2 * Copyright (C) <2007> Wim Taymans <wim.taymans@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.
21 * SECTION:element-uridecodebin
23 * Decodes data from a URI into raw media. It selects a source element that can
24 * handle the given #GstURIDecodeBin:uri scheme and connects it to a decodebin.
34 #include <gst/gst-i18n-plugin.h>
35 #include <gst/pbutils/missing-plugins.h>
37 #include "gstplay-marshal.h"
38 #include "gstplay-enum.h"
39 #include "gstrawcaps.h"
40 #include "gstplayback.h"
42 #define GST_TYPE_URI_DECODE_BIN \
43 (gst_uri_decode_bin_get_type())
44 #define GST_URI_DECODE_BIN(obj) \
45 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_URI_DECODE_BIN,GstURIDecodeBin))
46 #define GST_URI_DECODE_BIN_CLASS(klass) \
47 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_URI_DECODE_BIN,GstURIDecodeBinClass))
48 #define GST_IS_URI_DECODE_BIN(obj) \
49 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_URI_DECODE_BIN))
50 #define GST_IS_URI_DECODE_BIN_CLASS(klass) \
51 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_URI_DECODE_BIN))
52 #define GST_URI_DECODE_BIN_CAST(obj) ((GstURIDecodeBin *) (obj))
54 typedef struct _GstURIDecodeBin GstURIDecodeBin;
55 typedef struct _GstURIDecodeBinClass GstURIDecodeBinClass;
57 #define GST_URI_DECODE_BIN_GET_LOCK(dec) (((GstURIDecodeBin*)(dec))->lock)
58 #define GST_URI_DECODE_BIN_LOCK(dec) (g_mutex_lock(GST_URI_DECODE_BIN_GET_LOCK(dec)))
59 #define GST_URI_DECODE_BIN_UNLOCK(dec) (g_mutex_unlock(GST_URI_DECODE_BIN_GET_LOCK(dec)))
61 typedef struct _GstURIDecodeBinStream
65 } GstURIDecodeBinStream;
70 * uridecodebin element struct
72 struct _GstURIDecodeBin
74 GstBin parent_instance;
76 GMutex *lock; /* lock for constructing */
78 GMutex *factories_lock;
79 guint32 factories_cookie;
80 GList *factories; /* factories we can use for selecting elements */
83 guint connection_speed;
90 guint64 buffer_duration; /* When buffering, buffer duration (ns) */
91 guint buffer_size; /* When buffering, buffer size (bytes) */
93 gboolean use_buffering;
98 guint have_type_id; /* have-type signal id from typefind */
100 GSList *pending_decodebins;
104 /* for dynamic sources */
105 guint src_np_sig_id; /* new-pad signal id */
106 guint src_nmp_sig_id; /* no-more-pads signal id */
109 gboolean async_pending; /* async-start has been emited */
111 gboolean expose_allstreams; /* Whether to expose unknow type streams or not */
113 guint64 ring_buffer_max_size; /* 0 means disabled */
116 struct _GstURIDecodeBinClass
118 GstBinClass parent_class;
120 /* signal fired when we found a pad that we cannot decode */
121 void (*unknown_type) (GstElement * element, GstPad * pad, GstCaps * caps);
123 /* signal fired to know if we continue trying to decode the given caps */
124 gboolean (*autoplug_continue) (GstElement * element, GstPad * pad,
126 /* signal fired to get a list of factories to try to autoplug */
127 GValueArray *(*autoplug_factories) (GstElement * element, GstPad * pad,
129 /* signal fired to sort the factories */
130 GValueArray *(*autoplug_sort) (GstElement * element, GstPad * pad,
131 GstCaps * caps, GValueArray * factories);
132 /* signal fired to select from the proposed list of factories */
133 GstAutoplugSelectResult (*autoplug_select) (GstElement * element,
134 GstPad * pad, GstCaps * caps, GstElementFactory * factory);
136 /* emited when all data is decoded */
137 void (*drained) (GstElement * element);
140 static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src_%u",
143 GST_STATIC_CAPS_ANY);
145 static GstStaticCaps default_raw_caps = GST_STATIC_CAPS (DEFAULT_RAW_CAPS);
147 GST_DEBUG_CATEGORY_STATIC (gst_uri_decode_bin_debug);
148 #define GST_CAT_DEFAULT gst_uri_decode_bin_debug
154 SIGNAL_AUTOPLUG_CONTINUE,
155 SIGNAL_AUTOPLUG_FACTORIES,
156 SIGNAL_AUTOPLUG_SELECT,
158 SIGNAL_AUTOPLUG_SORT,
164 #define DEFAULT_PROP_URI NULL
165 #define DEFAULT_PROP_SOURCE NULL
166 #define DEFAULT_CONNECTION_SPEED 0
167 #define DEFAULT_CAPS (gst_static_caps_get (&default_raw_caps))
168 #define DEFAULT_SUBTITLE_ENCODING NULL
169 #define DEFAULT_BUFFER_DURATION -1
170 #define DEFAULT_BUFFER_SIZE -1
171 #define DEFAULT_DOWNLOAD FALSE
172 #define DEFAULT_USE_BUFFERING FALSE
173 #define DEFAULT_EXPOSE_ALL_STREAMS TRUE
174 #define DEFAULT_RING_BUFFER_MAX_SIZE 0
181 PROP_CONNECTION_SPEED,
183 PROP_SUBTITLE_ENCODING,
185 PROP_BUFFER_DURATION,
188 PROP_EXPOSE_ALL_STREAMS,
189 PROP_RING_BUFFER_MAX_SIZE,
193 static guint gst_uri_decode_bin_signals[LAST_SIGNAL] = { 0 };
195 GType gst_uri_decode_bin_get_type (void);
196 #define gst_uri_decode_bin_parent_class parent_class
197 G_DEFINE_TYPE (GstURIDecodeBin, gst_uri_decode_bin, GST_TYPE_BIN);
199 static void remove_decoders (GstURIDecodeBin * bin, gboolean force);
200 static void gst_uri_decode_bin_set_property (GObject * object, guint prop_id,
201 const GValue * value, GParamSpec * pspec);
202 static void gst_uri_decode_bin_get_property (GObject * object, guint prop_id,
203 GValue * value, GParamSpec * pspec);
204 static void gst_uri_decode_bin_finalize (GObject * obj);
206 static void handle_message (GstBin * bin, GstMessage * msg);
208 static gboolean gst_uri_decode_bin_query (GstElement * element,
210 static GstStateChangeReturn gst_uri_decode_bin_change_state (GstElement *
211 element, GstStateChange transition);
214 _gst_boolean_accumulator (GSignalInvocationHint * ihint,
215 GValue * return_accu, const GValue * handler_return, gpointer dummy)
219 myboolean = g_value_get_boolean (handler_return);
220 if (!(ihint->run_type & G_SIGNAL_RUN_CLEANUP))
221 g_value_set_boolean (return_accu, myboolean);
223 /* stop emission if FALSE */
228 _gst_array_accumulator (GSignalInvocationHint * ihint,
229 GValue * return_accu, const GValue * handler_return, gpointer dummy)
233 array = g_value_get_boxed (handler_return);
234 if (!(ihint->run_type & G_SIGNAL_RUN_CLEANUP))
235 g_value_set_boxed (return_accu, array);
241 _gst_select_accumulator (GSignalInvocationHint * ihint,
242 GValue * return_accu, const GValue * handler_return, gpointer dummy)
244 GstAutoplugSelectResult res;
246 res = g_value_get_enum (handler_return);
247 if (!(ihint->run_type & G_SIGNAL_RUN_CLEANUP))
248 g_value_set_enum (return_accu, res);
254 _gst_array_hasvalue_accumulator (GSignalInvocationHint * ihint,
255 GValue * return_accu, const GValue * handler_return, gpointer dummy)
259 array = g_value_get_boxed (handler_return);
260 if (!(ihint->run_type & G_SIGNAL_RUN_CLEANUP))
261 g_value_set_boxed (return_accu, array);
270 gst_uri_decode_bin_autoplug_continue (GstElement * element, GstPad * pad,
273 /* by default we always continue */
277 /* Must be called with factories lock! */
279 gst_uri_decode_bin_update_factories_list (GstURIDecodeBin * dec)
281 if (!dec->factories ||
282 dec->factories_cookie !=
283 gst_default_registry_get_feature_list_cookie ()) {
285 gst_plugin_feature_list_free (dec->factories);
287 gst_element_factory_list_get_elements
288 (GST_ELEMENT_FACTORY_TYPE_DECODABLE, GST_RANK_MARGINAL);
289 dec->factories_cookie = gst_default_registry_get_feature_list_cookie ();
294 gst_uri_decode_bin_autoplug_factories (GstElement * element, GstPad * pad,
299 GstURIDecodeBin *dec = GST_URI_DECODE_BIN_CAST (element);
301 GST_DEBUG_OBJECT (element, "finding factories");
303 /* return all compatible factories for caps */
304 g_mutex_lock (dec->factories_lock);
305 gst_uri_decode_bin_update_factories_list (dec);
307 gst_element_factory_list_filter (dec->factories, caps, GST_PAD_SINK,
309 g_mutex_unlock (dec->factories_lock);
311 result = g_value_array_new (g_list_length (list));
312 for (tmp = list; tmp; tmp = tmp->next) {
313 GstElementFactory *factory = GST_ELEMENT_FACTORY_CAST (tmp->data);
316 g_value_init (&val, G_TYPE_OBJECT);
317 g_value_set_object (&val, factory);
318 g_value_array_append (result, &val);
319 g_value_unset (&val);
321 gst_plugin_feature_list_free (list);
323 GST_DEBUG_OBJECT (element, "autoplug-factories returns %p", result);
329 gst_uri_decode_bin_autoplug_sort (GstElement * element, GstPad * pad,
330 GstCaps * caps, GValueArray * factories)
335 static GstAutoplugSelectResult
336 gst_uri_decode_bin_autoplug_select (GstElement * element, GstPad * pad,
337 GstCaps * caps, GstElementFactory * factory)
339 GST_DEBUG_OBJECT (element, "default autoplug-select returns TRY");
342 return GST_AUTOPLUG_SELECT_TRY;
346 gst_uri_decode_bin_class_init (GstURIDecodeBinClass * klass)
348 GObjectClass *gobject_class;
349 GstElementClass *gstelement_class;
350 GstBinClass *gstbin_class;
352 gobject_class = G_OBJECT_CLASS (klass);
353 gstelement_class = GST_ELEMENT_CLASS (klass);
354 gstbin_class = GST_BIN_CLASS (klass);
356 gobject_class->set_property = gst_uri_decode_bin_set_property;
357 gobject_class->get_property = gst_uri_decode_bin_get_property;
358 gobject_class->finalize = gst_uri_decode_bin_finalize;
360 g_object_class_install_property (gobject_class, PROP_URI,
361 g_param_spec_string ("uri", "URI", "URI to decode",
362 DEFAULT_PROP_URI, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
364 g_object_class_install_property (gobject_class, PROP_SOURCE,
365 g_param_spec_object ("source", "Source", "Source object used",
366 GST_TYPE_ELEMENT, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
368 g_object_class_install_property (gobject_class, PROP_CONNECTION_SPEED,
369 g_param_spec_uint ("connection-speed", "Connection Speed",
370 "Network connection speed in kbps (0 = unknown)",
371 0, G_MAXUINT / 1000, DEFAULT_CONNECTION_SPEED,
372 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
374 g_object_class_install_property (gobject_class, PROP_CAPS,
375 g_param_spec_boxed ("caps", "Caps",
376 "The caps on which to stop decoding. (NULL = default)",
377 GST_TYPE_CAPS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
379 g_object_class_install_property (gobject_class, PROP_SUBTITLE_ENCODING,
380 g_param_spec_string ("subtitle-encoding", "subtitle encoding",
381 "Encoding to assume if input subtitles are not in UTF-8 encoding. "
382 "If not set, the GST_SUBTITLE_ENCODING environment variable will "
383 "be checked for an encoding to use. If that is not set either, "
384 "ISO-8859-15 will be assumed.", NULL,
385 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
387 g_object_class_install_property (gobject_class, PROP_BUFFER_SIZE,
388 g_param_spec_int ("buffer-size", "Buffer size (bytes)",
389 "Buffer size when buffering streams (-1 default value)",
390 -1, G_MAXINT, DEFAULT_BUFFER_SIZE,
391 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
392 g_object_class_install_property (gobject_class, PROP_BUFFER_DURATION,
393 g_param_spec_int64 ("buffer-duration", "Buffer duration (ns)",
394 "Buffer duration when buffering streams (-1 default value)",
395 -1, G_MAXINT64, DEFAULT_BUFFER_DURATION,
396 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
399 * GstURIDecodeBin::download:
401 * For certain media type, enable download buffering.
