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
24 * This element payloads GStreamer buffers and events using the
25 * GStreamer Data Protocol.
29 * gst-launch -v -m videotestsrc num-buffers=50 ! gdppay ! filesink location=test.gdp
30 * ]| This pipeline creates a serialized video stream that can be played back
31 * with the example shown in gdpdepay.
39 #include <gst/dataprotocol/dataprotocol.h>
41 #include "gstgdppay.h"
43 /* elementfactory information */
44 static const GstElementDetails gdp_pay_details =
45 GST_ELEMENT_DETAILS ("GDP Payloader",
47 "Payloads GStreamer Data Protocol buffers",
48 "Thomas Vander Stichele <thomas at apestaart dot org>");
50 static GstStaticPadTemplate gdp_pay_sink_template =
51 GST_STATIC_PAD_TEMPLATE ("sink",
56 static GstStaticPadTemplate gdp_pay_src_template =
57 GST_STATIC_PAD_TEMPLATE ("src",
60 GST_STATIC_CAPS ("application/x-gdp"));
62 GST_DEBUG_CATEGORY_STATIC (gst_gdp_pay_debug);
63 #define GST_CAT_DEFAULT gst_gdp_pay_debug
65 #define DEFAULT_CRC_HEADER TRUE
66 #define DEFAULT_CRC_PAYLOAD FALSE
67 #define DEFAULT_VERSION GST_DP_VERSION_1_0
78 GST_DEBUG_CATEGORY_INIT (gst_gdp_pay_debug, "gdppay", 0, \
81 GST_BOILERPLATE_FULL (GstGDPPay, gst_gdp_pay, GstElement,
82 GST_TYPE_ELEMENT, _do_init);
84 static void gst_gdp_pay_reset (GstGDPPay * this);
86 static GstFlowReturn gst_gdp_pay_chain (GstPad * pad, GstBuffer * buffer);
88 static gboolean gst_gdp_pay_src_event (GstPad * pad, GstEvent * event);
90 static gboolean gst_gdp_pay_sink_event (GstPad * pad, GstEvent * event);
92 static GstStateChangeReturn gst_gdp_pay_change_state (GstElement *
93 element, GstStateChange transition);
95 static void gst_gdp_pay_set_property (GObject * object, guint prop_id,
96 const GValue * value, GParamSpec * pspec);
97 static void gst_gdp_pay_get_property (GObject * object, guint prop_id,
98 GValue * value, GParamSpec * pspec);
100 static void gst_gdp_pay_finalize (GObject * gobject);
103 gst_gdp_pay_base_init (gpointer g_class)
105 GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
107 gst_element_class_set_details (element_class, &gdp_pay_details);
109 gst_element_class_add_pad_template (element_class,
110 gst_static_pad_template_get (&gdp_pay_sink_template));
111 gst_element_class_add_pad_template (element_class,
112 gst_static_pad_template_get (&gdp_pay_src_template));
116 gst_gdp_pay_class_init (GstGDPPayClass * klass)
118 GObjectClass *gobject_class;
120 GstElementClass *gstelement_class;
122 gobject_class = (GObjectClass *) klass;
123 gstelement_class = (GstElementClass *) klass;
125 gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_gdp_pay_set_property);
126 gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_gdp_pay_get_property);
127 gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_gdp_pay_finalize);
129 g_object_class_install_property (gobject_class, PROP_CRC_HEADER,
130 g_param_spec_boolean ("crc-header", "CRC Header",
131 "Calculate and store a CRC checksum on the header",
132 DEFAULT_CRC_HEADER, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
133 g_object_class_install_property (gobject_class, PROP_CRC_PAYLOAD,
134 g_param_spec_boolean ("crc-payload", "CRC Payload",
135 "Calculate and store a CRC checksum on the payload",
136 DEFAULT_CRC_PAYLOAD, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
137 g_object_class_install_property (gobject_class, PROP_VERSION,
138 g_param_spec_enum ("version", "Version",
