author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 17 Dec 2009 08:53:32 +0200 | |
changeset 0 | 0e761a78d257 |
child 7 | 567bb019e3e3 |
permissions | -rw-r--r-- |
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/* GStreamer |
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu> |
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* 2004 Wim Taymans <wim@fluendo.com> |
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* |
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* gstsystemclock.c: Default clock, uses the system clock |
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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., 59 Temple Place - Suite 330, |
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* Boston, MA 02111-1307, USA. |
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*/ |
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|
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/** |
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* SECTION:gstsystemclock |
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* @short_description: Default clock that uses the current system time |
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* @see_also: #GstClock |
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* |
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* The GStreamer core provides a GstSystemClock based on the system time. |
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* Asynchronous callbacks are scheduled from an internal thread. |
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* |
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* Clock implementors are encouraged to subclass this systemclock as it |
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* implements the async notification. |
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* |
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* Subclasses can however override all of the important methods for sync and |
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* async notifications to implement their own callback methods or blocking |
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* wait operations. |
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* |
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* Last reviewed on 2006-03-08 (0.10.4) |
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*/ |
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#include "gst_private.h" |
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#include "gstinfo.h" |
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#include "gstsystemclock.h" |
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#ifdef __SYMBIAN32__ |
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#include <glib_global.h> |
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#endif |
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/* Define this to get some extra debug about jitter from each clock_wait */ |
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#undef WAIT_DEBUGGING |
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/* the one instance of the systemclock */ |
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static GstClock *_the_system_clock = NULL; |
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static void gst_system_clock_class_init (GstSystemClockClass * klass); |
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static void gst_system_clock_init (GstSystemClock * clock); |
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static void gst_system_clock_dispose (GObject * object); |
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static GstClockTime gst_system_clock_get_internal_time (GstClock * clock); |
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static guint64 gst_system_clock_get_resolution (GstClock * clock); |
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static GstClockReturn gst_system_clock_id_wait_jitter (GstClock * clock, |
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GstClockEntry * entry, GstClockTimeDiff * jitter); |
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static GstClockReturn gst_system_clock_id_wait_jitter_unlocked |
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(GstClock * clock, GstClockEntry * entry, GstClockTimeDiff * jitter, |
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gboolean restart); |
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static GstClockReturn gst_system_clock_id_wait_async (GstClock * clock, |
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GstClockEntry * entry); |
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static void gst_system_clock_id_unschedule (GstClock * clock, |
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GstClockEntry * entry); |
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static void gst_system_clock_async_thread (GstClock * clock); |
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static gboolean gst_system_clock_start_async (GstSystemClock * clock); |
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static GStaticMutex _gst_sysclock_mutex = G_STATIC_MUTEX_INIT; |
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static GstClockClass *parent_class = NULL; |
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/* static guint gst_system_clock_signals[LAST_SIGNAL] = { 0 }; */ |
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#ifdef __SYMBIAN32__ |
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EXPORT_C |
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#endif |
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GType |
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gst_system_clock_get_type (void) |
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{ |
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static GType clock_type = 0; |
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if (G_UNLIKELY (clock_type == 0)) { |
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static const GTypeInfo clock_info = { |
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sizeof (GstSystemClockClass), |
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NULL, |
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NULL, |
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(GClassInitFunc) gst_system_clock_class_init, |
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NULL, |
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NULL, |
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sizeof (GstSystemClock), |
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0, |
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(GInstanceInitFunc) gst_system_clock_init, |
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NULL |
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}; |
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103 |
clock_type = g_type_register_static (GST_TYPE_CLOCK, "GstSystemClock", |
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104 |
&clock_info, 0); |
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105 |
} |
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106 |
return clock_type; |
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107 |
} |
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108 |
|
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109 |
static void |
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110 |
gst_system_clock_class_init (GstSystemClockClass * klass) |
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111 |
{ |
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112 |
GObjectClass *gobject_class; |
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113 |
