2 * Copyright 2009 Nokia Corporation <multimedia@maemo.org>
3 * 2006 Zeeshan Ali <zeeshan.ali@nokia.com>.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU Lesser General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 * SECTION:element-fpsdisplaysink
22 * @title: fpsdisplaysink
24 * Can display the current and average framerate as a testoverlay or on stdout.
26 * ## Example launch lines
28 * gst-launch-1.0 videotestsrc ! fpsdisplaysink
29 * gst-launch-1.0 videotestsrc ! fpsdisplaysink text-overlay=false
30 * gst-launch-1.0 filesrc location=video.avi ! decodebin name=d ! queue ! fpsdisplaysink d. ! queue ! fakesink sync=true
31 * gst-launch-1.0 playbin uri=file:///path/to/video.avi video-sink="fpsdisplaysink" audio-sink=fakesink
36 * - can we avoid plugging the textoverlay?
37 * - gst-seek 15 "videotestsrc ! fpsdisplaysink" dies when closing gst-seek
40 * - if we make ourself RANK_PRIMARY+10 or something that autovideosink would
41 * select and fpsdisplaysink is set to use autovideosink as its internal sink
42 * it doesn't work. Reason: autovideosink creates a fpsdisplaysink, that
43 * creates an autovideosink, that...
50 #include "fpsdisplaysink.h"
52 #define DEFAULT_SIGNAL_FPS_MEASUREMENTS FALSE
53 #define DEFAULT_FPS_UPDATE_INTERVAL_MS 500 /* 500 ms */
54 #define DEFAULT_FONT "Sans 15"
55 #define DEFAULT_SILENT FALSE
56 #define DEFAULT_LAST_MESSAGE NULL
58 /* generic templates */
59 static GstStaticPadTemplate fps_display_sink_template =
60 GST_STATIC_PAD_TEMPLATE ("sink",
65 GST_DEBUG_CATEGORY_STATIC (fps_display_sink_debug);
66 #define GST_CAT_DEFAULT fps_display_sink_debug
68 #define DEFAULT_SYNC TRUE
73 SIGNAL_FPS_MEASUREMENTS,
83 PROP_FPS_UPDATE_INTERVAL,
86 PROP_SIGNAL_FPS_MEASUREMENTS,
94 static GstBinClass *parent_class = NULL;
96 static GstStateChangeReturn fps_display_sink_change_state (GstElement * element,
97 GstStateChange transition);
98 static void fps_display_sink_set_property (GObject * object, guint prop_id,
99 const GValue * value, GParamSpec * pspec);
100 static void fps_display_sink_get_property (GObject * object, guint prop_id,
101 GValue * value, GParamSpec * pspec);
102 static void fps_display_sink_dispose (GObject * object);
103 static void fps_display_sink_handle_message (GstBin * bin,
104 GstMessage * message);
106 static gboolean display_current_fps (gpointer data);
108 static guint fpsdisplaysink_signals[LAST_SIGNAL] = { 0 };
110 static GParamSpec *pspec_last_message = NULL;
113 fps_display_sink_class_init (GstFPSDisplaySinkClass * klass)
115 GObjectClass *gobject_klass = G_OBJECT_CLASS (klass);
116 GstElementClass *gstelement_klass = GST_ELEMENT_CLASS (klass);
117 GstBinClass *bin_class = GST_BIN_CLASS (klass);
119 parent_class = g_type_class_peek_parent (klass);
121 gobject_klass->set_property = fps_display_sink_set_property;
122 gobject_klass->get_property = fps_display_sink_get_property;
123 gobject_klass->dispose = fps_display_sink_dispose;
125 bin_class->handle_message = fps_display_sink_handle_message;
127 g_object_class_install_property (gobject_klass, PROP_SYNC,
128 g_param_spec_boolean ("sync",
129 "Sync", "Sync on the clock (if the internally used sink doesn't "
130 "have this property it will be ignored", DEFAULT_SYNC,
131 G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE));
133 g_object_class_install_property (gobject_klass, PROP_TEXT_OVERLAY,
134 g_param_spec_boolean ("text-overlay",
136 "Whether to use text-overlay", TRUE,
137 G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE));
139 g_object_class_install_property (gobject_klass, PROP_VIDEO_SINK,
140 g_param_spec_object ("video-sink",
142 "Video sink to use (Must only be called on NULL state)",
143 GST_TYPE_ELEMENT, G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE));
145 g_object_class_install_property (gobject_klass, PROP_FPS_UPDATE_INTERVAL,
146 g_param_spec_int ("fps-update-interval", "Fps update interval",
147 "Time between consecutive frames per second measures and update "
148 " (in ms). Should be set on NULL state", 1, G_MAXINT,
149 DEFAULT_FPS_UPDATE_INTERVAL_MS,
150 G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE));
152 g_object_class_install_property (gobject_klass, PROP_MAX_FPS,
153 g_param_spec_double ("max-fps", "Max fps",
154 "Maximum fps rate measured. Reset when going from NULL to READY."
