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)
126 GstElementFactory *fact;
129 /* we only care about element factories */
130 if (G_UNLIKELY (!GST_IS_ELEMENT_FACTORY (feature)))
133 if (gst_plugin_feature_get_rank (feature) < GST_RANK_MARGINAL)
136 fact = GST_ELEMENT_FACTORY_CAST (feature);
138 klass = gst_element_factory_get_klass (fact);
140 if (strstr (klass, "Decoder"))
141 list = &data->decode;
142 else if (strstr (klass, "Demux"))
144 else if (strstr (klass, "Parser") && strstr (klass, "Codec"))
146 else if (strstr (klass, "Payloader") && strstr (klass, "RTP"))
147 list = &data->payload;
150 GST_DEBUG ("adding %s", GST_OBJECT_NAME (fact));
151 *list = g_list_prepend (*list, fact);
158 gst_rtsp_media_factory_uri_init (GstRTSPMediaFactoryURI * factory)
160 FilterData data = { NULL, NULL, NULL };
162 factory->uri = g_strdup (DEFAULT_URI);
163 factory->use_gstpay = DEFAULT_USE_GSTPAY;
165 /* get the feature list using the filter */
166 gst_registry_feature_filter (gst_registry_get (), (GstPluginFeatureFilter)
167 payloader_filter, FALSE, &data);
170 g_list_sort (data.demux, gst_plugin_feature_rank_compare_func);
171 factory->payloaders =
172 g_list_sort (data.payload, gst_plugin_feature_rank_compare_func);
174 g_list_sort (data.decode, gst_plugin_feature_rank_compare_func);
176 factory->raw_vcaps = gst_static_caps_get (&raw_video_caps);
177 factory->raw_acaps = gst_static_caps_get (&raw_audio_caps);
181 gst_rtsp_media_factory_uri_finalize (GObject * obj)
183 GstRTSPMediaFactoryURI *factory = GST_RTSP_MEDIA_FACTORY_URI (obj);
185 g_free (factory->uri);
186 gst_plugin_feature_list_free (factory->demuxers);
187 gst_plugin_feature_list_free (factory->payloaders);
188 gst_plugin_feature_list_free (factory->decoders);
189 gst_caps_unref (factory->raw_vcaps);
190 gst_caps_unref (factory->raw_acaps);
192 G_OBJECT_CLASS (gst_rtsp_media_factory_uri_parent_class)->finalize (obj);
196 gst_rtsp_media_factory_uri_get_property (GObject * object, guint propid,
197 GValue * value, GParamSpec * pspec)
199 GstRTSPMediaFactoryURI *factory = GST_RTSP_MEDIA_FACTORY_URI (object);
203 g_value_take_string (value, gst_rtsp_media_factory_uri_get_uri (factory));
205 case PROP_USE_GSTPAY:
206 g_value_set_boolean (value, factory->use_gstpay);
209 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, propid, pspec);
214 gst_rtsp_media_factory_uri_set_property (GObject * object, guint propid,
215 const GValue * value, GParamSpec * pspec)
217 GstRTSPMediaFactoryURI *factory = GST_RTSP_MEDIA_FACTORY_URI (object);
221 gst_rtsp_media_factory_uri_set_uri (factory, g_value_get_string (value));
223 case PROP_USE_GSTPAY:
224 factory->use_gstpay = g_value_get_boolean (value);
227 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, propid, pspec);
232 * gst_rtsp_media_factory_uri_new:
234 * Create a new #GstRTSPMediaFactoryURI instance.
236 * Returns: a new #GstRTSPMediaFactoryURI object.
238 GstRTSPMediaFactoryURI *
239 gst_rtsp_media_factory_uri_new (void)
241 GstRTSPMediaFactoryURI *result;
243 result = g_object_new (GST_TYPE_RTSP_MEDIA_FACTORY_URI, NULL);
249 * gst_rtsp_media_factory_uri_set_uri:
250 * @factory: a #GstRTSPMediaFactory
251 * @uri: the uri the stream
253 * Set the URI of the resource that will be streamed by this factory.
