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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
// DO NOT EDIT

#[cfg(feature = "v1_20")]
#[cfg_attr(docsrs, doc(cfg(feature = "v1_20")))]
use crate::AppLeakyType;
use crate::{ffi, AppStreamType};
use glib::{
    prelude::*,
    signal::{connect_raw, SignalHandlerId},
    translate::*,
};
use std::boxed::Box as Box_;

glib::wrapper! {
    /// The appsrc element can be used by applications to insert data into a
    /// GStreamer pipeline. Unlike most GStreamer elements, appsrc provides
    /// external API functions.
    ///
    /// appsrc can be used by linking with the libgstapp library to access the
    /// methods directly or by using the appsrc action signals.
    ///
    /// Before operating appsrc, the caps property must be set to fixed caps
    /// describing the format of the data that will be pushed with appsrc. An
    /// exception to this is when pushing buffers with unknown caps, in which case no
    /// caps should be set. This is typically true of file-like sources that push raw
    /// byte buffers. If you don't want to explicitly set the caps, you can use
    /// gst_app_src_push_sample. This method gets the caps associated with the
    /// sample and sets them on the appsrc replacing any previously set caps (if
    /// different from sample's caps).
    ///
    /// The main way of handing data to the appsrc element is by calling the
    /// [`push_buffer()`][Self::push_buffer()] method or by emitting the push-buffer action signal.
    /// This will put the buffer onto a queue from which appsrc will read from in its
    /// streaming thread. It is important to note that data transport will not happen
    /// from the thread that performed the push-buffer call.
    ///
    /// The "max-bytes", "max-buffers" and "max-time" properties control how much
    /// data can be queued in appsrc before appsrc considers the queue full. A
    /// filled internal queue will always signal the "enough-data" signal, which
    /// signals the application that it should stop pushing data into appsrc. The
    /// "block" property will cause appsrc to block the push-buffer method until
    /// free data becomes available again.
    ///
    /// When the internal queue is running out of data, the "need-data" signal is
    /// emitted, which signals the application that it should start pushing more data
    /// into appsrc.
    ///
    /// In addition to the "need-data" and "enough-data" signals, appsrc can emit the
    /// "seek-data" signal when the "stream-mode" property is set to "seekable" or
    /// "random-access". The signal argument will contain the new desired position in
    /// the stream expressed in the unit set with the "format" property. After
    /// receiving the seek-data signal, the application should push-buffers from the
    /// new position.
    ///
    /// These signals allow the application to operate the appsrc in two different
    /// ways:
    ///
    /// The push mode, in which the application repeatedly calls the push-buffer/push-sample
    /// method with a new buffer/sample. Optionally, the queue size in the appsrc
    /// can be controlled with the enough-data and need-data signals by respectively
    /// stopping/starting the push-buffer/push-sample calls. This is a typical
    /// mode of operation for the stream-type "stream" and "seekable". Use this
    /// mode when implementing various network protocols or hardware devices.
    ///
    /// The pull mode, in which the need-data signal triggers the next push-buffer call.
    /// This mode is typically used in the "random-access" stream-type. Use this
    /// mode for file access or other randomly accessible sources. In this mode, a
    /// buffer of exactly the amount of bytes given by the need-data signal should be
    /// pushed into appsrc.
    ///
    /// In all modes, the size property on appsrc should contain the total stream
    /// size in bytes. Setting this property is mandatory in the random-access mode.
    /// For the stream and seekable modes, setting this property is optional but
    /// recommended.
    ///
    /// When the application has finished pushing data into appsrc, it should call
    /// [`end_of_stream()`][Self::end_of_stream()] or emit the end-of-stream action signal. After
    /// this call, no more buffers can be pushed into appsrc until a flushing seek
    /// occurs or the state of the appsrc has gone through READY.
    ///
    /// ## Properties
    ///
    ///
    /// #### `block`
    ///  When max-bytes are queued and after the enough-data signal has been emitted,
    /// block any further push-buffer calls until the amount of queued bytes drops
    /// below the max-bytes limit.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `caps`
    ///  The GstCaps that will negotiated downstream and will be put
    /// on outgoing buffers.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `current-level-buffers`
    ///  The number of currently queued buffers inside appsrc.
    ///
    /// Readable
    ///
    ///
    /// #### `current-level-bytes`
    ///  The number of currently queued bytes inside appsrc.
    ///
    /// Readable
    ///
    ///
    /// #### `current-level-time`
    ///  The amount of currently queued time inside appsrc.
    ///
    /// Readable
    ///
    ///
    /// #### `duration`
    ///  The total duration in nanoseconds of the data stream. If the total duration is known, it
    /// is recommended to configure it with this property.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `emit-signals`
    ///  Make appsrc emit the "need-data", "enough-data" and "seek-data" signals.
    /// This option is by default enabled for backwards compatibility reasons but
    /// can disabled when needed because signal emission is expensive.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `format`
    ///  The format to use for segment events. When the source is producing
    /// timestamped buffers this property should be set to GST_FORMAT_TIME.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `handle-segment-change`
    ///  When enabled, appsrc will check GstSegment in GstSample which was
    /// pushed via [`AppSrc::push_sample()`][crate::AppSrc::push_sample()] or "push-sample" signal action.
    /// If a GstSegment is changed, corresponding segment event will be followed
    /// by next data flow.
    ///
    /// FIXME: currently only GST_FORMAT_TIME format is supported and therefore
    /// GstAppSrc::format should be time. However, possibly [`AppSrc`][crate::AppSrc] can support
    /// other formats.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `is-live`
    ///  Instruct the source to behave like a live source. This includes that it
    /// will only push out buffers in the PLAYING state.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `leaky-type`
    ///  When set to any other value than GST_APP_LEAKY_TYPE_NONE then the appsrc
    /// will drop any buffers that are pushed into it once its internal queue is
    /// full. The selected type defines whether to drop the oldest or new
    /// buffers.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `max-buffers`