GstObjectClass *gstobject_class; |
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114 |
GstClockClass *gstclock_class; |
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115 |
|
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gobject_class = (GObjectClass *) klass; |
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gstobject_class = (GstObjectClass *) klass; |
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gstclock_class = (GstClockClass *) klass; |
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119 |
|
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parent_class = g_type_class_peek_parent (klass); |
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121 |
|
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gobject_class->dispose = gst_system_clock_dispose; |
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123 |
|
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gstclock_class->get_internal_time = gst_system_clock_get_internal_time; |
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gstclock_class->get_resolution = gst_system_clock_get_resolution; |
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gstclock_class->wait_jitter = gst_system_clock_id_wait_jitter; |
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gstclock_class->wait_async = gst_system_clock_id_wait_async; |
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gstclock_class->unschedule = gst_system_clock_id_unschedule; |
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129 |
} |
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130 |
|
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131 |
static void |
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132 |
gst_system_clock_init (GstSystemClock * clock) |
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133 |
{ |
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GST_OBJECT_FLAG_SET (clock, |
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GST_CLOCK_FLAG_CAN_DO_SINGLE_SYNC | |
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GST_CLOCK_FLAG_CAN_DO_SINGLE_ASYNC | |
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GST_CLOCK_FLAG_CAN_DO_PERIODIC_SYNC | |
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138 |
GST_CLOCK_FLAG_CAN_DO_PERIODIC_ASYNC); |
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139 |
|
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140 |
#if 0 |
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141 |
/* Uncomment this to start the async clock thread straight away */ |
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GST_CLOCK_LOCK (clock); |
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gst_system_clock_start_async (clock); |
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GST_CLOCK_UNLOCK (clock); |
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145 |
#endif |
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146 |
} |
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147 |
|
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148 |
static void |
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gst_system_clock_dispose (GObject * object) |
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150 |
{ |
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GstClock *clock = (GstClock *) object; |
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152 |
|
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GstSystemClock *sysclock = GST_SYSTEM_CLOCK (clock); |
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154 |
GList *entries; |
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155 |
|
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/* else we have to stop the thread */ |
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157 |
GST_OBJECT_LOCK (clock); |
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sysclock->stopping = TRUE; |
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/* unschedule all entries */ |
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for (entries = clock->entries; entries; entries = g_list_next (entries)) { |
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GstClockEntry *entry = (GstClockEntry *) entries->data; |
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162 |
|
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GST_CAT_DEBUG (GST_CAT_CLOCK, "unscheduling entry %p", entry); |
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entry->status = GST_CLOCK_UNSCHEDULED; |
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165 |
} |
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166 |
g_list_free (clock->entries); |
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clock->entries = NULL; |
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GST_CLOCK_BROADCAST (clock); |
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169 |
GST_OBJECT_UNLOCK (clock); |
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170 |
|
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if (sysclock->thread) |
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172 |
g_thread_join (sysclock->thread); |
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sysclock->thread = NULL; |
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174 |
GST_CAT_DEBUG (GST_CAT_CLOCK, "joined thread"); |
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175 |
|
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176 |
G_OBJECT_CLASS (parent_class)->dispose (object); |
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177 |
|
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178 |
if (_the_system_clock == clock) { |
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_the_system_clock = NULL; |
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GST_CAT_DEBUG (GST_CAT_CLOCK, "disposed system clock"); |
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181 |
} |
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182 |
} |
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183 |
|
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184 |
/** |
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185 |
* gst_system_clock_obtain: |
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186 |
* |
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187 |
* Get a handle to the default system clock. The refcount of the |
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188 |
* clock will be increased so you need to unref the clock after |
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189 |
* usage. |
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190 |
* |
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191 |
* Returns: the default clock. |
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192 |
* |
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193 |
* MT safe. |
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194 |
*/ |
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195 |
#ifdef __SYMBIAN32__ |
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196 |
EXPORT_C |
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197 |
#endif |
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198 |
|
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199 |
GstClock * |
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200 |
gst_system_clock_obtain (void) |
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201 |
{ |
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202 |
GstClock *clock; |
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203 |
|
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204 |
g_static_mutex_lock (&_gst_sysclock_mutex); |
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205 |
clock = _the_system_clock; |
