2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2005 Wim Taymans <wim@fluendo.com>
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
23 * SECTION:element-fakesink
24 * @short_description: black hole for data
25 * @see_also: #GstFakeSrc
27 * Dummy sink that swallows everything.
34 #include "gstfakesink.h"
35 #include <gst/gstmarshal.h>
37 static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
42 GST_DEBUG_CATEGORY_STATIC (gst_fake_sink_debug);
43 #define GST_CAT_DEFAULT gst_fake_sink_debug
45 static const GstElementDetails gst_fake_sink_details =
46 GST_ELEMENT_DETAILS ("Fake Sink",
48 "Black hole for data",
49 "Erik Walthinsen <omega@cse.ogi.edu>, "
50 "Wim Taymans <wim@fluendo.com>, "
51 "Mr. 'frag-me-more' Vanderwingo <wingo@fluendo.com>");
54 /* FakeSink signals and args */
62 #define DEFAULT_SYNC FALSE
64 #define DEFAULT_STATE_ERROR FAKE_SINK_STATE_ERROR_NONE
65 #define DEFAULT_SILENT FALSE
66 #define DEFAULT_DUMP FALSE
67 #define DEFAULT_SIGNAL_HANDOFFS FALSE
68 #define DEFAULT_LAST_MESSAGE NULL
69 #define DEFAULT_CAN_ACTIVATE_PUSH TRUE
70 #define DEFAULT_CAN_ACTIVATE_PULL FALSE
80 PROP_CAN_ACTIVATE_PUSH,
81 PROP_CAN_ACTIVATE_PULL
84 #define GST_TYPE_FAKE_SINK_STATE_ERROR (gst_fake_sink_state_error_get_type())
86 gst_fake_sink_state_error_get_type (void)
88 static GType fakesink_state_error_type = 0;
89 static GEnumValue fakesink_state_error[] = {
90 {FAKE_SINK_STATE_ERROR_NONE, "No state change errors", "none"},
91 {FAKE_SINK_STATE_ERROR_NULL_READY,
92 "Fail state change from NULL to READY", "null-to-ready"},
93 {FAKE_SINK_STATE_ERROR_READY_PAUSED,
94 "Fail state change from READY to PAUSED", "ready-to-paused"},
95 {FAKE_SINK_STATE_ERROR_PAUSED_PLAYING,
96 "Fail state change from PAUSED to PLAYING", "paused-to-playing"},
97 {FAKE_SINK_STATE_ERROR_PLAYING_PAUSED,
98 "Fail state change from PLAYING to PAUSED", "playing-to-paused"},
99 {FAKE_SINK_STATE_ERROR_PAUSED_READY,
100 "Fail state change from PAUSED to READY", "paused-to-ready"},
101 {FAKE_SINK_STATE_ERROR_READY_NULL,
102 "Fail state change from READY to NULL", "ready-to-null"},
106 if (!fakesink_state_error_type) {
107 fakesink_state_error_type =
108 g_enum_register_static ("GstFakeSinkStateError", fakesink_state_error);
110 return fakesink_state_error_type;
113 #define _do_init(bla) \
114 GST_DEBUG_CATEGORY_INIT (gst_fake_sink_debug, "fakesink", 0, "fakesink element");
116 GST_BOILERPLATE_FULL (GstFakeSink, gst_fake_sink, GstBaseSink,
117 GST_TYPE_BASE_SINK, _do_init);
119 static void gst_fake_sink_set_property (GObject * object, guint prop_id,
120 const GValue * value, GParamSpec * pspec);
121 static void gst_fake_sink_get_property (GObject * object, guint prop_id,
122 GValue * value, GParamSpec * pspec);
124 static GstStateChangeReturn gst_fake_sink_change_state (GstElement * element,
125 GstStateChange transition);
127 static GstFlowReturn gst_fake_sink_preroll (GstBaseSink * bsink,
129 static GstFlowReturn gst_fake_sink_render (GstBaseSink * bsink,
131 static gboolean gst_fake_sink_event (GstBaseSink * bsink, GstEvent * event);
133 static guint gst_fake_sink_signals[LAST_SIGNAL] = { 0 };
136 gst_fake_sink_base_init (gpointer g_class)
138 GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
140 gst_element_class_add_pad_template (gstelement_class,
141 gst_static_pad_template_get (&sinktemplate));
142 gst_element_class_set_details (gstelement_class, &gst_fake_sink_details);
146 gst_fake_sink_class_init (GstFakeSinkClass * klass)
148 GObjectClass *gobject_class;
149 GstElementClass *gstelement_class;
150 GstBaseSinkClass *gstbase_sink_class;
152 gobject_class = (GObjectClass *) klass;
153 gstelement_class = (GstElementClass *) klass;
154 gstbase_sink_class = (GstBaseSinkClass *) klass;