    ///  The maximum amount of buffers that can be queued internally.
    /// After the maximum amount of buffers are queued, appsrc will emit the
    /// "enough-data" signal.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `max-bytes`
    ///  The maximum amount of bytes that can be queued internally.
    /// After the maximum amount of bytes are queued, appsrc will emit the
    /// "enough-data" signal.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `max-latency`
    ///  Readable | Writeable
    ///
    ///
    /// #### `max-time`
    ///  The maximum amount of time that can be queued internally.
    /// After the maximum amount of time are queued, appsrc will emit the
    /// "enough-data" signal.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `min-latency`
    ///  The minimum latency of the source. A value of -1 will use the default
    /// latency calculations of `GstBaseSrc`.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `min-percent`
    ///  Make appsrc emit the "need-data" signal when the amount of bytes in the
    /// queue drops below this percentage of max-bytes.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `size`
    ///  The total size in bytes of the data stream. If the total size is known, it
    /// is recommended to configure it with this property.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `stream-type`
    ///  The type of stream that this source is producing. For seekable streams the
    /// application should connect to the seek-data signal.
    ///
    /// Readable | Writeable
    /// <details><summary><h4>BaseSrc</h4></summary>
    ///
    ///
    /// #### `automatic-eos`
    ///  See `gst_base_src_set_automatic_eos()`
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `blocksize`
    ///  Readable | Writeable
    ///
    ///
    /// #### `do-timestamp`
    ///  Readable | Writeable
    ///
    ///
    /// #### `num-buffers`
    ///  Readable | Writeable
    ///
    ///
    /// #### `typefind`
    ///  Readable | Writeable
    /// </details>
    /// <details><summary><h4>Object</h4></summary>
    ///
    ///
    /// #### `name`
    ///  Readable | Writeable | Construct
    ///
    ///
    /// #### `parent`
    ///  The parent of the object. Please note, that when changing the 'parent'
    /// property, we don't emit [`notify`][struct@crate::glib::Object#notify] and [`deep-notify`][struct@crate::gst::Object#deep-notify]
    /// signals due to locking issues. In some cases one can use
    /// `GstBin::element-added` or `GstBin::element-removed` signals on the parent to
    /// achieve a similar effect.
    ///
    /// Readable | Writeable
    /// </details>
    ///
    /// ## Signals
    ///
    ///
    /// #### `end-of-stream`
    ///  Notify `appsrc` that no more buffer are available.
    ///
    /// Action
    ///
    ///
    /// #### `enough-data`
    ///  Signal that the source has enough data. It is recommended that the
    /// application stops calling push-buffer until the need-data signal is
    /// emitted again to avoid excessive buffer queueing.
    ///
    ///
    ///
    ///
    /// #### `need-data`
    ///  Signal that the source needs more data. In the callback or from another
    /// thread you should call push-buffer or end-of-stream.
    ///
    /// `length` is just a hint and when it is set to -1, any number of bytes can be
    /// pushed into `appsrc`.
    ///
    /// You can call push-buffer multiple times until the enough-data signal is
    /// fired.
    ///
    ///
    ///
    ///
    /// #### `push-buffer`
    ///  Adds a buffer to the queue of buffers that the appsrc element will
    /// push to its source pad.
    ///
    /// This function does not take ownership of the buffer, but it takes a
    /// reference so the buffer can be unreffed at any time after calling this
    /// function.
    ///
    /// When the block property is TRUE, this function can block until free space
    /// becomes available in the queue.
    ///
    /// Action
    ///
    ///
    /// #### `push-buffer-list`
    ///  Adds a buffer list to the queue of buffers and buffer lists that the
    /// appsrc element will push to its source pad.
    ///
    /// This function does not take ownership of the buffer list, but it takes a
    /// reference so the buffer list can be unreffed at any time after calling
    /// this function.
    ///
    /// When the block property is TRUE, this function can block until free space
    /// becomes available in the queue.
    ///
    /// Action
    ///
    ///
    /// #### `push-sample`
    ///  Extract a buffer from the provided sample and adds the extracted buffer
    /// to the queue of buffers that the appsrc element will
    /// push to its source pad. This function set the appsrc caps based on the caps
    /// in the sample and reset the caps if they change.
    /// Only the caps and the buffer of the provided sample are used and not
    /// for example the segment in the sample.
    ///
    /// This function does not take ownership of the sample, but it takes a
    /// reference so the sample can be unreffed at any time after calling this
    /// function.
    ///
    /// When the block property is TRUE, this function can block until free space
    /// becomes available in the queue.
    ///
    /// Action
    ///
    ///
    /// #### `seek-data`
    ///  Seek to the given offset. The next push-buffer should produce buffers from
    /// the new `offset`.
    /// This callback is only called for seekable stream types.
    ///
    ///
    /// <details><summary><h4>Element</h4></summary>
    ///
    ///
    /// #### `no-more-pads`
    ///  This signals that the element will not generate more dynamic pads.
    /// Note that this signal will usually be emitted from the context of
    /// the streaming thread.
    ///
    ///
    ///
    ///
    /// #### `pad-added`
    ///  a new `GstPad` has been added to the element. Note that this signal will
    /// usually be emitted from the context of the streaming thread. Also keep in
    /// mind that if you add new elements to the pipeline in the signal handler
    /// you will need to set them to the desired target state with
    /// [`ElementExtManual::set_state()`][crate::gst::prelude::ElementExtManual::set_state()] or [`ElementExtManual::sync_state_with_parent()`][crate::gst::prelude::ElementExtManual::sync_state_with_parent()].
    ///
    ///
    ///
    ///
    /// #### `pad-removed`
    ///  a `GstPad` has been removed from the element
    ///
    ///
    /// </details>
    /// <details><summary><h4>Object</h4></summary>
    ///
    ///
    /// #### `deep-notify`
    ///  The deep notify signal is used to be notified of property changes. It is
    /// typically attached to the toplevel bin to receive notifications from all
    /// the elements contained in that bin.
    ///
    /// Detailed
    /// </details>
    ///
    /// # Implements
    ///
    /// [`trait@gst::prelude::ElementExt`], [`trait@gst::prelude::ObjectExt`], [`trait@glib::ObjectExt`], [`trait@gst::prelude::URIHandlerExt`]
    #[doc(alias = "GstAppSrc")]
    pub struct AppSrc(Object<ffi::GstAppSrc, ffi::GstAppSrcClass>) @extends gst::Element, gst::Object, @implements gst::URIHandler;

