1 /*
2 * GStreamer
3 * Copyright (c) 2010, Texas Instruments Incorporated
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation
8 * version 2.1 of the License.
9 *
10 * This library 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 GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 */
20 #ifdef HAVE_CONFIG_H
21 # include <config.h>
22 #endif
24 #include <gst/gst.h>
25 #include <gst/video/video.h>
27 #include "gstducatividdec.h"
29 GST_BOILERPLATE (GstDucatiVidDec, gst_ducati_viddec, GstElement,
30 GST_TYPE_ELEMENT);
32 static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
33 GST_PAD_SRC,
34 GST_PAD_ALWAYS,
35 GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV_STRIDED ("NV12", "[ 0, max ]"))
36 );
38 /* helper functions */
40 static void
41 engine_close (GstDucatiVidDec * self)
42 {
43 if (self->engine) {
44 Engine_close (self->engine);
45 self->engine = NULL;
46 }
48 if (self->params) {
49 dce_free (self->params);
50 self->params = NULL;
51 }
53 if (self->dynParams) {
54 dce_free (self->dynParams);
55 self->dynParams = NULL;
56 }
58 if (self->status) {
59 dce_free (self->status);
60 self->status = NULL;
61 }
63 if (self->inBufs) {
64 dce_free (self->inBufs);
65 self->inBufs = NULL;
66 }
68 if (self->outBufs) {
69 dce_free (self->outBufs);
70 self->outBufs = NULL;
71 }
73 if (self->inArgs) {
74 dce_free (self->inArgs);
75 self->inArgs = NULL;
76 }
78 if (self->outArgs) {
79 dce_free (self->outArgs);
80 self->outArgs = NULL;
81 }
82 }
84 static gboolean
85 engine_open (GstDucatiVidDec * self)
86 {
87 gboolean ret;
89 if (G_UNLIKELY (self->engine)) {
90 return TRUE;
91 }
93 GST_DEBUG_OBJECT (self, "opening engine");
95 self->engine = Engine_open ("ivahd_vidsvr", NULL, NULL);
96 if (G_UNLIKELY (!self->engine)) {
97 GST_ERROR_OBJECT (self, "could not create engine");
98 return FALSE;
99 }
101 ret = GST_DUCATIVIDDEC_GET_CLASS (self)->allocate_params (self,
102 sizeof (IVIDDEC3_Params), sizeof (IVIDDEC3_DynamicParams),
103 sizeof (IVIDDEC3_Status), sizeof (IVIDDEC3_InArgs),
104 sizeof (IVIDDEC3_OutArgs));
106 return ret;
107 }
109 static void
110 codec_delete (GstDucatiVidDec * self)
111 {
112 if (self->codec) {
113 //XXX this crashes ducati:
114 //VIDDEC3_delete(self->codec);
115 self->codec = NULL;
116 }
118 if (self->input) {
119 MemMgr_Free (self->input);
120 self->input = NULL;
121 }
122 }
124 static gboolean
125 codec_create (GstDucatiVidDec * self)
126 {
127 gint err;
128 const gchar *codec_name;
130 codec_delete (self);
132 if (G_UNLIKELY (!self->engine)) {
133 GST_ERROR_OBJECT (self, "no engine");
134 return FALSE;
135 }
137 /* these need to be set before VIDDEC3_create */
138 self->params->maxWidth = (self->width + 15) & ~0xf; /* round up to MB */
139 self->params->maxHeight = (self->height + 15) & ~0xf; /* round up to MB */
141 codec_name = GST_DUCATIVIDDEC_GET_CLASS (self)->codec_name;
143 /* create codec: */
144 GST_DEBUG_OBJECT (self, "creating codec: %s", codec_name);
145 self->codec = VIDDEC3_create (self->engine, (char *)codec_name, self->params);
147 if (!self->codec) {
148 return FALSE;
149 }
151 err = VIDDEC3_control (self->codec, XDM_SETPARAMS, self->dynParams, self->status);
152 if (err) {
153 GST_ERROR_OBJECT (self, "failed XDM_SETPARAMS");
154 return FALSE;
