/
gsturidecodebin3.c
1155 lines (972 loc) · 34.8 KB
/
gsturidecodebin3.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/* GStreamer
* Copyright (C) <2007> Wim Taymans <wim.taymans@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/* TODO/FIXME:
*
* * BUFFERING MESSAGES
* ** How/Where do we deal with buffering messages from a new/prerolling
* source ? Ideally we want to re-use the same sourcebin ?
* ** Remember last buffering messages per source handler, if the SourceEntry
* group_id is the one being currently outputted on the source ghostpads,
* post the (last) buffering messages.
* If no group_id is being outputted (still prerolling), then output
* the messages directly
*
* * ASYNC HANDLING
* ** URIDECODEBIN3 is not async-aware.
*
* * GAPLESS HANDLING
* ** Correlate group_id and URI to know when/which stream is being outputted/started
*/
/**
* SECTION:element-uridecodebin3
* @title: uridecodebin3
*
* Decodes data from a URI into raw media. It selects a source element that can
* handle the given #GstURIDecodeBin3:uri scheme and connects it to a decodebin.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <string.h>
#include <gst/gst.h>
#include <gst/gst-i18n-plugin.h>
#include <gst/pbutils/missing-plugins.h>
#include "gstplay-enum.h"
#include "gstrawcaps.h"
#include "gstplaybackelements.h"
#include "gstplaybackutils.h"
#define GST_TYPE_URI_DECODE_BIN3 \
(gst_uri_decode_bin3_get_type())
#define GST_URI_DECODE_BIN3(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_URI_DECODE_BIN3,GstURIDecodeBin3))
#define GST_URI_DECODE_BIN3_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_URI_DECODE_BIN3,GstURIDecodeBin3Class))
#define GST_IS_URI_DECODE_BIN3(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_URI_DECODE_BIN3))
#define GST_IS_URI_DECODE_BIN3_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_URI_DECODE_BIN3))
#define GST_URI_DECODE_BIN3_CAST(obj) ((GstURIDecodeBin3 *) (obj))
typedef struct _GstSourceGroup GstSourceGroup;
typedef struct _GstURIDecodeBin3 GstURIDecodeBin3;
typedef struct _GstURIDecodeBin3Class GstURIDecodeBin3Class;
#define GST_URI_DECODE_BIN3_LOCK(dec) (g_mutex_lock(&((GstURIDecodeBin3*)(dec))->lock))
#define GST_URI_DECODE_BIN3_UNLOCK(dec) (g_mutex_unlock(&((GstURIDecodeBin3*)(dec))->lock))
typedef struct _GstPlayItem GstPlayItem;
typedef struct _GstSourceItem GstSourceItem;
typedef struct _GstSourceHandler GstSourceHandler;
typedef struct _OutputPad OutputPad;
/* A structure describing a play item, which travels through the elements
* over time. */
struct _GstPlayItem
{
GstURIDecodeBin3 *uridecodebin;
/* Main URI */
GstSourceItem *main_item;
/* Auxiliary URI */
/* FIXME : Replace by a list later */
GstSourceItem *sub_item;
/* The group_id used to identify this play item via STREAM_START events
* This is the group_id which will be used externally (i.e. rewritten
* to outgoing STREAM_START events and in emitted signals).
* The urisourcebin-specific group_id is located in GstSourceItem */
guint group_id;
/* Is this play item the one being currently outputted by decodebin3
* and on our source ghostpads */
gboolean currently_outputted;
};
struct _GstSourceItem
{
/* The GstPlayItem to which this GstSourceItem belongs to */
GstPlayItem *play_item;
gchar *uri;
/* The urisourcebin controlling this uri
* Can be NULL */
GstSourceHandler *handler;
/* Last buffering information */
gint last_perc;
GstMessage *last_buffering_message;
/* The groupid created by urisourcebin for this uri */
guint internal_groupid;
/* FIXME : Add tag lists and other uri-specific items here ? */
};
/* Structure wrapping everything related to a urisourcebin */
struct _GstSourceHandler
{
GstURIDecodeBin3 *uridecodebin;
GstElement *urisourcebin;
/* Signal handlers */
gulong pad_added_id;
gulong pad_removed_id;
gulong source_setup_id;
gulong about_to_finish_id;
/* TRUE if the controlled urisourcebin was added to uridecodebin */
gboolean active;
/* whether urisourcebin is drained or not.
