docs/libs/html/GstCollectPads.html


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
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>GStreamer 1.0 Library Reference Manual: GstCollectPads</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
<link rel="home" href="index.html" title="GStreamer 1.0 Library Reference Manual">
<link rel="up" href="gstreamer-base.html" title="GStreamer Base and Utillity Classes">
<link rel="prev" href="gstreamer-libs-GstByteWriter.html" title="GstByteWriter">
<link rel="next" href="gstreamer-libs-GstFlowCombiner.html" title="GstFlowCombiner">
<meta name="generator" content="GTK-Doc V1.20 (XML mode)">
<link rel="stylesheet" href="style.css" type="text/css">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="10"><tr valign="middle">
<td width="100%" align="left" class="shortcuts">
<a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span> 
                  <a href="#GstCollectPads.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span> 
                  <a href="#GstCollectPads.object-hierarchy" class="shortcut">Object Hierarchy</a></span>
</td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
<td><a accesskey="u" href="gstreamer-base.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td>
<td><a accesskey="p" href="gstreamer-libs-GstByteWriter.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td>
<td><a accesskey="n" href="gstreamer-libs-GstFlowCombiner.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td>
</tr></table>
<div class="refentry">
<a name="GstCollectPads"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="GstCollectPads.top_of_page"></a>GstCollectPads</span></h2>
<p>GstCollectPads — manages a set of pads that operate in collect mode</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="GstCollectPads.functions"></a><h2>Functions</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="GstCollectPads.html#GstCollectDataDestroyNotify" title="GstCollectDataDestroyNotify ()">*GstCollectDataDestroyNotify</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="GstCollectPads.html#GstCollectPadsBufferFunction" title="GstCollectPadsBufferFunction ()">*GstCollectPadsBufferFunction</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="GstCollectPads.html#GstCollectPadsClipFunction" title="GstCollectPadsClipFunction ()">*GstCollectPadsClipFunction</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="GstCollectPads.html#GstCollectPadsCompareFunction" title="GstCollectPadsCompareFunction ()">*GstCollectPadsCompareFunction</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="GstCollectPads.html#GstCollectPadsEventFunction" title="GstCollectPadsEventFunction ()">*GstCollectPadsEventFunction</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="GstCollectPads.html#GstCollectPadsFlushFunction" title="GstCollectPadsFlushFunction ()">*GstCollectPadsFlushFunction</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="GstCollectPads.html#GstCollectPadsQueryFunction" title="GstCollectPadsQueryFunction ()">*GstCollectPadsQueryFunction</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="GstCollectPads.html#GstCollectPadsFunction" title="GstCollectPadsFunction ()">*GstCollectPadsFunction</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#GST-COLLECT-PADS-STATE:CAPS" title="GST_COLLECT_PADS_STATE()">GST_COLLECT_PADS_STATE</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#GST-COLLECT-PADS-STATE-IS-SET:CAPS" title="GST_COLLECT_PADS_STATE_IS_SET()">GST_COLLECT_PADS_STATE_IS_SET</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#GST-COLLECT-PADS-STATE-SET:CAPS" title="GST_COLLECT_PADS_STATE_SET()">GST_COLLECT_PADS_STATE_SET</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#GST-COLLECT-PADS-STATE-UNSET:CAPS" title="GST_COLLECT_PADS_STATE_UNSET()">GST_COLLECT_PADS_STATE_UNSET</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#GST-COLLECT-PADS-GET-STREAM-LOCK:CAPS" title="GST_COLLECT_PADS_GET_STREAM_LOCK()">GST_COLLECT_PADS_GET_STREAM_LOCK</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#GST-COLLECT-PADS-STREAM-LOCK:CAPS" title="GST_COLLECT_PADS_STREAM_LOCK()">GST_COLLECT_PADS_STREAM_LOCK</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#GST-COLLECT-PADS-STREAM-UNLOCK:CAPS" title="GST_COLLECT_PADS_STREAM_UNLOCK()">GST_COLLECT_PADS_STREAM_UNLOCK</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="returnvalue">GstCollectPads</span></a> *
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-new" title="gst_collect_pads_new ()">gst_collect_pads_new</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="returnvalue">GstCollectData</span></a> *
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-add-pad" title="gst_collect_pads_add_pad ()">gst_collect_pads_add_pad</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-remove-pad" title="gst_collect_pads_remove_pad ()">gst_collect_pads_remove_pad</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-start" title="gst_collect_pads_start ()">gst_collect_pads_start</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-stop" title="gst_collect_pads_stop ()">gst_collect_pads_stop</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-available" title="gst_collect_pads_available ()">gst_collect_pads_available</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-flush" title="gst_collect_pads_flush ()">gst_collect_pads_flush</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html"><span class="returnvalue">GstBuffer</span></a> *