403 g_object_class_install_property (gobject_class, PROP_DOWNLOAD,
404 g_param_spec_boolean ("download", "Download",
405 "Attempt download buffering when buffering network streams",
406 DEFAULT_DOWNLOAD, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
408 * GstURIDecodeBin::use-buffering:
410 * Emit BUFFERING messages based on low-/high-percent thresholds of the
411 * demuxed or parsed data.
412 * When download buffering is activated and used for the current media
413 * type, this property does nothing. Otherwise perform buffering on the
414 * demuxed or parsed media.
418 g_object_class_install_property (gobject_class, PROP_USE_BUFFERING,
419 g_param_spec_boolean ("use-buffering", "Use Buffering",
420 "Perform buffering on demuxed/parsed media",
421 DEFAULT_USE_BUFFERING, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
424 * GstURIDecodeBin::expose-all-streams
426 * Expose streams of unknown type.
428 * If set to %FALSE, then only the streams that can be decoded to the final
429 * caps (see 'caps' property) will have a pad exposed. Streams that do not
430 * match those caps but could have been decoded will not have decoder plugged
431 * in internally and will not have a pad exposed.
435 g_object_class_install_property (gobject_class, PROP_EXPOSE_ALL_STREAMS,
436 g_param_spec_boolean ("expose-all-streams", "Expose All Streams",
437 "Expose all streams, including those of unknown type or that don't match the 'caps' property",
438 DEFAULT_EXPOSE_ALL_STREAMS,
439 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
442 * GstURIDecodeBin::ring-buffer-max-size
444 * The maximum size of the ring buffer in kilobytes. If set to 0, the ring
445 * buffer is disabled. Default is 0.
449 g_object_class_install_property (gobject_class, PROP_RING_BUFFER_MAX_SIZE,
450 g_param_spec_uint64 ("ring-buffer-max-size",
451 "Max. ring buffer size (bytes)",
452 "Max. amount of data in the ring buffer (bytes, 0 = ring buffer disabled)",
453 0, G_MAXUINT, DEFAULT_RING_BUFFER_MAX_SIZE,
454 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
457 * GstURIDecodeBin::unknown-type:
458 * @bin: The uridecodebin.
459 * @pad: the new pad containing caps that cannot be resolved to a 'final'.
461 * @caps: the #GstCaps of the pad that cannot be resolved.
463 * This signal is emitted when a pad for which there is no further possible
464 * decoding is added to the uridecodebin.
466 gst_uri_decode_bin_signals[SIGNAL_UNKNOWN_TYPE] =
467 g_signal_new ("unknown-type", G_TYPE_FROM_CLASS (klass),
468 G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstURIDecodeBinClass, unknown_type),
469 NULL, NULL, gst_marshal_VOID__OBJECT_BOXED, G_TYPE_NONE, 2,
470 GST_TYPE_PAD, GST_TYPE_CAPS);
473 * GstURIDecodeBin::autoplug-continue:
474 * @bin: The uridecodebin.
476 * @caps: The #GstCaps found.
478 * This signal is emitted whenever uridecodebin finds a new stream. It is
479 * emitted before looking for any elements that can handle that stream.
482 * Invocation of signal handlers stops after the first signal handler
483 * returns #FALSE. Signal handlers are invoked in the order they were
487 * Returns: #TRUE if you wish uridecodebin to look for elements that can
488 * handle the given @caps. If #FALSE, those caps will be considered as
489 * final and the pad will be exposed as such (see 'pad-added' signal of
492 gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_CONTINUE] =
493 g_signal_new ("autoplug-continue", G_TYPE_FROM_CLASS (klass),
494 G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstURIDecodeBinClass,
495 autoplug_continue), _gst_boolean_accumulator, NULL,
496 gst_play_marshal_BOOLEAN__OBJECT_BOXED, G_TYPE_BOOLEAN, 2, GST_TYPE_PAD,
500 * GstURIDecodeBin::autoplug-factories:
501 * @bin: The uridecodebin.
503 * @caps: The #GstCaps found.
505 * This function is emited when an array of possible factories for @caps on
506 * @pad is needed. Uridecodebin will by default return an array with all
507 * compatible factories, sorted by rank.
509 * If this function returns NULL, @pad will be exposed as a final caps.
511 * If this function returns an empty array, the pad will be considered as
512 * having an unhandled type media type.
515 * Only the signal handler that is connected first will ever by invoked.
516 * Don't connect signal handlers with the #G_CONNECT_AFTER flag to this
517 * signal, they will never be invoked!
520 * Returns: a #GValueArray* with a list of factories to try. The factories are
521 * by default tried in the returned order or based on the index returned by
524 gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_FACTORIES] =
525 g_signal_new ("autoplug-factories", G_TYPE_FROM_CLASS (klass),
526 G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstURIDecodeBinClass,
527 autoplug_factories), _gst_array_accumulator, NULL,
528 gst_play_marshal_BOXED__OBJECT_BOXED, G_TYPE_VALUE_ARRAY, 2,
529 GST_TYPE_PAD, GST_TYPE_CAPS);
532 * GstURIDecodeBin::autoplug-sort:
533 * @bin: The uridecodebin.
535 * @caps: The #GstCaps.
536 * @factories: A #GValueArray of possible #GstElementFactory to use.
538 * Once decodebin has found the possible #GstElementFactory objects to try
539 * for @caps on @pad, this signal is emited. The purpose of the signal is for
540 * the application to perform additional sorting or filtering on the element
543 * The callee should copy and modify @factories or return #NULL if the
544 * order should not change.
547 * Invocation of signal handlers stops after one signal handler has
548 * returned something else than #NULL. Signal handlers are invoked in
549 * the order they were connected in.
550 * Don't connect signal handlers with the #G_CONNECT_AFTER flag to this
551 * signal, they will never be invoked!
554 * Returns: A new sorted array of #GstElementFactory objects.
558 gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_SORT] =
559 g_signal_new ("autoplug-sort", G_TYPE_FROM_CLASS (klass),
560 G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstURIDecodeBinClass, autoplug_sort),
561 _gst_array_hasvalue_accumulator, NULL,
562 gst_play_marshal_BOXED__OBJECT_BOXED_BOXED, G_TYPE_VALUE_ARRAY, 3,
563 GST_TYPE_PAD, GST_TYPE_CAPS, G_TYPE_VALUE_ARRAY);
566 * GstURIDecodeBin::autoplug-select:
567 * @bin: The uridecodebin.
569 * @caps: The #GstCaps.
570 * @factory: A #GstElementFactory to use.
572 * This signal is emitted once uridecodebin has found all the possible
573 * #GstElementFactory that can be used to handle the given @caps. For each of
574 * those factories, this signal is emited.
576 * The signal handler should return a #GST_TYPE_AUTOPLUG_SELECT_RESULT enum
577 * value indicating what decodebin should do next.
579 * A value of #GST_AUTOPLUG_SELECT_TRY will try to autoplug an element from
582 * A value of #GST_AUTOPLUG_SELECT_EXPOSE will expose @pad without plugging
585 * A value of #GST_AUTOPLUG_SELECT_SKIP will skip @factory and move to the
589 * Only the signal handler that is connected first will ever by invoked.
590 * Don't connect signal handlers with the #G_CONNECT_AFTER flag to this
591 * signal, they will never be invoked!
594 * Returns: a #GST_TYPE_AUTOPLUG_SELECT_RESULT that indicates the required
595 * operation. The default handler will always return
596 * #GST_AUTOPLUG_SELECT_TRY.
