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 | G_PARAM_STATIC_STRINGS));
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 | G_PARAM_STATIC_STRINGS));
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,
142 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
144 gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_gdp_pay_change_state);
148 gst_gdp_pay_init (GstGDPPay * gdppay, GstGDPPayClass * g_class)
151 gst_pad_new_from_static_template (&gdp_pay_sink_template, "sink");
152 gst_pad_set_chain_function (gdppay->sinkpad,
153 GST_DEBUG_FUNCPTR (gst_gdp_pay_chain));
154 gst_pad_set_event_function (gdppay->sinkpad,
155 GST_DEBUG_FUNCPTR (gst_gdp_pay_sink_event));
156 gst_element_add_pad (GST_ELEMENT (gdppay), gdppay->sinkpad);
159 gst_pad_new_from_static_template (&gdp_pay_src_template, "src");
160 gst_pad_set_event_function (gdppay->srcpad,
161 GST_DEBUG_FUNCPTR (gst_gdp_pay_src_event));
162 gst_element_add_pad (GST_ELEMENT (gdppay), gdppay->srcpad);
164 gdppay->crc_header = DEFAULT_CRC_HEADER;
165 gdppay->crc_payload = DEFAULT_CRC_PAYLOAD;
166 gdppay->header_flag = gdppay->crc_header | gdppay->crc_payload;
167 gdppay->version = DEFAULT_VERSION;
170 gdppay->packetizer = gst_dp_packetizer_new (gdppay->version);
174 gst_gdp_pay_finalize (GObject * gobject)
176 GstGDPPay *this = GST_GDP_PAY (gobject);
178 gst_gdp_pay_reset (this);
179 gst_dp_packetizer_free (this->packetizer);
181 GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (gobject));
185 gst_gdp_pay_reset (GstGDPPay * this)
187 GST_DEBUG_OBJECT (this, "Resetting GDP object");
188 /* clear the queued buffers */
189 while (this->queue) {
192 buffer = GST_BUFFER_CAST (this->queue->data);
193 GST_DEBUG_OBJECT (this, "Pushing queued GDP buffer %p", buffer);
195 /* delete buffer from queue now */
196 this->queue = g_list_delete_link (this->queue, this->queue);
199 gst_caps_unref (this->caps);
202 if (this->caps_buf) {
203 gst_buffer_unref (this->caps_buf);
204 this->caps_buf = NULL;
207 gst_buffer_unref (this->tag_buf);
208 this->tag_buf = NULL;
210 if (this->new_segment_buf) {
211 gst_buffer_unref (this->new_segment_buf);
212 this->new_segment_buf = NULL;
214 this->sent_streamheader = FALSE;
218 /* set OFFSET and OFFSET_END with running count */
220 gst_gdp_stamp_buffer (GstGDPPay * this, GstBuffer * buffer)
222 GST_BUFFER_OFFSET (buffer) = this->offset;
223 GST_BUFFER_OFFSET_END (buffer) = this->offset + GST_BUFFER_SIZE (buffer);
224 this->offset = GST_BUFFER_OFFSET_END (buffer);
228 gst_gdp_buffer_from_caps (GstGDPPay * this, GstCaps * caps)
230 GstBuffer *headerbuf;
231 GstBuffer *payloadbuf;
232 guint8 *header, *payload;
235 if (!this->packetizer->packet_from_caps (caps, this->header_flag, &len,
239 GST_LOG_OBJECT (this, "creating GDP header and payload buffer from caps");
240 headerbuf = gst_buffer_new ();