    match fn {
        type_ => || ffi::gst_app_src_get_type(),
    }
}

impl AppSrc {
    /// Indicates to the appsrc element that the last buffer queued in the
    /// element is the last buffer of the stream.
    ///
    /// # Returns
    ///
    /// [`gst::FlowReturn::Ok`][crate::gst::FlowReturn::Ok] when the EOS was successfully queued.
    /// [`gst::FlowReturn::Flushing`][crate::gst::FlowReturn::Flushing] when `self` is not PAUSED or PLAYING.
    #[doc(alias = "gst_app_src_end_of_stream")]
    pub fn end_of_stream(&self) -> Result<gst::FlowSuccess, gst::FlowError> {
        unsafe { try_from_glib(ffi::gst_app_src_end_of_stream(self.to_glib_none().0)) }
    }

    /// Get the configured caps on `self`.
    ///
    /// # Returns
    ///
    /// the [`gst::Caps`][crate::gst::Caps] produced by the source. `gst_caps_unref()` after usage.
    #[doc(alias = "gst_app_src_get_caps")]
    #[doc(alias = "get_caps")]
    pub fn caps(&self) -> Option<gst::Caps> {
        unsafe { from_glib_full(ffi::gst_app_src_get_caps(self.to_glib_none().0)) }
    }

    /// Get the number of currently queued buffers inside `self`.
    ///
    /// # Returns
    ///
    /// The number of currently queued buffers.
    #[cfg(feature = "v1_20")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v1_20")))]
    #[doc(alias = "gst_app_src_get_current_level_buffers")]
    #[doc(alias = "get_current_level_buffers")]
    #[doc(alias = "current-level-buffers")]
    pub fn current_level_buffers(&self) -> u64 {
        unsafe { ffi::gst_app_src_get_current_level_buffers(self.to_glib_none().0) }
    }

