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7b4e1fd602
Adding Direct3D11 backend Qt6 QML videosink element, qml6d3d11sink. Implementation details are similar to the qt6 plugin in -good but there are a few notable differences. * qml6d3d11sink accepts all GstD3D11 supported video formats (e.g., NV12). * Scene graph (owned by qml6d3d11sink) will hold dedicated and sharable RGBA texture which belongs to Qt6's Direct3D11 device, instead of sharing GStreamer's own texture with Qt6. * All rendering operations will be done by using GStreamer's Direct3D11 device. Specifically, upstream texture will be copied (in case of RGBA) or converted to the above mentioned Qt6's sharable texture. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3707>
63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
/* GStreamer
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* Copyright (C) 2022 Matthew Waters <matthew@centricular.com>
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* Copyright (C) 2023 Seungha Yang <seungha@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#pragma once
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include <gst/d3d11/gstd3d11.h>
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#include <QtQuick/QQuickItem>
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#include <QtQuick/QSGTexture>
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#include <QtQuick/QSGTextureProvider>
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#include <QtQuick/QSGSimpleTextureNode>
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class GstQSG6D3D11Node : public QSGTextureProvider, public QSGSimpleTextureNode
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{
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Q_OBJECT
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public:
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GstQSG6D3D11Node (QQuickItem * item, GstD3D11Device * device);
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~GstQSG6D3D11Node ();
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QSGTexture *texture() const override;
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void SetCaps (GstCaps * caps);
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void SetBuffer (GstBuffer * buffer);
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private:
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void resize (guint width, guint height);
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void mapTexture ();
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void unmapTexture ();
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private:
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QQuickWindow *window_;
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GstD3D11Device *qt_device_;
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GstD3D11Device *device_ = nullptr;
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GstBuffer *buffer_ = nullptr;
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GstCaps *caps_ = nullptr;
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GstBuffer *sharable_ = nullptr;
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GstBuffer *backbuffer_ = nullptr;
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GstVideoFrame frame_;
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GstVideoInfo info_;
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GstVideoInfo render_info_;
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GstBufferPool *pool_ = nullptr;
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GstD3D11Converter *conv_ = nullptr;
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};
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