videoItem on the sink https://bugzilla.gnome.org/show_bug.cgi?id=752185
2015-07-06 13:10:51 +00:00
class GstQSGTexture : public QSGTexture, protected QOpenGLFunctions
{
Q_OBJECT
public:
GstQSGTexture ();
~GstQSGTexture ();
void setCaps (GstCaps * caps);
qml: implement the required multiple GL context synchonisation From GStreamer's GL context into the QML context
2015-08-08 15:28:03 +00:00
gboolean setBuffer (GstBuffer * buffer);
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>
2020-11-03 13:58:30 +00:00
GstBuffer * getBuffer (gboolean * was_bound);
new qt5 qml GL video sink Very much in the same spirit as the Gtk GL sink Two things are provided 1. A QQuickItem subclass that renders out RGBA filled GstGLMemory buffers that is instantiated from qml. 2. A sink element that will push buffers into (1) To use 1. Declare the GstGLVideoItem in qml with an appropriate objectName property set. 2. Get the aforementioned GstGLVideoItem from qml using something like QQmlApplicationEngine engine; engine.load(QUrl(QStringLiteral("qrc:/main.qml"))); QObject *rootObject = engine.rootObjects().first(); QQuickItem *videoItem = rootObject->findChild<QQuickItem *> ("videoItem"); 3. Set the videoItem on the sink https://bugzilla.gnome.org/show_bug.cgi?id=752185
2015-07-06 13:10:51 +00:00
/* QSGTexture */
void bind ();
int textureId () const;
QSize textureSize () const;
bool hasAlphaChannel () const;
bool hasMipmaps () const;
private:
GstBuffer * buffer_;
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>
2020-11-03 13:58:30 +00:00
gboolean buffer_was_bound;
qml: implement the required multiple GL context synchonisation From GStreamer's GL context into the QML context
2015-08-08 15:28:03 +00:00
GstBuffer * sync_buffer_;
gstqmlgl: wrap raw GstGLContext into GWeakRef Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/merge_requests/1032>
2021-07-30 09:52:23 +00:00
GWeakRef qt_context_ref_;
qml: implement the required multiple GL context synchonisation From GStreamer's GL context into the QML context
2015-08-08 15:28:03 +00:00
GstMemory * mem_;
qmlglsink: Add dummy texture that is shown as placeholder for NULL buffers https://bugzilla.gnome.org/show_bug.cgi?id=782917
2017-05-21 13:26:12 +00:00
GLuint dummy_tex_id_;
new qt5 qml GL video sink Very much in the same spirit as the Gtk GL sink Two things are provided 1. A QQuickItem subclass that renders out RGBA filled GstGLMemory buffers that is instantiated from qml. 2. A sink element that will push buffers into (1) To use 1. Declare the GstGLVideoItem in qml with an appropriate objectName property set. 2. Get the aforementioned GstGLVideoItem from qml using something like QQmlApplicationEngine engine; engine.load(QUrl(QStringLiteral("qrc:/main.qml"))); QObject *rootObject = engine.rootObjects().first(); QQuickItem *videoItem = rootObject->findChild<QQuickItem *> ("videoItem"); 3. Set the videoItem on the sink https://bugzilla.gnome.org/show_bug.cgi?id=752185
2015-07-06 13:10:51 +00:00
GstVideoInfo v_info;
GstVideoFrame v_frame;
};
#endif /* __GST_QSG_TEXTURE_H__ */
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