241 gst_buffer_set_data (headerbuf, header, len);
242 GST_BUFFER_MALLOCDATA (headerbuf) = header;
244 payloadbuf = gst_buffer_new ();
245 gst_buffer_set_data (payloadbuf, payload,
246 gst_dp_header_payload_length (header));
247 GST_BUFFER_MALLOCDATA (payloadbuf) = payload;
249 return gst_buffer_join (headerbuf, payloadbuf);
254 GST_WARNING_OBJECT (this, "could not create GDP header from caps");
260 gst_gdp_pay_buffer_from_buffer (GstGDPPay * this, GstBuffer * buffer)
262 GstBuffer *headerbuf;
266 if (!this->packetizer->header_from_buffer (buffer, this->header_flag, &len,
270 GST_LOG_OBJECT (this, "creating GDP header and payload buffer from buffer");
271 headerbuf = gst_buffer_new ();
272 gst_buffer_set_data (headerbuf, header, len);
273 GST_BUFFER_MALLOCDATA (headerbuf) = header;
275 /* we do not want to lose the ref on the incoming buffer */
276 gst_buffer_ref (buffer);
278 return gst_buffer_join (headerbuf, buffer);
283 GST_WARNING_OBJECT (this, "could not create GDP header from buffer");
289 gst_gdp_buffer_from_event (GstGDPPay * this, GstEvent * event)
291 GstBuffer *headerbuf;
292 GstBuffer *payloadbuf;
293 guint8 *header, *payload;
298 this->packetizer->packet_from_event (event, this->header_flag, &len,
303 GST_LOG_OBJECT (this, "creating GDP header and payload buffer from event");
304 headerbuf = gst_buffer_new ();
305 gst_buffer_set_data (headerbuf, header, len);
306 GST_BUFFER_MALLOCDATA (headerbuf) = header;
308 payloadbuf = gst_buffer_new ();
309 gst_buffer_set_data (payloadbuf, payload,
310 gst_dp_header_payload_length (header));
311 GST_BUFFER_MALLOCDATA (payloadbuf) = payload;
313 return gst_buffer_join (headerbuf, payloadbuf);
318 GST_WARNING_OBJECT (this, "could not create GDP header from event %s (%d)",
319 gst_event_type_get_name (event->type), event->type);
325 /* set our caps with streamheader, based on the latest newsegment and caps,
326 * and (possibly) GDP-serialized buffers of the streamheaders on the src pad */
328 gst_gdp_pay_reset_streamheader (GstGDPPay * this)
332 /* We use copies of these to avoid circular refcounts */
333 GstBuffer *new_segment_buf, *caps_buf, *tag_buf;
334 GstStructure *structure;
335 GstFlowReturn r = GST_FLOW_OK;
336 gboolean version_one_zero = TRUE;
338 GValue array = { 0 };
339 GValue value = { 0 };
341 GST_DEBUG_OBJECT (this, "start");
342 /* In version 0.2, we didn't need or send new segment or tags */
343 if (this->version == GST_DP_VERSION_0_2)
344 version_one_zero = FALSE;
346 if (version_one_zero) {
347 if (!this->new_segment_buf || !this->caps_buf) {
348 GST_DEBUG_OBJECT (this, "1.0, missing new_segment or caps, returning");
352 if (!this->caps_buf) {
353 GST_DEBUG_OBJECT (this, "0.2, missing caps, returning");
358 /* put copies of the buffers in a fixed list
359 * Stamp the buffers with offset and offset_end as well.