* Reset if/when setting a new URI */
gboolean drained;
/* Whether urisourcebin posted EOS on all pads and
* there is no pending entry */
gboolean is_eos;
/* TRUE if the urisourcebin handles main item */
gboolean is_main_source;
/* buffering message stored for after switching */
GstMessage *pending_buffering_msg;
};
/* Controls an output source pad */
struct _OutputPad
{
GstURIDecodeBin3 *uridecodebin;
GstPad *target_pad;
GstPad *ghost_pad;
/* Downstream event probe id */
gulong probe_id;
/* TRUE if the pad saw EOS. Reset to FALSE on STREAM_START */
gboolean is_eos;
/* The last seen (i.e. current) group_id
* Can be (guint)-1 if no group_id was seen yet */
guint current_group_id;
};
/**
* GstURIDecodeBin3
*
* uridecodebin3 element struct
*/
struct _GstURIDecodeBin3
{
GstBin parent_instance;
GMutex lock; /* lock for constructing */
/* Properties */
GstElement *source;
guint64 connection_speed; /* In bits/sec (0 = unknown) */
GstCaps *caps;
guint64 buffer_duration; /* When buffering, buffer duration (ns) */
guint buffer_size; /* When buffering, buffer size (bytes) */
gboolean download;
gboolean use_buffering;
guint64 ring_buffer_max_size;
GList *play_items; /* List of GstPlayItem ordered by time of
* creation. Head of list is therefore the
* current (or pending if initial) one being
* outputted */
GstPlayItem *current; /* Currently active GstPlayItem. Can be NULL
* if no entry is active yet (i.e. no source
* pads) */
/* sources.
* FIXME : Replace by a more modular system later on */
GstSourceHandler *main_handler;
GstSourceHandler *sub_handler;
/* URI handling
* FIXME : Switch to a playlist-based API */
gchar *uri;
gboolean uri_changed; /* TRUE if uri changed */
gchar *suburi;
gboolean suburi_changed; /* TRUE if suburi changed */
/* A global decodebin3 that's used to actually do decoding */
GstElement *decodebin;
/* db3 signals */
gulong db_pad_added_id;
gulong db_pad_removed_id;
gulong db_select_stream_id;
gulong db_about_to_finish_id;
GList *output_pads; /* List of OutputPad */
GList *source_handlers; /* List of SourceHandler */
/* Whether we already signalled about-to-finish or not
* FIXME: Track this by group-id ! */
gboolean posted_about_to_finish;
};
static gint
gst_uridecodebin3_select_stream (GstURIDecodeBin3 * dbin,
GstStreamCollection * collection, GstStream * stream)
{
GST_LOG_OBJECT (dbin, "default select-stream, returning -1");
return -1;
}
struct _GstURIDecodeBin3Class
{
GstBinClass parent_class;
gint (*select_stream) (GstURIDecodeBin3 * dbin,
GstStreamCollection * collection, GstStream * stream);
};
GST_DEBUG_CATEGORY_STATIC (gst_uri_decode_bin3_debug);
#define GST_CAT_DEFAULT gst_uri_decode_bin3_debug
/* signals */
enum
{
SIGNAL_SELECT_STREAM,
SIGNAL_SOURCE_SETUP,
SIGNAL_ABOUT_TO_FINISH,
LAST_SIGNAL
};
#if 0
static GstStaticCaps raw_audio_caps = GST_STATIC_CAPS ("audio/x-raw(ANY)");
static GstStaticCaps raw_video_caps = GST_STATIC_CAPS ("video/x-raw(ANY)");
#endif
/* properties */
#define DEFAULT_PROP_URI NULL
#define DEFAULT_PROP_SUBURI NULL
#define DEFAULT_CONNECTION_SPEED 0
#define DEFAULT_CAPS (gst_static_caps_get (&default_raw_caps))
#define DEFAULT_BUFFER_DURATION -1
#define DEFAULT_BUFFER_SIZE -1
#define DEFAULT_DOWNLOAD FALSE
#define DEFAULT_USE_BUFFERING FALSE
#define DEFAULT_RING_BUFFER_MAX_SIZE 0
enum
{
PROP_0,
PROP_URI,
PROP_CURRENT_URI,
PROP_SUBURI,
PROP_CURRENT_SUBURI,
PROP_SOURCE,
PROP_CONNECTION_SPEED,
PROP_BUFFER_SIZE,
PROP_BUFFER_DURATION,
PROP_DOWNLOAD,
PROP_USE_BUFFERING,
PROP_RING_BUFFER_MAX_SIZE,
PROP_CAPS
};
static guint gst_uri_decode_bin3_signals[LAST_SIGNAL] = { 0 };
static GstStaticCaps default_raw_caps = GST_STATIC_CAPS (DEFAULT_RAW_CAPS);
static GstStaticPadTemplate video_src_template =
