1 /* GStreamer
2 * Copyright (C) 2003 Julien Moutte <julien@moutte.net>
3 * Copyright (C) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
4 * Copyright (C) 2008 Nokia Corporation. (contact <stefan.kost@nokia.com>)
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
20 */
22 #ifndef __GST_INPUT_SELECTOR_H__
23 #define __GST_INPUT_SELECTOR_H__
25 #include <gst/gst.h>
27 G_BEGIN_DECLS
29 #define GST_TYPE_INPUT_SELECTOR \
30 (gst_input_selector_get_type())
31 #define GST_INPUT_SELECTOR(obj) \
32 (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_INPUT_SELECTOR, GstInputSelector))
33 #define GST_INPUT_SELECTOR_CLASS(klass) \
34 (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_INPUT_SELECTOR, GstInputSelectorClass))
35 #define GST_IS_INPUT_SELECTOR(obj) \
36 (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_INPUT_SELECTOR))
37 #define GST_IS_INPUT_SELECTOR_CLASS(klass) \
38 (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_INPUT_SELECTOR))
40 typedef struct _GstInputSelector GstInputSelector;
41 typedef struct _GstInputSelectorClass GstInputSelectorClass;
43 #define GST_INPUT_SELECTOR_GET_LOCK(sel) (((GstInputSelector*)(sel))->lock)
44 #define GST_INPUT_SELECTOR_GET_COND(sel) (((GstInputSelector*)(sel))->cond)
45 #define GST_INPUT_SELECTOR_LOCK(sel) (g_mutex_lock (GST_INPUT_SELECTOR_GET_LOCK(sel)))
46 #define GST_INPUT_SELECTOR_UNLOCK(sel) (g_mutex_unlock (GST_INPUT_SELECTOR_GET_LOCK(sel)))
47 #define GST_INPUT_SELECTOR_WAIT(sel) (g_cond_wait (GST_INPUT_SELECTOR_GET_COND(sel), \
48 GST_INPUT_SELECTOR_GET_LOCK(sel)))
49 #define GST_INPUT_SELECTOR_BROADCAST(sel) (g_cond_broadcast (GST_INPUT_SELECTOR_GET_COND(sel)))
51 struct _GstInputSelector {
52 GstElement element;
54 GstPad *srcpad;
56 GstPad *active_sinkpad;
57 guint n_pads;
58 guint padcount;
59 gboolean sync_streams;
61 GstSegment segment; /* the output segment */
62 gboolean pending_close; /* if we should push a close first */
64 GMutex *lock;
65 GCond *cond;
66 gboolean blocked;
67 gboolean flushing;
68 };
70 struct _GstInputSelectorClass {
71 GstElementClass parent_class;
73 gint64 (*block) (GstInputSelector *self);
74 void (*switch_) (GstInputSelector *self, GstPad *pad,
75 gint64 stop_time, gint64 start_time);
76 };
78 GType gst_input_selector_get_type (void);
80 G_END_DECLS
82 #endif /* __GST_INPUT_SELECTOR_H__ */