2 * Copyright (C) 2006 Thomas Vander Stichele <thomas at apestaart dot org>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * SECTION:element-gdppay
26 * This element payloads GStreamer buffers and events using the
27 * GStreamer Data Protocol.
31 * gst-launch -v -m videotestsrc num-buffers=50 ! gdppay ! filesink location=test.gdp
33 * This pipeline creates a serialized video stream that can be played back
34 * with the example shown in gdpdepay.
43 #include <gst/dataprotocol/dataprotocol.h>
45 #include "gstgdppay.h"
47 /* elementfactory information */
48 static const GstElementDetails gdp_pay_details =
49 GST_ELEMENT_DETAILS ("GDP Payloader",
51 "Payloads GStreamer Data Protocol buffers",
52 "Thomas Vander Stichele <thomas at apestaart dot org>");
54 static GstStaticPadTemplate gdp_pay_sink_template =
55 GST_STATIC_PAD_TEMPLATE ("sink",
60 static GstStaticPadTemplate gdp_pay_src_template =
61 GST_STATIC_PAD_TEMPLATE ("src",
64 GST_STATIC_CAPS ("application/x-gdp"));
66 GST_DEBUG_CATEGORY_STATIC (gst_gdp_pay_debug);
67 #define GST_CAT_DEFAULT gst_gdp_pay_debug
69 #define DEFAULT_CRC_HEADER TRUE
70 #define DEFAULT_CRC_PAYLOAD FALSE
71 #define DEFAULT_VERSION GST_DP_VERSION_1_0
82 GST_DEBUG_CATEGORY_INIT (gst_gdp_pay_debug, "gdppay", 0, \
85 GST_BOILERPLATE_FULL (GstGDPPay, gst_gdp_pay, GstElement,
86 GST_TYPE_ELEMENT, _do_init);
88 static void gst_gdp_pay_reset (GstGDPPay * this);
89 static GstFlowReturn gst_gdp_pay_chain (GstPad * pad, GstBuffer * buffer);
91 static gboolean gst_gdp_pay_src_event (GstPad * pad, GstEvent * event);
92 static gboolean gst_gdp_pay_sink_event (GstPad * pad, GstEvent * event);
94 static GstStateChangeReturn gst_gdp_pay_change_state (GstElement *
95 element, GstStateChange transition);
97 static void gst_gdp_pay_set_property (GObject * object, guint prop_id,
98 const GValue * value, GParamSpec * pspec);
99 static void gst_gdp_pay_get_property (GObject * object, guint prop_id,
100 GValue * value, GParamSpec * pspec);
102 static void gst_gdp_pay_finalize (GObject * gobject);
105 gst_gdp_pay_base_init (gpointer g_class)
107 GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
109 gst_element_class_set_details (element_class, &gdp_pay_details);
111 gst_element_class_add_pad_template (element_class,
112 gst_static_pad_template_get (&gdp_pay_sink_template));
113 gst_element_class_add_pad_template (element_class,
114 gst_static_pad_template_get (&gdp_pay_src_template));
118 gst_gdp_pay_class_init (GstGDPPayClass * klass)
120 GObjectClass *gobject_class;
121 GstElementClass *gstelement_class;
123 gobject_class = (GObjectClass *) klass;
124 gstelement_class = (GstElementClass *) klass;
126 gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_gdp_pay_set_property);
127 gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_gdp_pay_get_property);
128 gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_gdp_pay_finalize);
130 g_object_class_install_property (gobject_class, PROP_CRC_HEADER,
131 g_param_spec_boolean ("crc-header", "CRC Header",
132 "Calculate and store a CRC checksum on the header",
133 DEFAULT_CRC_HEADER, G_PARAM_READWRITE));
134 g_object_class_install_property (gobject_class, PROP_CRC_PAYLOAD,
135 g_param_spec_boolean ("crc-payload", "CRC Payload",
136 "Calculate and store a CRC checksum on the payload",
137 DEFAULT_CRC_PAYLOAD, G_PARAM_READWRITE));
138 g_object_class_install_property (gobject_class, PROP_VERSION,
139 g_param_spec_enum ("version", "Version",
140 "Version of the GStreamer Data Protocol",
141 GST_TYPE_DP_VERSION, DEFAULT_VERSION, G_PARAM_READWRITE));
143 gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_gdp_pay_change_state);
147 gst_gdp_pay_init (GstGDPPay * gdppay, GstGDPPayClass * g_class)
