gstreamer/ext/gl/caopengllayersink.h
Matthew Waters 057130b93d caopengllayersink: correctly use the sync meta across multiple contexts
1. Set the sync point after the (possible) upload has occured
2. Wait in the correct GL context (the draw context)

Note: We don't add the GL sync meta to the input buffer as it's not
writable and a copy would be expensive.

Similar to the change with the same name for glimagesink
2015-05-20 00:36:48 +10:00

100 lines
2.8 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 __CA_OPENGL_LAYER_SINK_H__
#define __CA_OPENGL_LAYER_SINK_H__
#include <gst/gst.h>
#include <gst/video/gstvideosink.h>
#include <gst/video/video.h>
#include <gst/gl/gl.h>
#include <gst/gl/cocoa/gstglcaopengllayer.h>
G_BEGIN_DECLS
#define GST_TYPE_CA_OPENGL_LAYER_SINK \
(gst_ca_opengl_layer_sink_get_type())
#define GST_CA_OPENGL_LAYER_SINK(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CA_OPENGL_LAYER_SINK,GstCAOpenGLLayerSink))
#define GST_CA_OPENGL_LAYER_SINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CA_OPENGL_LAYER_SINK,GstCAOpenGLLayerSinkClass))
#define GST_IS_CA_OPENGL_LAYER_SINK(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CA_OPENGL_LAYER_SINK))
#define GST_IS_CA_OPENGL_LAYER_SINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CA_OPENGL_LAYER_SINK))
typedef struct _GstCAOpenGLLayerSink GstCAOpenGLLayerSink;
typedef struct _GstCAOpenGLLayerSinkClass GstCAOpenGLLayerSinkClass;
struct _GstCAOpenGLLayerSink
{
GstVideoSink video_sink;
/* caps */
GstVideoInfo info;
GstCaps *gl_caps;
/* gl state */
GstGLDisplay *display;
GstGLContext *other_context;
GstGLContext *context;
guint next_tex;
GstBuffer *next_buffer;
GstBuffer *next_sync;
GstGLCAOpenGLLayer *layer;
volatile gint to_quit;
gboolean keep_aspect_ratio;
GstBufferPool *pool;
/* avoid replacing the stored_buffer while drawing */
GMutex drawing_lock;
GstBuffer *stored_buffer;
GstBuffer *stored_sync;
GLuint redisplay_texture;
gboolean caps_change;
guint window_width;
guint window_height;
/* gl state */
GstGLShader *redisplay_shader;
GLuint vao;
GLuint vertex_buffer;
GLuint vbo_indices;
GLint attr_position;
GLint attr_texture;
};
struct _GstCAOpenGLLayerSinkClass
{
GstVideoSinkClass video_sink_class;
};
GType gst_ca_opengl_layer_sink_get_type(void);
GType gst_ca_opengl_layer_sink_bin_get_type (void);
G_END_DECLS
#endif /* __CA_OPENGL_LAYER_SINK__ */