/* GStreamer * Copyright (C) 2001 Wim Taymans <wim.taymans@gmail.com> * 2004-2008 Edward Hervey <bilboed@bilboed.com> * * nleobject.h: Header for base NleObject * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ #ifndef __NLE_OBJECT_H__ #define __NLE_OBJECT_H__ #include <gst/gst.h> #include "nletypes.h" G_BEGIN_DECLS #define NLE_TYPE_OBJECT \ (nle_object_get_type()) #define NLE_OBJECT(obj) \ (G_TYPE_CHECK_INSTANCE_CAST((obj),NLE_TYPE_OBJECT,NleObject)) #define NLE_OBJECT_CAST(obj) ((NleObject*) (obj)) #define NLE_OBJECT_CLASS(klass) \ (G_TYPE_CHECK_CLASS_CAST((klass),NLE_TYPE_OBJECT,NleObjectClass)) #define NLE_OBJECT_GET_CLASS(obj) \ (G_TYPE_INSTANCE_GET_CLASS ((obj), NLE_TYPE_OBJECT, NleObjectClass)) #define NLE_IS_OBJECT(obj) \ (G_TYPE_CHECK_INSTANCE_TYPE((obj),NLE_TYPE_OBJECT)) #define NLE_IS_OBJECT_CLASS(obj) \ (G_TYPE_CHECK_CLASS_TYPE((klass),NLE_TYPE_OBJECT)) #define NLE_OBJECT_SRC(obj) (((NleObject *) obj)->srcpad) /** * NleObjectFlags: * @NLE_OBJECT_IS_SOURCE: * @NLE_OBJECT_IS_OPERATION: * @NLE_OBJECT_IS_EXPANDABLE: The #NleObject start/stop will extend accross the full composition. * @NLE_OBJECT_LAST_FLAG: */ typedef enum { NLE_OBJECT_SOURCE = (GST_BIN_FLAG_LAST << 0), NLE_OBJECT_OPERATION = (GST_BIN_FLAG_LAST << 1), NLE_OBJECT_EXPANDABLE = (GST_BIN_FLAG_LAST << 2), NLE_OBJECT_COMPOSITION = (GST_BIN_FLAG_LAST << 3), /* padding */ NLE_OBJECT_LAST_FLAG = (GST_BIN_FLAG_LAST << 5) } NleObjectFlags; #define NLE_OBJECT_IS_SOURCE(obj) \ (GST_OBJECT_FLAG_IS_SET(obj, NLE_OBJECT_SOURCE)) #define NLE_OBJECT_IS_OPERATION(obj) \ (GST_OBJECT_FLAG_IS_SET(obj, NLE_OBJECT_OPERATION)) #define NLE_OBJECT_IS_EXPANDABLE(obj) \ (GST_OBJECT_FLAG_IS_SET(obj, NLE_OBJECT_EXPANDABLE)) #define NLE_OBJECT_IS_COMPOSITION(obj) \ (GST_OBJECT_FLAG_IS_SET(obj, NLE_OBJECT_COMPOSITION)) /* For internal usage only */ #define NLE_OBJECT_START(obj) (NLE_OBJECT_CAST (obj)->start) #define NLE_OBJECT_STOP(obj) (NLE_OBJECT_CAST (obj)->stop) #define NLE_OBJECT_DURATION(obj) (NLE_OBJECT_CAST (obj)->duration) #define NLE_OBJECT_INPOINT(obj) (NLE_OBJECT_CAST (obj)->inpoint) #define NLE_OBJECT_PRIORITY(obj) (NLE_OBJECT_CAST (obj)->priority) #define NLE_OBJECT_ACTIVE(obj) (NLE_OBJECT_DURATION(obj) > 0 && NLE_OBJECT_CAST (obj)->active) #define NLE_OBJECT_IS_COMMITING(obj) (NLE_OBJECT_CAST (obj)->commiting) struct _NleObject { GstBin parent; GstPad *srcpad; /* Time positionning */ GstClockTime start; GstClockTime inpoint; GstClockTimeDiff duration; /* Pending time positionning * Should be == GST_CLOCK_TIME_NONE when nothing to do */ GstClockTime pending_start; GstClockTime pending_inpoint; GstClockTimeDiff pending_duration; guint32 pending_priority; gboolean pending_active; gboolean commit_needed; gboolean commiting; /* Set to TRUE during the commiting time only */ gboolean expandable; /* read-only */ GstClockTime stop; /* priority in parent */ guint32 priority; /* active in parent */ gboolean active; /* Filtering caps */ GstCaps *caps; /* current segment seek <RO> */ gdouble segment_rate; GstSeekFlags segment_flags; gint64 segment_start; gint64 segment_stop; gboolean in_composition; }; struct _NleObjectClass { GstBinClass parent_class; /* Signal method handler */ gboolean (*commit_signal_handler) (NleObject * object, gboolean recurse); /* virtual methods for subclasses */ gboolean (*prepare) (NleObject * object); gboolean (*cleanup) (NleObject * object); gboolean (*commit) (NleObject * object, gboolean recurse); }; GType nle_object_get_type (void)G_GNUC_INTERNAL; gboolean nle_object_to_media_time (NleObject * object, GstClockTime otime, GstClockTime * mtime) G_GNUC_INTERNAL; gboolean nle_media_to_object_time (NleObject * object, GstClockTime mtime, GstClockTime * otime) G_GNUC_INTERNAL; void nle_object_set_caps (NleObject * object, const GstCaps * caps) G_GNUC_INTERNAL; void nle_object_set_commit_needed (NleObject *object) G_GNUC_INTERNAL; gboolean nle_object_commit (NleObject *object, gboolean recurse) G_GNUC_INTERNAL; void nle_object_reset (NleObject *object) G_GNUC_INTERNAL; GstStateChangeReturn nle_object_cleanup (NleObject * object) G_GNUC_INTERNAL; void nle_object_seek_all_children (NleObject *object, GstEvent *seek_event) G_GNUC_INTERNAL; G_END_DECLS #endif /* __NLE_OBJECT_H__ */