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206 |
|
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|
207 |
if (clock == NULL) { |
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diff
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|
208 |
GST_CAT_DEBUG (GST_CAT_CLOCK, "creating new static system clock"); |
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|
209 |
clock = g_object_new (GST_TYPE_SYSTEM_CLOCK, |
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|
210 |
"name", "GstSystemClock", NULL); |
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|
211 |
|
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diff
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|
212 |
/* we created the global clock; take ownership so |
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diff
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|
213 |
* we can hand out instances later */ |
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|
214 |
gst_object_ref (clock); |
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|
215 |
gst_object_sink (GST_OBJECT (clock)); |
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|
216 |
|
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|
217 |
_the_system_clock = clock; |
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|
218 |
g_static_mutex_unlock (&_gst_sysclock_mutex); |
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|
219 |
} else { |
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|
220 |
g_static_mutex_unlock (&_gst_sysclock_mutex); |
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|
221 |
GST_CAT_DEBUG (GST_CAT_CLOCK, "returning static system clock"); |
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|
222 |
} |
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|
223 |
|
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|
224 |
/* we ref it since we are a clock factory. */ |
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|
225 |
gst_object_ref (clock); |
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|
226 |
return clock; |
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|
227 |
} |
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|
228 |
|
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|
229 |
/* this thread reads the sorted clock entries from the queue. |
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|
230 |
* |
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|
231 |
* It waits on each of them and fires the callback when the timeout occurs. |
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|
232 |
* |
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|
233 |
* When an entry in the queue was canceled before we wait for it, it is |
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|
234 |
* simply skipped. |
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|
235 |
* |
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|
236 |
* When waiting for an entry, it can become canceled, in that case we don't |
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diff
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|
237 |
* call the callback but move to the next item in the queue. |
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|
238 |
* |
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|
239 |
* MT safe. |
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|
240 |
*/ |
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|
241 |
static void |
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diff
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|
242 |
gst_system_clock_async_thread (GstClock * clock) |
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|
243 |
{ |
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|
244 |
GstSystemClock *sysclock = GST_SYSTEM_CLOCK (clock); |
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|
245 |
|
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|
246 |
GST_CAT_DEBUG (GST_CAT_CLOCK, "enter system clock thread"); |
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|
247 |
GST_OBJECT_LOCK (clock); |
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|
248 |
/* signal spinup */ |
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|
249 |
GST_CLOCK_BROADCAST (clock); |
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|
250 |
/* now enter our (almost) infinite loop */ |
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diff
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|
251 |
while (!sysclock->stopping) { |
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|
252 |
GstClockEntry *entry; |
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|
253 |
GstClockTime requested; |
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|
254 |
GstClockReturn res; |
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diff
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|
255 |
|
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diff
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|
256 |
/* check if something to be done */ |
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diff
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|
257 |
while (clock->entries == NULL) { |
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parents:
diff
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|
258 |
GST_CAT_DEBUG (GST_CAT_CLOCK, "no clock entries, waiting.."); |
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diff
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|
259 |
/* wait for work to do */ |
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diff
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|
260 |
GST_CLOCK_WAIT (clock); |
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Revision: 200949
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parents:
diff
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|
261 |
GST_CAT_DEBUG (GST_CAT_CLOCK, "got signal"); |
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diff
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|
262 |
/* clock was stopping, exit */ |
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diff
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|
263 |
if (sysclock->stopping) |
0e761a78d257
Revision: 200949
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diff
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|
264 |
goto exit; |
0e761a78d257
Revision: 200949
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parents:
diff
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|
265 |
} |
0e761a78d257
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parents:
diff
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|
266 |
|
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Revision: 200949
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parents:
diff
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|
267 |
/* pick the next entry */ |
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parents:
diff
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|
268 |
entry = clock->entries->data; |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
269 |
/* if it was unscheduled, just move on to the next entry */ |
0e761a78d257
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parents:
diff
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|
270 |
if (entry->status == GST_CLOCK_UNSCHEDULED) { |
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Revision: 200949
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parents:
diff
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|
271 |
GST_CAT_DEBUG (GST_CAT_CLOCK, "entry %p was unscheduled", entry); |
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diff
