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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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new caopengllayersink element
renders gstreamer gl scene/video frames to a caopengllayer retreivable from the "layer" property.
This commit is contained in:
Matthew Waters
Tim-Philipp Müller
parent
1cf843292b
commit
e5708eb453
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@ -4,6 +4,8 @@ plugin_LTLIBRARIES = libgstopengl.la
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AM_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_BASE_CFLAGS) $(GST_CFLAGS)
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AM_LIBS = $(GST_BASE_LIBS) $(GST_PLUGINS_BASE_LIBS)
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libgstopengl_la_LIBTOOLFLAGS = $(GST_PLUGIN_LIBTOOLFLAGS)
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# full opengl required
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if USE_OPENGL
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OPENGL_SOURCES = \
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@ -84,6 +86,23 @@ libgstopengl_la_SOURCES += \
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endif
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endif
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if HAVE_WINDOW_COCOA
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libgstopengl_la_SOURCES += \
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caopengllayersink.m \
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caopengllayersink.h
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libgstopengl_la_OBJCFLAGS = \
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-I$(top_srcdir)/gst-libs \
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-I$(top_builddir)/gst-libs \
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$(GL_OBJCFLAGS) \
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$(GST_PLUGINS_BASE_CFLAGS) \
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$(GST_BASE_CFLAGS) \
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$(GST_OBJCFLAGS)
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libgstopengl_la_LIBTOOLFLAGS += --tag=CC
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endif
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# check order of CFLAGS and LIBS, shouldn't the order be the other way around
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# (like in AM_CFLAGS)?
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libgstopengl_la_CFLAGS = \
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@ -110,5 +129,4 @@ libgstopengl_la_LIBADD = \
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$(GRAPHENE_LIBS)
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libgstopengl_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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libgstopengl_la_LIBTOOLFLAGS = $(GST_PLUGIN_LIBTOOLFLAGS)
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98
ext/gl/caopengllayersink.h
Normal file
98
ext/gl/caopengllayersink.h
Normal file
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@ -0,0 +1,98 @@
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/*
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* GStreamer
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* Copyright (C) 2015 Matthew Waters <matthew@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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#ifndef __CA_OPENGL_LAYER_SINK_H__
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#define __CA_OPENGL_LAYER_SINK_H__
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#include <gst/gst.h>
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#include <gst/video/gstvideosink.h>
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#include <gst/video/video.h>
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#include <gst/gl/gl.h>
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#include <gst/gl/cocoa/gstglcaopengllayer.h>
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G_BEGIN_DECLS
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#define GST_TYPE_CA_OPENGL_LAYER_SINK \
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(gst_ca_opengl_layer_sink_get_type())
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#define GST_CA_OPENGL_LAYER_SINK(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CA_OPENGL_LAYER_SINK,GstCAOpenGLLayerSink))
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#define GST_CA_OPENGL_LAYER_SINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CA_OPENGL_LAYER_SINK,GstCAOpenGLLayerSinkClass))
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#define GST_IS_CA_OPENGL_LAYER_SINK(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CA_OPENGL_LAYER_SINK))
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#define GST_IS_CA_OPENGL_LAYER_SINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CA_OPENGL_LAYER_SINK))
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typedef struct _GstCAOpenGLLayerSink GstCAOpenGLLayerSink;
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typedef struct _GstCAOpenGLLayerSinkClass GstCAOpenGLLayerSinkClass;
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struct _GstCAOpenGLLayerSink
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{
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GstVideoSink video_sink;
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/* caps */
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GstVideoInfo info;
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GstCaps *gl_caps;
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/* gl state */
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GstGLDisplay *display;
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GstGLContext *other_context;
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GstGLContext *context;
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GstGLUpload *upload;
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GstGLColorConvert *convert;
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guint next_tex;
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GstBuffer *next_buffer;
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GstGLCAOpenGLLayer *layer;
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volatile gint to_quit;
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gboolean keep_aspect_ratio;
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GstBufferPool *pool;
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/* avoid replacing the stored_buffer while drawing */
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GMutex drawing_lock;
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GstBuffer *stored_buffer;
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GLuint redisplay_texture;
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gboolean caps_change;
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guint window_width;
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guint window_height;
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/* gl state */
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GstGLShader *redisplay_shader;
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GLuint vao;
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GLuint vertex_buffer;
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GLint attr_position;
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GLint attr_texture;
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};
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struct _GstCAOpenGLLayerSinkClass
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{
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GstVideoSinkClass video_sink_class;
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};
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GType gst_ca_opengl_layer_sink_get_type(void);
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G_END_DECLS
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#endif /* __CA_OPENGL_LAYER_SINK__ */
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1031
ext/gl/caopengllayersink.m
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1031
ext/gl/caopengllayersink.m
Normal file
File diff suppressed because it is too large
Load diff
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@ -75,6 +75,11 @@
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#endif /* HAVE_PNG */
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#endif /* GST_GL_HAVE_OPENGL */
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#if GST_GL_HAVE_WINDOW_COCOA
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/* avoid including Cocoa/CoreFoundation from a C file... */
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extern GType gst_ca_opengl_layer_sink_get_type (void);
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#endif
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#ifdef USE_EGL_RPI
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#include <bcm_host.h>
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#endif
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@ -202,6 +207,12 @@ plugin_init (GstPlugin * plugin)
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#endif
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#endif /* HAVE_PNG */
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#endif /* GST_GL_HAVE_OPENGL */
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#if GST_GL_HAVE_WINDOW_COCOA
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if (!gst_element_register (plugin, "caopengllayersink",
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GST_RANK_NONE, gst_ca_opengl_layer_sink_get_type ())) {
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return FALSE;
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}
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#endif
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return TRUE;
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}
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