2 * Copyright (C) 2008 Wim Taymans <wim.taymans at gmail.com>
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.
22 #include "rtsp-media-factory-uri.h"
24 #define DEFAULT_URI NULL
25 #define DEFAULT_USE_GSTPAY FALSE
36 #define RAW_VIDEO_CAPS \
39 #define RAW_AUDIO_CAPS \
42 static GstStaticCaps raw_video_caps = GST_STATIC_CAPS (RAW_VIDEO_CAPS);
43 static GstStaticCaps raw_audio_caps = GST_STATIC_CAPS (RAW_AUDIO_CAPS);
47 GstRTSPMediaFactoryURI *factory;
52 free_data (FactoryData * data)
54 g_object_unref (data->factory);
58 static const gchar *factory_key = "GstRTSPMediaFactoryURI";
60 GST_DEBUG_CATEGORY_STATIC (rtsp_media_factory_uri_debug);
61 #define GST_CAT_DEFAULT rtsp_media_factory_uri_debug
63 static void gst_rtsp_media_factory_uri_get_property (GObject * object,
64 guint propid, GValue * value, GParamSpec * pspec);
65 static void gst_rtsp_media_factory_uri_set_property (GObject * object,
66 guint propid, const GValue * value, GParamSpec * pspec);
67 static void gst_rtsp_media_factory_uri_finalize (GObject * obj);
69 static GstElement *rtsp_media_factory_uri_get_element (GstRTSPMediaFactory *
70 factory, const GstRTSPUrl * url);
72 G_DEFINE_TYPE (GstRTSPMediaFactoryURI, gst_rtsp_media_factory_uri,
73 GST_TYPE_RTSP_MEDIA_FACTORY);
76 gst_rtsp_media_factory_uri_class_init (GstRTSPMediaFactoryURIClass * klass)
78 GObjectClass *gobject_class;
79 GstRTSPMediaFactoryClass *mediafactory_class;
81 gobject_class = G_OBJECT_CLASS (klass);
82 mediafactory_class = GST_RTSP_MEDIA_FACTORY_CLASS (klass);
84 gobject_class->get_property = gst_rtsp_media_factory_uri_get_property;
85 gobject_class->set_property = gst_rtsp_media_factory_uri_set_property;
86 gobject_class->finalize = gst_rtsp_media_factory_uri_finalize;
89 * GstRTSPMediaFactoryURI::uri
91 * The uri of the resource that will be served by this factory.
93 g_object_class_install_property (gobject_class, PROP_URI,
94 g_param_spec_string ("uri", "URI",
95 "The URI of the resource to stream", DEFAULT_URI,
96 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
98 * GstRTSPMediaFactoryURI::use-gstpay
100 * Allow the usage of gstpay in order to avoid decoding of compressed formats
101 * without a payloader.
103 g_object_class_install_property (gobject_class, PROP_USE_GSTPAY,
104 g_param_spec_boolean ("use-gstpay", "Use gstpay",
105 "Use the gstpay payloader to avoid decoding", DEFAULT_USE_GSTPAY,
106 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
108 mediafactory_class->get_element = rtsp_media_factory_uri_get_element;
110 GST_DEBUG_CATEGORY_INIT (rtsp_media_factory_uri_debug, "rtspmediafactoryuri",
111 0, "GstRTSPMediaFactoryUri");
122 payloader_filter (GstPluginFeature * feature, FilterData * data)
125 GstElementFactory *fact;
128 /* we only care about element factories */
129 if (G_UNLIKELY (!GST_IS_ELEMENT_FACTORY (feature)))
132 if (gst_plugin_feature_get_rank (feature) < GST_RANK_MARGINAL)
135 fact = GST_ELEMENT_FACTORY_CAST (feature);
137 klass = gst_element_factory_get_klass (fact);
139 if (strstr (klass, "Decoder"))
140 list = &data->decode;
141 else if (strstr (klass, "Demux"))
143 else if (strstr (klass, "Parser") && strstr (klass, "Codec"))