150 gst_pad_new_from_static_template (&gdp_pay_sink_template, "sink");
151 gst_pad_set_chain_function (gdppay->sinkpad,
152 GST_DEBUG_FUNCPTR (gst_gdp_pay_chain));
153 gst_pad_set_event_function (gdppay->sinkpad,
154 GST_DEBUG_FUNCPTR (gst_gdp_pay_sink_event));
155 gst_element_add_pad (GST_ELEMENT (gdppay), gdppay->sinkpad);
158 gst_pad_new_from_static_template (&gdp_pay_src_template, "src");
159 gst_pad_set_event_function (gdppay->srcpad,
160 GST_DEBUG_FUNCPTR (gst_gdp_pay_src_event));
161 gst_element_add_pad (GST_ELEMENT (gdppay), gdppay->srcpad);
163 gdppay->crc_header = DEFAULT_CRC_HEADER;
164 gdppay->crc_payload = DEFAULT_CRC_PAYLOAD;
165 gdppay->header_flag = gdppay->crc_header | gdppay->crc_payload;
166 gdppay->version = DEFAULT_VERSION;
169 gdppay->packetizer = gst_dp_packetizer_new (gdppay->version);
173 gst_gdp_pay_finalize (GObject * gobject)
175 GstGDPPay *this = GST_GDP_PAY (gobject);
177 gst_gdp_pay_reset (this);
178 gst_dp_packetizer_free (this->packetizer);
180 GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (gobject));
184 gst_gdp_pay_reset (GstGDPPay * this)
186 GST_DEBUG_OBJECT (this, "Resetting GDP object");
187 /* clear the queued buffers */
188 while (this->queue) {
191 buffer = GST_BUFFER_CAST (this->queue->data);
192 GST_DEBUG_OBJECT (this, "Pushing queued GDP buffer %p", buffer);
194 /* delete buffer from queue now */
195 this->queue = g_list_delete_link (this->queue, this->queue);
198 gst_caps_unref (this->caps);
201 if (this->caps_buf) {
202 gst_buffer_unref (this->caps_buf);
203 this->caps_buf = NULL;
206 gst_buffer_unref (this->tag_buf);
207 this->tag_buf = NULL;
209 if (this->new_segment_buf) {
210 gst_buffer_unref (this->new_segment_buf);
211 this->new_segment_buf = NULL;
213 this->sent_streamheader = FALSE;
217 /* set OFFSET and OFFSET_END with running count */
219 gst_gdp_stamp_buffer (GstGDPPay * this, GstBuffer * buffer)
221 GST_BUFFER_OFFSET (buffer) = this->offset;
222 GST_BUFFER_OFFSET_END (buffer) = this->offset + GST_BUFFER_SIZE (buffer);
223 this->offset = GST_BUFFER_OFFSET_END (buffer);
227 gst_gdp_buffer_from_caps (GstGDPPay * this, GstCaps * caps)
229 GstBuffer *headerbuf;
230 GstBuffer *payloadbuf;
231 guint8 *header, *payload;
234 if (!this->packetizer->packet_from_caps (caps, this->header_flag, &len,
238 GST_LOG_OBJECT (this, "creating GDP header and payload buffer from caps");
239 headerbuf = gst_buffer_new ();
240 gst_buffer_set_data (headerbuf, header, len);
241 GST_BUFFER_MALLOCDATA (headerbuf) = header;
243 payloadbuf = gst_buffer_new ();
244 gst_buffer_set_data (payloadbuf, payload,
245 gst_dp_header_payload_length (header));
246 GST_BUFFER_MALLOCDATA (payloadbuf) = payload;
248 return gst_buffer_join (headerbuf, payloadbuf);
253 GST_WARNING_OBJECT (this, "could not create GDP header from caps");
259 gst_gdp_pay_buffer_from_buffer (GstGDPPay * this, GstBuffer * buffer)
261 GstBuffer *headerbuf;
265 if (!this->packetizer->header_from_buffer (buffer, this->header_flag, &len,
269 GST_LOG_OBJECT (this, "creating GDP header and payload buffer from buffer");
270 headerbuf = gst_buffer_new ();
271 gst_buffer_set_data (headerbuf, header, len);
272 GST_BUFFER_MALLOCDATA (headerbuf) = header;
274 /* we do not want to lose the ref on the incoming buffer */
275 gst_buffer_ref (buffer);
277 return gst_buffer_join (headerbuf, buffer);
282 GST_WARNING_OBJECT (this, "could not create GDP header from buffer");
288 gst_gdp_buffer_from_event (GstGDPPay * this, GstEvent * event)
290 GstBuffer *headerbuf;
291 GstBuffer *payloadbuf;
292 guint8 *header, *payload;
297 this->packetizer->packet_from_event (event, this->header_flag, &len,
302 GST_LOG_OBJECT (this, "creating GDP header and payload buffer from event");