139 "Version of the GStreamer Data Protocol",
140 GST_TYPE_DP_VERSION, DEFAULT_VERSION,
141 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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);
193 /* delete buffer from queue now */
194 this->queue = g_list_delete_link (this->queue, this->queue);
196 gst_buffer_unref (buffer);
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;
232 GstBuffer *payloadbuf;
234 guint8 *header, *payload;
238 if (!this->packetizer->packet_from_caps (caps, this->header_flag, &len,
242 GST_LOG_OBJECT (this, "creating GDP header and payload buffer from caps");
243 headerbuf = gst_buffer_new ();
244 gst_buffer_set_data (headerbuf, header, len);
245 GST_BUFFER_MALLOCDATA (headerbuf) = header;
247 payloadbuf = gst_buffer_new ();
248 gst_buffer_set_data (payloadbuf, payload,
249 gst_dp_header_payload_length (header));
250 GST_BUFFER_MALLOCDATA (payloadbuf) = payload;
252 return gst_buffer_join (headerbuf, payloadbuf);
257 GST_WARNING_OBJECT (this, "could not create GDP header from caps");
263 gst_gdp_pay_buffer_from_buffer (GstGDPPay * this, GstBuffer * buffer)
265 GstBuffer *headerbuf;
271 if (!this->packetizer->header_from_buffer (buffer, this->header_flag, &len,
275 GST_LOG_OBJECT (this, "creating GDP header and payload buffer from buffer");
276 headerbuf = gst_buffer_new ();
277 gst_buffer_set_data (headerbuf, header, len);
278 GST_BUFFER_MALLOCDATA (headerbuf) = header;
280 /* we do not want to lose the ref on the incoming buffer */
281 gst_buffer_ref (buffer);
283 return gst_buffer_join (headerbuf, buffer);
288 GST_WARNING_OBJECT (this, "could not create GDP header from buffer");
294 gst_gdp_buffer_from_event (GstGDPPay * this, GstEvent * event)
296 GstBuffer *headerbuf;
298 GstBuffer *payloadbuf;
300 guint8 *header, *payload;
307 this->packetizer->packet_from_event (event, this->header_flag, &len,
312 GST_LOG_OBJECT (this, "creating GDP header and payload buffer from event");
313 headerbuf = gst_buffer_new ();
314 gst_buffer_set_data (headerbuf, header, len);
315 GST_BUFFER_MALLOCDATA (headerbuf) = header;
317 payloadbuf = gst_buffer_new ();
318 gst_buffer_set_data (payloadbuf, payload,
319 gst_dp_header_payload_length (header));
320 GST_BUFFER_MALLOCDATA (payloadbuf) = payload;
322 return gst_buffer_join (headerbuf, payloadbuf);
327 GST_WARNING_OBJECT (this, "could not create GDP header from event %s (%d)",
328 gst_event_type_get_name (event->type), event->type);
334 /* set our caps with streamheader, based on the latest newsegment and caps,
335 * and (possibly) GDP-serialized buffers of the streamheaders on the src pad */
337 gst_gdp_pay_reset_streamheader (GstGDPPay * this)
341 /* We use copies of these to avoid circular refcounts */
342 GstBuffer *new_segment_buf, *caps_buf, *tag_buf;
344 GstStructure *structure;
346 GstFlowReturn r = GST_FLOW_OK;
348 gboolean version_one_zero = TRUE;
350 GValue array = { 0 };
351 GValue value = { 0 };
353 GST_DEBUG_OBJECT (this, "start");
354 /* In version 0.2, we didn't need or send new segment or tags */
355 if (this->version == GST_DP_VERSION_0_2)
356 version_one_zero = FALSE;
358 if (version_one_zero) {
359 if (!this->new_segment_buf || !this->caps_buf) {
360 GST_DEBUG_OBJECT (this, "1.0, missing new_segment or caps, returning");
364 if (!this->caps_buf) {
365 GST_DEBUG_OBJECT (this, "0.2, missing caps, returning");
370 /* put copies of the buffers in a fixed list
371 * Stamp the buffers with offset and offset_end as well.