156 gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_fake_sink_set_property);
157 gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_fake_sink_get_property);
159 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_STATE_ERROR,
160 g_param_spec_enum ("state_error", "State Error",
161 "Generate a state change error", GST_TYPE_FAKE_SINK_STATE_ERROR,
162 DEFAULT_STATE_ERROR, G_PARAM_READWRITE));
163 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_LAST_MESSAGE,
164 g_param_spec_string ("last_message", "Last Message",
165 "The message describing current status", DEFAULT_LAST_MESSAGE,
167 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SIGNAL_HANDOFFS,
168 g_param_spec_boolean ("signal-handoffs", "Signal handoffs",
169 "Send a signal before unreffing the buffer", DEFAULT_SIGNAL_HANDOFFS,
171 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SILENT,
172 g_param_spec_boolean ("silent", "Silent",
173 "Don't produce last_message events", DEFAULT_SILENT,
175 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_DUMP,
176 g_param_spec_boolean ("dump", "Dump", "Dump received bytes to stdout",
177 DEFAULT_DUMP, G_PARAM_READWRITE));
178 g_object_class_install_property (G_OBJECT_CLASS (klass),
179 PROP_CAN_ACTIVATE_PUSH,
180 g_param_spec_boolean ("can-activate-push", "Can activate push",
181 "Can activate in push mode", DEFAULT_CAN_ACTIVATE_PUSH,
183 g_object_class_install_property (G_OBJECT_CLASS (klass),
184 PROP_CAN_ACTIVATE_PULL,
185 g_param_spec_boolean ("can-activate-pull", "Can activate pull",
186 "Can activate in pull mode", DEFAULT_CAN_ACTIVATE_PULL,
190 * GstFakeSink::handoff:
191 * @fakesink: the fakesink instance
192 * @buffer: the buffer that just has been received
193 * @pad: the pad that received it
195 * This signal gets emitted before unreffing the buffer.
197 gst_fake_sink_signals[SIGNAL_HANDOFF] =
198 g_signal_new ("handoff", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
199 G_STRUCT_OFFSET (GstFakeSinkClass, handoff), NULL, NULL,
200 gst_marshal_VOID__OBJECT_OBJECT, G_TYPE_NONE, 2,
201 GST_TYPE_BUFFER, GST_TYPE_PAD);
203 gstelement_class->change_state =
204 GST_DEBUG_FUNCPTR (gst_fake_sink_change_state);
206 gstbase_sink_class->event = GST_DEBUG_FUNCPTR (gst_fake_sink_event);
207 gstbase_sink_class->preroll = GST_DEBUG_FUNCPTR (gst_fake_sink_preroll);
208 gstbase_sink_class->render = GST_DEBUG_FUNCPTR (gst_fake_sink_render);
212 gst_fake_sink_init (GstFakeSink * fakesink, GstFakeSinkClass * g_class)
214 fakesink->silent = DEFAULT_SILENT;
215 fakesink->dump = DEFAULT_DUMP;
216 GST_BASE_SINK (fakesink)->sync = DEFAULT_SYNC;
217 fakesink->last_message = g_strdup (DEFAULT_LAST_MESSAGE);
218 fakesink->state_error = DEFAULT_STATE_ERROR;
219 fakesink->signal_handoffs = DEFAULT_SIGNAL_HANDOFFS;
223 gst_fake_sink_set_property (GObject * object, guint prop_id,
224 const GValue * value, GParamSpec * pspec)
228 sink = GST_FAKE_SINK (object);
232 sink->silent = g_value_get_boolean (value);
234 case PROP_STATE_ERROR:
235 sink->state_error = g_value_get_enum (value);
238 sink->dump = g_value_get_boolean (value);
240 case PROP_SIGNAL_HANDOFFS:
241 sink->signal_handoffs = g_value_get_boolean (value);
243 case PROP_CAN_ACTIVATE_PUSH:
244 GST_BASE_SINK (sink)->can_activate_push = g_value_get_boolean (value);
246 case PROP_CAN_ACTIVATE_PULL:
247 GST_BASE_SINK (sink)->can_activate_pull = g_value_get_boolean (value);
250 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
256 gst_fake_sink_get_property (GObject * object, guint prop_id, GValue * value,
261 sink = GST_FAKE_SINK (object);
264 case PROP_STATE_ERROR:
265 g_value_set_enum (value, sink->state_error);
268 g_value_set_boolean (value, sink->silent);
271 g_value_set_boolean (value, sink->dump);
273 case PROP_SIGNAL_HANDOFFS:
274 g_value_set_boolean (value, sink->signal_handoffs);
