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glmixer can be seen as a glfilter except it handles N requested sink pads. Each sink pad and the src pad are video/x-raw-gl. glmixer is responsible for managing different framerates from inputs. It uses OpenGL context sharing. It means that each input is in its own OpenGL context shared together and shared with the OpenGL context of the ouput gl chain. Also add a glmosaic which is an example of implementation of glmixer. For now glmosaic is a cube but it will be fixed in the next commits. For now the glmixer has some weird behaviours in some configurations but it will be improved in the next commits. The autotools builds is temporarly broken since those changes have been made on win32.
77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
/*
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* GStreamer
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* Copyright (C) 2009 Julien Isorce <julien.isorce@gmail.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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_GL_MIXER_PAD_H__
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#define __GST_GL_MIXER_PAD_H__
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#include <gst/gst.h>
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#include <gst/base/gstcollectpads.h>
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#include "gstglbuffer.h"
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G_BEGIN_DECLS
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#define GST_TYPE_GL_MIXER_PAD (gst_gl_mixer_pad_get_type())
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#define GST_GL_MIXER_PAD(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_MIXER_PAD, GstGLMixerPad))
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#define GST_GL_MIXER_PAD_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GL_MIXER_PAD, GstGLMixerPadiClass))
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#define GST_IS_GL_MIXER_PAD(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_MIXER_PAD))
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#define GST_IS_GL_MIXER_PAD_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GL_MIXER_PAD))
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typedef struct _GstGLMixerPad GstGLMixerPad;
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typedef struct _GstGLMixerPadClass GstGLMixerPadClass;
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typedef struct _GstGLMixerCollect GstGLMixerCollect;
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struct _GstGLMixerCollect
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{
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GstCollectData collect; /* we extend the CollectData */
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GstBuffer *buffer; /* the queued buffer for this pad */
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GstGLMixerPad *mixpad;
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};
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/* all information needed for one video stream */
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struct _GstGLMixerPad
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{
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GstPad parent; /* subclass the pad */
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gint64 queued;
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gint width;
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gint height;
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gint fps_n;
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gint fps_d;
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GstGLDisplay *display;
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GstGLMixerCollect *mixcol;
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};
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struct _GstGLMixerPadClass
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{
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GstPadClass parent_class;
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};
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G_END_DECLS
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#endif /* __GST_GL_MIXER_PAD_H__ */
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