GST_STATIC_PAD_TEMPLATE ("video_%u",
GST_PAD_SRC,
GST_PAD_SOMETIMES,
GST_STATIC_CAPS_ANY);
static GstStaticPadTemplate audio_src_template =
GST_STATIC_PAD_TEMPLATE ("audio_%u",
GST_PAD_SRC,
GST_PAD_SOMETIMES,
GST_STATIC_CAPS_ANY);
static GstStaticPadTemplate text_src_template =
GST_STATIC_PAD_TEMPLATE ("text_%u",
GST_PAD_SRC,
GST_PAD_SOMETIMES,
GST_STATIC_CAPS_ANY);
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src_%u",
GST_PAD_SRC,
GST_PAD_SOMETIMES,
GST_STATIC_CAPS_ANY);
GType gst_uri_decode_bin3_get_type (void);
#define gst_uri_decode_bin3_parent_class parent_class
G_DEFINE_TYPE (GstURIDecodeBin3, gst_uri_decode_bin3, GST_TYPE_BIN);
#define _do_init \
GST_DEBUG_CATEGORY_INIT (gst_uri_decode_bin3_debug, "uridecodebin3", 0, "URI decoder element 3"); \
playback_element_init (plugin);
GST_ELEMENT_REGISTER_DEFINE_WITH_CODE (uridecodebin3, "uridecodebin3",
GST_RANK_NONE, GST_TYPE_URI_DECODE_BIN3, _do_init);
#define REMOVE_SIGNAL(obj,id) \
if (id) { \
g_signal_handler_disconnect (obj, id); \
id = 0; \
}
static void gst_uri_decode_bin3_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_uri_decode_bin3_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void gst_uri_decode_bin3_finalize (GObject * obj);
static GstSourceHandler *new_source_handler (GstURIDecodeBin3 * uridecodebin,
gboolean is_main);
static GstStateChangeReturn gst_uri_decode_bin3_change_state (GstElement *
element, GstStateChange transition);
static gboolean gst_uri_decodebin3_send_event (GstElement * element,
GstEvent * event);
static gboolean
_gst_int_accumulator (GSignalInvocationHint * ihint,
GValue * return_accu, const GValue * handler_return, gpointer dummy)
{
gint res = g_value_get_int (handler_return);
g_value_set_int (return_accu, res);
if (res == -1)
return TRUE;
return FALSE;
}
static void
gst_uri_decode_bin3_class_init (GstURIDecodeBin3Class * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = G_OBJECT_CLASS (klass);
gstelement_class = GST_ELEMENT_CLASS (klass);
gobject_class->set_property = gst_uri_decode_bin3_set_property;
gobject_class->get_property = gst_uri_decode_bin3_get_property;
gobject_class->finalize = gst_uri_decode_bin3_finalize;
g_object_class_install_property (gobject_class, PROP_URI,
g_param_spec_string ("uri", "URI", "URI to decode",
DEFAULT_PROP_URI, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_CURRENT_URI,
g_param_spec_string ("current-uri", "Current URI",
"The currently playing URI", NULL,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_SUBURI,
g_param_spec_string ("suburi", ".sub-URI", "Optional URI of a subtitle",
NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_CURRENT_SUBURI,
g_param_spec_string ("current-suburi", "Current .sub-URI",
"The currently playing URI of a subtitle",
NULL, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_SOURCE,
g_param_spec_object ("source", "Source", "Source object used",
GST_TYPE_ELEMENT, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_CONNECTION_SPEED,
g_param_spec_uint64 ("connection-speed", "Connection Speed",
"Network connection speed in kbps (0 = unknown)",
0, G_MAXUINT64 / 1000, DEFAULT_CONNECTION_SPEED,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_BUFFER_SIZE,
g_param_spec_int ("buffer-size", "Buffer size (bytes)",
"Buffer size when buffering streams (-1 default value)",
-1, G_MAXINT, DEFAULT_BUFFER_SIZE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_BUFFER_DURATION,
g_param_spec_int64 ("buffer-duration", "Buffer duration (ns)",
"Buffer duration when buffering streams (-1 default value)",
-1, G_MAXINT64, DEFAULT_BUFFER_DURATION,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstURIDecodeBin3::download:
*
* For certain media type, enable download buffering.