598 gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_SELECT] =
599 g_signal_new ("autoplug-select", G_TYPE_FROM_CLASS (klass),
600 G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstURIDecodeBinClass,
601 autoplug_select), _gst_select_accumulator, NULL,
602 gst_play_marshal_ENUM__OBJECT_BOXED_OBJECT,
603 GST_TYPE_AUTOPLUG_SELECT_RESULT, 3, GST_TYPE_PAD, GST_TYPE_CAPS,
604 GST_TYPE_ELEMENT_FACTORY);
607 * GstURIDecodeBin::drained:
609 * This signal is emitted when the data for the current uri is played.
611 gst_uri_decode_bin_signals[SIGNAL_DRAINED] =
612 g_signal_new ("drained", G_TYPE_FROM_CLASS (klass),
614 G_STRUCT_OFFSET (GstURIDecodeBinClass, drained), NULL, NULL,
615 gst_marshal_VOID__VOID, G_TYPE_NONE, 0, G_TYPE_NONE);
618 * GstURIDecodeBin::source-setup:
619 * @bin: the uridecodebin.
620 * @source: source element
622 * This signal is emitted after the source element has been created, so
623 * it can be configured by setting additional properties (e.g. set a
624 * proxy server for an http source, or set the device and read speed for
625 * an audio cd source). This is functionally equivalent to connecting to
626 * the notify::source signal, but more convenient.
630 gst_uri_decode_bin_signals[SIGNAL_SOURCE_SETUP] =
631 g_signal_new ("source-setup", G_TYPE_FROM_CLASS (klass),
632 G_SIGNAL_RUN_LAST, 0, NULL, NULL,
633 gst_marshal_VOID__OBJECT, G_TYPE_NONE, 1, GST_TYPE_ELEMENT);
635 gst_element_class_add_pad_template (gstelement_class,
636 gst_static_pad_template_get (&srctemplate));
637 gst_element_class_set_details_simple (gstelement_class,
638 "URI Decoder", "Generic/Bin/Decoder",
639 "Autoplug and decode an URI to raw media",
640 "Wim Taymans <wim.taymans@gmail.com>");
642 gstelement_class->query = GST_DEBUG_FUNCPTR (gst_uri_decode_bin_query);
643 gstelement_class->change_state =
644 GST_DEBUG_FUNCPTR (gst_uri_decode_bin_change_state);
646 gstbin_class->handle_message = GST_DEBUG_FUNCPTR (handle_message);
648 klass->autoplug_continue =
649 GST_DEBUG_FUNCPTR (gst_uri_decode_bin_autoplug_continue);
650 klass->autoplug_factories =
651 GST_DEBUG_FUNCPTR (gst_uri_decode_bin_autoplug_factories);
652 klass->autoplug_sort = GST_DEBUG_FUNCPTR (gst_uri_decode_bin_autoplug_sort);
653 klass->autoplug_select =
654 GST_DEBUG_FUNCPTR (gst_uri_decode_bin_autoplug_select);
658 gst_uri_decode_bin_init (GstURIDecodeBin * dec)
660 /* first filter out the interesting element factories */
661 dec->factories_lock = g_mutex_new ();
663 dec->lock = g_mutex_new ();
665 dec->uri = g_strdup (DEFAULT_PROP_URI);
666 dec->connection_speed = DEFAULT_CONNECTION_SPEED;
667 dec->caps = DEFAULT_CAPS;
668 dec->encoding = g_strdup (DEFAULT_SUBTITLE_ENCODING);
670 dec->buffer_duration = DEFAULT_BUFFER_DURATION;
671 dec->buffer_size = DEFAULT_BUFFER_SIZE;
672 dec->download = DEFAULT_DOWNLOAD;
673 dec->use_buffering = DEFAULT_USE_BUFFERING;
674 dec->expose_allstreams = DEFAULT_EXPOSE_ALL_STREAMS;
675 dec->ring_buffer_max_size = DEFAULT_RING_BUFFER_MAX_SIZE;
677 GST_OBJECT_FLAG_SET (dec, GST_ELEMENT_IS_SOURCE);
681 gst_uri_decode_bin_finalize (GObject * obj)
683 GstURIDecodeBin *dec = GST_URI_DECODE_BIN (obj);
685 remove_decoders (dec, TRUE);
686 g_mutex_free (dec->lock);
687 g_mutex_free (dec->factories_lock);
689 g_free (dec->encoding);
691 gst_plugin_feature_list_free (dec->factories);
693 gst_caps_unref (dec->caps);
695 G_OBJECT_CLASS (parent_class)->finalize (obj);
699 gst_uri_decode_bin_set_encoding (GstURIDecodeBin * dec, const gchar * encoding)
703 GST_URI_DECODE_BIN_LOCK (dec);
705 /* set property first */
706 GST_OBJECT_LOCK (dec);
707 g_free (dec->encoding);
708 dec->encoding = g_strdup (encoding);
709 GST_OBJECT_UNLOCK (dec);
711 /* set the property on all decodebins now */
712 for (walk = dec->decodebins; walk; walk = g_slist_next (walk)) {
713 GObject *decodebin = G_OBJECT (walk->data);
715 g_object_set (decodebin, "subtitle-encoding", encoding, NULL);
717 GST_URI_DECODE_BIN_UNLOCK (dec);
721 gst_uri_decode_bin_set_property (GObject * object, guint prop_id,
722 const GValue * value, GParamSpec * pspec)
724 GstURIDecodeBin *dec = GST_URI_DECODE_BIN (object);
728 GST_OBJECT_LOCK (dec);
730 dec->uri = g_value_dup_string (value);
731 GST_OBJECT_UNLOCK (dec);
733 case PROP_CONNECTION_SPEED:
734 GST_OBJECT_LOCK (dec);
735 dec->connection_speed = g_value_get_uint (value) * 1000;
736 GST_OBJECT_UNLOCK (dec);
739 GST_OBJECT_LOCK (dec);
741 gst_caps_unref (dec->caps);
742 dec->caps = g_value_dup_boxed (value);
743 GST_OBJECT_UNLOCK (dec);
745 case PROP_SUBTITLE_ENCODING:
746 gst_uri_decode_bin_set_encoding (dec, g_value_get_string (value));
748 case PROP_BUFFER_SIZE:
749 dec->buffer_size = g_value_get_int (value);
751 case PROP_BUFFER_DURATION:
752 dec->buffer_duration = g_value_get_int64 (value);
755 dec->download = g_value_get_boolean (value);
757 case PROP_USE_BUFFERING:
758 dec->use_buffering = g_value_get_boolean (value);
760 case PROP_EXPOSE_ALL_STREAMS:
761 dec->expose_allstreams = g_value_get_boolean (value);
763 case PROP_RING_BUFFER_MAX_SIZE:
764 dec->ring_buffer_max_size = g_value_get_uint64 (value);
767 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
773 gst_uri_decode_bin_get_property (GObject * object, guint prop_id,
774 GValue * value, GParamSpec * pspec)
776 GstURIDecodeBin *dec = GST_URI_DECODE_BIN (object);
780 GST_OBJECT_LOCK (dec);
781 g_value_set_string (value, dec->uri);
782 GST_OBJECT_UNLOCK (dec);
785 GST_OBJECT_LOCK (dec);
786 g_value_set_object (value, dec->source);
787 GST_OBJECT_UNLOCK (dec);
789 case PROP_CONNECTION_SPEED:
790 GST_OBJECT_LOCK (dec);
791 g_value_set_uint (value, dec->connection_speed / 1000);
792 GST_OBJECT_UNLOCK (dec);
795 GST_OBJECT_LOCK (dec);
796 g_value_set_boxed (value, dec->caps);
797 GST_OBJECT_UNLOCK (dec);
799 case PROP_SUBTITLE_ENCODING:
800 GST_OBJECT_LOCK (dec);
801 g_value_set_string (value, dec->encoding);
802 GST_OBJECT_UNLOCK (dec);
804 case PROP_BUFFER_SIZE:
805 GST_OBJECT_LOCK (dec);
806 g_value_set_int (value, dec->buffer_size);
807 GST_OBJECT_UNLOCK (dec);
809 case PROP_BUFFER_DURATION:
810 GST_OBJECT_LOCK (dec);
811 g_value_set_int64 (value, dec->buffer_duration);
812 GST_OBJECT_UNLOCK (dec);
815 g_value_set_boolean (value, dec->download);
817 case PROP_USE_BUFFERING:
818 g_value_set_boolean (value, dec->use_buffering);
820 case PROP_EXPOSE_ALL_STREAMS:
821 g_value_set_boolean (value, dec->expose_allstreams);
823 case PROP_RING_BUFFER_MAX_SIZE:
824 g_value_set_uint64 (value, dec->ring_buffer_max_size);
827 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
833 do_async_start (GstURIDecodeBin * dbin)
837 dbin->async_pending = TRUE;
839 message = gst_message_new_async_start (GST_OBJECT_CAST (dbin));
840 GST_BIN_CLASS (parent_class)->handle_message (GST_BIN_CAST (dbin), message);
844 do_async_done (GstURIDecodeBin * dbin)
848 if (dbin->async_pending) {
849 GST_DEBUG_OBJECT (dbin, "posting ASYNC_DONE");
850 message = gst_message_new_async_done (GST_OBJECT_CAST (dbin), FALSE);
851 GST_BIN_CLASS (parent_class)->handle_message (GST_BIN_CAST (dbin), message);
853 dbin->async_pending = FALSE;
857 #define DEFAULT_QUEUE_SIZE (3 * GST_SECOND)
858 #define DEFAULT_QUEUE_MIN_THRESHOLD ((DEFAULT_QUEUE_SIZE * 30) / 100)
859 #define DEFAULT_QUEUE_THRESHOLD ((DEFAULT_QUEUE_SIZE * 95) / 100)
862 unknown_type_cb (GstElement * element, GstPad * pad, GstCaps * caps,
863 GstURIDecodeBin * decoder)
867 capsstr = gst_caps_to_string (caps);
868 GST_ELEMENT_WARNING (decoder, STREAM, CODEC_NOT_FOUND,
869 (_("No decoder available for type \'%s\'."), capsstr), (NULL));
873 /* add a streaminfo that indicates that the stream is handled by the
874 * given element. This usually means that a stream without actual data is
875 * produced but one that is sunken by an element. Examples of this are:
876 * cdaudio, a hardware decoder/sink, dvd meta bins etc...
879 add_element_stream (GstElement * element, GstURIDecodeBin * decoder)
881 g_warning ("add element stream");
884 /* when the decoder element signals that no more pads will be generated, we
885 * can commit the current group.
