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 __GST_INPUT_SELECTOR_H__ 23 #define __GST_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, 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)) 39 40 typedef struct _GstInputSelector GstInputSelector; 41 typedef struct _GstInputSelectorClass GstInputSelectorClass; 42 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))) 50 51 /** 52 * GstInputSelectorSyncMode: 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 } GstInputSelectorSyncMode; 62 63 struct _GstInputSelector { 64 GstElement element; 65 66 GstPad *srcpad; 67 68 gboolean active_sinkpad_from_user; 69 GstPad* active_sinkpad; 70 guint n_pads; /* number of pads */ 71 guint padcount; /* sequence number for pads */ 72 gboolean sync_streams; 73 GstInputSelectorSyncMode sync_mode; 74 gboolean cache_buffers; 75 76 gboolean have_group_id; 77 78 GMutex lock; 79 GCond cond; 80 gboolean eos; 81 gboolean eos_sent; 82 gboolean flushing; 83 }; 84 85 struct _GstInputSelectorClass { 86 GstElementClass parent_class; 87 }; 88 89 G_GNUC_INTERNAL GType gst_input_selector_get_type (void); 90 91 G_END_DECLS 92 93 #endif /* __GST_INPUT_SELECTOR_H__ */ 94