*/
g_object_class_install_property (gobject_class, PROP_DOWNLOAD,
g_param_spec_boolean ("download", "Download",
"Attempt download buffering when buffering network streams",
DEFAULT_DOWNLOAD, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstURIDecodeBin3::use-buffering:
*
* Emit BUFFERING messages based on low-/high-percent thresholds of the
* demuxed or parsed data.
* When download buffering is activated and used for the current media
* type, this property does nothing. Otherwise perform buffering on the
* demuxed or parsed media.
*/
g_object_class_install_property (gobject_class, PROP_USE_BUFFERING,
g_param_spec_boolean ("use-buffering", "Use Buffering",
"Perform buffering on demuxed/parsed media",
DEFAULT_USE_BUFFERING, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstURIDecodeBin3::ring-buffer-max-size
*
* The maximum size of the ring buffer in kilobytes. If set to 0, the ring
* buffer is disabled. Default is 0.
*/
g_object_class_install_property (gobject_class, PROP_RING_BUFFER_MAX_SIZE,
g_param_spec_uint64 ("ring-buffer-max-size",
"Max. ring buffer size (bytes)",
"Max. amount of data in the ring buffer (bytes, 0 = ring buffer disabled)",
0, G_MAXUINT, DEFAULT_RING_BUFFER_MAX_SIZE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_CAPS,
g_param_spec_boxed ("caps", "Caps",
"The caps on which to stop decoding. (NULL = default)",
GST_TYPE_CAPS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstURIDecodebin3::select-stream
* @decodebin: a #GstURIDecodebin3
* @collection: a #GstStreamCollection
* @stream: a #GstStream
*
* This signal is emitted whenever @decodebin needs to decide whether
* to expose a @stream of a given @collection.
*
* Note that the prefered way to select streams is to listen to
* GST_MESSAGE_STREAM_COLLECTION on the bus and send a
* GST_EVENT_SELECT_STREAMS with the streams the user wants.
*
* Returns: 1 if the stream should be selected, 0 if it shouldn't be selected.
* A value of -1 (default) lets @decodebin decide what to do with the stream.
* */
gst_uri_decode_bin3_signals[SIGNAL_SELECT_STREAM] =
g_signal_new ("select-stream", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstURIDecodeBin3Class, select_stream),
_gst_int_accumulator, NULL, NULL, G_TYPE_INT, 2,
GST_TYPE_STREAM_COLLECTION, GST_TYPE_STREAM);
/**
* GstURIDecodeBin3::source-setup:
* @bin: the uridecodebin.
* @source: source element
*
* This signal is emitted after a source element has been created, so
* it can be configured by setting additional properties (e.g. set a
* proxy server for an http source, or set the device and read speed for
* an audio cd source).
*/
gst_uri_decode_bin3_signals[SIGNAL_SOURCE_SETUP] =
g_signal_new ("source-setup", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL, G_TYPE_NONE, 1, GST_TYPE_ELEMENT);
/**
* GstURIDecodeBin3::about-to-finish:
*
* This signal is emitted when the data for the selected URI is
* entirely buffered and it is safe to specify another URI.