888 no_more_pads_full (GstElement * element, gboolean subs,
889 GstURIDecodeBin * decoder)
894 GST_DEBUG_OBJECT (element, "no more pads, %d pending", decoder->pending);
896 GST_URI_DECODE_BIN_LOCK (decoder);
897 final = (decoder->pending == 0);
899 /* nothing pending, we can exit */
903 /* the object has no pending no_more_pads */
904 if (!g_object_get_data (G_OBJECT (element), "pending"))
906 g_object_set_data (G_OBJECT (element), "pending", NULL);
909 final = (decoder->pending == 0);
912 GST_URI_DECODE_BIN_UNLOCK (decoder);
915 gst_element_no_more_pads (GST_ELEMENT_CAST (decoder));
921 no_more_pads (GstElement * element, GstURIDecodeBin * decoder)
923 no_more_pads_full (element, FALSE, decoder);
927 source_no_more_pads (GstElement * element, GstURIDecodeBin * bin)
929 GST_DEBUG_OBJECT (bin, "No more pads in source element %s.",
930 GST_ELEMENT_NAME (element));
932 g_signal_handler_disconnect (element, bin->src_np_sig_id);
933 bin->src_np_sig_id = 0;
934 g_signal_handler_disconnect (element, bin->src_nmp_sig_id);
935 bin->src_nmp_sig_id = 0;
937 no_more_pads_full (element, FALSE, bin);
941 configure_stream_buffering (GstURIDecodeBin * decoder)
943 GstElement *queue = NULL;
948 /* automatic configuration enabled ? */
949 if (decoder->buffer_size != -1)
952 GST_URI_DECODE_BIN_LOCK (decoder);
954 queue = gst_object_ref (decoder->queue);
956 g_hash_table_iter_init (&iter, decoder->streams);
957 while (g_hash_table_iter_next (&iter, &key, &value)) {
958 GstURIDecodeBinStream *stream = value;
960 if (stream->bitrate && bitrate >= 0)
961 bitrate += stream->bitrate;
965 GST_URI_DECODE_BIN_UNLOCK (decoder);
967 GST_DEBUG_OBJECT (decoder, "overall bitrate %d", bitrate);
975 /* all streams have a bitrate;
976 * configure queue size based on queue duration using combined bitrate */
977 g_object_get (queue, "max-size-time", &time, NULL);
978 GST_DEBUG_OBJECT (decoder, "queue buffering time %" GST_TIME_FORMAT,
979 GST_TIME_ARGS (time));
981 bytes = gst_util_uint64_scale (time, bitrate, 8 * GST_SECOND);
982 GST_DEBUG_OBJECT (decoder, "corresponds to buffer size %d", bytes);
983 g_object_set (queue, "max-size-bytes", bytes, NULL);
987 gst_object_unref (queue);
990 static GstPadProbeReturn
991 decoded_pad_event_probe (GstPad * pad, GstPadProbeInfo * info,
994 GstEvent *event = GST_PAD_PROBE_INFO_EVENT (info);
995 GstURIDecodeBin *decoder = user_data;
997 GST_LOG_OBJECT (pad, "%s, decoder %p", GST_EVENT_TYPE_NAME (event), decoder);
999 /* look for a bitrate tag */
1000 switch (GST_EVENT_TYPE (event)) {
1005 GstURIDecodeBinStream *stream;
1007 gst_event_parse_tag (event, &list);
1008 if (!gst_tag_list_get_uint_index (list, GST_TAG_NOMINAL_BITRATE, 0,
1010 gst_tag_list_get_uint_index (list, GST_TAG_BITRATE, 0, &bitrate);
1012 GST_DEBUG_OBJECT (pad, "found bitrate %u", bitrate);
1014 GST_URI_DECODE_BIN_LOCK (decoder);
1015 stream = g_hash_table_lookup (decoder->streams, pad);
1016 GST_URI_DECODE_BIN_UNLOCK (decoder);
1018 stream->bitrate = bitrate;
1019 /* no longer need this probe now */
1020 gst_pad_remove_probe (pad, stream->probe_id);
1021 /* configure buffer if possible */
1022 configure_stream_buffering (decoder);
1032 return GST_PAD_PROBE_OK;
1035 /* Called by the signal handlers when a decodebin has found a new raw pad */
1037 new_decoded_pad_added_cb (GstElement * element, GstPad * pad,
1038 GstURIDecodeBin * decoder)
1041 GstPadTemplate *pad_tmpl;
1043 GstURIDecodeBinStream *stream;
1045 GST_DEBUG_OBJECT (element, "new decoded pad, name: <%s>", GST_PAD_NAME (pad));
1047 GST_URI_DECODE_BIN_LOCK (decoder);
1048 padname = g_strdup_printf ("src_%u", decoder->numpads);
1050 GST_URI_DECODE_BIN_UNLOCK (decoder);
1052 pad_tmpl = gst_static_pad_template_get (&srctemplate);
1053 newpad = gst_ghost_pad_new_from_template (padname, pad, pad_tmpl);
1054 gst_object_unref (pad_tmpl);
1057 /* store ref to the ghostpad so we can remove it */
1058 g_object_set_data (G_OBJECT (pad), "uridecodebin.ghostpad", newpad);
1060 /* add event probe to monitor tags */
1061 stream = g_slice_alloc0 (sizeof (GstURIDecodeBinStream));
1063 gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM,
1064 decoded_pad_event_probe, decoder, NULL);
1065 GST_URI_DECODE_BIN_LOCK (decoder);
1066 g_hash_table_insert (decoder->streams, pad, stream);
1067 GST_URI_DECODE_BIN_UNLOCK (decoder);
1069 gst_pad_set_active (newpad, TRUE);
1070 gst_element_add_pad (GST_ELEMENT_CAST (decoder), newpad);
1073 static GstPadProbeReturn
1074 source_pad_event_probe (GstPad * pad, GstPadProbeInfo * info,
1077 GstEvent *event = GST_PAD_PROBE_INFO_EVENT (info);
1078 GstURIDecodeBin *decoder = user_data;
1080 GST_LOG_OBJECT (pad, "%s, decoder %p", GST_EVENT_TYPE_NAME (event), decoder);
1082 if (GST_EVENT_TYPE (event) == GST_EVENT_EOS) {
1083 GST_DEBUG_OBJECT (pad, "we received EOS");
1085 g_signal_emit (decoder,
1086 gst_uri_decode_bin_signals[SIGNAL_DRAINED], 0, NULL);
1088 /* never drop events */
1089 return GST_PAD_PROBE_OK;
1092 /* called when we found a raw pad on the source element. We need to set up a
1093 * padprobe to detect EOS before exposing the pad. */
1095 expose_decoded_pad (GstElement * element, GstPad * pad,
1096 GstURIDecodeBin * decoder)
1098 gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM,
1099 source_pad_event_probe, decoder, NULL);
1101 new_decoded_pad_added_cb (element, pad, decoder);
1105 pad_removed_cb (GstElement * element, GstPad * pad, GstURIDecodeBin * decoder)
1109 GST_DEBUG_OBJECT (element, "pad removed name: <%s:%s>",
1110 GST_DEBUG_PAD_NAME (pad));
1112 /* we only care about srcpads */
1113 if (!GST_PAD_IS_SRC (pad))
1116 if (!(ghost = g_object_get_data (G_OBJECT (pad), "uridecodebin.ghostpad")))
1119 /* unghost the pad */
1120 gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (ghost), NULL);
1122 /* deactivate and remove */
1123 gst_pad_set_active (pad, FALSE);
1124 gst_element_remove_pad (GST_ELEMENT_CAST (decoder), ghost);
1131 GST_WARNING_OBJECT (element, "no ghost pad found");
1136 /* helper function to lookup stuff in lists */
1138 array_has_value (const gchar * values[], const gchar * value)
1142 for (i = 0; values[i]; i++) {
1143 if (g_str_has_prefix (value, values[i]))
1150 array_has_uri_value (const gchar * values[], const gchar * value)
1154 for (i = 0; values[i]; i++) {
1155 if (!g_ascii_strncasecmp (value, values[i], strlen (values[i])))
1161 /* list of URIs that we consider to be streams and that need buffering.
1162 * We have no mechanism yet to figure this out with a query. */
1163 static const gchar *stream_uris[] = { "http://", "https://", "mms://",
1164 "mmsh://", "mmsu://", "mmst://", "fd://", "myth://", "ssh://",
1165 "ftp://", "sftp://",
1169 /* list of URIs that need a queue because they are pretty bursty */
1170 static const gchar *queue_uris[] = { "cdda://", NULL };
1172 /* blacklisted URIs, we know they will always fail. */
1173 static const gchar *blacklisted_uris[] = { NULL };
1175 /* mime types that we don't consider to be media types */
1177 static const gchar *no_media_mimes[] = {
1178 "application/x-executable", "application/x-bzip", "application/x-gzip",
1179 "application/zip", "application/x-compress", NULL
1183 /* media types we can download */
1184 static const gchar *download_media[] = {
1185 "video/quicktime", "video/mj2", "audio/x-m4a", "application/x-3gp",
1186 "video/x-flv", "video/x-msvideo", "video/webm", NULL
1189 #define IS_STREAM_URI(uri) (array_has_uri_value (stream_uris, uri))
1190 #define IS_QUEUE_URI(uri) (array_has_uri_value (queue_uris, uri))
1191 #define IS_BLACKLISTED_URI(uri) (array_has_uri_value (blacklisted_uris, uri))
1192 #define IS_NO_MEDIA_MIME(mime) (array_has_value (no_media_mimes, mime))
1193 #define IS_DOWNLOAD_MEDIA(media) (array_has_value (download_media, media))
1196 * Generate and configure a source element.
