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 "dataprotocol.h"
41 #include "gstgdppay.h"
43 static GstStaticPadTemplate gdp_pay_sink_template =
44 GST_STATIC_PAD_TEMPLATE ("sink",
49 static GstStaticPadTemplate gdp_pay_src_template =
50 GST_STATIC_PAD_TEMPLATE ("src",
53 GST_STATIC_CAPS ("application/x-gdp"));
55 GST_DEBUG_CATEGORY_STATIC (gst_gdp_pay_debug);
56 #define GST_CAT_DEFAULT gst_gdp_pay_debug
58 #define DEFAULT_CRC_HEADER TRUE
59 #define DEFAULT_CRC_PAYLOAD FALSE
60 #define DEFAULT_VERSION GST_DP_VERSION_1_0
71 GST_DEBUG_CATEGORY_INIT (gst_gdp_pay_debug, "gdppay", 0, \
73 #define gst_gdp_pay_parent_class parent_class
74 G_DEFINE_TYPE_WITH_CODE (GstGDPPay, gst_gdp_pay, GST_TYPE_ELEMENT, _do_init);
76 static void gst_gdp_pay_reset (GstGDPPay * this);
78 static GstFlowReturn gst_gdp_pay_chain (GstPad * pad, GstObject * parent,
80 static gboolean gst_gdp_pay_src_event (GstPad * pad, GstObject * parent,
82 static gboolean gst_gdp_pay_sink_event (GstPad * pad, GstObject * parent,
85 static GstStateChangeReturn gst_gdp_pay_change_state (GstElement *
86 element, GstStateChange transition);
88 static void gst_gdp_pay_set_property (GObject * object, guint prop_id,
89 const GValue * value, GParamSpec * pspec);
90 static void gst_gdp_pay_get_property (GObject * object, guint prop_id,
91 GValue * value, GParamSpec * pspec);
93 static void gst_gdp_pay_finalize (GObject * gobject);
96 gst_gdp_pay_class_init (GstGDPPayClass * klass)
98 GObjectClass *gobject_class;
99 GstElementClass *gstelement_class;
101 gobject_class = (GObjectClass *) klass;
102 gstelement_class = (GstElementClass *) klass;
104 gobject_class->set_property = gst_gdp_pay_set_property;
105 gobject_class->get_property = gst_gdp_pay_get_property;
106 gobject_class->finalize = gst_gdp_pay_finalize;
108 g_object_class_install_property (gobject_class, PROP_CRC_HEADER,
109 g_param_spec_boolean ("crc-header", "CRC Header",
110 "Calculate and store a CRC checksum on the header",
111 DEFAULT_CRC_HEADER, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
112 g_object_class_install_property (gobject_class, PROP_CRC_PAYLOAD,
113 g_param_spec_boolean ("crc-payload", "CRC Payload",
114 "Calculate and store a CRC checksum on the payload",
115 DEFAULT_CRC_PAYLOAD, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
116 g_object_class_install_property (gobject_class, PROP_VERSION,
117 g_param_spec_enum ("version", "Version",
118 "Version of the GStreamer Data Protocol",
119 GST_TYPE_DP_VERSION, DEFAULT_VERSION,
120 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
122 gst_element_class_set_details_simple (gstelement_class,
123 "GDP Payloader", "GDP/Payloader",
124 "Payloads GStreamer Data Protocol buffers",
125 "Thomas Vander Stichele <thomas at apestaart dot org>");
127 gst_element_class_add_pad_template (gstelement_class,
128 gst_static_pad_template_get (&gdp_pay_sink_template));
129 gst_element_class_add_pad_template (gstelement_class,
130 gst_static_pad_template_get (&gdp_pay_src_template));
132 gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_gdp_pay_change_state);
136 gst_gdp_pay_init (GstGDPPay * gdppay)
139 gst_pad_new_from_static_template (&gdp_pay_sink_template, "sink");
140 gst_pad_set_chain_function (gdppay->sinkpad,
141 GST_DEBUG_FUNCPTR (gst_gdp_pay_chain));
142 gst_pad_set_event_function (gdppay->sinkpad,
143 GST_DEBUG_FUNCPTR (gst_gdp_pay_sink_event));
144 gst_element_add_pad (GST_ELEMENT (gdppay), gdppay->sinkpad);
147 gst_pad_new_from_static_template (&gdp_pay_src_template, "src");
148 gst_pad_set_event_function (gdppay->srcpad,
149 GST_DEBUG_FUNCPTR (gst_gdp_pay_src_event));
150 gst_element_add_pad (GST_ELEMENT (gdppay), gdppay->srcpad);
152 gdppay->crc_header = DEFAULT_CRC_HEADER;
153 gdppay->crc_payload = DEFAULT_CRC_PAYLOAD;
154 gdppay->header_flag = gdppay->crc_header | gdppay->crc_payload;
155 gdppay->version = DEFAULT_VERSION;
158 gdppay->packetizer = gst_dp_packetizer_new (gdppay->version);
162 gst_gdp_pay_finalize (GObject * gobject)
164 GstGDPPay *this = GST_GDP_PAY (gobject);
