gstreamer/ext/gl/gstglmixerpad.h
Matthew Waters 02fdc64844 glvideomixer: don't upload if alpha <= 0
Implemented using a upload_buffer vfunc within GstGLMixer allowing
NULL uploaded buffers.
2017-12-09 19:31:52 +00:00

71 lines
2.3 KiB
C

/*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_GL_MIXER_PAD_H__
#define __GST_GL_MIXER_PAD_H__
#include <gst/gst.h>
#include <gst/video/gstvideoaggregator.h>
#include <gst/gl/gstgldisplay.h>
#include <gst/gl/gstglupload.h>
G_BEGIN_DECLS
typedef struct _GstGLMixer GstGLMixer;
typedef struct _GstGLMixerFrameData GstGLMixerFrameData;
#define GST_TYPE_GL_MIXER_PAD (gst_gl_mixer_pad_get_type())
#define GST_GL_MIXER_PAD(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_MIXER_PAD, GstGLMixerPad))
#define GST_GL_MIXER_PAD_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GL_MIXER_PAD, GstGLMixerPadClass))
#define GST_IS_GL_MIXER_PAD(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_MIXER_PAD))
#define GST_IS_GL_MIXER_PAD_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GL_MIXER_PAD))
#define GST_GL_MIXER_PAD_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_GL_MIXER_PAD,GstGLMixerPadClass))
typedef struct _GstGLMixerPad GstGLMixerPad;
typedef struct _GstGLMixerPadClass GstGLMixerPadClass;
/* all information needed for one video stream */
struct _GstGLMixerPad
{
GstVideoAggregatorPad parent; /* subclass the pad */
/* <private> */
GstGLUpload *upload;
GstGLColorConvert *convert;
GstBuffer *gl_buffer;
};
struct _GstGLMixerPadClass
{
GstVideoAggregatorPadClass parent_class;
GstBuffer * (*upload_buffer) (GstGLMixer * mix, GstGLMixerFrameData * frame, GstBuffer * buffer);
};
GType gst_gl_mixer_pad_get_type (void);
G_END_DECLS
#endif /* __GST_GL_MIXER_PAD_H__ */