mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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4cb834fa21
Starting from now we will not claim that we support GnlObject that have several source pads as this is 1- Not true at all; 2- the design of priorities in the GnlComposition tree does not allow that; 3- Not very useful in most of the cases and it complexifies quite a lot the code in the composition. Conflicts: configure.ac tests/check/Makefile.am
164 lines
4.6 KiB
C
164 lines
4.6 KiB
C
/* GStreamer
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* Copyright (C) 2001 Wim Taymans <wim.taymans@gmail.com>
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* 2004-2008 Edward Hervey <bilboed@bilboed.com>
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*
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* gnlobject.h: Header for base GnlObject
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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 __GNL_OBJECT_H__
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#define __GNL_OBJECT_H__
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#include <gst/gst.h>
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#include "gnltypes.h"
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G_BEGIN_DECLS
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#define GNL_TYPE_OBJECT \
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(gnl_object_get_type())
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#define GNL_OBJECT(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GNL_TYPE_OBJECT,GnlObject))
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#define GNL_OBJECT_CAST(obj) ((GnlObject*) (obj))
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#define GNL_OBJECT_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GNL_TYPE_OBJECT,GnlObjectClass))
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#define GNL_OBJECT_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj), GNL_TYPE_OBJECT, GnlObjectClass))
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#define GNL_IS_OBJECT(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GNL_TYPE_OBJECT))
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#define GNL_IS_OBJECT_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GNL_TYPE_OBJECT))
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#define GNL_OBJECT_SRC(obj) (((GnlObject *) obj)->srcpad)
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/**
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* GnlObjectFlags:
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* @GNL_OBJECT_IS_SOURCE:
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* @GNL_OBJECT_IS_OPERATION:
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* @GNL_OBJECT_IS_EXPANDABLE: The #GnlObject start/stop will extend accross the full composition.
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* @GNL_OBJECT_LAST_FLAG:
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*/
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typedef enum
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{
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GNL_OBJECT_SOURCE = (GST_BIN_FLAG_LAST << 0),
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GNL_OBJECT_OPERATION = (GST_BIN_FLAG_LAST << 1),
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GNL_OBJECT_EXPANDABLE = (GST_BIN_FLAG_LAST << 2),
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GNL_OBJECT_COMPOSITION = (GST_BIN_FLAG_LAST << 3),
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/* padding */
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GNL_OBJECT_LAST_FLAG = (GST_BIN_FLAG_LAST << 5)
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} GnlObjectFlags;
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#define GNL_OBJECT_IS_SOURCE(obj) \
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(GST_OBJECT_FLAG_IS_SET(obj, GNL_OBJECT_SOURCE))
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#define GNL_OBJECT_IS_OPERATION(obj) \
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(GST_OBJECT_FLAG_IS_SET(obj, GNL_OBJECT_OPERATION))
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#define GNL_OBJECT_IS_EXPANDABLE(obj) \
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(GST_OBJECT_FLAG_IS_SET(obj, GNL_OBJECT_EXPANDABLE))
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#define GNL_OBJECT_IS_COMPOSITION(obj) \
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(GST_OBJECT_FLAG_IS_SET(obj, GNL_OBJECT_COMPOSITION))
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/* For internal usage only */
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#define GNL_OBJECT_START(obj) (GNL_OBJECT_CAST (obj)->start)
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#define GNL_OBJECT_STOP(obj) (GNL_OBJECT_CAST (obj)->stop)
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#define GNL_OBJECT_DURATION(obj) (GNL_OBJECT_CAST (obj)->duration)
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#define GNL_OBJECT_INPOINT(obj) (GNL_OBJECT_CAST (obj)->inpoint)
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#define GNL_OBJECT_PRIORITY(obj) (GNL_OBJECT_CAST (obj)->priority)
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#define GNL_OBJECT_IS_COMMITING(obj) (GNL_OBJECT_CAST (obj)->commiting)
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struct _GnlObject
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{
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GstBin parent;
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GstPad *srcpad;
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/* Time positionning */
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GstClockTime start;
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GstClockTime inpoint;
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GstClockTimeDiff duration;
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/* Pending time positionning
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* Should be == GST_CLOCK_TIME_NONE when nothing to do
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*/
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GstClockTime pending_start;
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GstClockTime pending_inpoint;
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GstClockTimeDiff pending_duration;
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guint32 pending_priority;
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gboolean pending_active;
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gboolean commit_needed;
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gboolean commiting; /* Set to TRUE during the commiting time only */
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gboolean expandable;
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/* read-only */
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GstClockTime stop;
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/* priority in parent */
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guint32 priority;
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/* active in parent */
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gboolean active;
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/* Filtering caps */
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GstCaps *caps;
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/* current segment seek <RO> */
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gdouble segment_rate;
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GstSeekFlags segment_flags;
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gint64 segment_start;
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gint64 segment_stop;
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};
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struct _GnlObjectClass
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{
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GstBinClass parent_class;
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/* Signal method handler */
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gboolean (*commit_signal_handler) (GnlObject * object, gboolean recurse);
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/* virtual methods for subclasses */
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gboolean (*prepare) (GnlObject * object);
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gboolean (*cleanup) (GnlObject * object);
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gboolean (*commit) (GnlObject * object, gboolean recurse);
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};
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GType gnl_object_get_type (void);
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gboolean
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gnl_object_to_media_time (GnlObject * object, GstClockTime otime,
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GstClockTime * mtime);
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gboolean
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gnl_media_to_object_time (GnlObject * object, GstClockTime mtime,
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GstClockTime * otime);
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void
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gnl_object_set_caps (GnlObject * object, const GstCaps * caps);
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void
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gnl_object_set_commit_needed (GnlObject *object);
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gboolean
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gnl_object_commit (GnlObject *object, gboolean recurse);
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void
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gnl_object_reset (GnlObject *object);
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G_END_DECLS
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#endif /* __GNL_OBJECT_H__ */
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