155 "-1 means no measurement has yet been done", -1, G_MAXDOUBLE, -1,
156 G_PARAM_STATIC_STRINGS | G_PARAM_READABLE));
158 g_object_class_install_property (gobject_klass, PROP_MIN_FPS,
159 g_param_spec_double ("min-fps", "Min fps",
160 "Minimum fps rate measured. Reset when going from NULL to READY."
161 "-1 means no measurement has yet been done", -1, G_MAXDOUBLE, -1,
162 G_PARAM_STATIC_STRINGS | G_PARAM_READABLE));
164 g_object_class_install_property (gobject_klass, PROP_FRAMES_DROPPED,
165 g_param_spec_uint ("frames-dropped", "dropped frames",
166 "Number of frames dropped by the sink", 0, G_MAXUINT, 0,
167 G_PARAM_STATIC_STRINGS | G_PARAM_READABLE));
169 g_object_class_install_property (gobject_klass, PROP_FRAMES_RENDERED,
170 g_param_spec_uint ("frames-rendered", "rendered frames",
171 "Number of frames rendered", 0, G_MAXUINT, 0,
172 G_PARAM_STATIC_STRINGS | G_PARAM_READABLE));
174 g_object_class_install_property (gobject_klass, PROP_SILENT,
175 g_param_spec_boolean ("silent", "enable stdout output",
176 "Don't produce last_message events", DEFAULT_SILENT,
177 G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE));
179 g_object_class_install_property (gobject_klass, PROP_SIGNAL_FPS_MEASUREMENTS,
180 g_param_spec_boolean ("signal-fps-measurements",
181 "Signal fps measurements",
182 "If the fps-measurements signal should be emited.",
183 DEFAULT_SIGNAL_FPS_MEASUREMENTS,
184 G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE));
186 pspec_last_message = g_param_spec_string ("last-message", "Last Message",
187 "The message describing current status", DEFAULT_LAST_MESSAGE,
188 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
189 g_object_class_install_property (gobject_klass, PROP_LAST_MESSAGE,
193 * GstFPSDisplaySink::fps-measurements:
194 * @fpsdisplaysink: a #GstFPSDisplaySink
195 * @fps: The current measured fps
196 * @droprate: The rate at which buffers are being dropped
197 * @avgfps: The average fps
199 * Signals the application about the measured fps
201 fpsdisplaysink_signals[SIGNAL_FPS_MEASUREMENTS] =
202 g_signal_new ("fps-measurements", G_TYPE_FROM_CLASS (klass),
203 G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL,
204 G_TYPE_NONE, 3, G_TYPE_DOUBLE, G_TYPE_DOUBLE, G_TYPE_DOUBLE);
206 gstelement_klass->change_state = fps_display_sink_change_state;
208 gst_element_class_add_static_pad_template (gstelement_klass,
209 &fps_display_sink_template);
211 gst_element_class_set_static_metadata (gstelement_klass,
212 "Measure and show framerate on videosink", "Sink/Video",
213 "Shows the current frame-rate and drop-rate of the videosink as overlay or text on stdout",
214 "Zeeshan Ali <zeeshan.ali@nokia.com>, Stefan Kost <stefan.kost@nokia.com>");
217 static GstPadProbeReturn
218 on_video_sink_data_flow (GstPad * pad, GstPadProbeInfo * info,
221 GstMiniObject *mini_obj = GST_PAD_PROBE_INFO_DATA (info);
222 GstFPSDisplaySink *self = GST_FPS_DISPLAY_SINK (user_data);
224 if (GST_IS_BUFFER (mini_obj)) {
227 /* assume the frame is going to be rendered. If it isnt', we'll get a qos
228 * message and reset ->frames_rendered from there.