360 * We do this here so the offsets match the order the buffers go out in */
361 g_value_init (&array, GST_TYPE_ARRAY);
363 if (version_one_zero) {
364 gst_gdp_stamp_buffer (this, this->new_segment_buf);
365 GST_DEBUG_OBJECT (this, "1.0, appending copy of new segment buffer %p",
366 this->new_segment_buf);
367 new_segment_buf = gst_buffer_copy (this->new_segment_buf);
368 g_value_init (&value, GST_TYPE_BUFFER);
369 gst_value_set_buffer (&value, new_segment_buf);
370 gst_value_array_append_value (&array, &value);
371 g_value_unset (&value);
372 gst_buffer_unref (new_segment_buf);
375 gst_gdp_stamp_buffer (this, this->tag_buf);
376 GST_DEBUG_OBJECT (this, "1.0, appending copy of tag buffer %p",
378 tag_buf = gst_buffer_copy (this->tag_buf);
379 g_value_init (&value, GST_TYPE_BUFFER);
380 gst_value_set_buffer (&value, tag_buf);
381 gst_value_array_append_value (&array, &value);
382 g_value_unset (&value);
383 gst_buffer_unref (tag_buf);
387 gst_gdp_stamp_buffer (this, this->caps_buf);
388 GST_DEBUG_OBJECT (this, "appending copy of caps buffer %p", this->caps_buf);
389 caps_buf = gst_buffer_copy (this->caps_buf);
390 g_value_init (&value, GST_TYPE_BUFFER);
391 gst_value_set_buffer (&value, caps_buf);
392 gst_value_array_append_value (&array, &value);
393 g_value_unset (&value);
394 gst_buffer_unref (caps_buf);
396 /* we also need to add GDP serializations of the streamheaders of the
398 structure = gst_caps_get_structure (this->caps, 0);
399 if (gst_structure_has_field (structure, "streamheader")) {
405 sh = gst_structure_get_value (structure, "streamheader");
406 buffers = g_value_peek_pointer (sh);
407 GST_DEBUG_OBJECT (this,
408 "Need to serialize %d incoming streamheader buffers on ours",
410 for (i = 0; i < buffers->len; ++i) {
412 GstBuffer *outbuffer;
414 bufval = &g_array_index (buffers, GValue, i);
415 buffer = g_value_peek_pointer (bufval);
416 outbuffer = gst_gdp_pay_buffer_from_buffer (this, buffer);
418 g_value_unset (&array);
422 g_value_init (&value, GST_TYPE_BUFFER);
423 gst_value_set_buffer (&value, outbuffer);
424 gst_value_array_append_value (&array, &value);
425 g_value_unset (&value);
427 gst_buffer_unref (outbuffer);
430 GST_DEBUG_OBJECT (this, "no streamheader to serialize");
433 GST_DEBUG_OBJECT (this, "%d serialized buffers on streamheaders",
434 gst_value_array_get_size (&array));
435 caps = gst_caps_from_string ("application/x-gdp");
436 structure = gst_caps_get_structure (caps, 0);
438 gst_structure_set_value (structure, "streamheader", &array);
439 g_value_unset (&array);
441 GST_DEBUG_OBJECT (this, "Setting caps on src pad %" GST_PTR_FORMAT, caps);
442 gst_pad_set_caps (this->srcpad, caps);
443 gst_buffer_set_caps (this->caps_buf, caps);
444 gst_buffer_set_caps (this->new_segment_buf, caps);
446 /* if these are our first ever buffers, send out new_segment first */
447 if (!this->sent_streamheader) {
449 gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_BYTES, 0, -1, 0);