1199 gen_source_element (GstURIDecodeBin * decoder)
1206 GST_LOG_OBJECT (decoder, "finding source for %s", decoder->uri);
1208 if (!gst_uri_is_valid (decoder->uri))
1211 if (IS_BLACKLISTED_URI (decoder->uri))
1212 goto uri_blacklisted;
1214 source = gst_element_make_from_uri (GST_URI_SRC, decoder->uri, "source");
1218 GST_LOG_OBJECT (decoder, "found source type %s", G_OBJECT_TYPE_NAME (source));
1220 decoder->is_stream = IS_STREAM_URI (decoder->uri);
1221 GST_LOG_OBJECT (decoder, "source is stream: %d", decoder->is_stream);
1223 decoder->need_queue = IS_QUEUE_URI (decoder->uri);
1224 GST_LOG_OBJECT (decoder, "source needs queue: %d", decoder->need_queue);
1226 /* make HTTP sources send extra headers so we get icecast
1227 * metadata in case the stream is an icecast stream */
1228 if (!strncmp (decoder->uri, "http://", 7) &&
1229 g_object_class_find_property (G_OBJECT_GET_CLASS (source),
1231 GST_LOG_OBJECT (decoder, "configuring iradio-mode");
1232 g_object_set (source, "iradio-mode", TRUE, NULL);
1235 if (g_object_class_find_property (G_OBJECT_GET_CLASS (source),
1236 "connection-speed")) {
1237 GST_DEBUG_OBJECT (decoder,
1238 "setting connection-speed=%d to source element",
1239 decoder->connection_speed / 1000);
1240 g_object_set (source, "connection-speed",
1241 decoder->connection_speed / 1000, NULL);
1243 if (g_object_class_find_property (G_OBJECT_GET_CLASS (source),
1244 "subtitle-encoding")) {
1245 GST_DEBUG_OBJECT (decoder,
1246 "setting subtitle-encoding=%s to source element", decoder->encoding);
1247 g_object_set (source, "subtitle-encoding", decoder->encoding, NULL);
1254 GST_ELEMENT_ERROR (decoder, RESOURCE, NOT_FOUND,
1255 (_("No URI specified to play from.")), (NULL));
1260 GST_ELEMENT_ERROR (decoder, RESOURCE, NOT_FOUND,
1261 (_("Invalid URI \"%s\"."), decoder->uri), (NULL));
1266 GST_ELEMENT_ERROR (decoder, RESOURCE, FAILED,
1267 (_("This stream type cannot be played yet.")), (NULL));
1272 gchar *prot = gst_uri_get_protocol (decoder->uri);
1274 /* whoops, could not create the source element, dig a little deeper to
1275 * figure out what might be wrong. */
1280 gst_missing_uri_source_message_new (GST_ELEMENT_CAST (decoder), prot);
1281 gst_element_post_message (GST_ELEMENT_CAST (decoder), msg);
1283 GST_ELEMENT_ERROR (decoder, CORE, MISSING_PLUGIN,
1284 (_("No URI handler implemented for \"%s\"."), prot), (NULL));
1296 * @all_raw: pointer to hold the result
1298 * check if the caps of the pad are all raw. The caps are all raw if
1299 * all of its structures contain audio/x-raw or video/x-raw.
1301 * Returns: %FALSE @pad has no caps. Else TRUE and @all_raw set t the result.
1304 has_all_raw_caps (GstPad * pad, GstCaps * rawcaps, gboolean * all_raw)
1306 GstCaps *caps, *intersection;
1308 gboolean res = FALSE;
1310 caps = gst_pad_query_caps (pad, NULL);
1314 GST_DEBUG_OBJECT (pad, "have caps %" GST_PTR_FORMAT, caps);
1316 capssize = gst_caps_get_size (caps);
1317 /* no caps, skip and move to the next pad */
1318 if (capssize == 0 || gst_caps_is_empty (caps) || gst_caps_is_any (caps))
1321 intersection = gst_caps_intersect (caps, rawcaps);
1322 *all_raw = !gst_caps_is_empty (intersection)
1323 && (gst_caps_get_size (intersection) == capssize);
1324 gst_caps_unref (intersection);
1329 gst_caps_unref (caps);
1334 post_missing_plugin_error (GstElement * dec, const gchar * element_name)
1338 msg = gst_missing_element_message_new (dec, element_name);
1339 gst_element_post_message (dec, msg);
1341 GST_ELEMENT_ERROR (dec, CORE, MISSING_PLUGIN,
1342 (_("Missing element '%s' - check your GStreamer installation."),
1343 element_name), (NULL));
1348 * @decoder: a #GstURIDecodeBin
1349 * @is_raw: are all pads raw data
1350 * @have_out: does the source have output
1351 * @is_dynamic: is this a dynamic source
1352 * @use_queue: put a queue before raw output pads
1354 * Check the source of @decoder and collect information about it.
1356 * @is_raw will be set to TRUE if the source only produces raw pads. When this
1357 * function returns, all of the raw pad of the source will be added
1360 * @have_out: will be set to TRUE if the source has output pads.
1362 * @is_dynamic: TRUE if the element will create (more) pads dynamically later
1365 * Returns: FALSE if a fatal error occured while scanning.
1368 analyse_source (GstURIDecodeBin * decoder, gboolean * is_raw,
1369 gboolean * have_out, gboolean * is_dynamic, gboolean use_queue)
1371 GstIterator *pads_iter;
1372 gboolean done = FALSE;
1373 gboolean res = TRUE;
1376 GValue item = { 0, };
1380 *is_dynamic = FALSE;
1382 g_object_get (decoder, "caps", &rawcaps, NULL);
1384 rawcaps = DEFAULT_CAPS;
1386 pads_iter = gst_element_iterate_src_pads (decoder->source);
1388 switch (gst_iterator_next (pads_iter, &item)) {
1389 case GST_ITERATOR_ERROR:
1392 case GST_ITERATOR_DONE:
1395 case GST_ITERATOR_RESYNC:
1396 /* reset results and resync */
1399 *is_dynamic = FALSE;
1400 gst_iterator_resync (pads_iter);
1402 case GST_ITERATOR_OK:
1403 pad = g_value_get_object (&item);
1404 /* we now officially have an ouput pad */
1407 /* if FALSE, this pad has no caps and we continue with the next pad. */
1408 if (!has_all_raw_caps (pad, rawcaps, is_raw)) {
1409 g_value_reset (&item);
1413 /* caps on source pad are all raw, we can add the pad */
1415 GstElement *outelem;
1420 /* insert a queue element right before the raw pad */
1421 outelem = gst_element_factory_make ("queue2", NULL);
1425 gst_bin_add (GST_BIN_CAST (decoder), outelem);
1427 sinkpad = gst_element_get_static_pad (outelem, "sink");
1428 gst_pad_link (pad, sinkpad);
1429 gst_object_unref (sinkpad);
1430 gst_object_unref (pad);
1432 /* save queue pointer so we can remove it later */
1433 decoder->queue = outelem;
1435 /* get the new raw srcpad */
1436 pad = gst_element_get_static_pad (outelem, "src");
1438 outelem = decoder->source;
1440 expose_decoded_pad (outelem, pad, decoder);
1442 g_value_reset (&item);
1446 g_value_unset (&item);
1447 gst_iterator_free (pads_iter);
1448 gst_caps_unref (rawcaps);
1451 GstElementClass *elemclass;
1454 /* element has no output pads, check for padtemplates that list SOMETIMES
1456 elemclass = GST_ELEMENT_GET_CLASS (decoder->source);
1458 walk = gst_element_class_get_pad_template_list (elemclass);
1459 while (walk != NULL) {
1460 GstPadTemplate *templ;
1462 templ = (GstPadTemplate *) walk->data;
1463 if (GST_PAD_TEMPLATE_DIRECTION (templ) == GST_PAD_SRC) {
1464 if (GST_PAD_TEMPLATE_PRESENCE (templ) == GST_PAD_SOMETIMES)
1468 walk = g_list_next (walk);
1475 post_missing_plugin_error (GST_ELEMENT_CAST (decoder), "queue2");
1477 g_value_unset (&item);
1478 gst_iterator_free (pads_iter);
1479 gst_caps_unref (rawcaps);
1485 /* Remove all decodebin from ourself
1486 * If force is FALSE, then the decodebin instances will be stored in
1487 * pending_decodebins for re-use later on.