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-peek" title="gst_collect_pads_peek ()">gst_collect_pads_peek</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html"><span class="returnvalue">GstBuffer</span></a> *
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-pop" title="gst_collect_pads_pop ()">gst_collect_pads_pop</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html"><span class="returnvalue">GstBuffer</span></a> *
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-read-buffer" title="gst_collect_pads_read_buffer ()">gst_collect_pads_read_buffer</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html"><span class="returnvalue">GstBuffer</span></a> *
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-take-buffer" title="gst_collect_pads_take_buffer ()">gst_collect_pads_take_buffer</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a>
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-clip-running-time" title="gst_collect_pads_clip_running_time ()">gst_collect_pads_clip_running_time</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-query-default" title="gst_collect_pads_query_default ()">gst_collect_pads_query_default</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-event-default" title="gst_collect_pads_event_default ()">gst_collect_pads_event_default</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-src-event-default" title="gst_collect_pads_src_event_default ()">gst_collect_pads_src_event_default</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-set-buffer-function" title="gst_collect_pads_set_buffer_function ()">gst_collect_pads_set_buffer_function</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-set-clip-function" title="gst_collect_pads_set_clip_function ()">gst_collect_pads_set_clip_function</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-set-compare-function" title="gst_collect_pads_set_compare_function ()">gst_collect_pads_set_compare_function</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-set-event-function" title="gst_collect_pads_set_event_function ()">gst_collect_pads_set_event_function</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-set-flush-function" title="gst_collect_pads_set_flush_function ()">gst_collect_pads_set_flush_function</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-set-query-function" title="gst_collect_pads_set_query_function ()">gst_collect_pads_set_query_function</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-set-flushing" title="gst_collect_pads_set_flushing ()">gst_collect_pads_set_flushing</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-set-function" title="gst_collect_pads_set_function ()">gst_collect_pads_set_function</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstCollectPads.html#gst-collect-pads-set-waiting" title="gst_collect_pads_set_waiting ()">gst_collect_pads_set_waiting</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GstCollectPads.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="GstCollectPads.html#GstCollectPads-struct" title="struct GstCollectPads">GstCollectPads</a></td>
</tr>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData">GstCollectData</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="GstCollectPads.html#GstCollectPadsStateFlags" title="enum GstCollectPadsStateFlags">GstCollectPadsStateFlags</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GstCollectPads.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">    <a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a>
    <span class="lineart">╰──</span> <a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
        <span class="lineart">╰──</span> <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstObject.html">GstObject</a>
            <span class="lineart">╰──</span> GstCollectPads
</pre>
</div>
<div class="refsect1">
<a name="GstCollectPads.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include &lt;gst/base/gstcollectpads.h&gt;
</pre>
</div>
<div class="refsect1">
<a name="GstCollectPads.description"></a><h2>Description</h2>
<p>Manages a set of pads that operate in collect mode. This means that control
is given to the manager of this object when all pads have data.</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem"><p>
    Collectpads are created with <a class="link" href="GstCollectPads.html#gst-collect-pads-new" title="gst_collect_pads_new ()"><code class="function">gst_collect_pads_new()</code></a>. A callback should then
    be installed with <a class="link" href="GstCollectPads.html#gst-collect-pads-set-function" title="gst_collect_pads_set_function ()"><code class="function">gst_collect_pads_set_function()</code></a>.
  </p></li>
<li class="listitem"><p>
    Pads are added to the collection with <a class="link" href="GstCollectPads.html#gst-collect-pads-add-pad" title="gst_collect_pads_add_pad ()"><code class="function">gst_collect_pads_add_pad()</code></a>/
    <a class="link" href="GstCollectPads.html#gst-collect-pads-remove-pad" title="gst_collect_pads_remove_pad ()"><code class="function">gst_collect_pads_remove_pad()</code></a>. The pad
    has to be a sinkpad. The chain and event functions of the pad are
    overridden. The element_private of the pad is used to store
    private information for the collectpads.