    /// Get the number of currently queued bytes inside `self`.
    ///
    /// # Returns
    ///
    /// The number of currently queued bytes.
    #[doc(alias = "gst_app_src_get_current_level_bytes")]
    #[doc(alias = "get_current_level_bytes")]
    #[doc(alias = "current-level-bytes")]
    pub fn current_level_bytes(&self) -> u64 {
        unsafe { ffi::gst_app_src_get_current_level_bytes(self.to_glib_none().0) }
    }

    /// Get the amount of currently queued time inside `self`.
    ///
    /// # Returns
    ///
    /// The amount of currently queued time.
    #[cfg(feature = "v1_20")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v1_20")))]
    #[doc(alias = "gst_app_src_get_current_level_time")]
    #[doc(alias = "get_current_level_time")]
    #[doc(alias = "current-level-time")]
    pub fn current_level_time(&self) -> Option<gst::ClockTime> {
        unsafe {
            from_glib(ffi::gst_app_src_get_current_level_time(
                self.to_glib_none().0,
            ))
        }
    }

    /// Get the duration of the stream in nanoseconds. A value of GST_CLOCK_TIME_NONE means that the duration is
    /// not known.
    ///
    /// # Returns
    ///
    /// the duration of the stream previously set with [`set_duration()`][Self::set_duration()];
    #[doc(alias = "gst_app_src_get_duration")]
    #[doc(alias = "get_duration")]
    pub fn duration(&self) -> Option<gst::ClockTime> {
        unsafe { from_glib(ffi::gst_app_src_get_duration(self.to_glib_none().0)) }
    }

    /// Returns the currently set [`AppLeakyType`][crate::AppLeakyType]. See [`set_leaky_type()`][Self::set_leaky_type()]
    /// for more details.
    ///
    /// # Returns
    ///
    /// The currently set [`AppLeakyType`][crate::AppLeakyType].
    #[cfg(feature = "v1_20")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v1_20")))]
    #[doc(alias = "gst_app_src_get_leaky_type")]
    #[doc(alias = "get_leaky_type")]
    #[doc(alias = "leaky-type")]
    pub fn leaky_type(&self) -> AppLeakyType {
        unsafe { from_glib(ffi::gst_app_src_get_leaky_type(self.to_glib_none().0)) }
    }

    /// Get the maximum amount of buffers that can be queued in `self`.
    ///
    /// # Returns
    ///
    /// The maximum amount of buffers that can be queued.
    #[cfg(feature = "v1_20")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v1_20")))]
    #[doc(alias = "gst_app_src_get_max_buffers")]
    #[doc(alias = "get_max_buffers")]
    #[doc(alias = "max-buffers")]
    pub fn max_buffers(&self) -> u64 {
        unsafe { ffi::gst_app_src_get_max_buffers(self.to_glib_none().0) }
    }

    /// Get the maximum amount of bytes that can be queued in `self`.
    ///
    /// # Returns
    ///
    /// The maximum amount of bytes that can be queued.
    #[doc(alias = "gst_app_src_get_max_bytes")]
    #[doc(alias = "get_max_bytes")]
    #[doc(alias = "max-bytes")]
    pub fn max_bytes(&self) -> u64 {
        unsafe { ffi::gst_app_src_get_max_bytes(self.to_glib_none().0) }
    }

    /// Get the maximum amount of time that can be queued in `self`.
    ///
    /// # Returns
    ///
    /// The maximum amount of time that can be queued.
    #[cfg(feature = "v1_20")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v1_20")))]
    #[doc(alias = "gst_app_src_get_max_time")]
    #[doc(alias = "get_max_time")]
    #[doc(alias = "max-time")]
    pub fn max_time(&self) -> Option<gst::ClockTime> {
        unsafe { from_glib(ffi::gst_app_src_get_max_time(self.to_glib_none().0)) }
    }

    /// Get the size of the stream in bytes. A value of -1 means that the size is
    /// not known.
    ///
    /// # Returns
    ///
    /// the size of the stream previously set with [`set_size()`][Self::set_size()];
    #[doc(alias = "gst_app_src_get_size")]
    #[doc(alias = "get_size")]
    pub fn size(&self) -> i64 {
        unsafe { ffi::gst_app_src_get_size(self.to_glib_none().0) }
    }