145 else if (strstr (klass, "Payloader") && strstr (klass, "RTP"))
146 list = &data->payload;
149 GST_DEBUG ("adding %s", GST_OBJECT_NAME (fact));
150 *list = g_list_prepend (*list, fact);
157 gst_rtsp_media_factory_uri_init (GstRTSPMediaFactoryURI * factory)
159 FilterData data = { NULL, NULL, NULL };
161 factory->uri = g_strdup (DEFAULT_URI);
162 factory->use_gstpay = DEFAULT_USE_GSTPAY;
164 /* get the feature list using the filter */
165 gst_registry_feature_filter (gst_registry_get (), (GstPluginFeatureFilter)
166 payloader_filter, FALSE, &data);
169 g_list_sort (data.demux, gst_plugin_feature_rank_compare_func);
170 factory->payloaders =
171 g_list_sort (data.payload, gst_plugin_feature_rank_compare_func);
173 g_list_sort (data.decode, gst_plugin_feature_rank_compare_func);
175 factory->raw_vcaps = gst_static_caps_get (&raw_video_caps);
176 factory->raw_acaps = gst_static_caps_get (&raw_audio_caps);
180 gst_rtsp_media_factory_uri_finalize (GObject * obj)
182 GstRTSPMediaFactoryURI *factory = GST_RTSP_MEDIA_FACTORY_URI (obj);
184 g_free (factory->uri);
185 gst_plugin_feature_list_free (factory->demuxers);
186 gst_plugin_feature_list_free (factory->payloaders);
187 gst_plugin_feature_list_free (factory->decoders);
188 gst_caps_unref (factory->raw_vcaps);
189 gst_caps_unref (factory->raw_acaps);
191 G_OBJECT_CLASS (gst_rtsp_media_factory_uri_parent_class)->finalize (obj);
195 gst_rtsp_media_factory_uri_get_property (GObject * object, guint propid,
196 GValue * value, GParamSpec * pspec)
198 GstRTSPMediaFactoryURI *factory = GST_RTSP_MEDIA_FACTORY_URI (object);
202 g_value_take_string (value, gst_rtsp_media_factory_uri_get_uri (factory));
204 case PROP_USE_GSTPAY:
205 g_value_set_boolean (value, factory->use_gstpay);
208 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, propid, pspec);
213 gst_rtsp_media_factory_uri_set_property (GObject * object, guint propid,
214 const GValue * value, GParamSpec * pspec)
216 GstRTSPMediaFactoryURI *factory = GST_RTSP_MEDIA_FACTORY_URI (object);
220 gst_rtsp_media_factory_uri_set_uri (factory, g_value_get_string (value));
222 case PROP_USE_GSTPAY:
223 factory->use_gstpay = g_value_get_boolean (value);
226 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, propid, pspec);
231 * gst_rtsp_media_factory_uri_new:
233 * Create a new #GstRTSPMediaFactoryURI instance.
235 * Returns: a new #GstRTSPMediaFactoryURI object.
237 GstRTSPMediaFactoryURI *
238 gst_rtsp_media_factory_uri_new (void)
240 GstRTSPMediaFactoryURI *result;
242 result = g_object_new (GST_TYPE_RTSP_MEDIA_FACTORY_URI, NULL);
248 * gst_rtsp_media_factory_uri_set_uri:
249 * @factory: a #GstRTSPMediaFactory
250 * @uri: the uri the stream
252 * Set the URI of the resource that will be streamed by this factory.
255 gst_rtsp_media_factory_uri_set_uri (GstRTSPMediaFactoryURI * factory,
258 g_return_if_fail (GST_IS_RTSP_MEDIA_FACTORY_URI (factory));
259 g_return_if_fail (uri != NULL);
261 GST_RTSP_MEDIA_FACTORY_LOCK (factory);
262 g_free (factory->uri);
263 factory->uri = g_strdup (uri);
264 GST_RTSP_MEDIA_FACTORY_UNLOCK (factory);
268 * gst_rtsp_media_factory_uri_get_uri:
269 * @factory: a #GstRTSPMediaFactory
271 * Get the URI that will provide media for this factory.