155 }
157 #if 0
158 /* not entirely sure why we need to call this here.. just copying omx.. */
159 err = VIDDEC3_control(self->codec, XDM_GETBUFINFO, self->dynParams, self->status);
160 if (err) {
161 GST_ERROR_OBJECT (self, "failed XDM_GETBUFINFO");
162 return FALSE;
163 }
164 #endif
166 self->first_in_buffer = TRUE;
167 self->first_out_buffer = TRUE;
169 /* allocate input buffer and initialize inBufs: */
170 self->inBufs->numBufs = 1;
171 self->input = gst_ducati_alloc_1d (self->width * self->height);
172 self->inBufs->descs[0].buf = (XDAS_Int8 *) TilerMem_VirtToPhys (self->input);
173 self->inBufs->descs[0].memType = XDM_MEMTYPE_RAW;
175 return TRUE;
176 }
178 static XDAS_Int32
179 codec_prepare_outbuf (GstDucatiVidDec * self, GstBuffer * buf)
180 {
181 XDAS_Int16 y_type, uv_type;
182 guint8 *y_vaddr, *uv_vaddr;
183 SSPtr y_paddr, uv_paddr;
185 y_vaddr = GST_BUFFER_DATA (buf);
186 uv_vaddr = y_vaddr + self->stride * self->padded_height;
188 y_paddr = TilerMem_VirtToPhys (y_vaddr);
189 uv_paddr = TilerMem_VirtToPhys (uv_vaddr);
191 y_type = gst_ducati_get_mem_type (y_paddr);
192 uv_type = gst_ducati_get_mem_type (uv_paddr);
194 if ((y_type < 0) || (uv_type < 0)) {
195 return 0;
196 }
198 if (!self->outBufs->numBufs) {
199 /* initialize output buffer type */
200 self->outBufs->numBufs = 2;
201 self->outBufs->descs[0].memType = y_type;
202 self->outBufs->descs[0].bufSize.tileMem.width = self->padded_width;
203 self->outBufs->descs[0].bufSize.tileMem.height = self->padded_height;
204 self->outBufs->descs[1].memType = uv_type;
205 /* note that UV interleaved width is same a Y: */
206 self->outBufs->descs[1].bufSize.tileMem.width = self->padded_width;
207 self->outBufs->descs[1].bufSize.tileMem.height = self->padded_height / 2;
208 } else {
209 /* verify output buffer type matches what we've already given
210 * to the codec
211 */
212 // TODO
213 }
215 self->outBufs->descs[0].buf = (XDAS_Int8 *) y_paddr;
216 self->outBufs->descs[1].buf = (XDAS_Int8 *) uv_paddr;
218 return (XDAS_Int32) buf; // XXX use lookup table
219 }
221 static GstBuffer *
222 codec_get_outbuf (GstDucatiVidDec * self, XDAS_Int32 id)
223 {
224 GstBuffer *buf = (GstBuffer *) id; // XXX use lookup table
225 if (buf) {
226 gst_buffer_ref (buf);
227 }
228 return buf;
229 }
231 static void
232 codec_unlock_outbuf (GstDucatiVidDec * self, XDAS_Int32 id)
233 {
234 GstBuffer *buf = (GstBuffer *) id; // XXX use lookup table
235 if (buf) {
236 gst_buffer_unref (buf);
237 }
238 }
240 static gint
241 codec_process (GstDucatiVidDec * self, gboolean send)
242 {
243 gint err;
244 GstClockTime t;
245 GstBuffer *outbuf = NULL;
246 gint i;
248 t = gst_util_get_timestamp ();
249 err = VIDDEC3_process (self->codec,
250 self->inBufs, self->outBufs, self->inArgs, self->outArgs);
251 GST_INFO_OBJECT (self, "%10dns", (gint) (gst_util_get_timestamp () - t));
252 if (err) {
253 return err;
254 }
256 for (i = 0; self->outArgs->outputID[i]; i++) {
257 if (G_UNLIKELY (self->first_out_buffer) && send) {
258 /* send region of interest to sink on first buffer: */
259 XDM_Rect *r = &(self->outArgs->displayBufs.bufDesc[0].activeFrameRegion);
261 gst_pad_push_event (self->srcpad,
262 gst_event_new_crop (r->topLeft.y, r->topLeft.x,
263 r->bottomRight.x - r->topLeft.x,