    /// Get the stream type. Control the stream type of `self`
    /// with [`set_stream_type()`][Self::set_stream_type()].
    ///
    /// # Returns
    ///
    /// the stream type.
    #[doc(alias = "gst_app_src_get_stream_type")]
    #[doc(alias = "get_stream_type")]
    #[doc(alias = "stream-type")]
    pub fn stream_type(&self) -> AppStreamType {
        unsafe { from_glib(ffi::gst_app_src_get_stream_type(self.to_glib_none().0)) }
    }

    /// Adds a buffer to the queue of buffers that the appsrc element will
    /// push to its source pad. This function takes ownership of the buffer.
    ///
    /// When the block property is TRUE, this function can block until free
    /// space becomes available in the queue.
    /// ## `buffer`
    /// a [`gst::Buffer`][crate::gst::Buffer] to push
    ///
    /// # Returns
    ///
    /// [`gst::FlowReturn::Ok`][crate::gst::FlowReturn::Ok] when the buffer was successfully queued.
    /// [`gst::FlowReturn::Flushing`][crate::gst::FlowReturn::Flushing] when `self` is not PAUSED or PLAYING.
    /// [`gst::FlowReturn::Eos`][crate::gst::FlowReturn::Eos] when EOS occurred.
    #[doc(alias = "gst_app_src_push_buffer")]
    pub fn push_buffer(&self, buffer: gst::Buffer) -> Result<gst::FlowSuccess, gst::FlowError> {
        unsafe {
            try_from_glib(ffi::gst_app_src_push_buffer(
                self.to_glib_none().0,
                buffer.into_glib_ptr(),
            ))
        }
    }

    /// Adds a buffer list to the queue of buffers and buffer lists that the
    /// appsrc element will push to its source pad. This function takes ownership
    /// of `buffer_list`.
    ///
    /// When the block property is TRUE, this function can block until free
    /// space becomes available in the queue.
    /// ## `buffer_list`
    /// a [`gst::BufferList`][crate::gst::BufferList] to push
    ///
    /// # Returns
    ///
    /// [`gst::FlowReturn::Ok`][crate::gst::FlowReturn::Ok] when the buffer list was successfully queued.
    /// [`gst::FlowReturn::Flushing`][crate::gst::FlowReturn::Flushing] when `self` is not PAUSED or PLAYING.
    /// [`gst::FlowReturn::Eos`][crate::gst::FlowReturn::Eos] when EOS occurred.
    #[doc(alias = "gst_app_src_push_buffer_list")]
    pub fn push_buffer_list(
        &self,
        buffer_list: gst::BufferList,
    ) -> Result<gst::FlowSuccess, gst::FlowError> {
        unsafe {
            try_from_glib(ffi::gst_app_src_push_buffer_list(
                self.to_glib_none().0,
                buffer_list.into_glib_ptr(),
            ))
        }
    }

    /// Extract a buffer from the provided sample and adds it to the queue of
    /// buffers that the appsrc element will push to its source pad. Any
    /// previous caps that were set on appsrc will be replaced by the caps
    /// associated with the sample if not equal.
    ///
    /// This function does not take ownership of the
    /// sample so the sample needs to be unreffed after calling this function.
    ///
    /// When the block property is TRUE, this function can block until free
    /// space becomes available in the queue.
    /// ## `sample`
    /// a [`gst::Sample`][crate::gst::Sample] from which buffer and caps may be
    /// extracted
    ///
    /// # Returns
    ///
    /// [`gst::FlowReturn::Ok`][crate::gst::FlowReturn::Ok] when the buffer was successfully queued.
    /// [`gst::FlowReturn::Flushing`][crate::gst::FlowReturn::Flushing] when `self` is not PAUSED or PLAYING.
    /// [`gst::FlowReturn::Eos`][crate::gst::FlowReturn::Eos] when EOS occurred.
    #[doc(alias = "gst_app_src_push_sample")]
    pub fn push_sample(&self, sample: &gst::Sample) -> Result<gst::FlowSuccess, gst::FlowError> {
        unsafe {
            try_from_glib(ffi::gst_app_src_push_sample(
                self.to_glib_none().0,
                sample.to_glib_none().0,
            ))
        }
    }

    //#[doc(alias = "gst_app_src_set_callbacks")]
    //pub fn set_callbacks(&self, callbacks: /*Ignored*/&mut AppSrcCallbacks, user_data: /*Unimplemented*/Option<Basic: Pointer>) {
    //    unsafe { TODO: call ffi:gst_app_src_set_callbacks() }
    //}

    /// Set the capabilities on the appsrc element. This function takes
    /// a copy of the caps structure. After calling this method, the source will
    /// only produce caps that match `caps`. `caps` must be fixed and the caps on the
    /// buffers must match the caps or left NULL.
    /// ## `caps`
    /// caps to set
    #[doc(alias = "gst_app_src_set_caps")]
    #[doc(alias = "caps")]
    pub fn set_caps(&self, caps: Option<&gst::Caps>) {
        unsafe {
            ffi::gst_app_src_set_caps(self.to_glib_none().0, caps.to_glib_none().0);
        }
    }

