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1361d06874
Original commit message from CVS: * gst/smpte/Makefile.am: * gst/smpte/gstsmpte.c: (gst_smpte_plugin_init): * gst/smpte/gstsmpte.h: * gst/smpte/gstsmptealpha.c: (gst_smpte_alpha_transition_type_get_type), (gst_smpte_alpha_get_type), (gst_smpte_alpha_base_init), (gst_smpte_alpha_class_init), (gst_smpte_alpha_update_mask), (gst_smpte_alpha_setcaps), (gst_smpte_alpha_get_unit_size), (gst_smpte_alpha_init), (gst_smpte_alpha_finalize), (gst_smpte_alpha_do_ayuv), (gst_smpte_alpha_do_i420), (gst_smpte_alpha_transform), (gst_smpte_alpha_set_property), (gst_smpte_alpha_get_property), (gst_smpte_alpha_plugin_init): * gst/smpte/gstsmptealpha.h: * gst/smpte/plugin.c: (plugin_init): Add new plugin that adds the SMPTE transition in the alpha channel of I420 and AYUV frames so that they can be blended with videomixer later on. Uses all niceties such as using base transform for efficient alloc and negotiation. It currently requires GstController to control the position in the transition effect.
74 lines
2 KiB
C
74 lines
2 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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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_SMPTE_ALPHA_H__
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#define __GST_SMPTE_ALPHA_H__
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include <gst/video/gstvideofilter.h>
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G_BEGIN_DECLS
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#include "gstmask.h"
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#define GST_TYPE_SMPTE_ALPHA \
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(gst_smpte_alpha_get_type())
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#define GST_SMPTE_ALPHA(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SMPTE_ALPHA,GstSMPTEAlpha))
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#define GST_SMPTE_ALPHA_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SMPTE_ALPHA,GstSMPTEAlphaClass))
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#define GST_IS_SMPTE_ALPHA(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SMPTE_ALPHA))
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#define GST_IS_SMPTE_ALPHA_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SMPTE_ALPHA))
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typedef struct _GstSMPTEAlpha GstSMPTEAlpha;
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typedef struct _GstSMPTEAlphaClass GstSMPTEAlphaClass;
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struct _GstSMPTEAlpha {
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GstVideoFilter element;
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/* properties */
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gint type;
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gint border;
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gint depth;
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gdouble position;
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/* negotiated format */
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GstVideoFormat format;
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gint width;
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gint height;
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/* state of the effect */
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GstMask *mask;
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};
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struct _GstSMPTEAlphaClass {
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GstVideoFilterClass parent_class;
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};
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gboolean gst_smpte_alpha_plugin_init (GstPlugin * plugin);
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G_END_DECLS
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#endif /* __GST_SMPTE_ALPHA_H__ */
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