1488 * If force is TRUE, then all decodebin instances will be unreferenced
1489 * and cleared, including the pending ones. */
1491 remove_decoders (GstURIDecodeBin * bin, gboolean force)
1495 for (walk = bin->decodebins; walk; walk = g_slist_next (walk)) {
1496 GstElement *decoder = GST_ELEMENT_CAST (walk->data);
1498 GST_DEBUG_OBJECT (bin, "removing old decoder element");
1500 gst_element_set_state (decoder, GST_STATE_NULL);
1501 gst_bin_remove (GST_BIN_CAST (bin), decoder);
1505 gst_element_set_state (decoder, GST_STATE_READY);
1506 /* add it to our list of pending decodebins */
1507 g_object_ref (decoder);
1508 gst_bin_remove (GST_BIN_CAST (bin), decoder);
1509 /* restore some properties we might have changed */
1510 g_object_set (decoder, "sink-caps", NULL, NULL);
1511 caps = DEFAULT_CAPS;
1512 g_object_set (decoder, "caps", caps, NULL);
1513 gst_caps_unref (caps);
1515 bin->pending_decodebins =
1516 g_slist_prepend (bin->pending_decodebins, decoder);
1519 g_slist_free (bin->decodebins);
1520 bin->decodebins = NULL;
1524 for (tmp = bin->pending_decodebins; tmp; tmp = tmp->next) {
1525 gst_element_set_state ((GstElement *) tmp->data, GST_STATE_NULL);
1526 gst_object_unref ((GstElement *) tmp->data);
1528 g_slist_free (bin->pending_decodebins);
1529 bin->pending_decodebins = NULL;
1533 /* Don't loose the SOURCE flag */
1534 GST_OBJECT_FLAG_SET (bin, GST_ELEMENT_IS_SOURCE);
1538 proxy_unknown_type_signal (GstElement * element, GstPad * pad, GstCaps * caps,
1539 GstURIDecodeBin * dec)
1541 GST_DEBUG_OBJECT (dec, "unknown-type signaled");
1544 gst_uri_decode_bin_signals[SIGNAL_UNKNOWN_TYPE], 0, pad, caps);
1548 proxy_autoplug_continue_signal (GstElement * element, GstPad * pad,
1549 GstCaps * caps, GstURIDecodeBin * dec)
1554 gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_CONTINUE], 0, pad, caps,
1557 GST_DEBUG_OBJECT (dec, "autoplug-continue returned %d", result);
1562 static GValueArray *
1563 proxy_autoplug_factories_signal (GstElement * element, GstPad * pad,
1564 GstCaps * caps, GstURIDecodeBin * dec)
1566 GValueArray *result;
1569 gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_FACTORIES], 0, pad, caps,
1572 GST_DEBUG_OBJECT (dec, "autoplug-factories returned %p", result);
1577 static GValueArray *
1578 proxy_autoplug_sort_signal (GstElement * element, GstPad * pad,
1579 GstCaps * caps, GValueArray * factories, GstURIDecodeBin * dec)
1581 GValueArray *result;
1584 gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_SORT], 0, pad, caps,
1585 factories, &result);
1587 GST_DEBUG_OBJECT (dec, "autoplug-sort returned %p", result);
1592 static GstAutoplugSelectResult
1593 proxy_autoplug_select_signal (GstElement * element, GstPad * pad,
1594 GstCaps * caps, GstElementFactory * factory, GstURIDecodeBin * dec)
1596 GstAutoplugSelectResult result;
1599 gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_SELECT], 0, pad, caps, factory,
1602 GST_DEBUG_OBJECT (dec, "autoplug-select returned %d", result);
1608 proxy_drained_signal (GstElement * element, GstURIDecodeBin * dec)
1610 GST_DEBUG_OBJECT (dec, "drained signaled");
1612 g_signal_emit (dec, gst_uri_decode_bin_signals[SIGNAL_DRAINED], 0, NULL);
1615 /* make a decodebin and connect to all the signals */
1617 make_decoder (GstURIDecodeBin * decoder)
1619 GstElement *decodebin;
1621 /* re-use pending decodebin */
1622 if (decoder->pending_decodebins) {
1623 GSList *first = decoder->pending_decodebins;
1624 GST_LOG_OBJECT (decoder, "re-using pending decodebin");
1625 decodebin = (GstElement *) first->data;
1626 decoder->pending_decodebins =
1627 g_slist_delete_link (decoder->pending_decodebins, first);
1629 GST_LOG_OBJECT (decoder, "making new decodebin");
1631 /* now create the decoder element */
1632 decodebin = gst_element_factory_make ("decodebin", NULL);
1638 if (decodebin->numsinkpads == 0)
1641 /* connect signals to proxy */
1642 g_signal_connect (decodebin, "unknown-type",
1643 G_CALLBACK (proxy_unknown_type_signal), decoder);
1644 g_signal_connect (decodebin, "autoplug-continue",
1645 G_CALLBACK (proxy_autoplug_continue_signal), decoder);
1646 g_signal_connect (decodebin, "autoplug-factories",
1647 G_CALLBACK (proxy_autoplug_factories_signal), decoder);
1648 g_signal_connect (decodebin, "autoplug-sort",
1649 G_CALLBACK (proxy_autoplug_sort_signal), decoder);
1650 g_signal_connect (decodebin, "autoplug-select",
1651 G_CALLBACK (proxy_autoplug_select_signal), decoder);
1652 g_signal_connect (decodebin, "drained",
1653 G_CALLBACK (proxy_drained_signal), decoder);
1655 /* set up callbacks to create the links between decoded data
1656 * and video/audio/subtitle rendering/output. */
1657 g_signal_connect (decodebin,
1658 "pad-added", G_CALLBACK (new_decoded_pad_added_cb), decoder);
1659 g_signal_connect (decodebin,
1660 "pad-removed", G_CALLBACK (pad_removed_cb), decoder);
1661 g_signal_connect (decodebin, "no-more-pads",
1662 G_CALLBACK (no_more_pads), decoder);
1663 g_signal_connect (decodebin,
1664 "unknown-type", G_CALLBACK (unknown_type_cb), decoder);
1667 /* configure caps if we have any */
1669 g_object_set (decodebin, "caps", decoder->caps, NULL);
1671 /* Propagate expose-all-streams property */
1672 g_object_set (decodebin, "expose-all-streams", decoder->expose_allstreams,
1675 if (!decoder->is_stream) {
1676 /* propagate the use-buffering property but only when we are not already
1677 * doing stream buffering with queue2. FIXME, we might want to do stream
1678 * buffering with the multiqueue buffering instead of queue2. */
1679 g_object_set (decodebin, "use-buffering", decoder->use_buffering, NULL);
1681 if (decoder->use_buffering) {
1685 /* configure sizes when buffering */
1686 if ((max_bytes = decoder->buffer_size) == -1)
1687 max_bytes = 2 * 1024 * 1024;
1688 if ((max_time = decoder->buffer_duration) == -1)
1689 max_time = 2 * GST_SECOND;
1691 g_object_set (decodebin, "max-size-bytes", max_bytes, "max-size-buffers",
1692 (guint) 0, "max-size-time", max_time, NULL);
1696 g_object_set_data (G_OBJECT (decodebin), "pending", GINT_TO_POINTER (1));
1697 g_object_set (decodebin, "subtitle-encoding", decoder->encoding, NULL);
1699 GST_LOG_OBJECT (decoder, "have %d pending dynamic objects", decoder->pending);
1701 gst_bin_add (GST_BIN_CAST (decoder), decodebin);
1703 decoder->decodebins = g_slist_prepend (decoder->decodebins, decodebin);
1710 post_missing_plugin_error (GST_ELEMENT_CAST (decoder), "decodebin");
1711 GST_ELEMENT_ERROR (decoder, CORE, MISSING_PLUGIN, (NULL),
1712 ("No decodebin element, check your installation"));
1717 gst_object_unref (decodebin);
1718 GST_ELEMENT_ERROR (decoder, CORE, MISSING_PLUGIN, (NULL),
1719 ("No typefind element, decodebin is unusable, check your installation"));
1724 /* signaled when we have a stream and we need to configure the download
1725 * buffering or regular buffering */
1727 type_found (GstElement * typefind, guint probability,
1728 GstCaps * caps, GstURIDecodeBin * decoder)
1730 GstElement *dec_elem, *queue;
1732 const gchar *media_type;
1734 GST_DEBUG_OBJECT (decoder, "typefind found caps %" GST_PTR_FORMAT, caps);
1736 s = gst_caps_get_structure (caps, 0);
1737 media_type = gst_structure_get_name (s);
1739 /* remember if we need download buffering */
1740 decoder->is_download = IS_DOWNLOAD_MEDIA (media_type) && decoder->download;
1741 /* only enable download buffering if the upstream duration is known */
1742 if (decoder->is_download) {
1745 decoder->is_download =
1746 (gst_element_query_duration (typefind, GST_FORMAT_BYTES, &dur)
1750 dec_elem = make_decoder (decoder);
1754 queue = gst_element_factory_make ("queue2", NULL);
1758 g_object_set (queue, "use-buffering", TRUE, NULL);
1759 g_object_set (queue, "ring-buffer-max-size", decoder->ring_buffer_max_size,
1762 GST_DEBUG_OBJECT (decoder, "check media-type %s, %d", media_type,
1765 if (decoder->is_download) {
1766 gchar *temp_template, *filename;
1767 const gchar *tmp_dir, *prgname;
1769 tmp_dir = g_get_tmp_dir ();
1770 prgname = g_get_prgname ();
1771 if (prgname == NULL)
1772 prgname = "GStreamer";
1774 filename = g_strdup_printf ("%s-XXXXXX", prgname);
1776 /* build our filename */
1777 temp_template = g_build_filename (tmp_dir, filename, NULL);
1779 GST_DEBUG_OBJECT (decoder, "enable download buffering in %s (%s, %s, %s)",
1780 temp_template, tmp_dir, prgname, filename);
1782 /* configure progressive download for selected media types */
1783 g_object_set (queue, "temp-template", temp_template, NULL);
1786 g_free (temp_template);
1789 /* Disable max-size-buffers */
1790 g_object_set (queue, "max-size-buffers", 0, NULL);
1792 /* If buffer size or duration are set, set them on the queue2 element */
1793 if (decoder->buffer_size != -1)
1794 g_object_set (queue, "max-size-bytes", decoder->buffer_size, NULL);
1795 if (decoder->buffer_duration != -1)
1796 g_object_set (queue, "max-size-time", decoder->buffer_duration, NULL);
1798 gst_bin_add (GST_BIN_CAST (decoder), queue);
1800 if (!gst_element_link_pads (typefind, "src", queue, "sink"))
1801 goto could_not_link;
1803 /* to force caps on the decodebin element and avoid reparsing stuff by
1804 * typefind. It also avoids a deadlock in the way typefind activates pads in
1805 * the state change */
1806 g_object_set (dec_elem, "sink-caps", caps, NULL);
1808 if (!gst_element_link_pads (queue, "src", dec_elem, "sink"))
1809 goto could_not_link;
1811 /* PLAYING in one go might fail (see bug #632782) */
1812 gst_element_set_state (dec_elem, GST_STATE_PAUSED);
1813 gst_element_set_state (dec_elem, GST_STATE_PLAYING);
1814 gst_element_set_state (queue, GST_STATE_PLAYING);
1816 do_async_done (decoder);
1823 /* error was posted */
1828 GST_ELEMENT_ERROR (decoder, CORE, NEGOTIATION,
1829 (NULL), ("Can't link typefind to decodebin element"));
1834 post_missing_plugin_error (GST_ELEMENT_CAST (decoder), "queue2");
1839 /* setup a streaming source. This will first plug a typefind element to the
1840 * source. After we find the type, we decide to plug a queue2 and continue to
1841 * plug a decodebin starting from the found caps */
1843 setup_streaming (GstURIDecodeBin * decoder)
1845 GstElement *typefind;
1847 /* now create the decoder element */
1848 typefind = gst_element_factory_make ("typefind", NULL);
1852 gst_bin_add (GST_BIN_CAST (decoder), typefind);