166 gst_gdp_pay_reset (this);
167 gst_dp_packetizer_free (this->packetizer);
169 GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (gobject));
173 gst_gdp_pay_reset (GstGDPPay * this)
175 GST_DEBUG_OBJECT (this, "Resetting GDP object");
176 /* clear the queued buffers */
177 while (this->queue) {
180 buffer = GST_BUFFER_CAST (this->queue->data);
182 /* delete buffer from queue now */
183 this->queue = g_list_delete_link (this->queue, this->queue);
185 gst_buffer_unref (buffer);
188 gst_caps_unref (this->caps);
191 if (this->caps_buf) {
192 gst_buffer_unref (this->caps_buf);
193 this->caps_buf = NULL;
196 gst_buffer_unref (this->tag_buf);
197 this->tag_buf = NULL;
199 if (this->new_segment_buf) {
200 gst_buffer_unref (this->new_segment_buf);
201 this->new_segment_buf = NULL;
203 this->sent_streamheader = FALSE;
207 /* set OFFSET and OFFSET_END with running count */
209 gst_gdp_stamp_buffer (GstGDPPay * this, GstBuffer * buffer)
211 GST_BUFFER_OFFSET (buffer) = this->offset;
212 GST_BUFFER_OFFSET_END (buffer) = this->offset + gst_buffer_get_size (buffer);
213 this->offset = GST_BUFFER_OFFSET_END (buffer);
217 gst_gdp_buffer_from_caps (GstGDPPay * this, GstCaps * caps)
219 GstBuffer *headerbuf;
220 GstBuffer *payloadbuf;
221 guint8 *header, *payload;
224 if (!this->packetizer->packet_from_caps (caps, this->header_flag, &len,
228 GST_LOG_OBJECT (this, "creating GDP header and payload buffer from caps");
229 headerbuf = gst_buffer_new_wrapped (header, len);
231 plen = gst_dp_header_payload_length (header);
232 payloadbuf = gst_buffer_new_wrapped (payload, plen);
234 return gst_buffer_append (headerbuf, payloadbuf);
239 GST_WARNING_OBJECT (this, "could not create GDP header from caps");
245 gst_gdp_pay_buffer_from_buffer (GstGDPPay * this, GstBuffer * buffer)
247 GstBuffer *headerbuf;
251 if (!this->packetizer->header_from_buffer (buffer, this->header_flag, &len,
255 GST_LOG_OBJECT (this, "creating GDP header and payload buffer from buffer");
256 headerbuf = gst_buffer_new_wrapped (header, len);
258 /* we do not want to lose the ref on the incoming buffer */
259 gst_buffer_ref (buffer);
261 return gst_buffer_append (headerbuf, buffer);
266 GST_WARNING_OBJECT (this, "could not create GDP header from buffer");
272 gst_gdp_buffer_from_event (GstGDPPay * this, GstEvent * event)
274 GstBuffer *headerbuf;
275 GstBuffer *payloadbuf;
276 guint8 *header, *payload;
281 this->packetizer->packet_from_event (event, this->header_flag, &len,
286 GST_LOG_OBJECT (this, "creating GDP header and payload buffer from event");
287 headerbuf = gst_buffer_new_wrapped (header, len);
289 payloadbuf = gst_buffer_new ();
290 plen = gst_dp_header_payload_length (header);
291 if (plen && payload != NULL) {
292 gst_buffer_append_memory (payloadbuf,
293 gst_memory_new_wrapped (0, payload, plen, 0, plen, payload, g_free));
296 return gst_buffer_append (headerbuf, payloadbuf);
301 GST_WARNING_OBJECT (this, "could not create GDP header from event %s (%d)",
302 gst_event_type_get_name (event->type), event->type);
308 /* set our caps with streamheader, based on the latest newsegment and caps,
309 * and (possibly) GDP-serialized buffers of the streamheaders on the src pad */
311 gst_gdp_pay_reset_streamheader (GstGDPPay * this)
314 /* We use copies of these to avoid circular refcounts */
315 GstBuffer *new_segment_buf, *caps_buf, *tag_buf;
316 GstStructure *structure;
317 GstFlowReturn r = GST_FLOW_OK;
318 gboolean version_one_zero = TRUE;
320 GValue array = { 0 };
321 GValue value = { 0 };
323 GST_DEBUG_OBJECT (this, "start");
324 /* In version 0.2, we didn't need or send new segment or tags */
325 if (this->version == GST_DP_VERSION_0_2)
326 version_one_zero = FALSE;
328 if (version_one_zero) {
329 if (!this->new_segment_buf || !this->caps_buf) {
330 GST_DEBUG_OBJECT (this, "1.0, missing new_segment or caps, returning");
334 if (!this->caps_buf) {
335 GST_DEBUG_OBJECT (this, "0.2, missing caps, returning");
340 /* put copies of the buffers in a fixed list
341 * Stamp the buffers with offset and offset_end as well.
