gstreamer/subprojects/gst-plugins-good/ext/qt/gstqsgmaterial.h
Nirbheek Chauhan 14503a7d08 qmlgl: Can't use frame info if we don't have a frame
Fixes segfault accessing vinfo in: GST_VIDEO_FRAME_N_PLANES (&this->v_frame)

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5148>
2023-08-04 15:34:38 +00:00

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2 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_MATERIAL_H__
#define __GST_QSG_MATERIAL_H__
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/gl/gl.h>
#include "gstqtgl.h"
#include <QtQuick/QSGMaterial>
#include <QtQuick/QSGMaterialShader>
#include <QtGui/QOpenGLFunctions>
#include <QtGui/QOpenGLShaderProgram>
class GstQSGMaterialShader;
class GstQSGMaterial : public QSGMaterial
{
protected:
GstQSGMaterial();
~GstQSGMaterial();
public:
static GstQSGMaterial *new_for_format (GstVideoFormat format);
void setCaps (GstCaps * caps);
gboolean setBuffer (GstBuffer * buffer);
GstBuffer * getBuffer (gboolean * was_bound);
bool compatibleWith(GstVideoInfo *v_info);
void bind(GstQSGMaterialShader *, GstVideoFormat);
/* QSGMaterial */
QSGMaterialShader *createShader() const override;
private:
GstBuffer * buffer_;
gboolean buffer_was_bound;
GstBuffer * sync_buffer_;
GWeakRef qt_context_ref_;
GstMemory * mem_;
GstVideoInfo v_info;
GstVideoFrame v_frame;
float *cms_offset;
float *cms_ycoeff;
float *cms_ucoeff;
float *cms_vcoeff;
guint dummy_textures[GST_VIDEO_MAX_PLANES];
};
#endif /* __GST_QSG_MATERIAL_H__ */