276 case PROP_LAST_MESSAGE:
277 GST_OBJECT_LOCK (sink);
278 g_value_set_string (value, sink->last_message);
279 GST_OBJECT_UNLOCK (sink);
281 case PROP_CAN_ACTIVATE_PUSH:
282 g_value_set_boolean (value, GST_BASE_SINK (sink)->can_activate_push);
284 case PROP_CAN_ACTIVATE_PULL:
285 g_value_set_boolean (value, GST_BASE_SINK (sink)->can_activate_pull);
288 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
294 gst_fake_sink_event (GstBaseSink * bsink, GstEvent * event)
296 GstFakeSink *sink = GST_FAKE_SINK (bsink);
299 const GstStructure *s;
302 GST_OBJECT_LOCK (sink);
303 g_free (sink->last_message);
305 if ((s = gst_event_get_structure (event)))
306 sstr = gst_structure_to_string (s);
308 sstr = g_strdup ("");
311 g_strdup_printf ("event ******* E (type: %d, %s) %p",
312 GST_EVENT_TYPE (event), sstr, event);
314 GST_OBJECT_UNLOCK (sink);
316 g_object_notify (G_OBJECT (sink), "last_message");
323 gst_fake_sink_preroll (GstBaseSink * bsink, GstBuffer * buffer)
325 GstFakeSink *sink = GST_FAKE_SINK (bsink);
328 GST_OBJECT_LOCK (sink);
329 g_free (sink->last_message);
331 sink->last_message = g_strdup_printf ("preroll ******* ");
332 GST_OBJECT_UNLOCK (sink);
334 g_object_notify (G_OBJECT (sink), "last_message");
340 gst_fake_sink_render (GstBaseSink * bsink, GstBuffer * buf)
342 GstFakeSink *sink = GST_FAKE_SINK (bsink);
345 gchar ts_str[64], dur_str[64];
347 GST_OBJECT_LOCK (sink);
348 g_free (sink->last_message);
350 if (GST_BUFFER_TIMESTAMP (buf) != GST_CLOCK_TIME_NONE) {
351 g_snprintf (ts_str, sizeof (ts_str), "%" GST_TIME_FORMAT,
352 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
354 g_strlcpy (ts_str, "none", sizeof (ts_str));
357 if (GST_BUFFER_DURATION (buf) != GST_CLOCK_TIME_NONE) {
358 g_snprintf (dur_str, sizeof (dur_str), "%" GST_TIME_FORMAT,
359 GST_TIME_ARGS (GST_BUFFER_DURATION (buf)));
361 g_strlcpy (dur_str, "none", sizeof (dur_str));
365 g_strdup_printf ("chain ******* < (%5d bytes, timestamp: %s"
366 ", duration: %s, offset: %" G_GINT64_FORMAT ", offset_end: %"
367 G_GINT64_FORMAT ", flags: %d) %p", GST_BUFFER_SIZE (buf), ts_str,
368 dur_str, GST_BUFFER_OFFSET (buf), GST_BUFFER_OFFSET_END (buf),
369 GST_MINI_OBJECT (buf)->flags, buf);
370 GST_OBJECT_UNLOCK (sink);
372 g_object_notify (G_OBJECT (sink), "last_message");
374 if (sink->signal_handoffs)
375 g_signal_emit (G_OBJECT (sink), gst_fake_sink_signals[SIGNAL_HANDOFF], 0,
376 buf, bsink->sinkpad);
379 gst_util_dump_mem (GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
385 static GstStateChangeReturn
386 gst_fake_sink_change_state (GstElement * element, GstStateChange transition)
388 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
389 GstFakeSink *fakesink = GST_FAKE_SINK (element);
391 switch (transition) {
392 case GST_STATE_CHANGE_NULL_TO_READY:
393 if (fakesink->state_error == FAKE_SINK_STATE_ERROR_NULL_READY)
396 case GST_STATE_CHANGE_READY_TO_PAUSED:
397 if (fakesink->state_error == FAKE_SINK_STATE_ERROR_READY_PAUSED)
400 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
401 if (fakesink->state_error == FAKE_SINK_STATE_ERROR_PAUSED_PLAYING)
408 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
410 switch (transition) {
411 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
412 if (fakesink->state_error == FAKE_SINK_STATE_ERROR_PLAYING_PAUSED)
415 case GST_STATE_CHANGE_PAUSED_TO_READY:
416 if (fakesink->state_error == FAKE_SINK_STATE_ERROR_PAUSED_READY)
419 case GST_STATE_CHANGE_READY_TO_NULL:
420 if (fakesink->state_error == FAKE_SINK_STATE_ERROR_READY_NULL)
422 GST_OBJECT_LOCK (fakesink);
423 g_free (fakesink->last_message);
424 fakesink->last_message = NULL;
425 GST_OBJECT_UNLOCK (fakesink);
435 GST_ELEMENT_ERROR (element, CORE, STATE_CHANGE, (NULL), (NULL));
436 return GST_STATE_CHANGE_FAILURE;