256 gst_rtsp_media_factory_uri_set_uri (GstRTSPMediaFactoryURI * factory,
259 g_return_if_fail (GST_IS_RTSP_MEDIA_FACTORY_URI (factory));
260 g_return_if_fail (uri != NULL);
262 GST_RTSP_MEDIA_FACTORY_LOCK (factory);
263 g_free (factory->uri);
264 factory->uri = g_strdup (uri);
265 GST_RTSP_MEDIA_FACTORY_UNLOCK (factory);
269 * gst_rtsp_media_factory_uri_get_uri:
270 * @factory: a #GstRTSPMediaFactory
272 * Get the URI that will provide media for this factory.
274 * Returns: the configured URI. g_free() after usage.
277 gst_rtsp_media_factory_uri_get_uri (GstRTSPMediaFactoryURI * factory)
281 g_return_val_if_fail (GST_IS_RTSP_MEDIA_FACTORY_URI (factory), NULL);
283 GST_RTSP_MEDIA_FACTORY_LOCK (factory);
284 result = g_strdup (factory->uri);
285 GST_RTSP_MEDIA_FACTORY_UNLOCK (factory);
290 static GstElementFactory *
291 find_payloader (GstRTSPMediaFactoryURI * urifact, GstCaps * caps)
294 GstElementFactory *factory = NULL;
296 /* first find a demuxer that can link */
297 list = gst_element_factory_list_filter (urifact->demuxers, caps,
298 GST_PAD_SINK, FALSE);
301 /* we have a demuxer, try that one first */
302 gst_plugin_feature_list_free (list);
306 /* no demuxer try a depayloader */
307 list = gst_element_factory_list_filter (urifact->payloaders, caps,
308 GST_PAD_SINK, FALSE);
311 if (urifact->use_gstpay) {
312 /* no depayloader or parser/demuxer, use gstpay when allowed */
313 factory = gst_element_factory_find ("rtpgstpay");
315 /* no depayloader, try a decoder, we'll get to a payloader for a decoded
316 * video or audio format, worst case. */
317 list = gst_element_factory_list_filter (urifact->decoders, caps,
318 GST_PAD_SINK, FALSE);
321 /* we have a decoder, try that one first */
322 gst_plugin_feature_list_free (list);
329 factory = GST_ELEMENT_FACTORY_CAST (list->data);
330 g_object_ref (factory);
331 gst_plugin_feature_list_free (list);
337 autoplug_continue_cb (GstElement * uribin, GstPad * pad, GstCaps * caps,
338 GstElement * element)
342 GstElementFactory *factory;
345 GST_DEBUG ("found pad %s:%s of caps %" GST_PTR_FORMAT,
346 GST_DEBUG_PAD_NAME (pad), caps);
348 data = g_object_get_data (G_OBJECT (element), factory_key);
350 if (!(factory = find_payloader (data->factory, caps)))
353 /* we found a payloader, stop autoplugging so we can plug the
355 GST_DEBUG ("found factory %s",
356 gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
357 gst_object_unref (factory);
364 /* no payloader, continue autoplugging */
365 GST_DEBUG ("no payloader found");
371 pad_added_cb (GstElement * uribin, GstPad * pad, GstElement * element)
373 GstRTSPMediaFactoryURI *urifact;
375 GstElementFactory *factory;
376 GstElement *payloader;
378 GstPad *sinkpad, *srcpad, *ghostpad;
382 GST_DEBUG ("added pad %s:%s", GST_DEBUG_PAD_NAME (pad));
384 /* link the element now and expose the pad */
385 data = g_object_get_data (G_OBJECT (element), factory_key);
386 urifact = data->factory;
388 /* ref to make refcounting easier later */
389 gst_object_ref (pad);
390 padname = gst_pad_get_name (pad);
392 /* get pad caps first, then call get_caps, then fail */
393 if ((caps = gst_pad_get_current_caps (pad)) == NULL)
394 if ((caps = gst_pad_query_caps (pad, NULL)) == NULL)
397 /* check for raw caps */
398 if (gst_caps_can_intersect (caps, urifact->raw_vcaps)) {
399 /* we have raw video caps, insert converter */
400 convert = gst_element_factory_make ("videoconvert", NULL);
401 } else if (gst_caps_can_intersect (caps, urifact->raw_acaps)) {
402 /* we have raw audio caps, insert converter */