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|
272 |
goto next_entry; |
0e761a78d257
Revision: 200949
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parents:
diff
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|
273 |
} |
0e761a78d257
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parents:
diff
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|
274 |
|
0e761a78d257
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parents:
diff
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|
275 |
requested = entry->time; |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
276 |
|
0e761a78d257
Revision: 200949
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parents:
diff
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|
277 |
/* now wait for the entry, we already hold the lock */ |
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parents:
diff
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|
278 |
res = |
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Revision: 200949
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parents:
diff
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|
279 |
gst_system_clock_id_wait_jitter_unlocked (clock, (GstClockID) entry, |
0e761a78d257
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parents:
diff
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|
280 |
NULL, FALSE); |
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parents:
diff
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|
281 |
|
0e761a78d257
Revision: 200949
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parents:
diff
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|
282 |
switch (res) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
283 |
case GST_CLOCK_UNSCHEDULED: |
0e761a78d257
Revision: 200949
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parents:
diff
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|
284 |
/* entry was unscheduled, move to the next */ |
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parents:
diff
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|
285 |
GST_CAT_DEBUG (GST_CAT_CLOCK, "async entry %p unscheduled", entry); |
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Revision: 200949
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parents:
diff
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|
286 |
goto next_entry; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
287 |
case GST_CLOCK_OK: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
288 |
case GST_CLOCK_EARLY: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
289 |
{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
290 |
/* entry timed out normally, fire the callback and move to the next |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
291 |
* entry */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
292 |
GST_CAT_DEBUG (GST_CAT_CLOCK, "async entry %p unlocked", entry); |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
293 |
if (entry->func) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
294 |
/* unlock before firing the callback */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
295 |
GST_OBJECT_UNLOCK (clock); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
296 |
entry->func (clock, entry->time, (GstClockID) entry, |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
297 |
entry->user_data); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
298 |
GST_OBJECT_LOCK (clock); |
0e761a78d257
Revision: 200949
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parents:
diff
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|
299 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
300 |
if (entry->type == GST_CLOCK_ENTRY_PERIODIC) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
301 |
/* adjust time now */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
302 |
entry->time = requested + entry->interval; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
303 |
/* and resort the list now */ |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
304 |
clock->entries = |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
305 |
g_list_sort (clock->entries, gst_clock_id_compare_func); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
306 |
/* and restart */ |
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Revision: 200949
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parents:
diff
changeset
|
307 |
continue; |
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Revision: 200949
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parents:
diff
changeset
|
308 |
} else { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
309 |
goto next_entry; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
310 |
} |
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|
311 |
} |
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|
312 |
case GST_CLOCK_BUSY: |
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|
313 |
/* somebody unlocked the entry but is was not canceled, This means that |
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|
314 |
* either a new entry was added in front of the queue or some other entry |
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parents:
diff
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|
315 |
* was canceled. Whatever it is, pick the head entry of the list and |
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|
316 |
* continue waiting. */ |
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|
317 |
GST_CAT_DEBUG (GST_CAT_CLOCK, "async entry %p needs restart", entry); |
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|
318 |
continue; |
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|
319 |
default: |
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|
320 |
GST_CAT_DEBUG (GST_CAT_CLOCK, |
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|
321 |
"strange result %d waiting for %p, skipping", res, entry); |
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|
322 |
g_warning ("%s: strange result %d waiting for %p, skipping", |
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|
323 |
GST_OBJECT_NAME (clock), res, entry); |
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|
324 |
goto next_entry; |
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|
325 |
} |
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|
326 |
next_entry: |
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|
327 |
/* we remove the current entry and unref it */ |
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|
328 |
clock->entries = g_list_remove (clock->entries, entry); |
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|
329 |
gst_clock_id_unref ((GstClockID) entry); |
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|
330 |
} |
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|
331 |
exit: |
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|
332 |
/* signal exit */ |
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|
333 |
GST_CLOCK_BROADCAST (clock); |
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|
334 |
GST_OBJECT_UNLOCK (clock); |
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|
335 |
GST_CAT_DEBUG (GST_CAT_CLOCK, "exit system clock thread"); |
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|
336 |
} |
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|
337 |
|
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|
338 |
/* MT safe */ |
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|
339 |
static GstClockTime |
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|
340 |
gst_system_clock_get_internal_time (GstClock * clock) |
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|
341 |
{ |