264 r->bottomRight.y - r->topLeft.y));
266 self->first_out_buffer = FALSE;
267 }
269 outbuf = codec_get_outbuf (self, self->outArgs->outputID[i]);
270 if (send) {
271 gst_pad_push (self->srcpad, outbuf);
272 } else {
273 gst_buffer_unref (outbuf);
274 }
275 }
277 for (i = 0; self->outArgs->freeBufID[i]; i++) {
278 codec_unlock_outbuf (self, self->outArgs->freeBufID[i]);
279 }
281 return err;
282 }
284 /** call control(FLUSH), and then process() to pop out all buffers */
285 static gboolean
286 codec_flush (GstDucatiVidDec * self, gboolean eos)
287 {
288 gint err;
290 GST_DEBUG_OBJECT (self, "flush: eos=%d", eos);
292 if (G_UNLIKELY (self->first_in_buffer)) {
293 return TRUE;
294 }
296 if (G_UNLIKELY (!self->codec)) {
297 GST_WARNING_OBJECT (self, "no codec");
298 return TRUE;
299 }
301 err = VIDDEC3_control (self->codec, XDM_FLUSH,
302 self->dynParams, self->status);
303 if (err) {
304 GST_ERROR_OBJECT (self, "failed XDM_FLUSH");
305 return FALSE;
306 }
308 do {
309 err = codec_process (self, eos);
310 } while (err != XDM_EFAIL);
312 self->first_in_buffer = TRUE;
314 GST_DEBUG_OBJECT (self, "done");
316 return TRUE;
317 }
319 /* GstDucatiVidDec vmethod default implementations */
321 static gboolean
322 gst_ducati_viddec_allocate_params (GstDucatiVidDec * self, gint params_sz,
323 gint dynparams_sz, gint status_sz, gint inargs_sz, gint outargs_sz)
324 {
326 /* allocate params: */
327 self->params = dce_alloc (params_sz);
328 if (G_UNLIKELY (!self->params)) {
329 return FALSE;
330 }
331 self->params->size = params_sz;
332 self->params->maxFrameRate = 30000;
333 self->params->maxBitRate = 10000000;
335 //vc1:
336 //self->params->maxBitRate = 45000000;
337 //vc6/vc7/rv??
339 self->params->dataEndianness = XDM_BYTE;
340 self->params->forceChromaFormat = XDM_YUV_420SP;
341 self->params->operatingMode = IVIDEO_DECODE_ONLY;
343 //vc1:
344 //self->params->displayDelay = IVIDDEC3_DISPLAY_DELAY_1;
346 self->params->displayBufsMode = IVIDDEC3_DISPLAYBUFS_EMBEDDED;
347 self->params->inputDataMode = IVIDEO_ENTIREFRAME;
348 self->params->outputDataMode = IVIDEO_ENTIREFRAME;
349 self->params->numInputDataUnits = 0;
350 self->params->numOutputDataUnits = 0;
352 //vp6, vp7:
353 //self->params->numInputDataUnits = 1;
354 //self->params->numOutputDataUnits = 1;
356 self->params->metadataType[0] = IVIDEO_METADATAPLANE_NONE;
357 self->params->metadataType[1] = IVIDEO_METADATAPLANE_NONE;
358 self->params->metadataType[2] = IVIDEO_METADATAPLANE_NONE;
359 self->params->errorInfoMode = IVIDEO_ERRORINFO_OFF;
361 /* allocate dynParams: */
362 self->dynParams = dce_alloc (dynparams_sz);
363 if (G_UNLIKELY (!self->dynParams)) {
364 return FALSE;
365 }
366 self->dynParams->size = dynparams_sz;
367 self->dynParams->decodeHeader = XDM_DECODE_AU;
368 self->dynParams->displayWidth = 0;
369 self->dynParams->frameSkipMode = IVIDEO_NO_SKIP;
370 self->dynParams->newFrameFlag = XDAS_TRUE;
372 /* allocate status: */
373 self->status = dce_alloc (status_sz);
374 if (G_UNLIKELY (!self->status)) {
375 return FALSE;
376 }
377 self->status->size = status_sz;
379 /* allocate inBufs/outBufs: */
380 self->inBufs = dce_alloc (sizeof (XDM2_BufDesc));
381 self->outBufs = dce_alloc (sizeof (XDM2_BufDesc));