372 * We do this here so the offsets match the order the buffers go out in */
373 g_value_init (&array, GST_TYPE_ARRAY);
375 if (version_one_zero) {
376 gst_gdp_stamp_buffer (this, this->new_segment_buf);
377 GST_DEBUG_OBJECT (this, "1.0, appending copy of new segment buffer %p",
378 this->new_segment_buf);
379 new_segment_buf = gst_buffer_copy (this->new_segment_buf);
380 gst_buffer_set_caps (new_segment_buf, NULL);
381 g_value_init (&value, GST_TYPE_BUFFER);
382 gst_value_set_buffer (&value, new_segment_buf);
383 gst_value_array_append_value (&array, &value);
384 g_value_unset (&value);
385 gst_buffer_unref (new_segment_buf);
388 gst_gdp_stamp_buffer (this, this->tag_buf);
389 GST_DEBUG_OBJECT (this, "1.0, appending copy of tag buffer %p",
391 tag_buf = gst_buffer_copy (this->tag_buf);
392 gst_buffer_set_caps (tag_buf, NULL);
393 g_value_init (&value, GST_TYPE_BUFFER);
394 gst_value_set_buffer (&value, tag_buf);
395 gst_value_array_append_value (&array, &value);
396 g_value_unset (&value);
397 gst_buffer_unref (tag_buf);
401 gst_gdp_stamp_buffer (this, this->caps_buf);
402 GST_DEBUG_OBJECT (this, "appending copy of caps buffer %p", this->caps_buf);
403 caps_buf = gst_buffer_copy (this->caps_buf);
404 gst_buffer_set_caps (caps_buf, NULL);
405 g_value_init (&value, GST_TYPE_BUFFER);
406 gst_value_set_buffer (&value, caps_buf);
407 gst_value_array_append_value (&array, &value);
408 g_value_unset (&value);
409 gst_buffer_unref (caps_buf);
411 /* we also need to add GDP serializations of the streamheaders of the
413 structure = gst_caps_get_structure (this->caps, 0);
414 if (gst_structure_has_field (structure, "streamheader")) {
423 sh = gst_structure_get_value (structure, "streamheader");
424 buffers = g_value_peek_pointer (sh);
425 GST_DEBUG_OBJECT (this,
426 "Need to serialize %d incoming streamheader buffers on ours",
428 for (i = 0; i < buffers->len; ++i) {
431 GstBuffer *outbuffer;
433 bufval = &g_array_index (buffers, GValue, i);
434 buffer = g_value_peek_pointer (bufval);
435 outbuffer = gst_gdp_pay_buffer_from_buffer (this, buffer);
437 g_value_unset (&array);
441 g_value_init (&value, GST_TYPE_BUFFER);
442 gst_value_set_buffer (&value, outbuffer);
443 gst_value_array_append_value (&array, &value);
444 g_value_unset (&value);
446 gst_buffer_unref (outbuffer);
449 GST_DEBUG_OBJECT (this, "no streamheader to serialize");
452 GST_DEBUG_OBJECT (this, "%d serialized buffers on streamheaders",
453 gst_value_array_get_size (&array));
454 caps = gst_caps_from_string ("application/x-gdp");
455 structure = gst_caps_get_structure (caps, 0);
457 gst_structure_set_value (structure, "streamheader", &array);
458 g_value_unset (&array);
460 GST_DEBUG_OBJECT (this, "Setting caps on src pad %" GST_PTR_FORMAT, caps);
461 gst_pad_set_caps (this->srcpad, caps);
462 gst_buffer_set_caps (this->caps_buf, caps);
463 gst_buffer_set_caps (this->new_segment_buf, caps);
465 /* if these are our first ever buffers, send out new_segment first */
466 if (!this->sent_streamheader) {