342 * We do this here so the offsets match the order the buffers go out in */
343 g_value_init (&array, GST_TYPE_ARRAY);
345 if (version_one_zero) {
346 gst_gdp_stamp_buffer (this, this->new_segment_buf);
347 GST_DEBUG_OBJECT (this, "1.0, appending copy of new segment buffer %p",
348 this->new_segment_buf);
349 new_segment_buf = gst_buffer_copy (this->new_segment_buf);
350 g_value_init (&value, GST_TYPE_BUFFER);
351 gst_value_set_buffer (&value, new_segment_buf);
352 gst_value_array_append_value (&array, &value);
353 g_value_unset (&value);
354 gst_buffer_unref (new_segment_buf);
357 gst_gdp_stamp_buffer (this, this->tag_buf);
358 GST_DEBUG_OBJECT (this, "1.0, appending current tags buffer %p",
360 tag_buf = this->tag_buf;
361 this->tag_buf = NULL;
363 g_value_init (&value, GST_TYPE_BUFFER);
364 gst_value_set_buffer (&value, tag_buf);
365 gst_value_array_append_value (&array, &value);
366 g_value_unset (&value);
367 gst_buffer_unref (tag_buf);
371 gst_gdp_stamp_buffer (this, this->caps_buf);
372 GST_DEBUG_OBJECT (this, "appending copy of caps buffer %p", this->caps_buf);
373 caps_buf = gst_buffer_copy (this->caps_buf);
374 g_value_init (&value, GST_TYPE_BUFFER);
375 gst_value_set_buffer (&value, caps_buf);
376 gst_value_array_append_value (&array, &value);
377 g_value_unset (&value);
378 gst_buffer_unref (caps_buf);
380 /* we also need to add GDP serializations of the streamheaders of the
382 structure = gst_caps_get_structure (this->caps, 0);
383 if (gst_structure_has_field (structure, "streamheader")) {
392 sh = gst_structure_get_value (structure, "streamheader");
393 buffers = g_value_peek_pointer (sh);
394 GST_DEBUG_OBJECT (this,
395 "Need to serialize %d incoming streamheader buffers on ours",
397 for (i = 0; i < buffers->len; ++i) {
400 GstBuffer *outbuffer;
402 bufval = &g_array_index (buffers, GValue, i);
403 buffer = g_value_peek_pointer (bufval);
404 /* this buffer is deserialized by gdpdepay as a regular buffer,
405 it needs HEADER, because it's a streamheader - otherwise it
406 is mixed with regular data buffers */
407 GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_HEADER);
408 GST_BUFFER_OFFSET (buffer) = GST_BUFFER_OFFSET_NONE;
409 GST_BUFFER_OFFSET_END (buffer) = GST_BUFFER_OFFSET_NONE;
410 GST_BUFFER_TIMESTAMP (buffer) = GST_CLOCK_TIME_NONE;
412 outbuffer = gst_gdp_pay_buffer_from_buffer (this, buffer);
414 g_value_unset (&array);
418 /* Setting HEADER as other GDP event buffers */
419 GST_DEBUG_OBJECT (this,
420 "Setting HEADER flag on outgoing buffer %" GST_PTR_FORMAT, outbuffer);
421 GST_BUFFER_FLAG_SET (outbuffer, GST_BUFFER_FLAG_HEADER);
422 GST_BUFFER_OFFSET (outbuffer) = GST_BUFFER_OFFSET_NONE;
423 GST_BUFFER_OFFSET_END (outbuffer) = GST_BUFFER_OFFSET_NONE;
424 GST_BUFFER_TIMESTAMP (outbuffer) = GST_CLOCK_TIME_NONE;
426 g_value_init (&value, GST_TYPE_BUFFER);
427 gst_value_set_buffer (&value, outbuffer);
428 gst_value_array_append_value (&array, &value);
429 g_value_unset (&value);
431 gst_buffer_unref (outbuffer);
434 GST_DEBUG_OBJECT (this, "no streamheader to serialize");
437 GST_DEBUG_OBJECT (this, "%d serialized buffers on streamheaders",
438 gst_value_array_get_size (&array));
439 caps = gst_caps_from_string ("application/x-gdp");
440 structure = gst_caps_get_structure (caps, 0);
442 gst_structure_set_value (structure, "streamheader", &array);