450 GST_DEBUG_OBJECT (this, "Sending out new_segment event %p", event);
451 if (!gst_pad_push_event (this->srcpad, event)) {
452 GST_WARNING_OBJECT (this, "pushing new segment failed");
458 /* push out these streamheader buffers, then flush our internal queue */
459 GST_DEBUG_OBJECT (this, "Pushing GDP new_segment buffer %p with offset %"
460 G_GINT64_FORMAT ", offset_end %" G_GINT64_FORMAT, this->new_segment_buf,
461 GST_BUFFER_OFFSET (this->new_segment_buf),
462 GST_BUFFER_OFFSET_END (this->new_segment_buf));
463 /* we stored these bufs with refcount 1, so make sure we keep a ref */
464 r = gst_pad_push (this->srcpad, gst_buffer_ref (this->new_segment_buf));
465 if (r != GST_FLOW_OK) {
466 GST_WARNING_OBJECT (this, "pushing GDP newsegment buffer returned %d", r);
470 GST_DEBUG_OBJECT (this, "Pushing GDP tag buffer %p", this->tag_buf);
471 /* we stored these bufs with refcount 1, so make sure we keep a ref */
472 r = gst_pad_push (this->srcpad, gst_buffer_ref (this->tag_buf));
473 if (r != GST_FLOW_OK) {
474 GST_WARNING_OBJECT (this, "pushing GDP tag buffer returned %d", r);
478 GST_DEBUG_OBJECT (this, "Pushing GDP caps buffer %p", this->caps_buf);
479 r = gst_pad_push (this->srcpad, gst_buffer_ref (this->caps_buf));
480 if (r != GST_FLOW_OK) {
481 GST_WARNING_OBJECT (this, "pushing GDP caps buffer returned %d", r);
484 this->sent_streamheader = TRUE;
485 GST_DEBUG_OBJECT (this, "need to push %d queued buffers",
486 g_list_length (this->queue));
487 while (this->queue) {
490 buffer = GST_BUFFER_CAST (this->queue->data);
491 GST_DEBUG_OBJECT (this, "Pushing queued GDP buffer %p", buffer);
493 /* delete buffer from queue now */
494 this->queue = g_list_delete_link (this->queue, this->queue);
496 /* set caps and push */
497 gst_buffer_set_caps (buffer, caps);
498 r = gst_pad_push (this->srcpad, buffer);
499 if (r != GST_FLOW_OK) {
500 GST_WARNING_OBJECT (this, "pushing queued GDP buffer returned %d", r);
506 gst_caps_unref (caps);
507 GST_DEBUG_OBJECT (this, "stop");
513 GST_ELEMENT_ERROR (this, STREAM, FORMAT, (NULL),
514 ("failed to create GDP buffer from streamheader"));
515 return GST_FLOW_ERROR;
519 /* queue a buffer internally if we haven't sent streamheader buffers yet;
520 * otherwise, just push on, this takes ownership of the buffer. */
522 gst_gdp_queue_buffer (GstGDPPay * this, GstBuffer * buffer)
524 if (this->sent_streamheader) {
525 GST_LOG_OBJECT (this, "Pushing GDP buffer %p, caps %" GST_PTR_FORMAT,
527 return gst_pad_push (this->srcpad, buffer);
530 /* store it on an internal queue. buffer remains reffed. */
531 this->queue = g_list_append (this->queue, buffer);
532 GST_DEBUG_OBJECT (this, "streamheader not sent yet, "
533 "queued buffer %p, now %d buffers queued",
534 buffer, g_list_length (this->queue));
540 gst_gdp_pay_chain (GstPad * pad, GstBuffer * buffer)
544 GstBuffer *outbuffer;
547 this = GST_GDP_PAY (gst_pad_get_parent (pad));
549 /* we should have received a new_segment before, otherwise it's a bug.