382 if (G_UNLIKELY (!self->inBufs) || G_UNLIKELY (!self->outBufs)) {
383 return FALSE;
384 }
386 /* allocate inArgs/outArgs: */
387 self->inArgs = dce_alloc (inargs_sz);
388 self->outArgs = dce_alloc (outargs_sz);
389 if (G_UNLIKELY (!self->inArgs) || G_UNLIKELY (!self->outArgs)) {
390 return FALSE;
391 }
392 self->inArgs->size = inargs_sz;
393 self->outArgs->size = outargs_sz;
394 }
396 static inline void
397 push_input (GstDucatiVidDec * self, GstBuffer * buf)
398 {
399 gint sz = GST_BUFFER_SIZE (buf);
400 GST_DEBUG_OBJECT (self, "push: %d bytes)", sz);
401 memcpy (self->input + self->in_size, GST_BUFFER_DATA (buf), sz);
402 self->in_size += sz;
403 }
405 static GstBuffer *
406 gst_ducati_viddec_push_input (GstDucatiVidDec * self, GstBuffer * buf)
407 {
408 gint sz;
410 if (self->first_in_buffer && self->codec_data) {
411 push_input (self, self->codec_data);
412 }
414 /* just copy entire buffer */
415 push_input (self, buf);
416 gst_buffer_unref (buf);
418 return NULL;
419 }
421 /* GstElement vmethod implementations */
423 static gboolean
424 gst_ducati_viddec_set_caps (GstPad * pad, GstCaps * caps)
425 {
426 gboolean ret = TRUE;
427 GstDucatiVidDec *self = GST_DUCATIVIDDEC (gst_pad_get_parent (pad));
428 GstStructure *s;
430 g_return_val_if_fail (caps, FALSE);
431 g_return_val_if_fail (gst_caps_is_fixed (caps), FALSE);
433 s = gst_caps_get_structure (caps, 0);
435 if (pad == self->sinkpad) {
436 gint width, height, frn, frd;
437 GST_INFO_OBJECT (self, "setcaps (sink): %" GST_PTR_FORMAT, caps);
439 if (gst_structure_get_int (s, "width", &width) &&
440 gst_structure_get_int (s, "height", &height) &&
441 gst_structure_get_fraction (s, "framerate", &frn, &frd)) {
442 const GValue *codec_data;
443 GstCaps *outcaps;
445 /* ok, these caps seem sane.. grab the required values and construct
446 * appropriate output caps
447 */
448 self->width = width;
449 self->height = height;
450 self->stride = 4096; /* TODO: don't hardcode */
452 codec_data = gst_structure_get_value (s, "codec_data");
453 if (codec_data) {
454 GstBuffer *buffer = gst_value_get_buffer (codec_data);
455 GST_DEBUG_OBJECT (self, "codec_data: %" GST_PTR_FORMAT, buffer);
456 self->codec_data = gst_buffer_ref (buffer);
457 }
459 /* update output/padded sizes:
460 */
461 GST_DUCATIVIDDEC_GET_CLASS (self)->update_buffer_size (self);
463 self->outsize =
464 GST_ROUND_UP_2 (self->stride * self->padded_height * 3) / 2;
466 outcaps = gst_caps_new_simple ("video/x-raw-yuv-strided",
467 "rowstride", G_TYPE_INT, self->stride,
468 "format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('N','V','1','2'),
469 "width", G_TYPE_INT, self->padded_width,
470 "height", G_TYPE_INT, self->padded_height,
471 "framerate", GST_TYPE_FRACTION, frn, frd,
472 NULL);
474 GST_DEBUG_OBJECT (self, "outcaps: %" GST_PTR_FORMAT, outcaps);
476 ret = gst_pad_set_caps (self->srcpad, outcaps);
477 gst_caps_unref (outcaps);
479 if (!ret) {
480 GST_WARNING_OBJECT (self, "failed to set caps");
481 return FALSE;
482 }
483 } else {
484 GST_WARNING_OBJECT (self, "missing required fields");
485 return FALSE;
486 }
487 } else {
488 GST_INFO_OBJECT (self, "setcaps (src): %" GST_PTR_FORMAT, caps);
489 // XXX check to make sure caps are ok.. keep track if we
490 // XXX need to handle unstrided buffers..