443 g_value_unset (&array);
445 GST_DEBUG_OBJECT (this, "Setting caps on src pad %" GST_PTR_FORMAT, caps);
446 gst_pad_set_caps (this->srcpad, caps);
448 /* if these are our first ever buffers, send out new_segment first */
449 if (!this->sent_streamheader) {
453 gst_segment_init (&segment, GST_FORMAT_BYTES);
454 event = gst_event_new_segment (&segment);
456 GST_DEBUG_OBJECT (this, "Sending out new_segment event %p", event);
457 if (!gst_pad_push_event (this->srcpad, event)) {
458 GST_WARNING_OBJECT (this, "pushing new segment failed");
464 /* push out these streamheader buffers, then flush our internal queue */
465 GST_DEBUG_OBJECT (this, "Pushing GDP new_segment buffer %p with offset %"
466 G_GINT64_FORMAT ", offset_end %" G_GINT64_FORMAT, this->new_segment_buf,
467 GST_BUFFER_OFFSET (this->new_segment_buf),
468 GST_BUFFER_OFFSET_END (this->new_segment_buf));
469 /* we stored these bufs with refcount 1, so make sure we keep a ref */
470 r = gst_pad_push (this->srcpad, gst_buffer_ref (this->new_segment_buf));
471 if (r != GST_FLOW_OK) {
472 GST_WARNING_OBJECT (this, "pushing GDP newsegment buffer returned %d", r);
476 GST_DEBUG_OBJECT (this, "Pushing GDP tag buffer %p", this->tag_buf);
477 /* we stored these bufs with refcount 1, so make sure we keep a ref */
478 r = gst_pad_push (this->srcpad, gst_buffer_ref (this->tag_buf));
479 if (r != GST_FLOW_OK) {
480 GST_WARNING_OBJECT (this, "pushing GDP tag buffer returned %d", r);
484 GST_DEBUG_OBJECT (this, "Pushing GDP caps buffer %p", this->caps_buf);
485 r = gst_pad_push (this->srcpad, gst_buffer_ref (this->caps_buf));
486 if (r != GST_FLOW_OK) {
487 GST_WARNING_OBJECT (this, "pushing GDP caps buffer returned %d", r);
490 this->sent_streamheader = TRUE;
491 GST_DEBUG_OBJECT (this, "need to push %d queued buffers",
492 g_list_length (this->queue));
493 while (this->queue) {
496 buffer = GST_BUFFER_CAST (this->queue->data);
497 GST_DEBUG_OBJECT (this, "Pushing queued GDP buffer %p", buffer);
499 /* delete buffer from queue now */
500 this->queue = g_list_delete_link (this->queue, this->queue);
502 /* set caps and push */
503 r = gst_pad_push (this->srcpad, buffer);
504 if (r != GST_FLOW_OK) {
505 GST_WARNING_OBJECT (this, "pushing queued GDP buffer returned %d", r);
511 gst_caps_unref (caps);
512 GST_DEBUG_OBJECT (this, "stop");
518 GST_ELEMENT_ERROR (this, STREAM, FORMAT, (NULL),
519 ("failed to create GDP buffer from streamheader"));
520 return GST_FLOW_ERROR;
524 /* queue a buffer internally if we haven't sent streamheader buffers yet;
525 * otherwise, just push on, this takes ownership of the buffer. */
527 gst_gdp_queue_buffer (GstGDPPay * this, GstBuffer * buffer)
529 if (this->sent_streamheader) {
530 GST_LOG_OBJECT (this, "Pushing GDP buffer %p, caps %" GST_PTR_FORMAT,
532 return gst_pad_push (this->srcpad, buffer);
535 /* store it on an internal queue. buffer remains reffed. */
536 this->queue = g_list_append (this->queue, buffer);
537 GST_DEBUG_OBJECT (this, "streamheader not sent yet, "
538 "queued buffer %p, now %d buffers queued",
539 buffer, g_list_length (this->queue));
541 gst_gdp_pay_reset_streamheader (this);
547 gst_gdp_pay_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
553 GstBuffer *outbuffer;
556 this = GST_GDP_PAY (parent);
558 /* we should have received a new_segment before, otherwise it's a bug.
