gstreamer/gst-libs/gst/gl/gstglmixer.h

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/*
* GStreamer
* Copyright (C) 2009 Julien Isorce <julien.isorce@gmail.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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_GL_MIXER_H__
#define __GST_GL_MIXER_H__
#include <gst/gst.h>
#include <gst/video/video.h>
#include "gstglmixerpad.h"
G_BEGIN_DECLS
#define GST_TYPE_GL_MIXER (gst_gl_mixer_get_type())
#define GST_GL_MIXER(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_MIXER, GstGLMixer))
#define GST_GL_MIXER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GL_MIXER, GstGLMixerClass))
#define GST_IS_GL_MIXER(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_MIXER))
#define GST_IS_GL_MIXER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GL_MIXER))
#define GST_GL_MIXER_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_GL_MIXER,GstGLMixerClass))
typedef struct _GstGLMixer GstGLMixer;
typedef struct _GstGLMixerClass GstGLMixerClass;
typedef gboolean (*GstGLMixerSetCaps) (GstGLMixer* mixer,
GstCaps* outcaps);
typedef void (*GstGLMixerReset) (GstGLMixer *mixer);
typedef gboolean (*GstGLMixerProcessFunc) (GstGLMixer *mix,
GPtrArray *buffers, GstBuffer *outbuf);
struct _GstGLMixer
{
GstElement element;
/* pad */
GstPad *srcpad;
/* Lock to prevent the state to change while blending */
GMutex *state_lock;
/* Sink pads using Collect Pads from core's base library */
GstCollectPads *collect;
/* sinkpads, a GSList of GstGLMixerPads */
GSList *sinkpads;
GPtrArray *array_buffers;
gint numpads;
GstClockTime last_ts;
/* the master pad */
GstGLMixerPad *master;
gint width;
gint height;
gboolean setcaps;
gboolean sendseg;
gint fps_n;
gint fps_d;
/* Next available sinkpad index */
gint next_sinkpad;
/* sink event handling */
GstPadEventFunction collect_event;
guint64 segment_position;
gdouble segment_rate;
GstGLDisplay *display;
GLuint fbo;
GLuint depthbuffer;
};
struct _GstGLMixerClass
{
GstElementClass parent_class;
GstGLMixerSetCaps set_caps;
GstGLMixerReset reset;
GstGLMixerProcessFunc process_buffers;
};
GType gst_gl_mixer_get_type(void);
G_END_DECLS
#endif /* __GST_GL_MIXER_H__ */