468 gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_BYTES, 0, -1, 0);
469 GST_DEBUG_OBJECT (this, "Sending out new_segment event %p", event);
470 if (!gst_pad_push_event (this->srcpad, event)) {
471 GST_WARNING_OBJECT (this, "pushing new segment failed");
477 /* push out these streamheader buffers, then flush our internal queue */
478 GST_DEBUG_OBJECT (this, "Pushing GDP new_segment buffer %p with offset %"
479 G_GINT64_FORMAT ", offset_end %" G_GINT64_FORMAT, this->new_segment_buf,
480 GST_BUFFER_OFFSET (this->new_segment_buf),
481 GST_BUFFER_OFFSET_END (this->new_segment_buf));
482 /* we stored these bufs with refcount 1, so make sure we keep a ref */
483 r = gst_pad_push (this->srcpad, gst_buffer_ref (this->new_segment_buf));
484 if (r != GST_FLOW_OK) {
485 GST_WARNING_OBJECT (this, "pushing GDP newsegment buffer returned %d", r);
489 GST_DEBUG_OBJECT (this, "Pushing GDP tag buffer %p", this->tag_buf);
490 /* we stored these bufs with refcount 1, so make sure we keep a ref */
491 r = gst_pad_push (this->srcpad, gst_buffer_ref (this->tag_buf));
492 if (r != GST_FLOW_OK) {
493 GST_WARNING_OBJECT (this, "pushing GDP tag buffer returned %d", r);
497 GST_DEBUG_OBJECT (this, "Pushing GDP caps buffer %p", this->caps_buf);
498 r = gst_pad_push (this->srcpad, gst_buffer_ref (this->caps_buf));
499 if (r != GST_FLOW_OK) {
500 GST_WARNING_OBJECT (this, "pushing GDP caps buffer returned %d", r);
503 this->sent_streamheader = TRUE;
504 GST_DEBUG_OBJECT (this, "need to push %d queued buffers",
505 g_list_length (this->queue));
506 while (this->queue) {
509 buffer = GST_BUFFER_CAST (this->queue->data);
510 GST_DEBUG_OBJECT (this, "Pushing queued GDP buffer %p", buffer);
512 /* delete buffer from queue now */
513 this->queue = g_list_delete_link (this->queue, this->queue);
515 /* set caps and push */
516 gst_buffer_set_caps (buffer, caps);
517 r = gst_pad_push (this->srcpad, buffer);
518 if (r != GST_FLOW_OK) {
519 GST_WARNING_OBJECT (this, "pushing queued GDP buffer returned %d", r);
525 gst_caps_unref (caps);
526 GST_DEBUG_OBJECT (this, "stop");
532 GST_ELEMENT_ERROR (this, STREAM, FORMAT, (NULL),
533 ("failed to create GDP buffer from streamheader"));
534 return GST_FLOW_ERROR;
538 /* queue a buffer internally if we haven't sent streamheader buffers yet;
539 * otherwise, just push on, this takes ownership of the buffer. */
541 gst_gdp_queue_buffer (GstGDPPay * this, GstBuffer * buffer)
543 if (this->sent_streamheader) {
544 GST_LOG_OBJECT (this, "Pushing GDP buffer %p, caps %" GST_PTR_FORMAT,
546 return gst_pad_push (this->srcpad, buffer);
549 /* store it on an internal queue. buffer remains reffed. */
550 this->queue = g_list_append (this->queue, buffer);
551 GST_DEBUG_OBJECT (this, "streamheader not sent yet, "
552 "queued buffer %p, now %d buffers queued",
553 buffer, g_list_length (this->queue));
559 gst_gdp_pay_chain (GstPad * pad, GstBuffer * buffer)
565 GstBuffer *outbuffer;
569 this = GST_GDP_PAY (gst_pad_get_parent (pad));
571 /* we should have received a new_segment before, otherwise it's a bug.