303 headerbuf = gst_buffer_new ();
304 gst_buffer_set_data (headerbuf, header, len);
305 GST_BUFFER_MALLOCDATA (headerbuf) = header;
307 payloadbuf = gst_buffer_new ();
308 gst_buffer_set_data (payloadbuf, payload,
309 gst_dp_header_payload_length (header));
310 GST_BUFFER_MALLOCDATA (payloadbuf) = payload;
312 return gst_buffer_join (headerbuf, payloadbuf);
317 GST_WARNING_OBJECT (this, "could not create GDP header from event %s (%d)",
318 gst_event_type_get_name (event->type), event->type);
324 /* set our caps with streamheader, based on the latest newsegment and caps,
325 * and (possibly) GDP-serialized buffers of the streamheaders on the src pad */
327 gst_gdp_pay_reset_streamheader (GstGDPPay * this)
331 /* We use copies of these to avoid circular refcounts */
332 GstBuffer *new_segment_buf, *caps_buf, *tag_buf;
333 GstStructure *structure;
334 GstFlowReturn r = GST_FLOW_OK;
335 gboolean version_one_zero = TRUE;
337 GValue array = { 0 };
338 GValue value = { 0 };
340 GST_DEBUG_OBJECT (this, "start");
341 /* In version 0.2, we didn't need or send new segment or tags */
342 if (this->version == GST_DP_VERSION_0_2)
343 version_one_zero = FALSE;
345 if (version_one_zero) {
346 if (!this->new_segment_buf || !this->caps_buf) {
347 GST_DEBUG_OBJECT (this, "1.0, missing new_segment or caps, returning");
351 if (!this->caps_buf) {
352 GST_DEBUG_OBJECT (this, "0.2, missing caps, returning");
357 /* put copies of the buffers in a fixed list
358 * Stamp the buffers with offset and offset_end as well.
359 * We do this here so the offsets match the order the buffers go out in */
360 g_value_init (&array, GST_TYPE_ARRAY);
362 if (version_one_zero) {
363 gst_gdp_stamp_buffer (this, this->new_segment_buf);
364 GST_DEBUG_OBJECT (this, "1.0, appending copy of new segment buffer %p",
365 this->new_segment_buf);
366 new_segment_buf = gst_buffer_copy (this->new_segment_buf);
367 g_value_init (&value, GST_TYPE_BUFFER);
368 gst_value_set_buffer (&value, new_segment_buf);
369 gst_value_array_append_value (&array, &value);
370 g_value_unset (&value);
371 gst_buffer_unref (new_segment_buf);
374 gst_gdp_stamp_buffer (this, this->tag_buf);
375 GST_DEBUG_OBJECT (this, "1.0, appending copy of tag buffer %p",
377 tag_buf = gst_buffer_copy (this->tag_buf);
378 g_value_init (&value, GST_TYPE_BUFFER);
379 gst_value_set_buffer (&value, tag_buf);
380 gst_value_array_append_value (&array, &value);
381 g_value_unset (&value);
382 gst_buffer_unref (tag_buf);
386 gst_gdp_stamp_buffer (this, this->caps_buf);
387 GST_DEBUG_OBJECT (this, "appending copy of caps buffer %p", this->caps_buf);
388 caps_buf = gst_buffer_copy (this->caps_buf);
389 g_value_init (&value, GST_TYPE_BUFFER);
390 gst_value_set_buffer (&value, caps_buf);
391 gst_value_array_append_value (&array, &value);
392 g_value_unset (&value);
393 gst_buffer_unref (caps_buf);
395 /* we also need to add GDP serializations of the streamheaders of the
397 structure = gst_caps_get_structure (this->caps, 0);
398 if (gst_structure_has_field (structure, "streamheader")) {
404 sh = gst_structure_get_value (structure, "streamheader");
405 buffers = g_value_peek_pointer (sh);
406 GST_DEBUG_OBJECT (this,
407 "Need to serialize %d incoming streamheader buffers on ours",
409 for (i = 0; i < buffers->len; ++i) {
411 GstBuffer *outbuffer;
413 bufval = &g_array_index (buffers, GValue, i);
414 buffer = g_value_peek_pointer (bufval);
415 outbuffer = gst_gdp_pay_buffer_from_buffer (this, buffer);
417 g_value_unset (&array);
421 g_value_init (&value, GST_TYPE_BUFFER);
422 gst_value_set_buffer (&value, outbuffer);
423 gst_value_array_append_value (&array, &value);
424 g_value_unset (&value);
426 gst_buffer_unref (outbuffer);
429 GST_DEBUG_OBJECT (this, "no streamheader to serialize");