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|
342 |
GTimeVal timeval; |
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|
343 |
|
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|
344 |
g_get_current_time (&timeval); |
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|
345 |
|
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|
346 |
return GST_TIMEVAL_TO_TIME (timeval); |
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|
347 |
} |
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|
348 |
|
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|
349 |
static guint64 |
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|
350 |
gst_system_clock_get_resolution (GstClock * clock) |
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|
351 |
{ |
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|
352 |
return 1 * GST_USECOND; |
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diff
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|
353 |
} |
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diff
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|
354 |
|
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parents:
diff
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|
355 |
/* synchronously wait on the given GstClockEntry. |
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|
356 |
* |
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diff
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|
357 |
* We do this by blocking on the global clock GCond variable with |
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parents:
diff
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|
358 |
* the requested time as a timeout. This allows us to unblock the |
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parents:
diff
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|
359 |
* entry by signaling the GCond variable. |
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diff
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|
360 |
* |
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parents:
diff
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|
361 |
* Note that signaling the global GCond unlocks all waiting entries. So |
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Revision: 200949
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parents:
diff
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|
362 |
* we need to check if an unlocked entry has changed when it unlocks. |
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diff
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|
363 |
* |
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diff
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|
364 |
* Entries that arrive too late are simply not waited on and a |
0e761a78d257
Revision: 200949
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parents:
diff
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|
365 |
* GST_CLOCK_EARLY result is returned. |
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parents:
diff
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|
366 |
* |
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parents:
diff
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|
367 |
* should be called with LOCK held. |
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parents:
diff
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|
368 |
* |
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parents:
diff
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|
369 |
* MT safe. |
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parents:
diff
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|
370 |
*/ |
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parents:
diff
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|
371 |
static GstClockReturn |
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parents:
diff
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|
372 |
gst_system_clock_id_wait_jitter_unlocked (GstClock * clock, |
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parents:
diff
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|
373 |
GstClockEntry * entry, GstClockTimeDiff * jitter, gboolean restart) |
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parents:
diff
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|
374 |
{ |
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Revision: 200949
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parents:
diff
changeset
|
375 |
GstClockTime entryt, real, now, target; |
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Revision: 200949
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parents:
diff
changeset
|
376 |
GstClockTimeDiff diff; |
0e761a78d257
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parents:
diff
changeset
|
377 |
|
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Revision: 200949
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parents:
diff
changeset
|
378 |
/* need to call the overridden method because we want to sync against the time |
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parents:
diff
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|
379 |
* of the clock, whatever the subclass uses as a clock. */ |
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Revision: 200949
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parents:
diff
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|
380 |
real = GST_CLOCK_GET_CLASS (clock)->get_internal_time (clock); |
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parents:
diff
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|
381 |
entryt = GST_CLOCK_ENTRY_TIME (entry); |
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parents:
diff
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|
382 |
|
0e761a78d257
Revision: 200949
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parents:
diff
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|
383 |
now = gst_clock_adjust_unlocked (clock, real); |
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Revision: 200949
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parents:
diff
changeset
|
384 |
if (jitter) { |
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parents:
diff
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|
385 |
*jitter = GST_CLOCK_DIFF (entryt, now); |
0e761a78d257
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parents:
diff
changeset
|
386 |
} |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
387 |
/* the diff of the entry with the clock is the amount of time we have to |
0e761a78d257
Revision: 200949
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parents:
diff
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|
388 |
* wait */ |
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Revision: 200949
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parents:
diff
changeset
|
389 |
diff = entryt - now; |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
390 |
/* Our GCond implementation expects an absolute time against the system clock |
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Revision: 200949
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parents:
diff
changeset
|
391 |
* as a timeout value. We use our internal time to get the system time and add |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
392 |
* the expected timeout to it, this gives us the absolute time of the |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
393 |
* timeout. */ |
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Revision: 200949
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parents:
diff
changeset
|
394 |