230 g_atomic_int_inc (&self->frames_rendered);
232 ts = gst_util_get_timestamp ();
233 if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (self->start_ts))) {
234 self->interval_ts = self->last_ts = self->start_ts = ts;
236 if (GST_CLOCK_DIFF (self->interval_ts, ts) > self->fps_update_interval) {
237 display_current_fps (self);
238 self->interval_ts = ts;
242 return GST_PAD_PROBE_OK;
246 update_sub_sync (GstElement * sink, gpointer data)
248 /* Some sinks (like autovideosink) don't have the sync property so
249 * we check it exists before setting it to avoid a warning at
251 if (g_object_class_find_property (G_OBJECT_GET_CLASS (sink), "sync"))
252 g_object_set (sink, "sync", *((gboolean *) data), NULL);
254 GST_WARNING ("Internal sink doesn't have sync property");
258 update_sub_sync_foreach (const GValue * item, gpointer data)
260 GstElement *sink = g_value_get_object (item);
262 update_sub_sync (sink, data);
266 fps_display_sink_update_sink_sync (GstFPSDisplaySink * self)
268 GstIterator *iterator;
270 if (self->video_sink == NULL)
273 if (GST_IS_BIN (self->video_sink)) {
274 iterator = gst_bin_iterate_sinks (GST_BIN (self->video_sink));
275 gst_iterator_foreach (iterator,
276 (GstIteratorForeachFunction) update_sub_sync_foreach,
277 (void *) &self->sync);
278 gst_iterator_free (iterator);
280 update_sub_sync (self->video_sink, (void *) &self->sync);
285 update_video_sink (GstFPSDisplaySink * self, GstElement * video_sink)
289 if (self->video_sink) {
291 /* remove pad probe */
292 sink_pad = gst_element_get_static_pad (self->video_sink, "sink");
293 gst_pad_remove_probe (sink_pad, self->data_probe_id);
294 gst_object_unref (sink_pad);
295 self->data_probe_id = -1;
297 /* remove ghost pad target */
298 gst_ghost_pad_set_target (GST_GHOST_PAD (self->ghost_pad), NULL);
300 /* remove old sink */
301 gst_bin_remove (GST_BIN (self), self->video_sink);
302 gst_object_unref (self->video_sink);
305 /* create child elements */
306 self->video_sink = video_sink;
308 if (self->video_sink == NULL)
311 fps_display_sink_update_sink_sync (self);
313 /* take a ref before bin takes the ownership */
314 gst_object_ref (self->video_sink);
316 gst_bin_add (GST_BIN (self), self->video_sink);
318 /* attach or pad probe */
319 sink_pad = gst_element_get_static_pad (self->video_sink, "sink");
320 self->data_probe_id = gst_pad_add_probe (sink_pad,
321 GST_PAD_PROBE_TYPE_DATA_BOTH, on_video_sink_data_flow,
322 (gpointer) self, NULL);
323 gst_object_unref (sink_pad);
327 fps_display_sink_init (GstFPSDisplaySink * self,
328 GstFPSDisplaySinkClass * g_class)
330 self->sync = DEFAULT_SYNC;
331 self->signal_measurements = DEFAULT_SIGNAL_FPS_MEASUREMENTS;
332 self->use_text_overlay = TRUE;
333 self->fps_update_interval = GST_MSECOND * DEFAULT_FPS_UPDATE_INTERVAL_MS;
334 self->video_sink = NULL;
337 self->silent = DEFAULT_SILENT;
338 self->last_message = g_strdup (DEFAULT_LAST_MESSAGE);
340 self->ghost_pad = gst_ghost_pad_new_no_target ("sink", GST_PAD_SINK);
