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8d122f21ad
The gltestsrc element was refactored to inherit from this base class which handles the GL context. The sub-class only needs to implement the gl_start, gl_stop and fill_gl_memory vfuncs, along with properly advertizing the GL APIs it supports through the supported_gl_api GstGLBaseSrc class attribute.
96 lines
3.2 KiB
C
96 lines
3.2 KiB
C
/*
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* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) 2002,2007 David A. Schleef <ds@schleef.org>
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* Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
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* Copyright (C) 2019 Philippe Normand <philn@igalia.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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#ifndef __GST_GL_BASE_SRC_H__
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#define __GST_GL_BASE_SRC_H__
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#include <gst/base/gstpushsrc.h>
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#include <gst/gl/gstgl_fwd.h>
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G_BEGIN_DECLS
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GST_GL_API
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GType gst_gl_base_src_get_type(void);
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#define GST_TYPE_GL_BASE_SRC (gst_gl_base_src_get_type())
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#define GST_GL_BASE_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_BASE_SRC,GstGLBaseSrc))
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#define GST_GL_BASE_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GL_BASE_SRC,GstGLBaseSrcClass))
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#define GST_IS_GL_BASE_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_BASE_SRC))
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#define GST_IS_GL_BASE_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GL_BASE_SRC))
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#define GST_GL_BASE_SRC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_GL_BASE_SRC,GstGLBaseSrcClass))
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/**
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* GstGLBaseSrc:
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* @display: the currently configured #GstGLDisplay
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* @context: the currently configured #GstGLContext
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* @out_caps: the currently configured output #GstCaps
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* @out_info: the currently configured output #GstVideoInfo
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* @running_time: the total running time
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*
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* The parent instance type of a base GStreamer GL Video source.
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*/
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struct _GstGLBaseSrc {
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GstPushSrc parent;
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/*< public >*/
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GstGLDisplay *display;
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GstGLContext *context;
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/* video state */
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GstVideoInfo out_info;
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GstCaps *out_caps;
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/* total running time */
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GstClockTime running_time;
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/*< private >*/
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gpointer _padding[GST_PADDING];
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GstGLBaseSrcPrivate *priv;
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};
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/**
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* GstGLBaseSrcClass:
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* @supported_gl_api: the logical-OR of #GstGLAPI's supported by this element
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* @gl_start: called in the GL thread to setup the element GL state.
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* @gl_stop: called in the GL thread to setup the element GL state.
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* @fill_gl_memory: called in the GL thread to fill the current video texture.
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*
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* The base class for GStreamer GL Video sources.
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*/
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struct _GstGLBaseSrcClass {
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GstPushSrcClass parent_class;
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/*< public >*/
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GstGLAPI supported_gl_api;
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gboolean (*gl_start) (GstGLBaseSrc *src);
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void (*gl_stop) (GstGLBaseSrc *src);
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gboolean (*fill_gl_memory) (GstGLBaseSrc *src, GstGLMemory *mem);
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/*< private >*/
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gpointer _padding[GST_PADDING];
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};
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G_END_DECLS
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#endif /* __GST_GL_BASE_SRC_H__ */
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