  </p></li>
<li class="listitem"><p>
    For each pad, data is queued in the _chain function or by
    performing a pull_range.
  </p></li>
<li class="listitem"><p>
    When data is queued on all pads in waiting mode, the callback function is called.
  </p></li>
<li class="listitem"><p>
    Data can be dequeued from the pad with the <a class="link" href="GstCollectPads.html#gst-collect-pads-pop" title="gst_collect_pads_pop ()"><code class="function">gst_collect_pads_pop()</code></a> method.
    One can peek at the data with the <a class="link" href="GstCollectPads.html#gst-collect-pads-peek" title="gst_collect_pads_peek ()"><code class="function">gst_collect_pads_peek()</code></a> function.
    These functions will return <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if the pad received an EOS event. When all
    pads return <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> from a <a class="link" href="GstCollectPads.html#gst-collect-pads-peek" title="gst_collect_pads_peek ()"><code class="function">gst_collect_pads_peek()</code></a>, the element can emit an EOS
    event itself.
  </p></li>
<li class="listitem"><p>
    Data can also be dequeued in byte units using the <a class="link" href="GstCollectPads.html#gst-collect-pads-available" title="gst_collect_pads_available ()"><code class="function">gst_collect_pads_available()</code></a>,
    <a class="link" href="GstCollectPads.html#gst-collect-pads-read-buffer" title="gst_collect_pads_read_buffer ()"><code class="function">gst_collect_pads_read_buffer()</code></a> and <a class="link" href="GstCollectPads.html#gst-collect-pads-flush" title="gst_collect_pads_flush ()"><code class="function">gst_collect_pads_flush()</code></a> calls.
  </p></li>
<li class="listitem"><p>
    Elements should call <a class="link" href="GstCollectPads.html#gst-collect-pads-start" title="gst_collect_pads_start ()"><code class="function">gst_collect_pads_start()</code></a> and <a class="link" href="GstCollectPads.html#gst-collect-pads-stop" title="gst_collect_pads_stop ()"><code class="function">gst_collect_pads_stop()</code></a> in
    their state change functions to start and stop the processing of the collectpads.
    The <a class="link" href="GstCollectPads.html#gst-collect-pads-stop" title="gst_collect_pads_stop ()"><code class="function">gst_collect_pads_stop()</code></a> call should be called before calling the parent
    element state change function in the PAUSED_TO_READY state change to ensure
    no pad is blocked and the element can finish streaming.
  </p></li>
<li class="listitem"><p>
    <a class="link" href="GstCollectPads.html#gst-collect-pads-set-waiting" title="gst_collect_pads_set_waiting ()"><code class="function">gst_collect_pads_set_waiting()</code></a> sets a pad to waiting or non-waiting mode.
    CollectPads element is not waiting for data to be collected on non-waiting pads.
    Thus these pads may but need not have data when the callback is called.
    All pads are in waiting mode by default.
  </p></li>
</ul></div>
</div>
<div class="refsect1">
<a name="GstCollectPads.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="GstCollectDataDestroyNotify"></a><h3>GstCollectDataDestroyNotify ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*GstCollectDataDestroyNotify<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> *data</code></em>);</pre>
<p>A function that will be called when the <a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> will be freed.
It is passed the pointer to the structure and should free any custom
memory and resources allocated for it.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.2.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>the <a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> that will be freed</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GstCollectPadsBufferFunction"></a><h3>GstCollectPadsBufferFunction ()</h3>
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a>
<span class="c_punctuation">(</span>*GstCollectPadsBufferFunction<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                                 <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> *data</code></em>,
                                 <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html"><span class="type">GstBuffer</span></a> *buffer</code></em>,
                                 <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<p>A function that will be called when a (considered oldest) buffer can be muxed.
