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
2012-11-08 11:53:56 +00:00
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_GL_MIXER_H__
#define __GST_GL_MIXER_H__
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/gl/gl.h>
#include <gst/gl/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))
#define GST_GL_MIXER_GET_LOCK(mix) (GST_GL_MIXER(mix)->lock)
#define GST_GL_MIXER_LOCK(mix) (g_mutex_lock(&GST_GL_MIXER_GET_LOCK (mix)))
#define GST_GL_MIXER_UNLOCK(mix) (g_mutex_unlock(&GST_GL_MIXER_GET_LOCK (mix)))
typedef struct _GstGLMixer GstGLMixer;
typedef struct _GstGLMixerClass GstGLMixerClass;
typedef struct _GstGLMixerPrivate GstGLMixerPrivate;
typedef struct _GstGLMixerFrameData GstGLMixerFrameData;
typedef gboolean (*GstGLMixerSetCaps) (GstGLMixer* mixer,
GstCaps* outcaps);
typedef void (*GstGLMixerReset) (GstGLMixer *mixer);
typedef gboolean (*GstGLMixerProcessFunc) (GstGLMixer *mix,
GPtrArray *buffers, GstBuffer *outbuf);
typedef gboolean (*GstGLMixerProcessTextures) (GstGLMixer *mix,
GPtrArray *frames, guint out_tex);
struct _GstGLMixer
{
GstElement element;
GstGLMixerPrivate *priv;
/* pad */
GstPad *srcpad;
/* Lock to prevent the state to change while blending */
GMutex lock;
/* Sink pads using Collect Pads from core's base library */
GstCollectPads *collect;
/* sinkpads, a GSList of GstGLMixerPads */
GSList *sinkpads;
gint numpads;
/* Next available sinkpad index */
gint next_sinkpad;
GPtrArray *array_buffers;
GPtrArray *frames;
GstCaps *current_caps;
GstVideoInfo out_info;
GLuint out_tex_id;
GstGLDownload *download;
gboolean newseg_pending;
gboolean flush_stop_pending;
gboolean send_stream_start;
gboolean send_caps;
GstSegment segment;
GstClockTime ts_offset;
guint64 nframes;
/* sink event handling */
gdouble proportion;
GstClockTime earliest_time;
guint64 qos_processed, qos_dropped;
GstGLDisplay *display;
GstGLContext *context;
GLuint fbo;
GLuint depthbuffer;
GType pad_type;
};
struct _GstGLMixerClass
{
GstElementClass parent_class;
GstGLMixerSetCaps set_caps;
GstGLMixerReset reset;
GstGLMixerProcessFunc process_buffers;
GstGLMixerProcessTextures process_textures;
};
struct _GstGLMixerFrameData
{
GstGLMixerPad *pad;
guint texture;
};
GType gst_gl_mixer_get_type(void);
gboolean gst_gl_mixer_process_textures (GstGLMixer * mix, GstBuffer * outbuf);
void gst_gl_mixer_set_pad_type (GstGLMixer * mix, GType pad_type);
G_END_DECLS
#endif /* __GST_GL_MIXER_H__ */