559 * fake one in that case */
560 if (!this->new_segment_buf) {
564 GST_WARNING_OBJECT (this,
565 "did not receive new-segment before first buffer");
566 gst_segment_init (&segment, GST_FORMAT_BYTES);
567 event = gst_event_new_segment (&segment);
568 outbuffer = gst_gdp_buffer_from_event (this, event);
569 gst_event_unref (event);
571 /* GDP 0.2 doesn't know about new-segment, so this is not fatal */
573 GST_ELEMENT_WARNING (this, STREAM, ENCODE, (NULL),
574 ("Could not create GDP buffer from new segment event"));
576 GST_BUFFER_TIMESTAMP (outbuffer) = GST_BUFFER_TIMESTAMP (buffer);
577 GST_BUFFER_DURATION (outbuffer) = 0;
578 GST_BUFFER_FLAG_SET (outbuffer, GST_BUFFER_FLAG_HEADER);
579 GST_DEBUG_OBJECT (this, "Storing buffer %p as new_segment_buf",
581 this->new_segment_buf = outbuffer;
584 /* make sure we've received caps before */
588 /* create a GDP header packet,
589 * then create a GST buffer of the header packet and the buffer contents */
590 outbuffer = gst_gdp_pay_buffer_from_buffer (this, buffer);
594 /* If the incoming buffer is HEADER, that means we have it on the caps
595 * as streamheader, and we have serialized a GDP version of it and put it
597 if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_HEADER)) {
598 GST_DEBUG_OBJECT (this, "Setting HEADER flag on outgoing buffer %p",
600 GST_BUFFER_FLAG_SET (outbuffer, GST_BUFFER_FLAG_HEADER);
603 gst_gdp_stamp_buffer (this, outbuffer);
604 GST_BUFFER_TIMESTAMP (outbuffer) = GST_BUFFER_TIMESTAMP (buffer);
605 GST_BUFFER_DURATION (outbuffer) = GST_BUFFER_DURATION (buffer);
607 ret = gst_gdp_queue_buffer (this, outbuffer);
610 gst_buffer_unref (buffer);
617 /* when returning a fatal error as a GstFlowReturn we must post an error
619 GST_ELEMENT_ERROR (this, STREAM, FORMAT, (NULL),
620 ("first received buffer does not have caps set"));
621 ret = GST_FLOW_NOT_NEGOTIATED;
627 GST_ELEMENT_ERROR (this, STREAM, ENCODE, (NULL),
628 ("Could not create GDP buffer from caps %" GST_PTR_FORMAT, caps));
629 gst_caps_unref (caps);
630 ret = GST_FLOW_ERROR;
636 GST_ELEMENT_ERROR (this, STREAM, ENCODE, (NULL),
637 ("Could not create GDP buffer from buffer"));
638 ret = GST_FLOW_ERROR;
644 gst_gdp_pay_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
646 GstBuffer *outbuffer;
647 GstGDPPay *this = GST_GDP_PAY (parent);
648 GstFlowReturn flowret;
652 GST_DEBUG_OBJECT (this, "received event %p of type %s (%d)",
653 event, gst_event_type_get_name (event->type), event->type);
655 /* now turn the event into a buffer */
656 outbuffer = gst_gdp_buffer_from_event (this, event);
660 GST_BUFFER_TIMESTAMP (outbuffer) = GST_EVENT_TIMESTAMP (event);
661 GST_BUFFER_DURATION (outbuffer) = 0;
663 /* if we got a new segment or tag event, we should put it on our streamheader,
664 * and not send it on */
665 switch (GST_EVENT_TYPE (event)) {
666 case GST_EVENT_SEGMENT:
667 GST_DEBUG_OBJECT (this, "Storing in caps buffer %p as new_segment_buf",
670 if (this->new_segment_buf)
671 gst_buffer_unref (this->new_segment_buf);
672 this->new_segment_buf = outbuffer;
674 GST_BUFFER_FLAG_SET (outbuffer, GST_BUFFER_FLAG_HEADER);
675 gst_gdp_pay_reset_streamheader (this);
677 case GST_EVENT_CAPS:{
678 gst_event_parse_caps (event, &caps);
679 if (this->caps == NULL || !gst_caps_is_equal (this->caps, caps)) {