550 * fake one in that case */
551 if (!this->new_segment_buf) {
554 GST_WARNING_OBJECT (this,
555 "did not receive new-segment before first buffer");
556 event = gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_BYTES, 0, -1, 0);
557 outbuffer = gst_gdp_buffer_from_event (this, event);
558 gst_event_unref (event);
560 /* GDP 0.2 doesn't know about new-segment, so this is not fatal */
562 GST_ELEMENT_WARNING (this, STREAM, ENCODE, (NULL),
563 ("Could not create GDP buffer from new segment event"));
565 GST_BUFFER_TIMESTAMP (outbuffer) = GST_BUFFER_TIMESTAMP (buffer);
566 GST_BUFFER_DURATION (outbuffer) = 0;
567 GST_BUFFER_FLAG_SET (outbuffer, GST_BUFFER_FLAG_IN_CAPS);
568 GST_DEBUG_OBJECT (this, "Storing buffer %p as new_segment_buf",
570 this->new_segment_buf = outbuffer;
574 /* make sure we've received caps before */
575 caps = gst_buffer_get_caps (buffer);
576 if (!this->caps && !caps)
579 /* if the caps have changed, process caps first */
580 if (caps && !gst_caps_is_equal (this->caps, caps)) {
581 GST_LOG_OBJECT (this, "caps changed to %p, %" GST_PTR_FORMAT, caps, caps);
582 gst_caps_replace (&(this->caps), caps);
583 outbuffer = gst_gdp_buffer_from_caps (this, caps);
587 GST_BUFFER_TIMESTAMP (outbuffer) = GST_BUFFER_TIMESTAMP (buffer);
588 GST_BUFFER_DURATION (outbuffer) = 0;
589 GST_BUFFER_FLAG_SET (outbuffer, GST_BUFFER_FLAG_IN_CAPS);
590 this->caps_buf = outbuffer;
591 gst_gdp_pay_reset_streamheader (this);
595 gst_caps_unref (caps);
597 /* create a GDP header packet,
598 * then create a GST buffer of the header packet and the buffer contents */
599 outbuffer = gst_gdp_pay_buffer_from_buffer (this, buffer);
603 /* If the incoming buffer is IN_CAPS, that means we have it on the caps
604 * as streamheader, and we have serialized a GDP version of it and put it
606 if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_IN_CAPS)) {
607 GST_DEBUG_OBJECT (this, "Setting IN_CAPS flag on outgoing buffer %p",
609 GST_BUFFER_FLAG_SET (outbuffer, GST_BUFFER_FLAG_IN_CAPS);
612 gst_gdp_stamp_buffer (this, outbuffer);
613 GST_BUFFER_TIMESTAMP (outbuffer) = GST_BUFFER_TIMESTAMP (buffer);
614 GST_BUFFER_DURATION (outbuffer) = GST_BUFFER_DURATION (buffer);
616 ret = gst_gdp_queue_buffer (this, outbuffer);
619 gst_buffer_unref (buffer);
620 gst_object_unref (this);
626 /* when returning a fatal error as a GstFlowReturn we must post an error
628 GST_ELEMENT_ERROR (this, STREAM, FORMAT, (NULL),
629 ("first received buffer does not have caps set"));
631 gst_caps_unref (caps);
632 ret = GST_FLOW_NOT_NEGOTIATED;
637 GST_ELEMENT_ERROR (this, STREAM, ENCODE, (NULL),
638 ("Could not create GDP buffer from caps %" GST_PTR_FORMAT, caps));
639 gst_caps_unref (caps);
640 ret = GST_FLOW_ERROR;
645 GST_ELEMENT_ERROR (this, STREAM, ENCODE, (NULL),
646 ("Could not create GDP buffer from buffer"));
647 ret = GST_FLOW_ERROR;
653 gst_gdp_pay_sink_event (GstPad * pad, GstEvent * event)
655 GstBuffer *outbuffer;
656 GstGDPPay *this = GST_GDP_PAY (gst_pad_get_parent (pad));
657 GstFlowReturn flowret;
660 GST_DEBUG_OBJECT (this, "received event %p of type %s (%d)",
661 event, gst_event_type_get_name (event->type), event->type);
663 /* now turn the event into a buffer */
664 outbuffer = gst_gdp_buffer_from_event (this, event);
668 GST_BUFFER_TIMESTAMP (outbuffer) = GST_EVENT_TIMESTAMP (event);
669 GST_BUFFER_DURATION (outbuffer) = 0;