*/
gst_uri_decode_bin3_signals[SIGNAL_ABOUT_TO_FINISH] =
g_signal_new ("about-to-finish", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL, G_TYPE_NONE, 0, G_TYPE_NONE);
gst_element_class_add_static_pad_template (gstelement_class,
&video_src_template);
gst_element_class_add_static_pad_template (gstelement_class,
&audio_src_template);
gst_element_class_add_static_pad_template (gstelement_class,
&text_src_template);
gst_element_class_add_static_pad_template (gstelement_class, &src_template);
gst_element_class_set_static_metadata (gstelement_class,
"URI Decoder", "Generic/Bin/Decoder",
"Autoplug and decode an URI to raw media",
"Edward Hervey <edward@centricular.com>, Jan Schmidt <jan@centricular.com>");
gstelement_class->change_state = gst_uri_decode_bin3_change_state;
gstelement_class->send_event =
GST_DEBUG_FUNCPTR (gst_uri_decodebin3_send_event);
klass->select_stream = gst_uridecodebin3_select_stream;
}
static GstPadProbeReturn
db_src_probe (GstPad * pad, GstPadProbeInfo * info, OutputPad * output)
{
/* FIXME : IMPLEMENT */
/* EOS : Mark pad as EOS */
/* STREAM_START : Store group_id and check if currently active
* PlayEntry changed */
return GST_PAD_PROBE_OK;
}
static OutputPad *
add_output_pad (GstURIDecodeBin3 * dec, GstPad * target_pad)
{
OutputPad *output;
gchar *pad_name;
GstEvent *stream_start;
output = g_slice_new0 (OutputPad);
GST_LOG_OBJECT (dec, "Created output %p", output);
output->uridecodebin = dec;
output->target_pad = target_pad;
output->current_group_id = (guint) - 1;
pad_name = gst_pad_get_name (target_pad);
output->ghost_pad = gst_ghost_pad_new (pad_name, target_pad);
g_free (pad_name);
gst_pad_set_active (output->ghost_pad, TRUE);
stream_start = gst_pad_get_sticky_event (target_pad,
GST_EVENT_STREAM_START, 0);
if (stream_start) {
gst_pad_store_sticky_event (output->ghost_pad, stream_start);
gst_event_unref (stream_start);
} else {
GST_WARNING_OBJECT (target_pad,
"Exposing pad without stored stream-start event");
}
gst_element_add_pad (GST_ELEMENT (dec), output->ghost_pad);
output->probe_id =
gst_pad_add_probe (output->target_pad,
GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM, (GstPadProbeCallback) db_src_probe,
output, NULL);
/* FIXME: LOCK TO PROTECT PAD LIST */
dec->output_pads = g_list_append (dec->output_pads, output);
return output;
}
static void
db_pad_added_cb (GstElement * element, GstPad * pad, GstURIDecodeBin3 * dec)
{
GST_DEBUG_OBJECT (dec, "Wrapping new pad %s:%s", GST_DEBUG_PAD_NAME (pad));
if (GST_PAD_IS_SRC (pad))
add_output_pad (dec, pad);
}
static void
db_pad_removed_cb (GstElement * element, GstPad * pad, GstURIDecodeBin3 * dec)
{
GList *tmp;
OutputPad *output = NULL;
if (!GST_PAD_IS_SRC (pad))
return;
GST_DEBUG_OBJECT (dec, "pad %s:%s", GST_DEBUG_PAD_NAME (pad));
/* FIXME: LOCK for list access */
for (tmp = dec->output_pads; tmp; tmp = tmp->next) {
OutputPad *cand = (OutputPad *) tmp->data;
if (cand->target_pad == pad) {
output = cand;
dec->output_pads = g_list_delete_link (dec->output_pads, tmp);
break;
}
}
if (output) {
GST_LOG_OBJECT (element, "Removing output %p", output);
/* Remove source ghost pad */
gst_ghost_pad_set_target ((GstGhostPad *) output->ghost_pad, NULL);
gst_element_remove_pad ((GstElement *) dec, output->ghost_pad);