341 gst_element_add_pad (GST_ELEMENT (self), self->ghost_pad);
345 display_current_fps (gpointer data)
347 GstFPSDisplaySink *self = GST_FPS_DISPLAY_SINK (data);
348 guint64 frames_rendered, frames_dropped;
349 gdouble rr, dr, average_fps;
350 gchar fps_message[256];
351 gdouble time_diff, time_elapsed;
352 GstClockTime current_ts = gst_util_get_timestamp ();
354 frames_rendered = g_atomic_int_get (&self->frames_rendered);
355 frames_dropped = g_atomic_int_get (&self->frames_dropped);
357 if ((frames_rendered + frames_dropped) == 0) {
358 /* in case timer fired and we didn't yet get any QOS events */
362 time_diff = (gdouble) (current_ts - self->last_ts) / GST_SECOND;
363 time_elapsed = (gdouble) (current_ts - self->start_ts) / GST_SECOND;
365 rr = (gdouble) (frames_rendered - self->last_frames_rendered) / time_diff;
366 dr = (gdouble) (frames_dropped - self->last_frames_dropped) / time_diff;
368 average_fps = (gdouble) frames_rendered / time_elapsed;
370 if (self->max_fps == -1 || rr > self->max_fps) {
372 GST_DEBUG_OBJECT (self, "Updated max-fps to %f", rr);
374 if (self->min_fps == -1 || rr < self->min_fps) {
376 GST_DEBUG_OBJECT (self, "Updated min-fps to %f", rr);
379 if (self->signal_measurements) {
380 GST_LOG_OBJECT (self, "Signaling measurements: fps:%f droprate:%f "
381 "avg-fps:%f", rr, dr, average_fps);
382 g_signal_emit (G_OBJECT (self),
383 fpsdisplaysink_signals[SIGNAL_FPS_MEASUREMENTS], 0, rr, dr,
387 /* Display on a single line to make it easier to read and import
388 * into, for example, excel.. note: it would be nice to show
389 * timestamp too.. need to check if there is a sane way to log
390 * timestamp of last rendered buffer, so we could correlate dips
391 * in framerate to certain positions in the stream.
394 g_snprintf (fps_message, 255,
395 "rendered: %" G_GUINT64_FORMAT ", dropped: %" G_GUINT64_FORMAT
396 ", current: %.2f, average: %.2f", frames_rendered, frames_dropped, rr,
399 g_snprintf (fps_message, 255,
400 "rendered: %" G_GUINT64_FORMAT ", dropped: %" G_GUINT64_FORMAT
401 ", fps: %.2f, drop rate: %.2f", frames_rendered, frames_dropped, rr,
405 if (self->use_text_overlay) {
406 g_object_set (self->text_overlay, "text", fps_message, NULL);
410 GST_OBJECT_LOCK (self);
411 g_free (self->last_message);
412 self->last_message = g_strdup (fps_message);
413 GST_OBJECT_UNLOCK (self);
414 g_object_notify_by_pspec ((GObject *) self, pspec_last_message);
417 self->last_frames_rendered = frames_rendered;
418 self->last_frames_dropped = frames_dropped;
419 self->last_ts = current_ts;
425 fps_display_sink_start (GstFPSDisplaySink * self)
427 GstPad *target_pad = NULL;
430 self->frames_rendered = 0;
431 self->frames_dropped = 0;
432 self->last_frames_rendered = G_GUINT64_CONSTANT (0);
433 self->last_frames_dropped = G_GUINT64_CONSTANT (0);
437 /* init time stamps */
438 self->last_ts = self->start_ts = self->interval_ts = GST_CLOCK_TIME_NONE;
440 GST_DEBUG_OBJECT (self, "Use text-overlay? %d", self->use_text_overlay);
442 if (self->use_text_overlay) {