432 GST_DEBUG_OBJECT (this, "%d serialized buffers on streamheaders",
433 gst_value_array_get_size (&array));
434 caps = gst_caps_from_string ("application/x-gdp");
435 structure = gst_caps_get_structure (caps, 0);
437 gst_structure_set_value (structure, "streamheader", &array);
438 g_value_unset (&array);
440 GST_DEBUG_OBJECT (this, "Setting caps on src pad %" GST_PTR_FORMAT, caps);
441 gst_pad_set_caps (this->srcpad, caps);
442 gst_buffer_set_caps (this->caps_buf, caps);
443 gst_buffer_set_caps (this->new_segment_buf, caps);
445 /* if these are our first ever buffers, send out new_segment first */
446 if (!this->sent_streamheader) {
448 gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_BYTES, 0, -1, 0);
449 GST_DEBUG_OBJECT (this, "Sending out new_segment event %p", event);
450 if (!gst_pad_push_event (this->srcpad, event)) {
451 GST_WARNING_OBJECT (this, "pushing new segment failed");
457 /* push out these streamheader buffers, then flush our internal queue */
458 GST_DEBUG_OBJECT (this, "Pushing GDP new_segment buffer %p with offset %"
459 G_GINT64_FORMAT ", offset_end %" G_GINT64_FORMAT, this->new_segment_buf,
460 GST_BUFFER_OFFSET (this->new_segment_buf),
461 GST_BUFFER_OFFSET_END (this->new_segment_buf));
462 /* we stored these bufs with refcount 1, so make sure we keep a ref */
463 r = gst_pad_push (this->srcpad, gst_buffer_ref (this->new_segment_buf));
464 if (r != GST_FLOW_OK) {
465 GST_WARNING_OBJECT (this, "pushing GDP newsegment buffer returned %d", r);
469 GST_DEBUG_OBJECT (this, "Pushing GDP tag buffer %p", this->tag_buf);
470 /* we stored these bufs with refcount 1, so make sure we keep a ref */
471 r = gst_pad_push (this->srcpad, gst_buffer_ref (this->tag_buf));
472 if (r != GST_FLOW_OK) {
473 GST_WARNING_OBJECT (this, "pushing GDP tag buffer returned %d", r);
477 GST_DEBUG_OBJECT (this, "Pushing GDP caps buffer %p", this->caps_buf);
478 r = gst_pad_push (this->srcpad, gst_buffer_ref (this->caps_buf));
479 if (r != GST_FLOW_OK) {
480 GST_WARNING_OBJECT (this, "pushing GDP caps buffer returned %d", r);
483 this->sent_streamheader = TRUE;
484 GST_DEBUG_OBJECT (this, "need to push %d queued buffers",
485 g_list_length (this->queue));
486 while (this->queue) {
489 buffer = GST_BUFFER_CAST (this->queue->data);
490 GST_DEBUG_OBJECT (this, "Pushing queued GDP buffer %p", buffer);
492 /* delete buffer from queue now */
493 this->queue = g_list_delete_link (this->queue, this->queue);
495 /* set caps and push */
496 gst_buffer_set_caps (buffer, caps);
497 r = gst_pad_push (this->srcpad, buffer);
498 if (r != GST_FLOW_OK) {
499 GST_WARNING_OBJECT (this, "pushing queued GDP buffer returned %d", r);
505 gst_caps_unref (caps);
506 GST_DEBUG_OBJECT (this, "stop");
512 GST_ELEMENT_ERROR (this, STREAM, FORMAT, (NULL),
513 ("failed to create GDP buffer from streamheader"));
514 return GST_FLOW_ERROR;
518 /* queue a buffer internally if we haven't sent streamheader buffers yet;
519 * otherwise, just push on, this takes ownership of the buffer. */
521 gst_gdp_queue_buffer (GstGDPPay * this, GstBuffer * buffer)
523 if (this->sent_streamheader) {
524 GST_LOG_OBJECT (this, "Pushing GDP buffer %p, caps %" GST_PTR_FORMAT,
526 return gst_pad_push (this->srcpad, buffer);
529 /* store it on an internal queue. buffer remains reffed. */
530 this->queue = g_list_append (this->queue, buffer);
531 GST_DEBUG_OBJECT (this, "streamheader not sent yet, "
532 "queued buffer %p, now %d buffers queued",
533 buffer, g_list_length (this->queue));
539 gst_gdp_pay_chain (GstPad * pad, GstBuffer * buffer)
543 GstBuffer *outbuffer;
546 this = GST_GDP_PAY (gst_pad_get_parent (pad));
548 /* we should have received a new_segment before, otherwise it's a bug.