572 * fake one in that case */
573 if (!this->new_segment_buf) {
576 GST_WARNING_OBJECT (this,
577 "did not receive new-segment before first buffer");
578 event = gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_BYTES, 0, -1, 0);
579 outbuffer = gst_gdp_buffer_from_event (this, event);
580 gst_event_unref (event);
582 /* GDP 0.2 doesn't know about new-segment, so this is not fatal */
584 GST_ELEMENT_WARNING (this, STREAM, ENCODE, (NULL),
585 ("Could not create GDP buffer from new segment event"));
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 GST_DEBUG_OBJECT (this, "Storing buffer %p as new_segment_buf",
592 this->new_segment_buf = outbuffer;
596 /* make sure we've received caps before */
597 caps = gst_buffer_get_caps (buffer);
598 if (!this->caps && !caps)
601 /* if the caps have changed, process caps first */
602 if (caps && !gst_caps_is_equal (this->caps, caps)) {
603 GST_LOG_OBJECT (this, "caps changed to %p, %" GST_PTR_FORMAT, caps, caps);
604 gst_caps_replace (&(this->caps), caps);
605 outbuffer = gst_gdp_buffer_from_caps (this, caps);
609 GST_BUFFER_TIMESTAMP (outbuffer) = GST_BUFFER_TIMESTAMP (buffer);
610 GST_BUFFER_DURATION (outbuffer) = 0;
611 GST_BUFFER_FLAG_SET (outbuffer, GST_BUFFER_FLAG_IN_CAPS);
614 gst_buffer_unref (this->caps_buf);
615 this->caps_buf = outbuffer;
616 gst_gdp_pay_reset_streamheader (this);
620 gst_caps_unref (caps);
622 /* create a GDP header packet,
623 * then create a GST buffer of the header packet and the buffer contents */
624 outbuffer = gst_gdp_pay_buffer_from_buffer (this, buffer);
628 /* If the incoming buffer is IN_CAPS, that means we have it on the caps
629 * as streamheader, and we have serialized a GDP version of it and put it
631 if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_IN_CAPS)) {
632 GST_DEBUG_OBJECT (this, "Setting IN_CAPS flag on outgoing buffer %p",
634 GST_BUFFER_FLAG_SET (outbuffer, GST_BUFFER_FLAG_IN_CAPS);
637 gst_gdp_stamp_buffer (this, outbuffer);
638 GST_BUFFER_TIMESTAMP (outbuffer) = GST_BUFFER_TIMESTAMP (buffer);
639 GST_BUFFER_DURATION (outbuffer) = GST_BUFFER_DURATION (buffer);
641 ret = gst_gdp_queue_buffer (this, outbuffer);
644 gst_buffer_unref (buffer);
645 gst_object_unref (this);
651 /* when returning a fatal error as a GstFlowReturn we must post an error
653 GST_ELEMENT_ERROR (this, STREAM, FORMAT, (NULL),
654 ("first received buffer does not have caps set"));
656 gst_caps_unref (caps);
657 ret = GST_FLOW_NOT_NEGOTIATED;
662 GST_ELEMENT_ERROR (this, STREAM, ENCODE, (NULL),
663 ("Could not create GDP buffer from caps %" GST_PTR_FORMAT, caps));
664 gst_caps_unref (caps);
665 ret = GST_FLOW_ERROR;
670 GST_ELEMENT_ERROR (this, STREAM, ENCODE, (NULL),
671 ("Could not create GDP buffer from buffer"));
672 ret = GST_FLOW_ERROR;
678 gst_gdp_pay_sink_event (GstPad * pad, GstEvent * event)
680 GstBuffer *outbuffer;
682 GstGDPPay *this = GST_GDP_PAY (gst_pad_get_parent (pad));
684 GstFlowReturn flowret;
688 GST_DEBUG_OBJECT (this, "received event %p of type %s (%d)",
689 event, gst_event_type_get_name (event->type), event->type);
691 /* now turn the event into a buffer */
692 outbuffer = gst_gdp_buffer_from_event (this, event);
696 GST_BUFFER_TIMESTAMP (outbuffer) = GST_EVENT_TIMESTAMP (event);
697 GST_BUFFER_DURATION (outbuffer) = 0;