    /// Set the duration of the stream in nanoseconds. A value of GST_CLOCK_TIME_NONE means that the duration is
    /// not known.
    /// ## `duration`
    /// the duration to set
    #[doc(alias = "gst_app_src_set_duration")]
    #[doc(alias = "duration")]
    pub fn set_duration(&self, duration: impl Into<Option<gst::ClockTime>>) {
        unsafe {
            ffi::gst_app_src_set_duration(self.to_glib_none().0, duration.into().into_glib());
        }
    }

    /// When set to any other value than GST_APP_LEAKY_TYPE_NONE then the appsrc
    /// will drop any buffers that are pushed into it once its internal queue is
    /// full. The selected type defines whether to drop the oldest or new
    /// buffers.
    /// ## `leaky`
    /// the [`AppLeakyType`][crate::AppLeakyType]
    #[cfg(feature = "v1_20")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v1_20")))]
    #[doc(alias = "gst_app_src_set_leaky_type")]
    #[doc(alias = "leaky-type")]
    pub fn set_leaky_type(&self, leaky: AppLeakyType) {
        unsafe {
            ffi::gst_app_src_set_leaky_type(self.to_glib_none().0, leaky.into_glib());
        }
    }

    /// Set the maximum amount of buffers that can be queued in `self`.
    /// After the maximum amount of buffers are queued, `self` will emit the
    /// "enough-data" signal.
    /// ## `max`
    /// the maximum number of buffers to queue
    #[cfg(feature = "v1_20")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v1_20")))]
    #[doc(alias = "gst_app_src_set_max_buffers")]
    #[doc(alias = "max-buffers")]
    pub fn set_max_buffers(&self, max: u64) {
        unsafe {
            ffi::gst_app_src_set_max_buffers(self.to_glib_none().0, max);
        }
    }

    /// Set the maximum amount of bytes that can be queued in `self`.
    /// After the maximum amount of bytes are queued, `self` will emit the
    /// "enough-data" signal.
    /// ## `max`
    /// the maximum number of bytes to queue
    #[doc(alias = "gst_app_src_set_max_bytes")]
    #[doc(alias = "max-bytes")]
    pub fn set_max_bytes(&self, max: u64) {
        unsafe {
            ffi::gst_app_src_set_max_bytes(self.to_glib_none().0, max);
        }
    }

    /// Set the maximum amount of time that can be queued in `self`.
    /// After the maximum amount of time are queued, `self` will emit the
    /// "enough-data" signal.
    /// ## `max`
    /// the maximum amonut of time to queue
    #[cfg(feature = "v1_20")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v1_20")))]
    #[doc(alias = "gst_app_src_set_max_time")]
    #[doc(alias = "max-time")]
    pub fn set_max_time(&self, max: impl Into<Option<gst::ClockTime>>) {
        unsafe {
            ffi::gst_app_src_set_max_time(self.to_glib_none().0, max.into().into_glib());
        }
    }

    /// Set the size of the stream in bytes. A value of -1 means that the size is
    /// not known.
    /// ## `size`
    /// the size to set
    #[doc(alias = "gst_app_src_set_size")]
    #[doc(alias = "size")]
    pub fn set_size(&self, size: i64) {
        unsafe {
            ffi::gst_app_src_set_size(self.to_glib_none().0, size);
        }
    }

    /// Set the stream type on `self`. For seekable streams, the "seek" signal must
    /// be connected to.
    ///
    /// A stream_type stream
    /// ## `type_`
    /// the new state
    #[doc(alias = "gst_app_src_set_stream_type")]
    #[doc(alias = "stream-type")]
    pub fn set_stream_type(&self, type_: AppStreamType) {
        unsafe {
            ffi::gst_app_src_set_stream_type(self.to_glib_none().0, type_.into_glib());
        }
    }

    /// When max-bytes are queued and after the enough-data signal has been emitted,
    /// block any further push-buffer calls until the amount of queued bytes drops
    /// below the max-bytes limit.
    pub fn is_block(&self) -> bool {
        ObjectExt::property(self, "block")
    }

    /// When max-bytes are queued and after the enough-data signal has been emitted,
    /// block any further push-buffer calls until the amount of queued bytes drops
    /// below the max-bytes limit.
    pub fn set_block(&self, block: bool) {
        ObjectExt::set_property(self, "block", block)
    }