443 if (!self->text_overlay) {
445 gst_element_factory_make ("textoverlay", "fps-display-text-overlay");
446 if (!self->text_overlay) {
447 GST_WARNING_OBJECT (self, "text-overlay element could not be created");
448 self->use_text_overlay = FALSE;
449 goto no_text_overlay;
451 gst_object_ref (self->text_overlay);
452 g_object_set (self->text_overlay,
453 "font-desc", DEFAULT_FONT, "silent", FALSE, NULL);
454 gst_bin_add (GST_BIN (self), self->text_overlay);
456 if (!gst_element_link (self->text_overlay, self->video_sink)) {
457 GST_ERROR_OBJECT (self, "Could not link elements");
460 target_pad = gst_element_get_static_pad (self->text_overlay, "video_sink");
463 if (!self->use_text_overlay) {
464 if (self->text_overlay) {
465 gst_element_unlink (self->text_overlay, self->video_sink);
466 gst_bin_remove (GST_BIN (self), self->text_overlay);
467 self->text_overlay = NULL;
469 target_pad = gst_element_get_static_pad (self->video_sink, "sink");
471 gst_ghost_pad_set_target (GST_GHOST_PAD (self->ghost_pad), target_pad);
472 gst_object_unref (target_pad);
476 fps_display_sink_stop (GstFPSDisplaySink * self)
478 if (self->text_overlay) {
479 gst_element_unlink (self->text_overlay, self->video_sink);
480 gst_bin_remove (GST_BIN (self), self->text_overlay);
481 gst_object_unref (self->text_overlay);
482 self->text_overlay = NULL;
488 /* print the max and minimum fps values */
490 g_strdup_printf ("Max-fps: %0.2f, Min-fps: %0.2f", self->max_fps,
492 GST_OBJECT_LOCK (self);
493 g_free (self->last_message);
494 self->last_message = str;
495 GST_OBJECT_UNLOCK (self);
496 g_object_notify_by_pspec ((GObject *) self, pspec_last_message);
499 GST_OBJECT_LOCK (self);
500 g_free (self->last_message);
501 self->last_message = NULL;
502 GST_OBJECT_UNLOCK (self);
506 fps_display_sink_dispose (GObject * object)
508 GstFPSDisplaySink *self = GST_FPS_DISPLAY_SINK (object);
510 if (self->video_sink) {
511 gst_object_unref (self->video_sink);
512 self->video_sink = NULL;
515 if (self->text_overlay) {
516 gst_object_unref (self->text_overlay);
517 self->text_overlay = NULL;
520 GST_OBJECT_LOCK (self);
521 g_free (self->last_message);
522 self->last_message = NULL;
523 GST_OBJECT_UNLOCK (self);
525 G_OBJECT_CLASS (parent_class)->dispose (object);
529 fps_display_sink_set_property (GObject * object, guint prop_id,
530 const GValue * value, GParamSpec * pspec)
532 GstFPSDisplaySink *self = GST_FPS_DISPLAY_SINK (object);
536 self->sync = g_value_get_boolean (value);
537 fps_display_sink_update_sink_sync (self);
539 case PROP_TEXT_OVERLAY:
540 self->use_text_overlay = g_value_get_boolean (value);
542 if (self->text_overlay) {
543 if (!self->use_text_overlay) {
544 GST_DEBUG_OBJECT (self, "text-overlay set to false");
545 g_object_set (self->text_overlay, "text", "", "silent", TRUE, NULL);
547 GST_DEBUG_OBJECT (self, "text-overlay set to true");
548 g_object_set (self->text_overlay, "silent", FALSE, NULL);
552 case PROP_VIDEO_SINK:
553 /* FIXME should we add a state-lock or a lock around here?
