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Original commit message from CVS: * gst/videodrop/gstvideodrop.c: (gst_videodrop_init), (gst_videodrop_chain), (gst_videodrop_change_state): * gst/videodrop/gstvideodrop.h: Work based on timestamp of input data, not based on the expected framerate from the input. The consequence is that this element now not only scales framerates, but also functions as a framerate corrector or framerate stabilizer/constantizer.
62 lines
1.8 KiB
C
62 lines
1.8 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_VIDEODROP_H__
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#define __GST_VIDEODROP_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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#define GST_TYPE_VIDEODROP \
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(gst_videodrop_get_type())
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#define GST_VIDEODROP(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEODROP,GstVideodrop))
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#define GST_VIDEODROP_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEODROP,GstVideodrop))
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#define GST_IS_VIDEODROP(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEODROP))
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#define GST_IS_VIDEODROP_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEODROP))
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typedef struct _GstVideodrop GstVideodrop;
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typedef struct _GstVideodropClass GstVideodropClass;
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struct _GstVideodrop {
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GstElement element;
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GstPad *sinkpad, *srcpad;
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/* video state */
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gboolean inited;
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gfloat from_fps,
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to_fps;
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gfloat speed;
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guint64 pass, total, time_adjust;
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};
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struct _GstVideodropClass {
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GstElementClass parent_class;
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};
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GType gst_videodrop_get_type(void);
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G_END_DECLS
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#endif /* __GST_VIDEODROP_H__ */
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