/* FIXME : Update global/current PlayEntry group_id (did we switch ?) */
/* Remove event probe */
gst_pad_remove_probe (output->target_pad, output->probe_id);
g_slice_free (OutputPad, output);
}
}
static gint
db_select_stream_cb (GstElement * decodebin,
GstStreamCollection * collection, GstStream * stream,
GstURIDecodeBin3 * uridecodebin)
{
gint response = -1;
g_signal_emit (uridecodebin,
gst_uri_decode_bin3_signals[SIGNAL_SELECT_STREAM], 0, collection, stream,
&response);
return response;
}
static void
db_about_to_finish_cb (GstElement * decodebin, GstURIDecodeBin3 * uridecodebin)
{
if (!uridecodebin->posted_about_to_finish) {
uridecodebin->posted_about_to_finish = TRUE;
g_signal_emit (uridecodebin,
gst_uri_decode_bin3_signals[SIGNAL_ABOUT_TO_FINISH], 0, NULL);
}
}
static void
gst_uri_decode_bin3_init (GstURIDecodeBin3 * dec)
{
g_mutex_init (&dec->lock);
dec->uri = DEFAULT_PROP_URI;
dec->suburi = DEFAULT_PROP_SUBURI;
dec->connection_speed = DEFAULT_CONNECTION_SPEED;
dec->caps = DEFAULT_CAPS;
dec->buffer_duration = DEFAULT_BUFFER_DURATION;
dec->buffer_size = DEFAULT_BUFFER_SIZE;
dec->download = DEFAULT_DOWNLOAD;
dec->use_buffering = DEFAULT_USE_BUFFERING;
dec->ring_buffer_max_size = DEFAULT_RING_BUFFER_MAX_SIZE;
dec->decodebin = gst_element_factory_make ("decodebin3", NULL);
gst_bin_add (GST_BIN_CAST (dec), dec->decodebin);
dec->db_pad_added_id =
g_signal_connect (dec->decodebin, "pad-added",
G_CALLBACK (db_pad_added_cb), dec);
dec->db_pad_removed_id =
g_signal_connect (dec->decodebin, "pad-removed",
G_CALLBACK (db_pad_removed_cb), dec);
dec->db_select_stream_id =
g_signal_connect (dec->decodebin, "select-stream",
G_CALLBACK (db_select_stream_cb), dec);
dec->db_about_to_finish_id =
g_signal_connect (dec->decodebin, "about-to-finish",
G_CALLBACK (db_about_to_finish_cb), dec);
GST_OBJECT_FLAG_SET (dec, GST_ELEMENT_FLAG_SOURCE);
gst_bin_set_suppressed_flags (GST_BIN (dec),
GST_ELEMENT_FLAG_SOURCE | GST_ELEMENT_FLAG_SINK);
}
static void
gst_uri_decode_bin3_finalize (GObject * obj)
{
GstURIDecodeBin3 *dec = GST_URI_DECODE_BIN3 (obj);
g_mutex_clear (&dec->lock);
g_free (dec->uri);
g_free (dec->suburi);
G_OBJECT_CLASS (parent_class)->finalize (obj);
}
static GstStateChangeReturn
activate_source_item (GstSourceItem * item)
{
GstSourceHandler *handler = item->handler;
if (handler == NULL) {
GST_WARNING ("Can't activate item without a handler");
return GST_STATE_CHANGE_FAILURE;
}
g_object_set (handler->urisourcebin, "uri", item->uri, NULL);
if (!handler->active) {
gst_bin_add ((GstBin *) handler->uridecodebin, handler->urisourcebin);
/* if (!gst_element_sync_state_with_parent (handler->urisourcebin)) */
/* return GST_STATE_CHANGE_FAILURE; */
handler->active = TRUE;
}
return GST_STATE_CHANGE_SUCCESS;
}
static void
src_pad_added_cb (GstElement * element, GstPad * pad,
GstSourceHandler * handler)
{
GstURIDecodeBin3 *uridecodebin;
GstPad *sinkpad = NULL;
GstPadLinkReturn res;
GstPlayItem *current_play_item;
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
uridecodebin = handler->uridecodebin;
current_play_item = uridecodebin->current;
GST_DEBUG_OBJECT (uridecodebin,
"New pad %" GST_PTR_FORMAT " from source %" GST_PTR_FORMAT, pad, element);
/* FIXME: Add probe to unify group_id and detect EOS */