1854 if (!gst_element_link_pads (decoder->source, NULL, typefind, "sink"))
1855 goto could_not_link;
1857 decoder->typefind = typefind;
1859 /* connect a signal to find out when the typefind element found
1861 decoder->have_type_id =
1862 g_signal_connect (decoder->typefind, "have-type",
1863 G_CALLBACK (type_found), decoder);
1865 do_async_start (decoder);
1872 post_missing_plugin_error (GST_ELEMENT_CAST (decoder), "typefind");
1873 GST_ELEMENT_ERROR (decoder, CORE, MISSING_PLUGIN, (NULL),
1874 ("No typefind element, check your installation"));
1879 GST_ELEMENT_ERROR (decoder, CORE, NEGOTIATION,
1880 (NULL), ("Can't link source to typefind element"));
1881 gst_bin_remove (GST_BIN_CAST (decoder), typefind);
1882 /* Don't loose the SOURCE flag */
1883 GST_OBJECT_FLAG_SET (decoder, GST_ELEMENT_IS_SOURCE);
1889 free_stream (gpointer value)
1891 g_slice_free (GstURIDecodeBinStream, value);
1894 /* remove source and all related elements */
1896 remove_source (GstURIDecodeBin * bin)
1898 GstElement *source = bin->source;
1901 GST_DEBUG_OBJECT (bin, "removing old src element");
1902 gst_element_set_state (source, GST_STATE_NULL);
1904 if (bin->src_np_sig_id) {
1905 g_signal_handler_disconnect (source, bin->src_np_sig_id);
1906 bin->src_np_sig_id = 0;
1908 if (bin->src_nmp_sig_id) {
1909 g_signal_handler_disconnect (source, bin->src_nmp_sig_id);
1910 bin->src_nmp_sig_id = 0;
1912 gst_bin_remove (GST_BIN_CAST (bin), source);
1916 GST_DEBUG_OBJECT (bin, "removing old queue element");
1917 gst_element_set_state (bin->queue, GST_STATE_NULL);
1918 gst_bin_remove (GST_BIN_CAST (bin), bin->queue);
1921 if (bin->typefind) {
1922 GST_DEBUG_OBJECT (bin, "removing old typefind element");
1923 gst_element_set_state (bin->typefind, GST_STATE_NULL);
1924 gst_bin_remove (GST_BIN_CAST (bin), bin->typefind);
1925 bin->typefind = NULL;
1928 g_hash_table_destroy (bin->streams);
1929 bin->streams = NULL;
1931 /* Don't loose the SOURCE flag */
1932 GST_OBJECT_FLAG_SET (bin, GST_ELEMENT_IS_SOURCE);
1935 /* is called when a dynamic source element created a new pad. */
1937 source_new_pad (GstElement * element, GstPad * pad, GstURIDecodeBin * bin)
1939 GstElement *decoder;
1943 GST_URI_DECODE_BIN_LOCK (bin);
1944 GST_DEBUG_OBJECT (bin, "Found new pad %s.%s in source element %s",
1945 GST_DEBUG_PAD_NAME (pad), GST_ELEMENT_NAME (element));
1947 g_object_get (bin, "caps", &rawcaps, NULL);
1949 rawcaps = DEFAULT_CAPS;
1951 /* if this is a pad with all raw caps, we can expose it */
1952 if (has_all_raw_caps (pad, rawcaps, &is_raw) && is_raw) {
1953 /* it's all raw, create output pads. */
1954 GST_URI_DECODE_BIN_UNLOCK (bin);
1955 gst_caps_unref (rawcaps);
1956 expose_decoded_pad (element, pad, bin);
1959 gst_caps_unref (rawcaps);
1961 /* not raw, create decoder */
1962 decoder = make_decoder (bin);
1966 /* and link to decoder */
1967 if (!gst_element_link_pads (bin->source, NULL, decoder, "sink"))
1968 goto could_not_link;
1970 GST_DEBUG_OBJECT (bin, "linked decoder to new pad");
1972 gst_element_set_state (decoder, GST_STATE_PLAYING);
1973 GST_URI_DECODE_BIN_UNLOCK (bin);
1980 /* error was posted */
1981 GST_URI_DECODE_BIN_UNLOCK (bin);
1986 GST_ELEMENT_ERROR (bin, CORE, NEGOTIATION,
1987 (NULL), ("Can't link source to decoder element"));
1988 GST_URI_DECODE_BIN_UNLOCK (bin);
1993 /* construct and run the source and decoder elements until we found
1994 * all the streams or until a preroll queue has been filled.
1997 setup_source (GstURIDecodeBin * decoder)
1999 gboolean is_raw, have_out, is_dynamic;
2001 GST_DEBUG_OBJECT (decoder, "setup source");
2003 /* delete old src */
2004 remove_source (decoder);
2006 decoder->pending = 0;
2008 /* create and configure an element that can handle the uri */
2009 if (!(decoder->source = gen_source_element (decoder)))
2012 /* state will be merged later - if file is not found, error will be
2013 * handled by the application right after. */
2014 gst_bin_add (GST_BIN_CAST (decoder), decoder->source);
2016 /* notify of the new source used */
2017 g_object_notify (G_OBJECT (decoder), "source");
2019 g_signal_emit (decoder, gst_uri_decode_bin_signals[SIGNAL_SOURCE_SETUP],
2020 0, decoder->source);
2022 /* remove the old decoders now, if any */
2023 remove_decoders (decoder, FALSE);
2025 /* stream admin setup */
2026 decoder->streams = g_hash_table_new_full (NULL, NULL, NULL, free_stream);
2028 /* see if the source element emits raw audio/video all by itself,
2029 * if so, we can create streams for the pads and be done with it.
2030 * Also check that is has source pads, if not, we assume it will
2031 * do everything itself. */
2032 if (!analyse_source (decoder, &is_raw, &have_out, &is_dynamic,
2033 decoder->need_queue))
2034 goto invalid_source;
2037 GST_DEBUG_OBJECT (decoder, "Source provides all raw data");
2038 /* source provides raw data, we added the pads and we can now signal a
2039 * no_more pads because we are done. */
2040 gst_element_no_more_pads (GST_ELEMENT_CAST (decoder));
2043 if (!have_out && !is_dynamic) {
2044 GST_DEBUG_OBJECT (decoder, "Source has no output pads");
2045 /* create a stream to indicate that this uri is handled by a self
2046 * contained element. We are now done. */
2047 add_element_stream (decoder->source, decoder);
2051 GST_DEBUG_OBJECT (decoder, "Source has dynamic output pads");
2052 /* connect a handler for the new-pad signal */
2053 decoder->src_np_sig_id =
2054 g_signal_connect (decoder->source, "pad-added",
2055 G_CALLBACK (source_new_pad), decoder);
2056 decoder->src_nmp_sig_id =
2057 g_signal_connect (decoder->source, "no-more-pads",
2058 G_CALLBACK (source_no_more_pads), decoder);
2059 g_object_set_data (G_OBJECT (decoder->source), "pending",
2060 GINT_TO_POINTER (1));
2063 if (decoder->is_stream) {
2064 GST_DEBUG_OBJECT (decoder, "Setting up streaming");
2065 /* do the stream things here */
2066 if (!setup_streaming (decoder))
2067 goto streaming_failed;
2069 GstElement *dec_elem;
2071 /* no streaming source, we can link now */
2072 GST_DEBUG_OBJECT (decoder, "Plugging decodebin to source");
2074 dec_elem = make_decoder (decoder);
2078 if (!gst_element_link_pads (decoder->source, NULL, dec_elem, "sink"))
2079 goto could_not_link;
2087 /* error message was already posted */
2092 GST_ELEMENT_ERROR (decoder, CORE, FAILED,
2093 (_("Source element is invalid.")), (NULL));
2098 /* message was posted */
2103 /* message was posted */
2108 GST_ELEMENT_ERROR (decoder, CORE, NEGOTIATION,
2109 (NULL), ("Can't link source to decoder element"));
2115 value_list_append_structure_list (GValue * list_val, GstStructure ** first,
2116 GList * structure_list)
2120 for (l = structure_list; l != NULL; l = l->next) {
2121 GValue val = { 0, };
2124 *first = gst_structure_copy ((GstStructure *) l->data);
2126 g_value_init (&val, GST_TYPE_STRUCTURE);
2127 g_value_take_boxed (&val, gst_structure_copy ((GstStructure *) l->data));
2128 gst_value_list_append_value (list_val, &val);
2129 g_value_unset (&val);
2133 /* if it's a redirect message with multiple redirect locations we might
2134 * want to pick a different 'best' location depending on the required
2135 * bitrates and the connection speed */
2137 handle_redirect_message (GstURIDecodeBin * dec, GstMessage * msg)
2139 const GValue *locations_list, *location_val;
2140 GstMessage *new_msg;
2141 GstStructure *new_structure = NULL;
2142 GList *l_good = NULL, *l_neutral = NULL, *l_bad = NULL;
2143 GValue new_list = { 0, };
2145 const GstStructure *structure;
2147 GST_DEBUG_OBJECT (dec, "redirect message: %" GST_PTR_FORMAT, msg);
2148 GST_DEBUG_OBJECT (dec, "connection speed: %u", dec->connection_speed);
2150 structure = gst_message_get_structure (msg);
2151 if (dec->connection_speed == 0 || structure == NULL)
2154 locations_list = gst_structure_get_value (structure, "locations");
2155 if (locations_list == NULL)
2158 size = gst_value_list_get_size (locations_list);
2162 /* maintain existing order as much as possible, just sort references
2163 * with too high a bitrate to the end (the assumption being that if
2164 * bitrates are given they are given for all interesting streams and
2165 * that the you-need-at-least-version-xyz redirect has the same bitrate
2166 * as the lowest referenced redirect alternative) */
2167 for (i = 0; i < size; ++i) {
2168 const GstStructure *s;
2171 location_val = gst_value_list_get_value (locations_list, i);
2172 s = (const GstStructure *) g_value_get_boxed (location_val);
2173 if (!gst_structure_get_int (s, "minimum-bitrate", &bitrate) || bitrate <= 0) {
2174 GST_DEBUG_OBJECT (dec, "no bitrate: %" GST_PTR_FORMAT, s);
2175 l_neutral = g_list_append (l_neutral, (gpointer) s);
2176 } else if (bitrate > dec->connection_speed) {
2177 GST_DEBUG_OBJECT (dec, "bitrate too high: %" GST_PTR_FORMAT, s);
2178 l_bad = g_list_append (l_bad, (gpointer) s);
2179 } else if (bitrate <= dec->connection_speed) {
2180 GST_DEBUG_OBJECT (dec, "bitrate OK: %" GST_PTR_FORMAT, s);
2181 l_good = g_list_append (l_good, (gpointer) s);
2185 g_value_init (&new_list, GST_TYPE_LIST);
2186 value_list_append_structure_list (&new_list, &new_structure, l_good);
2187 value_list_append_structure_list (&new_list, &new_structure, l_neutral);
2188 value_list_append_structure_list (&new_list, &new_structure, l_bad);
2189 gst_structure_set_value (new_structure, "locations", &new_list);
2190 g_value_unset (&new_list);
2192 g_list_free (l_good);
2193 g_list_free (l_neutral);
2194 g_list_free (l_bad);
2196 new_msg = gst_message_new_element (msg->src, new_structure);
2197 gst_message_unref (msg);
2199 GST_DEBUG_OBJECT (dec, "new redirect message: %" GST_PTR_FORMAT, new_msg);
2204 handle_message (GstBin * bin, GstMessage * msg)
2206 if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ELEMENT
2207 && gst_message_has_name (msg, "redirect")) {
2208 /* sort redirect messages based on the connection speed. This simplifies
2209 * the user of this element as it can in most cases just pick the first item
2210 * of the sorted list as a good redirection candidate. It can of course
2211 * choose something else from the list if it has a better way. */
2212 msg = handle_redirect_message (GST_URI_DECODE_BIN (bin), msg);
2214 GST_BIN_CLASS (parent_class)->handle_message (bin, msg);
2217 /* generic struct passed to all query fold methods
2218 * FIXME, move to core.