680 GST_INFO_OBJECT (pad, "caps changed to %" GST_PTR_FORMAT, caps);
681 gst_caps_replace (&this->caps, caps);
682 outbuffer = gst_gdp_buffer_from_caps (this, caps);
683 if (outbuffer == NULL)
684 goto no_buffer_from_caps;
686 GST_BUFFER_DURATION (outbuffer) = 0;
687 GST_BUFFER_FLAG_SET (outbuffer, GST_BUFFER_FLAG_HEADER);
689 gst_buffer_unref (this->caps_buf);
690 this->caps_buf = outbuffer;
691 gst_gdp_pay_reset_streamheader (this);
696 GST_DEBUG_OBJECT (this, "Storing in caps buffer %p as tag_buf",
700 gst_buffer_unref (this->tag_buf);
701 this->tag_buf = outbuffer;
703 GST_BUFFER_FLAG_SET (outbuffer, GST_BUFFER_FLAG_HEADER);
704 gst_gdp_pay_reset_streamheader (this);
707 GST_DEBUG_OBJECT (this, "queuing GDP buffer %p of event %p", outbuffer,
709 flowret = gst_gdp_queue_buffer (this, outbuffer);
710 if (flowret != GST_FLOW_OK)
715 /* if we have EOS, we should send on EOS ourselves */
716 if (GST_EVENT_TYPE (event) == GST_EVENT_EOS) {
717 GST_DEBUG_OBJECT (this, "Sending on EOS event %p", event);
718 /* ref, we unref later again */
719 ret = gst_pad_push_event (this->srcpad, gst_event_ref (event));
723 gst_event_unref (event);
730 GST_ELEMENT_WARNING (this, STREAM, ENCODE, (NULL),
731 ("Could not create GDP buffer from received event (type %s)",
732 gst_event_type_get_name (event->type)));
738 GST_ELEMENT_ERROR (this, STREAM, ENCODE, (NULL),
739 ("Could not create GDP buffer from caps %" GST_PTR_FORMAT, caps));
745 GST_WARNING_OBJECT (this, "queueing GDP event buffer returned %d", flowret);
752 gst_gdp_pay_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
757 this = GST_GDP_PAY (parent);
759 switch (GST_EVENT_TYPE (event)) {
761 /* we refuse seek for now. */
762 gst_event_unref (event);
766 case GST_EVENT_NAVIGATION:
768 /* everything else is passed */
769 res = gst_pad_push_event (this->sinkpad, event);
777 gst_gdp_pay_set_property (GObject * object, guint prop_id,
778 const 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:
788 g_value_get_boolean (value) ? GST_DP_HEADER_FLAG_CRC_HEADER : 0;
789 this->header_flag = this->crc_header | this->crc_payload;
791 case PROP_CRC_PAYLOAD:
793 g_value_get_boolean (value) ? GST_DP_HEADER_FLAG_CRC_PAYLOAD : 0;
794 this->header_flag = this->crc_header | this->crc_payload;
797 this->version = g_value_get_enum (value);
800 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
806 gst_gdp_pay_get_property (GObject * object, guint prop_id,
807 GValue * value, GParamSpec * pspec)
811 g_return_if_fail (GST_IS_GDP_PAY (object));
812 this = GST_GDP_PAY (object);
815 case PROP_CRC_HEADER:
816 g_value_set_boolean (value, this->crc_header);
818 case PROP_CRC_PAYLOAD:
819 g_value_set_boolean (value, this->crc_payload);
822 g_value_set_enum (value, this->version);
825 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
830 static GstStateChangeReturn
831 gst_gdp_pay_change_state (GstElement * element, GstStateChange transition)
833 GstStateChangeReturn ret;
834 GstGDPPay *this = GST_GDP_PAY (element);
836 switch (transition) {
837 case GST_STATE_CHANGE_READY_TO_PAUSED:
843 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
845 switch (transition) {
846 case GST_STATE_CHANGE_PAUSED_TO_READY:
847 gst_gdp_pay_reset (this);
857 gst_gdp_pay_plugin_init (GstPlugin * plugin)
859 if (!gst_element_register (plugin, "gdppay", GST_RANK_NONE, GST_TYPE_GDP_PAY))