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., 51 Franklin St, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 */ 21 22 #ifndef __RSN_INPUT_SELECTOR_H__ 23 #define __RSN_INPUT_SELECTOR_H__ 24 25 #include <gst/gst.h> 26 27 G_BEGIN_DECLS 28 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, RsnInputSelector)) 33 #define GST_INPUT_SELECTOR_CLASS(klass) \ 34 (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_INPUT_SELECTOR, RsnInputSelectorClass)) 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)) 39 40 typedef struct _RsnInputSelector RsnInputSelector; 41 typedef struct _RsnInputSelectorClass RsnInputSelectorClass; 42 43 #define GST_INPUT_SELECTOR_GET_LOCK(sel) (&((RsnInputSelector*)(sel))->lock) 44 #define GST_INPUT_SELECTOR_GET_COND(sel) (&((RsnInputSelector*)(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))) 50 51 /** 52 * RsnInputSelectorSyncMode: 53 * @GST_INPUT_SELECTOR_SYNC_MODE_ACTIVE_SEGMENT: Sync using the current active segment. 54 * @GST_INPUT_SELECTOR_SYNC_MODE_CLOCK: Sync using the clock. 55 * 56 * The different ways that input-selector can behave when in sync-streams mode. 57 */ 58 typedef enum { 59 GST_INPUT_SELECTOR_SYNC_MODE_ACTIVE_SEGMENT, 60 GST_INPUT_SELECTOR_SYNC_MODE_CLOCK 61 } RsnInputSelectorSyncMode; 62 63 struct _RsnInputSelector { 64 GstElement element; 65 66 GstPad *srcpad; 67 68 GstPad *active_sinkpad; 69 guint n_pads; 70 guint padcount; 71 gboolean sync_streams; 72 RsnInputSelectorSyncMode sync_mode; 73 gboolean cache_buffers; 74 75 GMutex lock; 76 GCond cond; 77 gboolean blocked; 78 gboolean flushing; 79 }; 80 81 struct _RsnInputSelectorClass { 82 GstElementClass parent_class; 83 84 gint64 (*block) (RsnInputSelector *self); 85 }; 86 87 G_GNUC_INTERNAL GType gst_input_selector_get_type (void); 88 89 G_END_DECLS 90 91 #endif /* __GST_INPUT_SELECTOR_H__ */ 92