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124 lines
3.2 KiB
C
124 lines
3.2 KiB
C
/* Generic video mixer plugin
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_VIDEO_MIXER2_H__
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#define __GST_VIDEO_MIXER2_H__
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include "blend.h"
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#include "gstcollectpads2.h"
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G_BEGIN_DECLS
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#define GST_TYPE_VIDEO_MIXER2 (gst_videomixer2_get_type())
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#define GST_VIDEO_MIXER2(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_MIXER2, GstVideoMixer2))
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#define GST_VIDEO_MIXER2_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEO_MIXER2, GstVideoMixer2Class))
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#define GST_IS_VIDEO_MIXER2(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_MIXER2))
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#define GST_IS_VIDEO_MIXER2_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_MIXER2))
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typedef struct _GstVideoMixer2 GstVideoMixer2;
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typedef struct _GstVideoMixer2Class GstVideoMixer2Class;
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/**
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* GstVideoMixer2Background:
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* @VIDEO_MIXER2_BACKGROUND_CHECKER: checker pattern background
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* @VIDEO_MIXER2_BACKGROUND_BLACK: solid color black background
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* @VIDEO_MIXER2_BACKGROUND_WHITE: solid color white background
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*
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* The different backgrounds videomixer can blend over.
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*/
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typedef enum
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{
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VIDEO_MIXER2_BACKGROUND_CHECKER,
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VIDEO_MIXER2_BACKGROUND_BLACK,
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VIDEO_MIXER2_BACKGROUND_WHITE
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}
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GstVideoMixer2Background;
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/**
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* GstVideoMixer2:
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*
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* The opaque #GstVideoMixer2 structure.
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*/
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struct _GstVideoMixer2
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{
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GstElement element;
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/* < private > */
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/* pad */
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GstPad *srcpad;
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/* Lock to prevent the state to change while blending */
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GMutex *lock;
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/* Sink pads using Collect Pads 2*/
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GstCollectPads2 *collect;
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/* sinkpads, a GSList of GstVideoMixer2Pads */
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GSList *sinkpads;
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gint numpads;
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/* Next available sinkpad index */
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gint next_sinkpad;
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/* Output caps */
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GstVideoFormat format;
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gint width, height;
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gint fps_n;
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gint fps_d;
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gint par_n;
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gint par_d;
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gboolean newseg_pending;
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gboolean flush_stop_pending;
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GstVideoMixer2Background background;
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/* Current downstream segment */
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GstSegment segment;
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GstClockTime ts_offset;
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guint64 nframes;
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/* QoS stuff */
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gdouble proportion;
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GstClockTime earliest_time;
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guint64 qos_processed, qos_dropped;
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BlendFunction blend;
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FillCheckerFunction fill_checker;
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FillColorFunction fill_color;
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};
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struct _GstVideoMixer2Class
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{
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GstElementClass parent_class;
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};
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GType gst_videomixer2_get_type (void);
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gboolean gst_videomixer2_register (GstPlugin * plugin);
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G_END_DECLS
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#endif /* __GST_VIDEO_MIXER2_H__ */
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