Stephan Sundermann
e653ac87a2
x86 might not work due to misconfiguration because I could not test it since acinerella is broken in x86 currenty. Gstreamer video support is yet to follow. Please report back any bugs you experience. To compile you will need Visual C++, I hope all files are included
134 lines
5.0 KiB
C
134 lines
5.0 KiB
C
/* GStreamer
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*
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* Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>
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* 2011 Stefan Sauer <ensonic@users.sf.net>
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*
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* gsttimedvaluecontrolsource.h: Base class for timeed value based control
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* sources
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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_TIMED_VALUE_CONTROL_SOURCE_H__
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#define __GST_TIMED_VALUE_CONTROL_SOURCE_H__
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#include <glib-object.h>
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#include <gst/gst.h>
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#include <gst/gstcontrolsource.h>
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G_BEGIN_DECLS
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#define GST_TYPE_TIMED_VALUE_CONTROL_SOURCE \
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(gst_timed_value_control_source_get_type ())
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#define GST_TIMED_VALUE_CONTROL_SOURCE(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_TIMED_VALUE_CONTROL_SOURCE, GstTimedValueControlSource))
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#define GST_TIMED_VALUE_CONTROL_SOURCE_CLASS(vtable) \
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(G_TYPE_CHECK_CLASS_CAST ((vtable), GST_TYPE_TIMED_VALUE_CONTROL_SOURCE, GstTimedValueControlSourceClass))
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#define GST_IS_TIMED_VALUE_CONTROL_SOURCE(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_TIMED_VALUE_CONTROL_SOURCE))
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#define GST_IS_TIMED_VALUE_CONTROL_SOURCE_CLASS(vtable) \
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(G_TYPE_CHECK_CLASS_TYPE ((vtable), GST_TYPE_TIMED_VALUE_CONTROL_SOURCE))
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#define GST_TIMED_VALUE_CONTROL_SOURCE_GET_CLASS(inst) \
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(G_TYPE_INSTANCE_GET_CLASS ((inst), GST_TYPE_TIMED_VALUE_CONTROL_SOURCE, GstTimedValueControlSourceClass))
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typedef struct _GstTimedValueControlSource GstTimedValueControlSource;
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typedef struct _GstTimedValueControlSourceClass GstTimedValueControlSourceClass;
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typedef struct _GstTimedValueControlSourcePrivate GstTimedValueControlSourcePrivate;
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typedef struct _GstControlPoint GstControlPoint;
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/**
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* GstControlPoint:
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*
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* a internal structure for value+time and various temporary
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* values used for interpolation. This "inherits" from
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* GstTimedValue.
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*/
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struct _GstControlPoint
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{
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/* fields from GstTimedValue. DO NOT CHANGE! */
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GstClockTime timestamp; /* timestamp of the value change */
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gdouble value; /* the new value */
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/* internal fields */
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/* Caches for the interpolators */
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/* FIXME: we should not have this here already ... */
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union {
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struct {
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gdouble h;
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gdouble z;
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} cubic;
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} cache;
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};
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/**
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* GstTimedValueControlSource:
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*
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* The instance structure of #GstControlSource.
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*/
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struct _GstTimedValueControlSource {
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GstControlSource parent;
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/*< protected >*/
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GMutex lock;
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GSequence *values; /* List of GstControlPoint */
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gint nvalues; /* Number of control points */
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gboolean valid_cache;
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/*< private >*/
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GstTimedValueControlSourcePrivate *priv;
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gpointer _gst_reserved[GST_PADDING];
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};
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struct _GstTimedValueControlSourceClass {
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GstControlSourceClass parent_class;
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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#define GST_TIMED_VALUE_CONTROL_SOURCE_LOCK(o) \
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g_mutex_lock(&((GstTimedValueControlSource *)o)->lock)
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#define GST_TIMED_VALUE_CONTROL_SOURCE_UNLOCK(o) \
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g_mutex_unlock(&((GstTimedValueControlSource *)o)->lock)
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GType gst_timed_value_control_source_get_type (void);
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/* Functions */
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GSequenceIter * gst_timed_value_control_source_find_control_point_iter (
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GstTimedValueControlSource * self,
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GstClockTime timestamp);
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gboolean gst_timed_value_control_source_set (GstTimedValueControlSource * self,
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GstClockTime timestamp,
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const gdouble value);
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gboolean gst_timed_value_control_source_set_from_list (GstTimedValueControlSource * self,
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const GSList * timedvalues);
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gboolean gst_timed_value_control_source_unset (GstTimedValueControlSource * self,
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GstClockTime timestamp);
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void gst_timed_value_control_source_unset_all (GstTimedValueControlSource *self);
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GList * gst_timed_value_control_source_get_all (GstTimedValueControlSource * self);
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gint gst_timed_value_control_source_get_count (GstTimedValueControlSource * self);
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void gst_timed_value_control_invalidate_cache (GstTimedValueControlSource * self);
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G_END_DECLS
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#endif /* __GST_TIMED_VALUE_CONTROL_SOURCE_H__ */
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