699 /* if we got a new segment or tag event, we should put it on our streamheader,
700 * and not send it on */
701 switch (GST_EVENT_TYPE (event)) {
702 case GST_EVENT_NEWSEGMENT:
703 GST_DEBUG_OBJECT (this, "Storing in caps buffer %p as new_segment_buf",
706 if (this->new_segment_buf)
707 gst_buffer_unref (this->new_segment_buf);
708 this->new_segment_buf = outbuffer;
710 GST_BUFFER_FLAG_SET (outbuffer, GST_BUFFER_FLAG_IN_CAPS);
711 gst_gdp_pay_reset_streamheader (this);
714 GST_DEBUG_OBJECT (this, "Storing in caps buffer %p as tag_buf",
718 gst_buffer_unref (this->tag_buf);
719 this->tag_buf = outbuffer;
721 GST_BUFFER_FLAG_SET (outbuffer, GST_BUFFER_FLAG_IN_CAPS);
722 gst_gdp_pay_reset_streamheader (this);
725 GST_DEBUG_OBJECT (this, "queuing GDP buffer %p of event %p", outbuffer,
727 flowret = gst_gdp_queue_buffer (this, outbuffer);
728 if (flowret != GST_FLOW_OK)
733 /* if we have EOS, we should send on EOS ourselves */
734 if (GST_EVENT_TYPE (event) == GST_EVENT_EOS) {
735 GST_DEBUG_OBJECT (this, "Sending on EOS event %p", event);
736 /* ref, we unref later again */
737 ret = gst_pad_push_event (this->srcpad, gst_event_ref (event));
741 gst_event_unref (event);
742 gst_object_unref (this);
749 GST_ELEMENT_WARNING (this, STREAM, ENCODE, (NULL),
750 ("Could not create GDP buffer from received event (type %s)",
751 gst_event_type_get_name (event->type)));
757 GST_WARNING_OBJECT (this, "queueing GDP event buffer returned %d", flowret);
764 gst_gdp_pay_src_event (GstPad * pad, GstEvent * event)
770 this = GST_GDP_PAY (gst_pad_get_parent (pad));
772 switch (GST_EVENT_TYPE (event)) {
774 /* we refuse seek for now. */
775 gst_event_unref (event);
779 case GST_EVENT_NAVIGATION:
781 /* everything else is passed */
782 res = gst_pad_push_event (this->sinkpad, event);
785 gst_object_unref (this);
791 gst_gdp_pay_set_property (GObject * object, guint prop_id,
792 const 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:
802 g_value_get_boolean (value) ? GST_DP_HEADER_FLAG_CRC_HEADER : 0;
803 this->header_flag = this->crc_header | this->crc_payload;
805 case PROP_CRC_PAYLOAD:
807 g_value_get_boolean (value) ? GST_DP_HEADER_FLAG_CRC_PAYLOAD : 0;
808 this->header_flag = this->crc_header | this->crc_payload;
811 this->version = g_value_get_enum (value);
814 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
820 gst_gdp_pay_get_property (GObject * object, guint prop_id,
821 GValue * value, GParamSpec * pspec)
825 g_return_if_fail (GST_IS_GDP_PAY (object));
826 this = GST_GDP_PAY (object);
829 case PROP_CRC_HEADER:
830 g_value_set_boolean (value, this->crc_header);
832 case PROP_CRC_PAYLOAD:
833 g_value_set_boolean (value, this->crc_payload);
836 g_value_set_enum (value, this->version);
839 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
844 static GstStateChangeReturn
845 gst_gdp_pay_change_state (GstElement * element, GstStateChange transition)
847 GstStateChangeReturn ret;
849 GstGDPPay *this = GST_GDP_PAY (element);
851 switch (transition) {
852 case GST_STATE_CHANGE_READY_TO_PAUSED:
858 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
860 switch (transition) {
861 case GST_STATE_CHANGE_PAUSED_TO_READY:
862 gst_gdp_pay_reset (this);
872 gst_gdp_pay_plugin_init (GstPlugin * plugin)
874 if (!gst_element_register (plugin, "gdppay", GST_RANK_NONE, GST_TYPE_GDP_PAY))