target = gst_system_clock_get_internal_time (clock) + diff; |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
395 |
|
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
396 |
GST_CAT_DEBUG (GST_CAT_CLOCK, "entry %p" |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
397 |
" target %" GST_TIME_FORMAT |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
398 |
" entry %" GST_TIME_FORMAT |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
399 |
" now %" GST_TIME_FORMAT |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
400 |
" real %" GST_TIME_FORMAT |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
401 |
" diff (entry-now) %" G_GINT64_FORMAT, |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
402 |
entry, |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
403 |
GST_TIME_ARGS (target), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
404 |
GST_TIME_ARGS (entryt), GST_TIME_ARGS (now), GST_TIME_ARGS (real), diff); |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
405 |
|
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
406 |
if (diff > 0) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
407 |
GTimeVal tv; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
408 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
409 |
#ifdef WAIT_DEBUGGING |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
410 |
GstClockTime result, final; |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
411 |
#endif |
0e761a78d257
Revision: 200949
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parents:
diff
changeset
|
412 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
413 |
GST_TIME_TO_TIMEVAL (target, tv); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
414 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
415 |
while (TRUE) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
416 |
/* now wait on the entry, it either times out or the cond is signaled. */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
417 |
if (!GST_CLOCK_TIMED_WAIT (clock, &tv)) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
418 |
/* timeout, this is fine, we can report success now */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
419 |
GST_CAT_DEBUG (GST_CAT_CLOCK, "entry %p unlocked after timeout", entry); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
420 |
entry->status = GST_CLOCK_OK; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
421 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
422 |
#ifdef WAIT_DEBUGGING |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
423 |
real = GST_CLOCK_GET_CLASS (clock)->get_internal_time (clock); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
424 |
result = gst_clock_adjust_unlocked (clock, real); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
425 |
final = gst_system_clock_get_internal_time (clock); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
426 |
GST_CAT_DEBUG (GST_CAT_CLOCK, "Waited for %" G_GINT64_FORMAT |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
427 |
" got %" G_GINT64_FORMAT " diff %" G_GINT64_FORMAT |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
428 |
" %g target-offset %" G_GINT64_FORMAT " %g", entryt, result, |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
429 |
result - entryt, |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
430 |
(double) (GstClockTimeDiff) (result - entryt) / GST_SECOND, |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
431 |
(final - target), |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
432 |
((double) (GstClockTimeDiff) (final - target)) / GST_SECOND); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
433 |
#endif |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
434 |
break; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
435 |
} else { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
436 |
/* the waiting is interrupted because the GCond was signaled. This can |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
437 |
* be because this or some other entry was unscheduled. */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
438 |
GST_CAT_DEBUG (GST_CAT_CLOCK, "entry %p unlocked with signal", entry); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
439 |
/* if the entry is unscheduled, we can stop waiting for it, else we |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
440 |
* continue our while loop. */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
441 |
if (entry->status == GST_CLOCK_UNSCHEDULED) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
442 |
break; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
443 |
/* else restart if we must */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
444 |
if (!restart) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
445 |
break; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
446 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
447 |
/* this can happen if the entry got unlocked because of an async entry |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
448 |
* was added to the head of the async queue. */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
449 |
GST_CAT_DEBUG (GST_CAT_CLOCK, "continue waiting for entry %p", entry); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
450 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
451 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
452 |
} else if (diff == 0) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
453 |
entry->status = GST_CLOCK_OK; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
454 |
} else { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
455 |
entry->status = GST_CLOCK_EARLY; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
456 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
457 |
return entry->status; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
458 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
459 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
460 |
static GstClockReturn |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
461 |
gst_system_clock_id_wait_jitter (GstClock * clock, GstClockEntry * entry, |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
462 |
GstClockTimeDiff * jitter) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
463 |
{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
464 |
GstClockReturn ret; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
465 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
466 |
GST_OBJECT_LOCK (clock); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
467 |
ret = gst_system_clock_id_wait_jitter_unlocked (clock, entry, jitter, TRUE); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
468 |
GST_OBJECT_UNLOCK (clock); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
469 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
470 |
return ret; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
471 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
472 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
473 |
/* Start the async clock thread. Must be called with the object lock |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
474 |
* held */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
475 |
static gboolean |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
476 |
gst_system_clock_start_async (GstSystemClock * clock) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
477 |
{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
478 |
GError *error = NULL; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
479 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
480 |
if (clock->thread != NULL) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
481 |
return TRUE; /* Thread already running. Nothing to do */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