554 * need to check if it is possible that a state change NULL->READY can
555 * happen while this code is executing on a different thread */
556 if (GST_STATE (self) != GST_STATE_NULL) {
557 g_warning ("Can't set video-sink property of fpsdisplaysink if not on "
561 update_video_sink (self, (GstElement *) g_value_get_object (value));
563 case PROP_FPS_UPDATE_INTERVAL:
564 self->fps_update_interval =
565 GST_MSECOND * (GstClockTime) g_value_get_int (value);
567 case PROP_SIGNAL_FPS_MEASUREMENTS:
568 self->signal_measurements = g_value_get_boolean (value);
571 self->silent = g_value_get_boolean (value);
574 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
580 fps_display_sink_get_property (GObject * object, guint prop_id,
581 GValue * value, GParamSpec * pspec)
583 GstFPSDisplaySink *self = GST_FPS_DISPLAY_SINK (object);
587 g_value_set_boolean (value, self->sync);
589 case PROP_TEXT_OVERLAY:
590 g_value_set_boolean (value, self->use_text_overlay);
592 case PROP_VIDEO_SINK:
593 g_value_set_object (value, self->video_sink);
595 case PROP_FPS_UPDATE_INTERVAL:
596 g_value_set_int (value, (gint) (self->fps_update_interval / GST_MSECOND));
599 g_value_set_double (value, self->max_fps);
602 g_value_set_double (value, self->min_fps);
604 case PROP_FRAMES_DROPPED:
605 g_value_set_uint (value, g_atomic_int_get (&self->frames_dropped));
607 case PROP_FRAMES_RENDERED:
608 g_value_set_uint (value, g_atomic_int_get (&self->frames_rendered));
610 case PROP_SIGNAL_FPS_MEASUREMENTS:
611 g_value_set_boolean (value, self->signal_measurements);
614 g_value_set_boolean (value, self->silent);
616 case PROP_LAST_MESSAGE:
617 GST_OBJECT_LOCK (self);
618 g_value_set_string (value, self->last_message);
619 GST_OBJECT_UNLOCK (self);
622 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
627 static GstStateChangeReturn
628 fps_display_sink_change_state (GstElement * element, GstStateChange transition)
630 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
631 GstFPSDisplaySink *self = GST_FPS_DISPLAY_SINK (element);
633 switch (transition) {
634 case GST_STATE_CHANGE_NULL_TO_READY:
636 if (self->video_sink == NULL) {
637 GstElement *video_sink;
639 GST_DEBUG_OBJECT (self, "No video sink set, creating autovideosink");
640 video_sink = gst_element_factory_make ("autovideosink",
641 "fps-display-video_sink");
642 update_video_sink (self, video_sink);
645 if (self->video_sink != NULL) {
646 fps_display_sink_start (self);
648 GST_ELEMENT_ERROR (self, LIBRARY, INIT,
649 ("No video sink set and autovideosink is not available"), (NULL));
650 ret = GST_STATE_CHANGE_FAILURE;
653 case GST_STATE_CHANGE_READY_TO_PAUSED:
654 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
655 /* reinforce our sync to children, as they might have changed
657 fps_display_sink_update_sink_sync (self);
663 ret = GST_CALL_PARENT_WITH_DEFAULT (GST_ELEMENT_CLASS, change_state,
664 (element, transition), GST_STATE_CHANGE_SUCCESS);
666 switch (transition) {
667 case GST_STATE_CHANGE_READY_TO_NULL:
668 fps_display_sink_stop (self);
678 fps_display_sink_handle_message (GstBin * bin, GstMessage * message)
680 GstFPSDisplaySink *self = (GstFPSDisplaySink *) bin;
682 if (GST_MESSAGE_TYPE (message) == GST_MESSAGE_QOS) {
684 guint64 rendered, dropped;
686 gst_message_parse_qos_stats (message, &format, &rendered, &dropped);
687 if (format != GST_FORMAT_UNDEFINED) {
689 g_atomic_int_set (&self->frames_rendered, rendered);
692 g_atomic_int_set (&self->frames_dropped, dropped);
696 GST_BIN_CLASS (parent_class)->handle_message (bin, message);
700 fps_display_sink_get_type (void)
702 static GType fps_display_sink_type = 0;
704 if (!fps_display_sink_type) {
705 static const GTypeInfo fps_display_sink_info = {
706 sizeof (GstFPSDisplaySinkClass),
709 (GClassInitFunc) fps_display_sink_class_init,
712 sizeof (GstFPSDisplaySink),
714 (GInstanceInitFunc) fps_display_sink_init,
717 fps_display_sink_type = g_type_register_static (GST_TYPE_BIN,
718 "GstFPSDisplaySink", &fps_display_sink_info, 0);
720 GST_DEBUG_CATEGORY_INIT (fps_display_sink_debug, "fpsdisplaysink", 0,
724 return fps_display_sink_type;