549 * fake one in that case */
550 if (!this->new_segment_buf) {
553 GST_WARNING_OBJECT (this,
554 "did not receive new-segment before first buffer");
555 event = gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_BYTES, 0, -1, 0);
556 outbuffer = gst_gdp_buffer_from_event (this, event);
557 gst_event_unref (event);
559 /* GDP 0.2 doesn't know about new-segment, so this is not fatal */
561 GST_ELEMENT_WARNING (this, STREAM, ENCODE, (NULL),
562 ("Could not create GDP buffer from new segment event"));
564 GST_BUFFER_TIMESTAMP (outbuffer) = GST_BUFFER_TIMESTAMP (buffer);
565 GST_BUFFER_DURATION (outbuffer) = 0;
566 GST_DEBUG_OBJECT (this, "Storing buffer %p as new_segment_buf",
568 this->new_segment_buf = outbuffer;
572 /* make sure we've received caps before */
573 caps = gst_buffer_get_caps (buffer);
574 if (!this->caps && !caps)
577 /* if the caps have changed, process caps first */
578 if (caps && !gst_caps_is_equal (this->caps, caps)) {
579 GST_LOG_OBJECT (this, "caps changed to %p, %" GST_PTR_FORMAT, caps, caps);
580 gst_caps_replace (&(this->caps), caps);
581 outbuffer = gst_gdp_buffer_from_caps (this, caps);
585 GST_BUFFER_TIMESTAMP (outbuffer) = GST_BUFFER_TIMESTAMP (buffer);
586 GST_BUFFER_DURATION (outbuffer) = 0;
587 GST_BUFFER_FLAG_SET (outbuffer, GST_BUFFER_FLAG_IN_CAPS);
588 this->caps_buf = outbuffer;
589 gst_gdp_pay_reset_streamheader (this);
593 gst_caps_unref (caps);
595 /* create a GDP header packet,
596 * then create a GST buffer of the header packet and the buffer contents */
597 outbuffer = gst_gdp_pay_buffer_from_buffer (this, buffer);
601 gst_gdp_stamp_buffer (this, outbuffer);
602 GST_BUFFER_TIMESTAMP (outbuffer) = GST_BUFFER_TIMESTAMP (buffer);
603 GST_BUFFER_DURATION (outbuffer) = GST_BUFFER_DURATION (buffer);
605 ret = gst_gdp_queue_buffer (this, outbuffer);
608 gst_buffer_unref (buffer);
609 gst_object_unref (this);
615 /* when returning a fatal error as a GstFlowReturn we must post an error
617 GST_ELEMENT_ERROR (this, STREAM, FORMAT, (NULL),
618 ("first received buffer does not have caps set"));
620 gst_caps_unref (caps);
621 ret = GST_FLOW_NOT_NEGOTIATED;
626 GST_ELEMENT_ERROR (this, STREAM, ENCODE, (NULL),
627 ("Could not create GDP buffer from caps %" GST_PTR_FORMAT, caps));
628 gst_caps_unref (caps);
629 ret = GST_FLOW_ERROR;
634 GST_ELEMENT_ERROR (this, STREAM, ENCODE, (NULL),
635 ("Could not create GDP buffer from buffer"));
636 ret = GST_FLOW_ERROR;
642 gst_gdp_pay_sink_event (GstPad * pad, GstEvent * event)
644 GstBuffer *outbuffer;
645 GstGDPPay *this = GST_GDP_PAY (gst_pad_get_parent (pad));
646 GstFlowReturn flowret;
649 GST_DEBUG_OBJECT (this, "received event %p of type %s (%d)",
650 event, gst_event_type_get_name (event->type), event->type);
652 /* now turn the event into a buffer */
653 outbuffer = gst_gdp_buffer_from_event (this, event);
657 GST_BUFFER_TIMESTAMP (outbuffer) = GST_EVENT_TIMESTAMP (event);
658 GST_BUFFER_DURATION (outbuffer) = 0;
660 /* if we got a new segment or tag event, we should put it on our streamheader,
661 * and not send it on */
662 switch (GST_EVENT_TYPE (event)) {
663 case GST_EVENT_NEWSEGMENT:
664 GST_DEBUG_OBJECT (this, "Storing buffer %p as new_segment_buf",
667 if (this->new_segment_buf)
668 gst_buffer_unref (this->new_segment_buf);
669 this->new_segment_buf = outbuffer;
671 gst_gdp_pay_reset_streamheader (this);
674 GST_DEBUG_OBJECT (this, "Storing buffer %p as tag_buf", outbuffer);
677 gst_buffer_unref (this->tag_buf);
678 this->tag_buf = outbuffer;
680 gst_gdp_pay_reset_streamheader (this);
683 GST_DEBUG_OBJECT (this, "queuing GDP buffer %p of event %p", outbuffer,
685 flowret = gst_gdp_queue_buffer (this, outbuffer);
686 if (flowret != GST_FLOW_OK)
691 /* if we have EOS, we should send on EOS ourselves */
692 if (GST_EVENT_TYPE (event) == GST_EVENT_EOS) {
693 GST_DEBUG_OBJECT (this, "Sending on EOS event %p", event);
694 /* ref, we unref later again */
695 ret = gst_pad_push_event (this->srcpad, gst_event_ref (event));
699 gst_event_unref (event);
700 gst_object_unref (this);
707 GST_ELEMENT_WARNING (this, STREAM, ENCODE, (NULL),
708 ("Could not create GDP buffer from received event (type %s)",
709 gst_event_type_get_name (event->type)));
715 GST_WARNING_OBJECT (this, "queueing GDP event buffer returned %d", flowret);
722 gst_gdp_pay_src_event (GstPad * pad, GstEvent * event)
727 this = GST_GDP_PAY (gst_pad_get_parent (pad));
729 switch (GST_EVENT_TYPE (event)) {
731 /* we refuse seek for now. */
732 gst_event_unref (event);
736 case GST_EVENT_NAVIGATION:
738 /* everything else is passed */
739 res = gst_pad_push_event (this->sinkpad, event);
742 gst_object_unref (this);
748 gst_gdp_pay_set_property (GObject * object, guint prop_id,
749 const GValue * value, GParamSpec * pspec)
753 g_return_if_fail (GST_IS_GDP_PAY (object));
754 this = GST_GDP_PAY (object);
757 case PROP_CRC_HEADER:
759 g_value_get_boolean (value) ? GST_DP_HEADER_FLAG_CRC_HEADER : 0;
760 this->header_flag = this->crc_header | this->crc_payload;
762 case PROP_CRC_PAYLOAD:
764 g_value_get_boolean (value) ? GST_DP_HEADER_FLAG_CRC_PAYLOAD : 0;
765 this->header_flag = this->crc_header | this->crc_payload;
768 this->version = g_value_get_enum (value);
771 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
777 gst_gdp_pay_get_property (GObject * object, guint prop_id,
778 GValue * value, GParamSpec * pspec)
782 g_return_if_fail (GST_IS_GDP_PAY (object));
783 this = GST_GDP_PAY (object);
786 case PROP_CRC_HEADER:
787 g_value_set_boolean (value, this->crc_header);
789 case PROP_CRC_PAYLOAD:
790 g_value_set_boolean (value, this->crc_payload);
793 g_value_set_enum (value, this->version);
796 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
801 static GstStateChangeReturn
802 gst_gdp_pay_change_state (GstElement * element, GstStateChange transition)
804 GstStateChangeReturn ret;
805 GstGDPPay *this = GST_GDP_PAY (element);
807 switch (transition) {
808 case GST_STATE_CHANGE_READY_TO_PAUSED:
814 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
816 switch (transition) {
817 case GST_STATE_CHANGE_PAUSED_TO_READY:
818 gst_gdp_pay_reset (this);
828 gst_gdp_pay_plugin_init (GstPlugin * plugin)
830 if (!gst_element_register (plugin, "gdppay", GST_RANK_NONE, GST_TYPE_GDP_PAY))