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CoglGst is a GStreamer integration library that facilitates video playback using the Cogl API. It works by retrieving each video frame from the GStreamer pipeline and attaching it to a Cogl pipeline in the form of a Cogl texture along with possible color model conversion shaders. The pipeline is then retrieved by the user during each draw. An example use of the CoglGst API is included in the examples directory. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit dfb94cf4b0b6b42d6465df362a0c0af780596890)
122 lines
3.5 KiB
C
122 lines
3.5 KiB
C
/*
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* Cogl-GStreamer.
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*
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* GStreamer integration library for Cogl.
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*
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* cogl-gst-video-sink.h - Gstreamer Video Sink that renders to a
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* Cogl Pipeline.
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*
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* Authored by Jonathan Matthew <jonathan@kaolin.wh9.net>,
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* Chris Lord <chris@openedhand.com>
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* Damien Lespiau <damien.lespiau@intel.com>
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* Matthew Allum <mallum@openedhand.com>
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* Plamena Manolova <plamena.n.manolova@intel.com>
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*
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* Copyright (C) 2007, 2008 OpenedHand
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* Copyright (C) 2009, 2010, 2013 Intel Corporation
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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 Lesser 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser 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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FLOP
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*/
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#ifndef __COGL_GST_VIDEO_SINK_H__
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#define __COGL_GST_VIDEO_SINK_H__
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#include <glib-object.h>
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#include <gst/base/gstbasesink.h>
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#include <cogl/cogl.h>
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G_BEGIN_DECLS
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#define COGL_GST_TYPE_VIDEO_SINK cogl_gst_video_sink_get_type()
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#define COGL_GST_VIDEO_SINK(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), \
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COGL_GST_TYPE_VIDEO_SINK, CoglGstVideoSink))
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#define COGL_GST_VIDEO_SINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST ((klass), \
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COGL_GST_TYPE_VIDEO_SINK, CoglGstVideoSinkClass))
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#define COGL_GST_IS_VIDEO_SINK(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
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COGL_GST_TYPE_VIDEO_SINK))
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#define COGL_GST_IS_VIDEO_SINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE ((klass), \
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COGL_GST_TYPE_VIDEO_SINK))
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#define COGL_GST_VIDEO_SINK_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj), \
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COGL_GST_TYPE_VIDEO_SINK, CoglGstVideoSinkClass))
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#define COGL_GST_PARAM_STATIC \
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(G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB)
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#define COGL_GST_PARAM_READABLE \
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(G_PARAM_READABLE | COGL_GST_PARAM_STATIC)
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#define COGL_GST_PARAM_WRITABLE \
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(G_PARAM_WRITABLE | COGL_GST_PARAM_STATIC)
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#define COGL_GST_PARAM_READWRITE \
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(G_PARAM_READABLE | G_PARAM_WRITABLE | COGL_GST_PARAM_STATIC)
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typedef struct _CoglGstVideoSink CoglGstVideoSink;
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typedef struct _CoglGstVideoSinkClass CoglGstVideoSinkClass;
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typedef struct _CoglGstVideoSinkPrivate CoglGstVideoSinkPrivate;
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struct _CoglGstVideoSink
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{
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GstBaseSink parent;
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CoglGstVideoSinkPrivate *priv;
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};
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struct _CoglGstVideoSinkClass
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{
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GstBaseSinkClass parent_class;
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void (* new_frame) (CoglGstVideoSink *sink);
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void (* pipeline_ready) (CoglGstVideoSink *sink);
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void *_padding_dummy[8];
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};
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GType cogl_gst_video_sink_get_type (void) G_GNUC_CONST;
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CoglGstVideoSink*
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cogl_gst_video_sink_new (CoglContext *ctx);
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CoglPipeline*
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cogl_gst_video_sink_get_pipeline (CoglGstVideoSink *vt);
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void
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cogl_gst_video_sink_set_context (CoglGstVideoSink *vt,
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CoglContext *ctx);
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GMainLoop*
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cogl_gst_video_sink_get_main_loop (CoglGstVideoSink *loop);
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int
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cogl_gst_video_sink_get_free_layer (CoglGstVideoSink *sink);
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int
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cogl_gst_video_sink_attach_frame (CoglGstVideoSink *sink,
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CoglPipeline *pln);
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G_END_DECLS
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#endif
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