671 /* if we got a new segment or tag event, we should put it on our streamheader,
672 * and not send it on */
673 switch (GST_EVENT_TYPE (event)) {
674 case GST_EVENT_NEWSEGMENT:
675 GST_DEBUG_OBJECT (this, "Storing in caps buffer %p as new_segment_buf",
678 if (this->new_segment_buf)
679 gst_buffer_unref (this->new_segment_buf);
680 this->new_segment_buf = outbuffer;
682 GST_BUFFER_FLAG_SET (outbuffer, GST_BUFFER_FLAG_IN_CAPS);
683 gst_gdp_pay_reset_streamheader (this);
686 GST_DEBUG_OBJECT (this, "Storing in caps buffer %p as tag_buf",
690 gst_buffer_unref (this->tag_buf);
691 this->tag_buf = outbuffer;
693 GST_BUFFER_FLAG_SET (outbuffer, GST_BUFFER_FLAG_IN_CAPS);
694 gst_gdp_pay_reset_streamheader (this);
697 GST_DEBUG_OBJECT (this, "queuing GDP buffer %p of event %p", outbuffer,
699 flowret = gst_gdp_queue_buffer (this, outbuffer);
700 if (flowret != GST_FLOW_OK)
705 /* if we have EOS, we should send on EOS ourselves */
706 if (GST_EVENT_TYPE (event) == GST_EVENT_EOS) {
707 GST_DEBUG_OBJECT (this, "Sending on EOS event %p", event);
708 /* ref, we unref later again */
709 ret = gst_pad_push_event (this->srcpad, gst_event_ref (event));
713 gst_event_unref (event);
714 gst_object_unref (this);
721 GST_ELEMENT_WARNING (this, STREAM, ENCODE, (NULL),
722 ("Could not create GDP buffer from received event (type %s)",
723 gst_event_type_get_name (event->type)));
729 GST_WARNING_OBJECT (this, "queueing GDP event buffer returned %d", flowret);
736 gst_gdp_pay_src_event (GstPad * pad, GstEvent * event)
741 this = GST_GDP_PAY (gst_pad_get_parent (pad));
743 switch (GST_EVENT_TYPE (event)) {
745 /* we refuse seek for now. */
746 gst_event_unref (event);
750 case GST_EVENT_NAVIGATION:
752 /* everything else is passed */
753 res = gst_pad_push_event (this->sinkpad, event);
756 gst_object_unref (this);
762 gst_gdp_pay_set_property (GObject * object, guint prop_id,
763 const GValue * value, GParamSpec * pspec)
767 g_return_if_fail (GST_IS_GDP_PAY (object));
768 this = GST_GDP_PAY (object);
771 case PROP_CRC_HEADER:
773 g_value_get_boolean (value) ? GST_DP_HEADER_FLAG_CRC_HEADER : 0;
774 this->header_flag = this->crc_header | this->crc_payload;
776 case PROP_CRC_PAYLOAD:
778 g_value_get_boolean (value) ? GST_DP_HEADER_FLAG_CRC_PAYLOAD : 0;
779 this->header_flag = this->crc_header | this->crc_payload;
782 this->version = g_value_get_enum (value);
785 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
791 gst_gdp_pay_get_property (GObject * object, guint prop_id,
792 GValue * value, GParamSpec * pspec)
796 g_return_if_fail (GST_IS_GDP_PAY (object));
797 this = GST_GDP_PAY (object);
800 case PROP_CRC_HEADER:
801 g_value_set_boolean (value, this->crc_header);
803 case PROP_CRC_PAYLOAD:
804 g_value_set_boolean (value, this->crc_payload);
807 g_value_set_enum (value, this->version);
810 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
815 static GstStateChangeReturn
816 gst_gdp_pay_change_state (GstElement * element, GstStateChange transition)
818 GstStateChangeReturn ret;
819 GstGDPPay *this = GST_GDP_PAY (element);
821 switch (transition) {
822 case GST_STATE_CHANGE_READY_TO_PAUSED:
828 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
830 switch (transition) {
831 case GST_STATE_CHANGE_PAUSED_TO_READY:
832 gst_gdp_pay_reset (this);
842 gst_gdp_pay_plugin_init (GstPlugin * plugin)
844 if (!gst_element_register (plugin, "gdppay", GST_RANK_NONE, GST_TYPE_GDP_PAY))