273 * Returns: the configured URI. g_free() after usage.
276 gst_rtsp_media_factory_uri_get_uri (GstRTSPMediaFactoryURI * factory)
280 g_return_val_if_fail (GST_IS_RTSP_MEDIA_FACTORY_URI (factory), NULL);
282 GST_RTSP_MEDIA_FACTORY_LOCK (factory);
283 result = g_strdup (factory->uri);
284 GST_RTSP_MEDIA_FACTORY_UNLOCK (factory);
289 static GstElementFactory *
290 find_payloader (GstRTSPMediaFactoryURI * urifact, GstCaps * caps)
293 GstElementFactory *factory = NULL;
295 /* first find a demuxer that can link */
296 list = gst_element_factory_list_filter (urifact->demuxers, caps,
297 GST_PAD_SINK, FALSE);
300 /* we have a demuxer, try that one first */
301 gst_plugin_feature_list_free (list);
305 /* no demuxer try a depayloader */
306 list = gst_element_factory_list_filter (urifact->payloaders, caps,
307 GST_PAD_SINK, FALSE);
310 if (urifact->use_gstpay) {
311 /* no depayloader or parser/demuxer, use gstpay when allowed */
312 factory = gst_element_factory_find ("rtpgstpay");
314 /* no depayloader, try a decoder, we'll get to a payloader for a decoded
315 * video or audio format, worst case. */
316 list = gst_element_factory_list_filter (urifact->decoders, caps,
317 GST_PAD_SINK, FALSE);
320 /* we have a decoder, try that one first */
321 gst_plugin_feature_list_free (list);
328 factory = GST_ELEMENT_FACTORY_CAST (list->data);
329 g_object_ref (factory);
330 gst_plugin_feature_list_free (list);
336 autoplug_continue_cb (GstElement * uribin, GstPad * pad, GstCaps * caps,
337 GstElement * element)
340 GstElementFactory *factory;
342 GST_DEBUG ("found pad %s:%s of caps %" GST_PTR_FORMAT,
343 GST_DEBUG_PAD_NAME (pad), caps);
345 data = g_object_get_data (G_OBJECT (element), factory_key);
347 if (!(factory = find_payloader (data->factory, caps)))
350 /* we found a payloader, stop autoplugging so we can plug the
352 GST_DEBUG ("found factory %s",
353 gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
354 gst_object_unref (factory);
361 /* no payloader, continue autoplugging */
362 GST_DEBUG ("no payloader found");
368 pad_added_cb (GstElement * uribin, GstPad * pad, GstElement * element)
370 GstRTSPMediaFactoryURI *urifact;
372 GstElementFactory *factory;
373 GstElement *payloader;
375 GstPad *sinkpad, *srcpad, *ghostpad;
379 GST_DEBUG ("added pad %s:%s", GST_DEBUG_PAD_NAME (pad));
381 /* link the element now and expose the pad */
382 data = g_object_get_data (G_OBJECT (element), factory_key);
383 urifact = data->factory;
385 /* ref to make refcounting easier later */
386 gst_object_ref (pad);
387 padname = gst_pad_get_name (pad);
389 /* get pad caps first, then call get_caps, then fail */
390 if ((caps = gst_pad_get_current_caps (pad)) == NULL)
391 if ((caps = gst_pad_query_caps (pad, NULL)) == NULL)
394 /* check for raw caps */
395 if (gst_caps_can_intersect (caps, urifact->raw_vcaps)) {
396 /* we have raw video caps, insert converter */
397 convert = gst_element_factory_make ("videoconvert", NULL);
398 } else if (gst_caps_can_intersect (caps, urifact->raw_acaps)) {
399 /* we have raw audio caps, insert converter */
400 convert = gst_element_factory_make ("audioconvert", NULL);
406 gst_bin_add (GST_BIN_CAST (element), convert);
407 gst_element_set_state (convert, GST_STATE_PLAYING);
409 sinkpad = gst_element_get_static_pad (convert, "sink");