491 GST_WARNING_OBJECT (self, "TODO");
492 }
494 gst_object_unref (self);
496 return gst_pad_set_caps (pad, caps);
497 }
499 static gboolean
500 gst_ducati_viddec_query (GstPad * pad, GstQuery * query)
501 {
502 GstDucatiVidDec *self = GST_DUCATIVIDDEC (GST_OBJECT_PARENT (pad));
504 switch (GST_QUERY_TYPE (query)) {
505 case GST_QUERY_BUFFERS:
506 GST_DEBUG_OBJECT (self, "min buffers: %d", self->min_buffers);
507 gst_query_set_buffers_count (query, self->min_buffers);
509 GST_DEBUG_OBJECT (self, "min dimensions: %dx%d",
510 self->padded_width, self->padded_height);
511 gst_query_set_buffers_dimensions (query,
512 self->padded_width, self->padded_height);
513 return TRUE;
514 default:
515 return FALSE;
516 }
517 }
519 static GstFlowReturn
520 gst_ducati_viddec_chain (GstPad * pad, GstBuffer * buf)
521 {
522 GstDucatiVidDec *self = GST_DUCATIVIDDEC (GST_OBJECT_PARENT (pad));
523 GstFlowReturn ret;
524 Int32 err;
525 GstBuffer *outbuf = NULL;
527 if (G_UNLIKELY (!self->engine)) {
528 GST_ERROR_OBJECT (self, "no engine");
529 return GST_FLOW_ERROR;
530 }
532 /* do this before creating codec to ensure reverse caps negotiation
533 * happens first:
534 */
535 ret = gst_pad_alloc_buffer_and_set_caps (self->srcpad, 0, self->outsize,
536 GST_PAD_CAPS (self->srcpad), &outbuf);
538 if (ret != GST_FLOW_OK) {
539 /* TODO: if we had our own buffer class, we could allocate our own
540 * output buffer from TILER...
541 */
542 GST_WARNING_OBJECT (self, "ret=%d", ret);
543 GST_WARNING_OBJECT (self, "TODO: allocate output TILER buffer");
544 return ret;
545 }
547 if (G_UNLIKELY (!self->codec)) {
548 if (!codec_create (self)) {
549 GST_ERROR_OBJECT (self, "could not create codec");
550 return GST_FLOW_ERROR;
551 }
552 }
554 GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
555 GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buf);
557 /* pass new output buffer as to the decoder to decode into: */
558 self->inArgs->inputID = codec_prepare_outbuf (self, outbuf);
559 if (!self->inArgs->inputID) {
560 GST_ERROR_OBJECT (self, "could not prepare output buffer");
561 return GST_FLOW_ERROR;
562 }
564 self->in_size = 0;
565 buf = GST_DUCATIVIDDEC_GET_CLASS (self)->push_input (self, buf);
566 self->inArgs->numBytes = self->in_size;
567 self->inBufs->descs[0].bufSize.bytes = self->in_size;
569 if (buf) {
570 // XXX
571 GST_WARNING_OBJECT (self, "TODO.. can't push more than one.. need loop");
572 gst_buffer_unref (buf);
573 buf = NULL;
574 }
576 err = codec_process (self, TRUE);
577 if (err) {
578 GST_ERROR_OBJECT (self, "process returned error: %d %08x",
579 err, self->outArgs->extendedError);
580 return GST_FLOW_ERROR;
581 }
583 self->first_in_buffer = FALSE;
585 if (self->outArgs->outBufsInUseFlag) {
586 GST_WARNING_OBJECT (self, "TODO... outBufsInUseFlag"); // XXX
587 }
589 return GST_FLOW_OK;
590 }
592 static gboolean
593 gst_ducati_viddec_event (GstPad * pad, GstEvent * event)
594 {
595 GstDucatiVidDec *self = GST_DUCATIVIDDEC (GST_OBJECT_PARENT (pad));
596 gboolean ret = TRUE;
597 gboolean eos = FALSE;
599 GST_INFO_OBJECT (self, "begin: event=%s", GST_EVENT_TYPE_NAME (event));
601 switch (GST_EVENT_TYPE (event)) {
602 case GST_EVENT_EOS:
603 eos = TRUE;
604 /* fall-through */
605 case GST_EVENT_FLUSH_STOP:
606 if (!codec_flush (self, eos)) {
607 GST_ERROR_OBJECT (self, "could not flush");