    /// The format to use for segment events. When the source is producing
    /// timestamped buffers this property should be set to GST_FORMAT_TIME.
    pub fn format(&self) -> gst::Format {
        ObjectExt::property(self, "format")
    }

    /// The format to use for segment events. When the source is producing
    /// timestamped buffers this property should be set to GST_FORMAT_TIME.
    pub fn set_format(&self, format: gst::Format) {
        ObjectExt::set_property(self, "format", format)
    }

    /// When enabled, appsrc will check GstSegment in GstSample which was
    /// pushed via [`push_sample()`][Self::push_sample()] or "push-sample" signal action.
    /// If a GstSegment is changed, corresponding segment event will be followed
    /// by next data flow.
    ///
    /// FIXME: currently only GST_FORMAT_TIME format is supported and therefore
    /// GstAppSrc::format should be time. However, possibly [`AppSrc`][crate::AppSrc] can support
    /// other formats.
    #[cfg(feature = "v1_18")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v1_18")))]
    #[doc(alias = "handle-segment-change")]
    pub fn is_handle_segment_change(&self) -> bool {
        ObjectExt::property(self, "handle-segment-change")
    }

    /// When enabled, appsrc will check GstSegment in GstSample which was
    /// pushed via [`push_sample()`][Self::push_sample()] or "push-sample" signal action.
    /// If a GstSegment is changed, corresponding segment event will be followed
    /// by next data flow.
    ///
    /// FIXME: currently only GST_FORMAT_TIME format is supported and therefore
    /// GstAppSrc::format should be time. However, possibly [`AppSrc`][crate::AppSrc] can support
    /// other formats.
    #[cfg(feature = "v1_18")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v1_18")))]
    #[doc(alias = "handle-segment-change")]
    pub fn set_handle_segment_change(&self, handle_segment_change: bool) {
        ObjectExt::set_property(self, "handle-segment-change", handle_segment_change)
    }

    /// Instruct the source to behave like a live source. This includes that it
    /// will only push out buffers in the PLAYING state.
    #[doc(alias = "is-live")]
    pub fn is_live(&self) -> bool {
        ObjectExt::property(self, "is-live")
    }

    /// Instruct the source to behave like a live source. This includes that it
    /// will only push out buffers in the PLAYING state.
    #[doc(alias = "is-live")]
    pub fn set_is_live(&self, is_live: bool) {
        ObjectExt::set_property(self, "is-live", is_live)
    }

    #[doc(alias = "max-latency")]
    pub fn max_latency(&self) -> i64 {
        ObjectExt::property(self, "max-latency")
    }

    #[doc(alias = "max-latency")]
    pub fn set_max_latency(&self, max_latency: i64) {
        ObjectExt::set_property(self, "max-latency", max_latency)
    }

    /// The minimum latency of the source. A value of -1 will use the default
    /// latency calculations of `GstBaseSrc`.
    #[doc(alias = "min-latency")]
    pub fn min_latency(&self) -> i64 {
        ObjectExt::property(self, "min-latency")
    }

    /// The minimum latency of the source. A value of -1 will use the default
    /// latency calculations of `GstBaseSrc`.
    #[doc(alias = "min-latency")]
    pub fn set_min_latency(&self, min_latency: i64) {
        ObjectExt::set_property(self, "min-latency", min_latency)
    }

    /// Make appsrc emit the "need-data" signal when the amount of bytes in the
    /// queue drops below this percentage of max-bytes.
    #[doc(alias = "min-percent")]
    pub fn min_percent(&self) -> u32 {
        ObjectExt::property(self, "min-percent")
    }

    /// Make appsrc emit the "need-data" signal when the amount of bytes in the
    /// queue drops below this percentage of max-bytes.
    #[doc(alias = "min-percent")]
    pub fn set_min_percent(&self, min_percent: u32) {
        ObjectExt::set_property(self, "min-percent", min_percent)
    }