/* Try to link to main sink pad only if it's from a main handler */
if (handler->is_main_source) {
sinkpad = gst_element_get_static_pad (uridecodebin->decodebin, "sink");
if (gst_pad_is_linked (sinkpad)) {
gst_object_unref (sinkpad);
sinkpad = NULL;
}
}
if (sinkpad == NULL)
sinkpad =
gst_element_request_pad_simple (uridecodebin->decodebin, "sink_%u");
if (sinkpad) {
GST_DEBUG_OBJECT (uridecodebin,
"Linking %" GST_PTR_FORMAT " to %" GST_PTR_FORMAT, pad, sinkpad);
res = gst_pad_link (pad, sinkpad);
gst_object_unref (sinkpad);
if (GST_PAD_LINK_FAILED (res))
goto link_failed;
}
/* Activate sub_item after the main source activation was finished */
if (handler->is_main_source && current_play_item->sub_item
&& !current_play_item->sub_item->handler) {
current_play_item->sub_item->handler =
new_source_handler (uridecodebin, FALSE);
ret = activate_source_item (current_play_item->sub_item);
if (ret == GST_STATE_CHANGE_FAILURE)
goto sub_item_activation_failed;
}
return;
link_failed:
{
GST_ERROR_OBJECT (uridecodebin,
"failed to link pad %s:%s to decodebin, reason %s (%d)",
GST_DEBUG_PAD_NAME (pad), gst_pad_link_get_name (res), res);
return;
}
sub_item_activation_failed:
{
GST_ERROR_OBJECT (uridecodebin,
"failed to activate subtitle playback item");
return;
}
}
static void
src_pad_removed_cb (GstElement * element, GstPad * pad,
GstSourceHandler * handler)
{
/* FIXME : IMPLEMENT */
}
static void
src_source_setup_cb (GstElement * element, GstElement * source,
GstSourceHandler * handler)
{
g_signal_emit (handler->uridecodebin,
gst_uri_decode_bin3_signals[SIGNAL_SOURCE_SETUP], 0, source, NULL);
}
static void
src_about_to_finish_cb (GstElement * element, GstSourceHandler * handler)
{
/* FIXME : check if all sources are done */
if (!handler->uridecodebin->posted_about_to_finish) {
handler->uridecodebin->posted_about_to_finish = TRUE;
g_signal_emit (handler->uridecodebin,
gst_uri_decode_bin3_signals[SIGNAL_ABOUT_TO_FINISH], 0, NULL);
}
}
static GstSourceHandler *
new_source_handler (GstURIDecodeBin3 * uridecodebin, gboolean is_main)
{
GstSourceHandler *handler;
handler = g_slice_new0 (GstSourceHandler);
handler->uridecodebin = uridecodebin;
handler->is_main_source = is_main;
handler->urisourcebin = gst_element_factory_make ("urisourcebin", NULL);
/* Set pending properties */
g_object_set (handler->urisourcebin,
"connection-speed", uridecodebin->connection_speed / 1000,
"download", uridecodebin->download,
"use-buffering", uridecodebin->use_buffering,
"buffer-duration", uridecodebin->buffer_duration,
"buffer-size", uridecodebin->buffer_size,
"ring-buffer-max-size", uridecodebin->ring_buffer_max_size, NULL);
handler->pad_added_id =
g_signal_connect (handler->urisourcebin, "pad-added",
(GCallback) src_pad_added_cb, handler);
handler->pad_removed_id =
g_signal_connect (handler->urisourcebin, "pad-removed",
(GCallback) src_pad_removed_cb, handler);
handler->source_setup_id =
g_signal_connect (handler->urisourcebin, "source-setup",
(GCallback) src_source_setup_cb, handler);
handler->about_to_finish_id =
g_signal_connect (handler->urisourcebin, "about-to-finish",
(GCallback) src_about_to_finish_cb, handler);
uridecodebin->source_handlers =
g_list_append (uridecodebin->source_handlers, handler);
return handler;
}
static void