403 convert = gst_element_factory_make ("audioconvert", NULL);
409 gst_bin_add (GST_BIN_CAST (element), convert);
410 gst_element_set_state (convert, GST_STATE_PLAYING);
412 sinkpad = gst_element_get_static_pad (convert, "sink");
413 gst_pad_link (pad, sinkpad);
414 gst_object_unref (sinkpad);
416 /* unref old pad, we reffed before */
417 gst_object_unref (pad);
419 /* continue with new pad and caps */
420 pad = gst_element_get_static_pad (convert, "src");
421 if ((caps = gst_pad_get_current_caps (pad)) == NULL)
422 if ((caps = gst_pad_query_caps (pad, NULL)) == NULL)
426 if (!(factory = find_payloader (urifact, caps)))
429 gst_caps_unref (caps);
431 /* we have a payloader now */
432 GST_DEBUG ("found payloader factory %s",
433 gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
435 payloader = gst_element_factory_create (factory, NULL);
436 if (payloader == NULL)
439 g_object_set (payloader, "pt", data->pt, NULL);
442 if (g_object_class_find_property (G_OBJECT_GET_CLASS (payloader),
444 g_object_set (payloader, "buffer-list", TRUE, NULL);
446 /* add the payloader to the pipeline */
447 gst_bin_add (GST_BIN_CAST (element), payloader);
448 gst_element_set_state (payloader, GST_STATE_PLAYING);
450 /* link the pad to the sinkpad of the payloader */
451 sinkpad = gst_element_get_static_pad (payloader, "sink");
452 gst_pad_link (pad, sinkpad);
453 gst_object_unref (sinkpad);
454 gst_object_unref (pad);
456 /* now expose the srcpad of the payloader as a ghostpad with the same name
457 * as the uridecodebin pad name. */
458 srcpad = gst_element_get_static_pad (payloader, "src");
459 ghostpad = gst_ghost_pad_new (padname, srcpad);
460 gst_object_unref (srcpad);
463 gst_pad_set_active (ghostpad, TRUE);
464 gst_element_add_pad (element, ghostpad);
471 GST_WARNING ("could not get caps from pad");
473 gst_object_unref (pad);
478 GST_DEBUG ("no payloader found");
480 gst_caps_unref (caps);
481 gst_object_unref (pad);
486 GST_ERROR ("could not create payloader from factory");
488 gst_caps_unref (caps);
489 gst_object_unref (pad);
495 no_more_pads_cb (GstElement * uribin, GstElement * element)
497 GST_DEBUG ("no-more-pads");
498 gst_element_no_more_pads (element);
502 rtsp_media_factory_uri_get_element (GstRTSPMediaFactory * factory,
503 const GstRTSPUrl * url)
505 GstElement *topbin, *element, *uribin;
506 GstRTSPMediaFactoryURI *urifact;
509 urifact = GST_RTSP_MEDIA_FACTORY_URI_CAST (factory);
511 GST_LOG ("creating element");
513 topbin = gst_bin_new ("GstRTSPMediaFactoryURI");
514 g_assert (topbin != NULL);
516 /* our bin will dynamically expose payloaded pads */
517 element = gst_bin_new ("dynpay0");
518 g_assert (element != NULL);
520 uribin = gst_element_factory_make ("uridecodebin", "uribin");
522 goto no_uridecodebin;
524 g_object_set (uribin, "uri", urifact->uri, NULL);
526 /* keep factory data around */
527 data = g_new0 (FactoryData, 1);
528 data->factory = g_object_ref (factory);
531 g_object_set_data_full (G_OBJECT (element), factory_key,
532 data, (GDestroyNotify) free_data);
534 /* connect to the signals */
535 g_signal_connect (uribin, "autoplug-continue",
536 (GCallback) autoplug_continue_cb, element);
537 g_signal_connect (uribin, "pad-added", (GCallback) pad_added_cb, element);
538 g_signal_connect (uribin, "no-more-pads", (GCallback) no_more_pads_cb,
541 gst_bin_add (GST_BIN_CAST (element), uribin);
542 gst_bin_add (GST_BIN_CAST (topbin), element);
548 g_critical ("can't create uridecodebin element");
549 g_object_unref (element);