If all pads have reached EOS, this function is called with <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> <em class="parameter"><code>buffer</code></em>

and <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> <em class="parameter"><code>data</code></em>
.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.3.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the <a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> that triggered the callback</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>the <a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> of pad that has received the buffer</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>buffer</p></td>
<td class="parameter_description"><p> the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html"><span class="type">GstBuffer</span></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data passed to <a class="link" href="GstCollectPads.html#gst-collect-pads-set-buffer-function" title="gst_collect_pads_set_buffer_function ()"><code class="function">gst_collect_pads_set_buffer_function()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.4.12.8.3.6"></a><h4>Returns</h4>
<p> <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GST-FLOW-OK:CAPS"><code class="literal">GST_FLOW_OK</code></a> for success</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GstCollectPadsClipFunction"></a><h3>GstCollectPadsClipFunction ()</h3>
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a>
<span class="c_punctuation">(</span>*GstCollectPadsClipFunction<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                               <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> *data</code></em>,
                               <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html"><span class="type">GstBuffer</span></a> *inbuffer</code></em>,
                               <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html"><span class="type">GstBuffer</span></a> **outbuffer</code></em>,
                               <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<p>A function that will be called when <em class="parameter"><code>inbuffer</code></em>
 is received on the pad managed
by <em class="parameter"><code>data</code></em>
 in the collectpad object <em class="parameter"><code>pads</code></em>
.</p>
<p>The function should use the segment of <em class="parameter"><code>data</code></em>
 and the negotiated media type on
the pad to perform clipping of <em class="parameter"><code>inbuffer</code></em>
.</p>
<p>This function takes ownership of <em class="parameter"><code>inbuffer</code></em>
 and should output a buffer in
<em class="parameter"><code>outbuffer</code></em>
 or return <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> in <em class="parameter"><code>outbuffer</code></em>
 if the buffer should be dropped.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.4.7"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>inbuffer</p></td>
<td class="parameter_description"><p> the input <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html"><span class="type">GstBuffer</span></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>outbuffer</p></td>
<td class="parameter_description"><p>the output <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html"><span class="type">GstBuffer</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.4.12.8.4.8"></a><h4>Returns</h4>
<p> a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstFlowReturn"><span class="type">GstFlowReturn</span></a> that corresponds to the result of clipping.</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GstCollectPadsCompareFunction"></a><h3>GstCollectPadsCompareFunction ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
<span class="c_punctuation">(</span>*GstCollectPadsCompareFunction<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                                  <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> *data1</code></em>,
                                  <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> timestamp1</code></em>,
                                  <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> *data2</code></em>,
                                  <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> timestamp2</code></em>,
                                  <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<p>A function for comparing two timestamps of buffers or newsegments collected on one pad.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.5.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the <a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> that is comparing the timestamps</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data1</p></td>
<td class="parameter_description"><p>the first <a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>timestamp1</p></td>
<td class="parameter_description"><p>the first timestamp</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data2</p></td>
<td class="parameter_description"><p>the second <a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>timestamp2</p></td>
<td class="parameter_description"><p>the second timestamp</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data passed to <a class="link" href="GstCollectPads.html#gst-collect-pads-set-compare-function" title="gst_collect_pads_set_compare_function ()"><code class="function">gst_collect_pads_set_compare_function()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.4.12.8.5.6"></a><h4>Returns</h4>
<p> Integer less than zero when first timestamp is deemed older than the second one.
Zero if the timestamps are deemed equally old.