608 return FALSE;
609 }
610 /* fall-through */
611 default:
612 ret = gst_pad_push_event (self->srcpad, event);
613 break;
614 }
616 GST_LOG_OBJECT (self, "end");
618 return ret;
619 }
621 static GstStateChangeReturn
622 gst_ducati_viddec_change_state (GstElement * element,
623 GstStateChange transition)
624 {
625 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
626 GstDucatiVidDec *self = GST_DUCATIVIDDEC (element);
628 GST_INFO_OBJECT (self, "begin: changing state %s -> %s",
629 gst_element_state_get_name (GST_STATE_TRANSITION_CURRENT (transition)),
630 gst_element_state_get_name (GST_STATE_TRANSITION_NEXT (transition)));
632 switch (transition) {
633 case GST_STATE_CHANGE_NULL_TO_READY:
634 if (!engine_open (self)) {
635 GST_ERROR_OBJECT (self, "could not open");
636 return GST_STATE_CHANGE_FAILURE;
637 }
638 break;
639 default:
640 break;
641 }
643 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
645 if (ret == GST_STATE_CHANGE_FAILURE)
646 goto leave;
648 switch (transition) {
649 case GST_STATE_CHANGE_READY_TO_NULL:
650 codec_delete (self);
651 engine_close (self);
652 break;
653 default:
654 break;
655 }
657 leave:
658 GST_LOG_OBJECT (self, "end");
660 return ret;
661 }
663 /* GObject vmethod implementations */
665 static void
666 gst_ducati_viddec_finalize (GObject * obj)
667 {
668 GstDucatiVidDec *self = GST_DUCATIVIDDEC (obj);
670 codec_delete (self);
671 engine_close (self);
673 if (self->codec_data) {
674 gst_buffer_unref (self->codec_data);
675 self->codec_data = NULL;
676 }
678 G_OBJECT_CLASS (parent_class)->finalize (obj);
679 }
681 static void
682 gst_ducati_viddec_base_init (gpointer gclass)
683 {
684 GstElementClass *element_class = GST_ELEMENT_CLASS (gclass);
686 gst_element_class_add_pad_template (element_class,
687 gst_static_pad_template_get (&src_factory));
688 }
690 static void
691 gst_ducati_viddec_class_init (GstDucatiVidDecClass * klass)
692 {
693 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
694 GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
696 gobject_class->finalize = gst_ducati_viddec_finalize;
697 gstelement_class->change_state = gst_ducati_viddec_change_state;
699 klass->allocate_params =
700 GST_DEBUG_FUNCPTR (gst_ducati_viddec_allocate_params);
701 klass->push_input =
702 GST_DEBUG_FUNCPTR (gst_ducati_viddec_push_input);
703 }
705 static void
706 gst_ducati_viddec_init (GstDucatiVidDec * self, GstDucatiVidDecClass * klass)
707 {
708 GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
710 self->sinkpad = gst_pad_new_from_template (
711 gst_element_class_get_pad_template (gstelement_class, "sink"), "sink");
712 gst_pad_set_setcaps_function (self->sinkpad,
713 GST_DEBUG_FUNCPTR (gst_ducati_viddec_set_caps));
714 gst_pad_set_chain_function (self->sinkpad,
715 GST_DEBUG_FUNCPTR (gst_ducati_viddec_chain));
716 gst_pad_set_event_function (self->sinkpad,
717 GST_DEBUG_FUNCPTR (gst_ducati_viddec_event));
719 self->srcpad = gst_pad_new_from_static_template (&src_factory, "src");
720 gst_pad_set_setcaps_function (self->srcpad,
721 GST_DEBUG_FUNCPTR (gst_ducati_viddec_set_caps));
722 gst_pad_set_query_function (self->srcpad,
723 GST_DEBUG_FUNCPTR (gst_ducati_viddec_query));
725 gst_element_add_pad (GST_ELEMENT (self), self->sinkpad);
726 gst_element_add_pad (GST_ELEMENT (self), self->srcpad);
727 }