gst_uri_decode_bin3_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstURIDecodeBin3 *dec = GST_URI_DECODE_BIN3 (object);
switch (prop_id) {
case PROP_URI:
if (dec->uri)
g_free (dec->uri);
dec->uri = g_value_dup_string (value);
break;
case PROP_SUBURI:
if (dec->suburi)
g_free (dec->suburi);
dec->suburi = g_value_dup_string (value);
break;
case PROP_CONNECTION_SPEED:
GST_URI_DECODE_BIN3_LOCK (dec);
dec->connection_speed = g_value_get_uint64 (value) * 1000;
GST_URI_DECODE_BIN3_UNLOCK (dec);
break;
case PROP_BUFFER_SIZE:
dec->buffer_size = g_value_get_int (value);
break;
case PROP_BUFFER_DURATION:
dec->buffer_duration = g_value_get_int64 (value);
break;
case PROP_DOWNLOAD:
dec->download = g_value_get_boolean (value);
break;
case PROP_USE_BUFFERING:
dec->use_buffering = g_value_get_boolean (value);
break;
case PROP_RING_BUFFER_MAX_SIZE:
dec->ring_buffer_max_size = g_value_get_uint64 (value);
break;
case PROP_CAPS:
GST_OBJECT_LOCK (dec);
if (dec->caps)
gst_caps_unref (dec->caps);
dec->caps = g_value_dup_boxed (value);
GST_OBJECT_UNLOCK (dec);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_uri_decode_bin3_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstURIDecodeBin3 *dec = GST_URI_DECODE_BIN3 (object);
switch (prop_id) {
case PROP_URI:
{
g_value_set_string (value, dec->uri);
break;
}
case PROP_CURRENT_URI:
{
if (dec->current && dec->current->main_item) {
g_value_set_string (value, dec->current->main_item->uri);
} else {
g_value_set_string (value, NULL);
}
break;
}
case PROP_SUBURI:
{
g_value_set_string (value, dec->suburi);
break;
}
case PROP_CURRENT_SUBURI:
{
if (dec->current && dec->current->sub_item) {
g_value_set_string (value, dec->current->sub_item->uri);
} else {
g_value_set_string (value, NULL);
}
break;
}
case PROP_SOURCE:
{
GST_OBJECT_LOCK (dec);
g_value_set_object (value, dec->source);
GST_OBJECT_UNLOCK (dec);
break;
}
case PROP_CONNECTION_SPEED:
GST_URI_DECODE_BIN3_LOCK (dec);
g_value_set_uint64 (value, dec->connection_speed / 1000);
GST_URI_DECODE_BIN3_UNLOCK (dec);
break;
case PROP_BUFFER_SIZE:
GST_OBJECT_LOCK (dec);
g_value_set_int (value, dec->buffer_size);
GST_OBJECT_UNLOCK (dec);
break;
case PROP_BUFFER_DURATION:
GST_OBJECT_LOCK (dec);
g_value_set_int64 (value, dec->buffer_duration);
GST_OBJECT_UNLOCK (dec);
break;
case PROP_DOWNLOAD:
g_value_set_boolean (value, dec->download);
break;
case PROP_USE_BUFFERING:
g_value_set_boolean (value, dec->use_buffering);
break;
case PROP_RING_BUFFER_MAX_SIZE:
g_value_set_uint64 (value, dec->ring_buffer_max_size);
break;
case PROP_CAPS:
GST_OBJECT_LOCK (dec);
g_value_set_boxed (value, dec->caps);
GST_OBJECT_UNLOCK (dec);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
free_source_handler (GstURIDecodeBin3 * uridecodebin,
GstSourceHandler * handler)
{
GST_LOG_OBJECT (uridecodebin, "source handler %p", handler);
if (handler->active) {
GST_LOG_OBJECT (uridecodebin, "Removing %" GST_PTR_FORMAT,
handler->urisourcebin);
gst_element_set_state (handler->urisourcebin, GST_STATE_NULL);
gst_bin_remove ((GstBin *) uridecodebin, handler->urisourcebin);
}
uridecodebin->source_handlers =
g_list_remove (uridecodebin->source_handlers, handler);
g_slice_free (GstSourceHandler, handler);
}
static GstSourceItem *
new_source_item (GstURIDecodeBin3 * dec, GstPlayItem * item, gchar * uri)
{