Integer greater than zero when second timestamp is deemed older than the first one.</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GstCollectPadsEventFunction"></a><h3>GstCollectPadsEventFunction ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
<span class="c_punctuation">(</span>*GstCollectPadsEventFunction<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                                <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> *pad</code></em>,
                                <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstEvent.html"><span class="type">GstEvent</span></a> *event</code></em>,
                                <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<p>A function that will be called while processing an event. It takes
ownership of the event and is responsible for chaining up (to
<a class="link" href="GstCollectPads.html#gst-collect-pads-event-default" title="gst_collect_pads_event_default ()"><code class="function">gst_collect_pads_event_default()</code></a>) or dropping events (such typical cases
being handled by the default handler).</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.6.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the <a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> that triggered the callback</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pad</p></td>
<td class="parameter_description"><p>the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html"><span class="type">GstPad</span></a> that received an event</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>event</p></td>
<td class="parameter_description"><p>the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstEvent.html"><span class="type">GstEvent</span></a> received</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data passed to <a class="link" href="GstCollectPads.html#gst-collect-pads-set-event-function" title="gst_collect_pads_set_event_function ()"><code class="function">gst_collect_pads_set_event_function()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.4.12.8.6.6"></a><h4>Returns</h4>
<p> <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the pad could handle the event</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GstCollectPadsFlushFunction"></a><h3>GstCollectPadsFlushFunction ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*GstCollectPadsFlushFunction<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                                <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<p>A function that will be called while processing a flushing seek event.</p>
<p>The function should flush any internal state of the element and the state of
all the pads. It should clear only the state not directly managed by the
<em class="parameter"><code>pads</code></em>
 object. It is therefore not necessary to call
gst_collect_pads_set_flushing nor gst_collect_pads_clear from this function.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.7.6"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since 1.4</p>
</div>
<hr>
<div class="refsect2">
<a name="GstCollectPadsQueryFunction"></a><h3>GstCollectPadsQueryFunction ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
<span class="c_punctuation">(</span>*GstCollectPadsQueryFunction<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                                <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> *pad</code></em>,
                                <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstQuery.html"><span class="type">GstQuery</span></a> *query</code></em>,
                                <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<p>A function that will be called while processing a query. It takes
ownership of the query and is responsible for chaining up (to
events downstream (with <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#gst-pad-event-default"><code class="function">gst_pad_event_default()</code></a>).</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.8.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the <a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> that triggered the callback</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pad</p></td>
<td class="parameter_description"><p>the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html"><span class="type">GstPad</span></a> that received an event</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>query</p></td>
<td class="parameter_description"><p>the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstEvent.html"><span class="type">GstEvent</span></a> received</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data passed to <a class="link" href="GstCollectPads.html#gst-collect-pads-set-query-function" title="gst_collect_pads_set_query_function ()"><code class="function">gst_collect_pads_set_query_function()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.4.12.8.8.6"></a><h4>Returns</h4>
<p> <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the pad could handle the event</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GstCollectPadsFunction"></a><h3>GstCollectPadsFunction ()</h3>
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a>
<span class="c_punctuation">(</span>*GstCollectPadsFunction<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                           <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<p>A function that will be called when all pads have received data.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.9.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the <a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> that triggered the callback</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data passed to <a class="link" href="GstCollectPads.html#gst-collect-pads-set-function" title="gst_collect_pads_set_function ()"><code class="function">gst_collect_pads_set_function()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.4.12.8.9.6"></a><h4>Returns</h4>
<p> <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GST-FLOW-OK:CAPS"><code class="literal">GST_FLOW_OK</code></a> for success</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-COLLECT-PADS-STATE:CAPS"></a><h3>GST_COLLECT_PADS_STATE()</h3>