410 gst_pad_link (pad, sinkpad);
411 gst_object_unref (sinkpad);
413 /* unref old pad, we reffed before */
414 gst_object_unref (pad);
416 /* continue with new pad and caps */
417 pad = gst_element_get_static_pad (convert, "src");
418 if ((caps = gst_pad_get_current_caps (pad)) == NULL)
419 if ((caps = gst_pad_query_caps (pad, NULL)) == NULL)
423 if (!(factory = find_payloader (urifact, caps)))
426 gst_caps_unref (caps);
428 /* we have a payloader now */
429 GST_DEBUG ("found payloader factory %s",
430 gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
432 payloader = gst_element_factory_create (factory, NULL);
433 if (payloader == NULL)
436 g_object_set (payloader, "pt", data->pt, NULL);
439 if (g_object_class_find_property (G_OBJECT_GET_CLASS (payloader),
441 g_object_set (payloader, "buffer-list", TRUE, NULL);
443 /* add the payloader to the pipeline */
444 gst_bin_add (GST_BIN_CAST (element), payloader);
445 gst_element_set_state (payloader, GST_STATE_PLAYING);
447 /* link the pad to the sinkpad of the payloader */
448 sinkpad = gst_element_get_static_pad (payloader, "sink");
449 gst_pad_link (pad, sinkpad);
450 gst_object_unref (sinkpad);
451 gst_object_unref (pad);
453 /* now expose the srcpad of the payloader as a ghostpad with the same name
454 * as the uridecodebin pad name. */
455 srcpad = gst_element_get_static_pad (payloader, "src");
456 ghostpad = gst_ghost_pad_new (padname, srcpad);
457 gst_object_unref (srcpad);
460 gst_pad_set_active (ghostpad, TRUE);
461 gst_element_add_pad (element, ghostpad);
468 GST_WARNING ("could not get caps from pad");
470 gst_object_unref (pad);
475 GST_DEBUG ("no payloader found");
477 gst_caps_unref (caps);
478 gst_object_unref (pad);
483 GST_ERROR ("could not create payloader from factory");
485 gst_caps_unref (caps);
486 gst_object_unref (pad);
492 no_more_pads_cb (GstElement * uribin, GstElement * element)
494 GST_DEBUG ("no-more-pads");
495 gst_element_no_more_pads (element);
499 rtsp_media_factory_uri_get_element (GstRTSPMediaFactory * factory,
500 const GstRTSPUrl * url)
502 GstElement *topbin, *element, *uribin;
503 GstRTSPMediaFactoryURI *urifact;
506 urifact = GST_RTSP_MEDIA_FACTORY_URI_CAST (factory);
508 GST_LOG ("creating element");
510 topbin = gst_bin_new ("GstRTSPMediaFactoryURI");
511 g_assert (topbin != NULL);
513 /* our bin will dynamically expose payloaded pads */
514 element = gst_bin_new ("dynpay0");
515 g_assert (element != NULL);
517 uribin = gst_element_factory_make ("uridecodebin", "uribin");
519 goto no_uridecodebin;
521 g_object_set (uribin, "uri", urifact->uri, NULL);
523 /* keep factory data around */
524 data = g_new0 (FactoryData, 1);
525 data->factory = g_object_ref (factory);
528 g_object_set_data_full (G_OBJECT (element), factory_key,
529 data, (GDestroyNotify) free_data);
531 /* connect to the signals */
532 g_signal_connect (uribin, "autoplug-continue",
533 (GCallback) autoplug_continue_cb, element);
534 g_signal_connect (uribin, "pad-added", (GCallback) pad_added_cb, element);
535 g_signal_connect (uribin, "no-more-pads", (GCallback) no_more_pads_cb,
538 gst_bin_add (GST_BIN_CAST (element), uribin);
539 gst_bin_add (GST_BIN_CAST (topbin), element);
545 g_critical ("can't create uridecodebin element");
546 g_object_unref (element);