2229 typedef void (*QueryInitFunction) (GstURIDecodeBin * dec, QueryFold * fold);
2230 typedef void (*QueryDoneFunction) (GstURIDecodeBin * dec, QueryFold * fold);
2232 /* for duration/position we collect all durations/positions and take
2233 * the MAX of all valid results */
2235 decoder_query_init (GstURIDecodeBin * dec, QueryFold * fold)
2239 fold->seekable = TRUE;
2244 decoder_query_duration_fold (const GValue * item, GValue * ret,
2247 GstPad *pad = g_value_get_object (item);
2249 if (gst_pad_query (pad, fold->query)) {
2252 g_value_set_boolean (ret, TRUE);
2254 gst_query_parse_duration (fold->query, NULL, &duration);
2256 GST_DEBUG_OBJECT (item, "got duration %" G_GINT64_FORMAT, duration);
2258 if (duration > fold->max)
2259 fold->max = duration;
2265 decoder_query_duration_done (GstURIDecodeBin * dec, QueryFold * fold)
2269 gst_query_parse_duration (fold->query, &format, NULL);
2270 /* store max in query result */
2271 gst_query_set_duration (fold->query, format, fold->max);
2273 GST_DEBUG ("max duration %" G_GINT64_FORMAT, fold->max);
2277 decoder_query_position_fold (const GValue * item, GValue * ret,
2280 GstPad *pad = g_value_get_object (item);
2282 if (gst_pad_query (pad, fold->query)) {
2285 g_value_set_boolean (ret, TRUE);
2287 gst_query_parse_position (fold->query, NULL, &position);
2289 GST_DEBUG_OBJECT (item, "got position %" G_GINT64_FORMAT, position);
2291 if (position > fold->max)
2292 fold->max = position;
2299 decoder_query_position_done (GstURIDecodeBin * dec, QueryFold * fold)
2303 gst_query_parse_position (fold->query, &format, NULL);
2304 /* store max in query result */
2305 gst_query_set_position (fold->query, format, fold->max);
2307 GST_DEBUG_OBJECT (dec, "max position %" G_GINT64_FORMAT, fold->max);
2311 decoder_query_latency_fold (const GValue * item, GValue * ret, QueryFold * fold)
2313 GstPad *pad = g_value_get_object (item);
2315 if (gst_pad_query (pad, fold->query)) {
2316 GstClockTime min, max;
2319 g_value_set_boolean (ret, TRUE);
2321 gst_query_parse_latency (fold->query, &live, &min, &max);
2323 GST_DEBUG_OBJECT (item,
2324 "got latency min %" GST_TIME_FORMAT ", max %" GST_TIME_FORMAT
2325 ", live %d", GST_TIME_ARGS (min), GST_TIME_ARGS (max), live);
2327 /* for the combined latency we collect the MAX of all min latencies and
2328 * the MIN of all max latencies */
2329 if (min > fold->min)
2331 if (fold->max == -1)
2333 else if (max < fold->max)
2335 if (fold->live == FALSE)
2343 decoder_query_latency_done (GstURIDecodeBin * dec, QueryFold * fold)
2345 /* store max in query result */
2346 gst_query_set_latency (fold->query, fold->live, fold->min, fold->max);
2348 GST_DEBUG_OBJECT (dec,
2349 "latency min %" GST_TIME_FORMAT ", max %" GST_TIME_FORMAT
2350 ", live %d", GST_TIME_ARGS (fold->min), GST_TIME_ARGS (fold->max),
2354 /* we are seekable if all srcpads are seekable */
2356 decoder_query_seeking_fold (const GValue * item, GValue * ret, QueryFold * fold)
2358 GstPad *pad = g_value_get_object (item);
2360 if (gst_pad_query (pad, fold->query)) {
2363 g_value_set_boolean (ret, TRUE);
2364 gst_query_parse_seeking (fold->query, NULL, &seekable, NULL, NULL);
2366 GST_DEBUG_OBJECT (item, "got seekable %d", seekable);
2368 if (fold->seekable == TRUE)
2369 fold->seekable = seekable;
2376 decoder_query_seeking_done (GstURIDecodeBin * dec, QueryFold * fold)
2380 gst_query_parse_seeking (fold->query, &format, NULL, NULL, NULL);
2381 gst_query_set_seeking (fold->query, format, fold->seekable, 0, -1);
2383 GST_DEBUG_OBJECT (dec, "seekable %d", fold->seekable);
2386 /* generic fold, return first valid result */
2388 decoder_query_generic_fold (const GValue * item, GValue * ret, QueryFold * fold)
2390 GstPad *pad = g_value_get_object (item);
2393 if ((res = gst_pad_query (pad, fold->query))) {
2394 g_value_set_boolean (ret, TRUE);
2395 GST_DEBUG_OBJECT (item, "answered query %p", fold->query);
2398 /* and stop as soon as we have a valid result */
2403 /* we're a bin, the default query handler iterates sink elements, which we don't
2404 * have normally. We should just query all source pads.
2407 gst_uri_decode_bin_query (GstElement * element, GstQuery * query)
2409 GstURIDecodeBin *decoder;
2410 gboolean res = FALSE;
2412 GstIteratorFoldFunction fold_func;
2413 QueryInitFunction fold_init = NULL;
2414 QueryDoneFunction fold_done = NULL;
2415 QueryFold fold_data;
2418 decoder = GST_URI_DECODE_BIN (element);
2420 switch (GST_QUERY_TYPE (query)) {
2421 case GST_QUERY_DURATION:
2422 /* iterate and collect durations */
2423 fold_func = (GstIteratorFoldFunction) decoder_query_duration_fold;
2424 fold_init = decoder_query_init;
2425 fold_done = decoder_query_duration_done;
2427 case GST_QUERY_POSITION:
2428 /* iterate and collect durations */
2429 fold_func = (GstIteratorFoldFunction) decoder_query_position_fold;
2430 fold_init = decoder_query_init;
2431 fold_done = decoder_query_position_done;
2433 case GST_QUERY_LATENCY:
2434 /* iterate and collect durations */
2435 fold_func = (GstIteratorFoldFunction) decoder_query_latency_fold;
2436 fold_init = decoder_query_init;
2437 fold_done = decoder_query_latency_done;
2439 case GST_QUERY_SEEKING:
2440 /* iterate and collect durations */
2441 fold_func = (GstIteratorFoldFunction) decoder_query_seeking_fold;
2442 fold_init = decoder_query_init;
2443 fold_done = decoder_query_seeking_done;
2446 fold_func = (GstIteratorFoldFunction) decoder_query_generic_fold;
2450 fold_data.query = query;
2452 g_value_init (&ret, G_TYPE_BOOLEAN);
2453 g_value_set_boolean (&ret, FALSE);
2455 iter = gst_element_iterate_src_pads (element);
2456 GST_DEBUG_OBJECT (element, "Sending query %p (type %d) to src pads",
2457 query, GST_QUERY_TYPE (query));
2460 fold_init (decoder, &fold_data);
2463 GstIteratorResult ires;
2465 ires = gst_iterator_fold (iter, fold_func, &ret, &fold_data);
2468 case GST_ITERATOR_RESYNC:
2469 gst_iterator_resync (iter);
2471 fold_init (decoder, &fold_data);
2472 g_value_set_boolean (&ret, FALSE);
2474 case GST_ITERATOR_OK:
2475 case GST_ITERATOR_DONE:
2476 res = g_value_get_boolean (&ret);
2477 if (fold_done != NULL && res)
2478 fold_done (decoder, &fold_data);
2486 gst_iterator_free (iter);
2491 static GstStateChangeReturn
2492 gst_uri_decode_bin_change_state (GstElement * element,
2493 GstStateChange transition)
2495 GstStateChangeReturn ret;
2496 GstURIDecodeBin *decoder;
2498 decoder = GST_URI_DECODE_BIN (element);
2500 switch (transition) {
2501 case GST_STATE_CHANGE_READY_TO_PAUSED:
2502 if (!setup_source (decoder))
2509 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
2511 switch (transition) {
2512 case GST_STATE_CHANGE_READY_TO_PAUSED:
2513 GST_DEBUG ("ready to paused");
2514 if (ret == GST_STATE_CHANGE_FAILURE)
2517 case GST_STATE_CHANGE_PAUSED_TO_READY:
2518 GST_DEBUG ("paused to ready");
2519 remove_decoders (decoder, FALSE);
2520 remove_source (decoder);
2521 do_async_done (decoder);
2523 case GST_STATE_CHANGE_READY_TO_NULL:
2524 GST_DEBUG ("ready to null");
2525 remove_decoders (decoder, TRUE);
2526 remove_source (decoder);
2536 return GST_STATE_CHANGE_FAILURE;
2540 /* clean up leftover groups */
2541 return GST_STATE_CHANGE_FAILURE;
2546 gst_uri_decode_bin_plugin_init (GstPlugin * plugin)
2548 GST_DEBUG_CATEGORY_INIT (gst_uri_decode_bin_debug, "uridecodebin", 0,
2549 "URI decoder element");
2551 return gst_element_register (plugin, "uridecodebin", GST_RANK_NONE,
2552 GST_TYPE_URI_DECODE_BIN);