<pre class="programlisting">#define GST_COLLECT_PADS_STATE(data)                 (((GstCollectData *) data)-&gt;state)
</pre>
<p>A flags word containing <a class="link" href="GstCollectPads.html#GstCollectPadsStateFlags" title="enum GstCollectPadsStateFlags"><span class="type">GstCollectPadsStateFlags</span></a> flags set
on this collected pad.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.10.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-COLLECT-PADS-STATE-IS-SET:CAPS"></a><h3>GST_COLLECT_PADS_STATE_IS_SET()</h3>
<pre class="programlisting">#define GST_COLLECT_PADS_STATE_IS_SET(data,flag)     !!(GST_COLLECT_PADS_STATE (data) &amp; flag)
</pre>
<p>Gives the status of a specific flag on a collected pad.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.11.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>flag</p></td>
<td class="parameter_description"><p>the <a class="link" href="GstCollectPads.html#GstCollectPadsStateFlags" title="enum GstCollectPadsStateFlags"><span class="type">GstCollectPadsStateFlags</span></a> to check.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-COLLECT-PADS-STATE-SET:CAPS"></a><h3>GST_COLLECT_PADS_STATE_SET()</h3>
<pre class="programlisting">#define GST_COLLECT_PADS_STATE_SET(data,flag)        (GST_COLLECT_PADS_STATE (data) |= flag)
</pre>
<p>Sets a state flag on a collected pad.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.12.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>flag</p></td>
<td class="parameter_description"><p>the <a class="link" href="GstCollectPads.html#GstCollectPadsStateFlags" title="enum GstCollectPadsStateFlags"><span class="type">GstCollectPadsStateFlags</span></a> to set.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-COLLECT-PADS-STATE-UNSET:CAPS"></a><h3>GST_COLLECT_PADS_STATE_UNSET()</h3>
<pre class="programlisting">#define GST_COLLECT_PADS_STATE_UNSET(data,flag)      (GST_COLLECT_PADS_STATE (data) &amp;= ~(flag))
</pre>
<p>Clears a state flag on a collected pad.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.13.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>flag</p></td>
<td class="parameter_description"><p>the <a class="link" href="GstCollectPads.html#GstCollectPadsStateFlags" title="enum GstCollectPadsStateFlags"><span class="type">GstCollectPadsStateFlags</span></a> to clear.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-COLLECT-PADS-GET-STREAM-LOCK:CAPS"></a><h3>GST_COLLECT_PADS_GET_STREAM_LOCK()</h3>
<pre class="programlisting">#define GST_COLLECT_PADS_GET_STREAM_LOCK(pads) (&amp;((GstCollectPads *)pads)-&gt;stream_lock)
</pre>
<p>Get the stream lock of <em class="parameter"><code>pads</code></em>
. The stream lock is used to coordinate and
serialize execution among the various streams being collected, and in
protecting the resources used to accomplish this.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.14.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-COLLECT-PADS-STREAM-LOCK:CAPS"></a><h3>GST_COLLECT_PADS_STREAM_LOCK()</h3>
<pre class="programlisting">#define GST_COLLECT_PADS_STREAM_LOCK(pads)     g_rec_mutex_lock(GST_COLLECT_PADS_GET_STREAM_LOCK (pads))
</pre>
<p>Lock the stream lock of <em class="parameter"><code>pads</code></em>
.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.15.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-COLLECT-PADS-STREAM-UNLOCK:CAPS"></a><h3>GST_COLLECT_PADS_STREAM_UNLOCK()</h3>
<pre class="programlisting">#define GST_COLLECT_PADS_STREAM_UNLOCK(pads)   g_rec_mutex_unlock(GST_COLLECT_PADS_GET_STREAM_LOCK (pads))
</pre>
<p>Unlock the stream lock of <em class="parameter"><code>pads</code></em>
.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.16.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-new"></a><h3>gst_collect_pads_new ()</h3>
<pre class="programlisting"><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="returnvalue">GstCollectPads</span></a> *
gst_collect_pads_new (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Create a new instance of <a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a>.</p>
<p>MT safe.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.17.6"></a><h4>Returns</h4>
<p> a new <a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a>, or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> in case of an error. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-add-pad"></a><h3>gst_collect_pads_add_pad ()</h3>
<pre class="programlisting"><a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="returnvalue">GstCollectData</span></a> *
gst_collect_pads_add_pad (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                          <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html"><span class="type">GstPad</span></a> *pad</code></em>,
                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> size</code></em>,
                          <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectDataDestroyNotify" title="GstCollectDataDestroyNotify ()"><span class="type">GstCollectDataDestroyNotify</span></a> destroy_notify</code></em>,
                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> lock</code></em>);</pre>
<p>Add a pad to the collection of collect pads. The pad has to be
a sinkpad. The refcount of the pad is incremented. Use
<a class="link" href="GstCollectPads.html#gst-collect-pads-remove-pad" title="gst_collect_pads_remove_pad ()"><code class="function">gst_collect_pads_remove_pad()</code></a> to remove the pad from the collection
again.</p>
<p>You specify a size for the returned <a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> structure
so that you can use it to store additional information.</p>
<p>You can also specify a <a class="link" href="GstCollectPads.html#GstCollectDataDestroyNotify" title="GstCollectDataDestroyNotify ()"><span class="type">GstCollectDataDestroyNotify</span></a> that will be called
just before the <a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> structure is freed. It is passed the
pointer to the structure and should free any custom memory and resources
allocated for it.</p>
<p>Keeping a pad locked in waiting state is only relevant when using
the default collection algorithm (providing the oldest buffer).