    #[doc(alias = "block")]
    pub fn connect_block_notify<F: Fn(&Self) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_block_trampoline<F: Fn(&AppSrc) + Send + Sync + 'static>(
            this: *mut ffi::GstAppSrc,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::block\0".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_block_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "caps")]
    pub fn connect_caps_notify<F: Fn(&Self) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_caps_trampoline<F: Fn(&AppSrc) + Send + Sync + 'static>(
            this: *mut ffi::GstAppSrc,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::caps\0".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_caps_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[cfg(feature = "v1_20")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v1_20")))]
    #[doc(alias = "current-level-buffers")]
    pub fn connect_current_level_buffers_notify<F: Fn(&Self) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_current_level_buffers_trampoline<
            F: Fn(&AppSrc) + Send + Sync + 'static,
        >(
            this: *mut ffi::GstAppSrc,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::current-level-buffers\0".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_current_level_buffers_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "current-level-bytes")]
    pub fn connect_current_level_bytes_notify<F: Fn(&Self) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_current_level_bytes_trampoline<
            F: Fn(&AppSrc) + Send + Sync + 'static,
        >(
            this: *mut ffi::GstAppSrc,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::current-level-bytes\0".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_current_level_bytes_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[cfg(feature = "v1_20")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v1_20")))]
    #[doc(alias = "current-level-time")]
    pub fn connect_current_level_time_notify<F: Fn(&Self) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_current_level_time_trampoline<
            F: Fn(&AppSrc) + Send + Sync + 'static,
        >(
            this: *mut ffi::GstAppSrc,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::current-level-time\0".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_current_level_time_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "duration")]
    pub fn connect_duration_notify<F: Fn(&Self) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_duration_trampoline<F: Fn(&AppSrc) + Send + Sync + 'static>(
            this: *mut ffi::GstAppSrc,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::duration\0".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_duration_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "format")]
    pub fn connect_format_notify<F: Fn(&Self) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_format_trampoline<F: Fn(&AppSrc) + Send + Sync + 'static>(
            this: *mut ffi::GstAppSrc,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::format\0".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_format_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[cfg(feature = "v1_18")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v1_18")))]
    #[doc(alias = "handle-segment-change")]
    pub fn connect_handle_segment_change_notify<F: Fn(&Self) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_handle_segment_change_trampoline<
            F: Fn(&AppSrc) + Send + Sync + 'static,
        >(
            this: *mut ffi::GstAppSrc,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::handle-segment-change\0".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_handle_segment_change_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "is-live")]
    pub fn connect_is_live_notify<F: Fn(&Self) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_is_live_trampoline<F: Fn(&AppSrc) + Send + Sync + 'static>(
            this: *mut ffi::GstAppSrc,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::is-live\0".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_is_live_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[cfg(feature = "v1_20")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v1_20")))]
    #[doc(alias = "leaky-type")]
    pub fn connect_leaky_type_notify<F: Fn(&Self) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_leaky_type_trampoline<
            F: Fn(&AppSrc) + Send + Sync + 'static,
        >(
            this: *mut ffi::GstAppSrc,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::leaky-type\0".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_leaky_type_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[cfg(feature = "v1_20")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v1_20")))]
    #[doc(alias = "max-buffers")]
    pub fn connect_max_buffers_notify<F: Fn(&Self) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_max_buffers_trampoline<
            F: Fn(&AppSrc) + Send + Sync + 'static,
        >(
            this: *mut ffi::GstAppSrc,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::max-buffers\0".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_max_buffers_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "max-bytes")]
    pub fn connect_max_bytes_notify<F: Fn(&Self) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_max_bytes_trampoline<F: Fn(&AppSrc) + Send + Sync + 'static>(
            this: *mut ffi::GstAppSrc,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::max-bytes\0".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_max_bytes_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "max-latency")]
    pub fn connect_max_latency_notify<F: Fn(&Self) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_max_latency_trampoline<
            F: Fn(&AppSrc) + Send + Sync + 'static,
        >(
            this: *mut ffi::GstAppSrc,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::max-latency\0".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_max_latency_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[cfg(feature = "v1_20")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v1_20")))]
    #[doc(alias = "max-time")]
    pub fn connect_max_time_notify<F: Fn(&Self) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_max_time_trampoline<F: Fn(&AppSrc) + Send + Sync + 'static>(
            this: *mut ffi::GstAppSrc,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::max-time\0".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_max_time_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "min-latency")]
    pub fn connect_min_latency_notify<F: Fn(&Self) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_min_latency_trampoline<
            F: Fn(&AppSrc) + Send + Sync + 'static,
        >(
            this: *mut ffi::GstAppSrc,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::min-latency\0".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_min_latency_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "min-percent")]
    pub fn connect_min_percent_notify<F: Fn(&Self) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_min_percent_trampoline<
            F: Fn(&AppSrc) + Send + Sync + 'static,
        >(
            this: *mut ffi::GstAppSrc,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::min-percent\0".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_min_percent_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "size")]
    pub fn connect_size_notify<F: Fn(&Self) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_size_trampoline<F: Fn(&AppSrc) + Send + Sync + 'static>(
            this: *mut ffi::GstAppSrc,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::size\0".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_size_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "stream-type")]
    pub fn connect_stream_type_notify<F: Fn(&Self) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_stream_type_trampoline<
            F: Fn(&AppSrc) + Send + Sync + 'static,
        >(
            this: *mut ffi::GstAppSrc,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::stream-type\0".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_stream_type_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

unsafe impl Send for AppSrc {}
unsafe impl Sync for AppSrc {}