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33a8e28207
This moves all the conversion related code to a single place, allows less code-duplication inside compositor and makes the glmixer code less awkward. It's also the same pattern as used by GstAudioAggregator.
68 lines
2.1 KiB
C
68 lines
2.1 KiB
C
/* Generic compositor plugin pad
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* Copyright (C) 2008 Wim Taymans <wim@fluendo.com>
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* Copyright (C) 2010 Sebastian Dröge <sebastian.droege@collabora.co.uk>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_COMPOSITOR_PAD_H__
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#define __GST_COMPOSITOR_PAD_H__
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#include <gst/gst.h>
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#include <gst/video/video.h>
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G_BEGIN_DECLS
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#define GST_TYPE_COMPOSITOR_PAD (gst_compositor_pad_get_type())
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#define GST_COMPOSITOR_PAD(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_COMPOSITOR_PAD, GstCompositorPad))
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#define GST_COMPOSITOR_PAD_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_COMPOSITOR_PAD, GstCompositorPadClass))
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#define GST_IS_COMPOSITOR_PAD(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_COMPOSITOR_PAD))
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#define GST_IS_COMPOSITOR_PAD_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_COMPOSITOR_PAD))
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typedef struct _GstCompositorPad GstCompositorPad;
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typedef struct _GstCompositorPadClass GstCompositorPadClass;
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/**
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* GstCompositorPad:
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*
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* The opaque #GstCompositorPad structure.
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*/
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struct _GstCompositorPad
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{
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GstVideoAggregatorConvertPad parent;
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/* properties */
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gint xpos, ypos;
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gint width, height;
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gdouble alpha;
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gdouble crossfade;
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gboolean crossfaded;
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};
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struct _GstCompositorPadClass
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{
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GstVideoAggregatorConvertPadClass parent_class;
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};
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GType gst_compositor_pad_get_type (void);
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G_END_DECLS
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#endif /* __GST_COMPOSITOR_PAD_H__ */
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