It ensures a buffer must be available on this pad for a collection
to take place.  This is of typical use to a muxer element where
non-subtitle streams should always be in waiting state,
e.g. to assure that caps information is available on all these streams
when initial headers have to be written.</p>
<p>The pad will be automatically activated in push mode when <em class="parameter"><code>pads</code></em>
 is
started.</p>
<p>MT safe.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.18.10"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pad</p></td>
<td class="parameter_description"><p> the pad to add. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>size</p></td>
<td class="parameter_description"><p>the size of the returned <a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> structure</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy_notify</p></td>
<td class="parameter_description"><p> function to be called before the returned
<a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> structure is freed. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="The callback is valid until first called."><span class="acronym">scope async</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>lock</p></td>
<td class="parameter_description"><p>whether to lock this pad in usual waiting state</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.4.12.8.18.11"></a><h4>Returns</h4>
<p> a new <a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> to identify the
new pad. Or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if wrong parameters are supplied. </p>
<p><span class="annotation">[nullable][<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-remove-pad"></a><h3>gst_collect_pads_remove_pad ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_collect_pads_remove_pad (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                             <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html"><span class="type">GstPad</span></a> *pad</code></em>);</pre>
<p>Remove a pad from the collection of collect pads. This function will also
free the <a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> and all the resources that were allocated with
<a class="link" href="GstCollectPads.html#gst-collect-pads-add-pad" title="gst_collect_pads_add_pad ()"><code class="function">gst_collect_pads_add_pad()</code></a>.</p>
<p>The pad will be deactivated automatically when <em class="parameter"><code>pads</code></em>
 is stopped.</p>
<p>MT safe.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.19.7"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pad</p></td>
<td class="parameter_description"><p> the pad to remove. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.4.12.8.19.8"></a><h4>Returns</h4>
<p> <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the pad could be removed.</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-start"></a><h3>gst_collect_pads_start ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_collect_pads_start (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>);</pre>
<p>Starts the processing of data in the collect_pads.</p>
<p>MT safe.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.20.6"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to use</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-stop"></a><h3>gst_collect_pads_stop ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_collect_pads_stop (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>);</pre>
<p>Stops the processing of data in the collect_pads. this function
will also unblock any blocking operations.</p>
<p>MT safe.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.21.6"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to use</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-available"></a><h3>gst_collect_pads_available ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
gst_collect_pads_available (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>);</pre>
<p>Query how much bytes can be read from each queued buffer. This means
that the result of this call is the maximum number of bytes that can
be read from each of the pads.</p>
<p>This function should be called with <em class="parameter"><code>pads</code></em>
 STREAM_LOCK held, such as
in the callback.</p>
<p>MT safe.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.22.7"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to query</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.4.12.8.22.8"></a><h4>Returns</h4>
<p> The maximum number of bytes queued on all pads. This function
returns 0 if a pad has no queued buffer.</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-flush"></a><h3>gst_collect_pads_flush ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
gst_collect_pads_flush (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                        <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> *data</code></em>,
                        <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> size</code></em>);</pre>
<p>Flush <em class="parameter"><code>size</code></em>
 bytes from the pad <em class="parameter"><code>data</code></em>
.</p>
<p>This function should be called with <em class="parameter"><code>pads</code></em>
 STREAM_LOCK held, such as
in the callback.</p>
<p>MT safe.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.23.7"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to query</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>the data to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>size</p></td>
<td class="parameter_description"><p>the number of bytes to flush</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.4.12.8.23.8"></a><h4>Returns</h4>
<p> The number of bytes flushed This can be less than <em class="parameter"><code>size</code></em>
and
is 0 if the pad was end-of-stream.</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-peek"></a><h3>gst_collect_pads_peek ()</h3>
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html"><span class="returnvalue">GstBuffer</span></a> *
gst_collect_pads_peek (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                       <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> *data</code></em>);</pre>
<p>Peek at the buffer currently queued in <em class="parameter"><code>data</code></em>
. This function
should be called with the <em class="parameter"><code>pads</code></em>
 STREAM_LOCK held, such as in the callback
handler.</p>
<p>MT safe.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.24.6"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to peek</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>the data to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.4.12.8.24.7"></a><h4>Returns</h4>
<p> The buffer in <em class="parameter"><code>data</code></em>
or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if no buffer is queued.