482 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
483 |
clock->thread = g_thread_create ((GThreadFunc) gst_system_clock_async_thread, |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
484 |
clock, TRUE, &error); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
485 |
if (error) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
486 |
goto no_thread; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
487 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
488 |
/* wait for it to spin up */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
489 |
GST_CLOCK_WAIT (clock); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
490 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
491 |
return TRUE; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
492 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
493 |
/* ERRORS */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
494 |
no_thread: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
495 |
{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
496 |
g_warning ("could not create async clock thread: %s", error->message); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
497 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
498 |
return FALSE; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
499 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
500 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
501 |
/* Add an entry to the list of pending async waits. The entry is inserted |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
502 |
* in sorted order. If we inserted the entry at the head of the list, we |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
503 |
* need to signal the thread as it might either be waiting on it or waiting |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
504 |
* for a new entry. |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
505 |
* |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
506 |
* MT safe. |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
507 |
*/ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
508 |
static GstClockReturn |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
509 |
gst_system_clock_id_wait_async (GstClock * clock, GstClockEntry * entry) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
510 |
{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
511 |
GST_CAT_DEBUG (GST_CAT_CLOCK, "adding async entry %p", entry); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
512 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
513 |
GST_OBJECT_LOCK (clock); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
514 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
515 |
/* Start the clock async thread if needed */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
516 |
if (!gst_system_clock_start_async (GST_SYSTEM_CLOCK (clock))) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
517 |
goto thread_error; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
518 |
|
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Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
519 |
/* need to take a ref */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
520 |
gst_clock_id_ref ((GstClockID) entry); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
521 |
/* insert the entry in sorted order */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
522 |
clock->entries = g_list_insert_sorted (clock->entries, entry, |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
523 |
gst_clock_id_compare_func); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
524 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
525 |
/* only need to send the signal if the entry was added to the |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
526 |
* front, else the thread is just waiting for another entry and |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
527 |
* will get to this entry automatically. */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
528 |
if (clock->entries->data == entry) { |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
529 |
GST_CAT_DEBUG (GST_CAT_CLOCK, "async entry added to head, sending signal"); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
530 |
/* this will wake up _all_ entries waiting for the clock because we have |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
531 |
* only one cond for all entries (makes allocation faster). Entries that |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
532 |
* have not timed out will have their status set to BUSY and should continue |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
533 |
* to wait. In the case of the async ones, the new head entry should be |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
534 |
* taken and waited for. */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
535 |
GST_CLOCK_BROADCAST (clock); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
536 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
537 |
GST_OBJECT_UNLOCK (clock); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
538 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
539 |
return GST_CLOCK_OK; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
540 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
541 |
thread_error: |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
542 |
/* Could not start the async clock thread */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
543 |
return GST_CLOCK_ERROR; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
544 |
} |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
545 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
546 |
/* unschedule an entry. This will set the state of the entry to GST_CLOCK_UNSCHEDULED |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
547 |
* and will signal any thread waiting for entries to recheck their entry. |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
548 |
* We cannot really decide if the signal is needed or not because the entry |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
549 |
* could be waited on in async or sync mode. |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
550 |
* |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
551 |
* MT safe. |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
552 |
*/ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
553 |
static void |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
554 |
gst_system_clock_id_unschedule (GstClock * clock, GstClockEntry * entry) |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
555 |
{ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
556 |
GST_CAT_DEBUG (GST_CAT_CLOCK, "unscheduling entry %p", entry); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
557 |
|
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
558 |
GST_OBJECT_LOCK (clock); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
559 |
/* mark entry as unscheduled, then wake up all entries. The entries that did |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
560 |
* not timeout will be woken up but immediatly go to sleep again because their |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
561 |
* status would still be busy. */ |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
562 |
entry->status = GST_CLOCK_UNSCHEDULED; |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
563 |
GST_CAT_DEBUG (GST_CAT_CLOCK, "sending signal"); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
564 |
GST_CLOCK_BROADCAST (clock); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
565 |
GST_OBJECT_UNLOCK (clock); |
0e761a78d257
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
566 |
} |