should unref the buffer after usage.</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-pop"></a><h3>gst_collect_pads_pop ()</h3>
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html"><span class="returnvalue">GstBuffer</span></a> *
gst_collect_pads_pop (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                      <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> *data</code></em>);</pre>
<p>Pop the buffer currently queued in <em class="parameter"><code>data</code></em>
. This function
should be called with the <em class="parameter"><code>pads</code></em>
 STREAM_LOCK held, such as in the callback
handler.</p>
<p>MT safe.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.25.6"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to pop</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>the data to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.4.12.8.25.7"></a><h4>Returns</h4>
<p> The buffer in <em class="parameter"><code>data</code></em>
or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if no buffer was
queued. You should unref the buffer after usage. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-read-buffer"></a><h3>gst_collect_pads_read_buffer ()</h3>
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html"><span class="returnvalue">GstBuffer</span></a> *
gst_collect_pads_read_buffer (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                              <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> *data</code></em>,
                              <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> size</code></em>);</pre>
<p>Get a subbuffer of <em class="parameter"><code>size</code></em>
 bytes from the given pad <em class="parameter"><code>data</code></em>
.</p>
<p>This function should be called with <em class="parameter"><code>pads</code></em>
 STREAM_LOCK held, such as in the
callback.</p>
<p>MT safe.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.26.7"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to query</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>the data to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>size</p></td>
<td class="parameter_description"><p>the number of bytes to read</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.4.12.8.26.8"></a><h4>Returns</h4>
<p> A sub buffer. The size of the buffer can be less that requested.
A return of <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> signals that the pad is end-of-stream.
Unref the buffer after use. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-take-buffer"></a><h3>gst_collect_pads_take_buffer ()</h3>
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html"><span class="returnvalue">GstBuffer</span></a> *
gst_collect_pads_take_buffer (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                              <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> *data</code></em>,
                              <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> size</code></em>);</pre>
<p>Get a subbuffer of <em class="parameter"><code>size</code></em>
 bytes from the given pad <em class="parameter"><code>data</code></em>
. Flushes the amount
of read bytes.</p>
<p>This function should be called with <em class="parameter"><code>pads</code></em>
 STREAM_LOCK held, such as in the
callback.</p>
<p>MT safe.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.27.7"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to query</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>the data to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>size</p></td>
<td class="parameter_description"><p>the number of bytes to read</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.4.12.8.27.8"></a><h4>Returns</h4>
<p> A sub buffer. The size of the buffer can be less that requested.
A return of <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> signals that the pad is end-of-stream.
Unref the buffer after use.</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-clip-running-time"></a><h3>gst_collect_pads_clip_running_time ()</h3>
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a>
gst_collect_pads_clip_running_time (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                                    <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> *cdata</code></em>,
                                    <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html"><span class="type">GstBuffer</span></a> *buf</code></em>,
                                    <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html"><span class="type">GstBuffer</span></a> **outbuf</code></em>,
                                    <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<p>Convenience clipping function that converts incoming buffer's timestamp
to running time, or clips the buffer if outside configured segment.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.28.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>cdata</p></td>
<td class="parameter_description"><p>collect data of corresponding pad</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>buf</p></td>
<td class="parameter_description"><p>buffer being clipped</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>outbuf</p></td>
<td class="parameter_description"><p> output buffer with running time, or NULL if clipped. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data (unused)</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-query-default"></a><h3>gst_collect_pads_query_default ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_collect_pads_query_default (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                                <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> *data</code></em>,
                                <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstQuery.html"><span class="type">GstQuery</span></a> *query</code></em>,
                                <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> discard</code></em>);</pre>
<p>Default <a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> query handling that elements should always
chain up to to ensure proper operation.  Element might however indicate
query should not be forwarded downstream.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.29.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>collect data of corresponding pad</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>query</p></td>
<td class="parameter_description"><p>query being processed</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>discard</p></td>
<td class="parameter_description"><p>process but do not send event downstream</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-event-default"></a><h3>gst_collect_pads_event_default ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_collect_pads_event_default (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                                <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> *data</code></em>,
                                <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstEvent.html"><span class="type">GstEvent</span></a> *event</code></em>,
                                <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> discard</code></em>);</pre>
<p>Default <a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> event handling that elements should always
chain up to to ensure proper operation.  Element might however indicate
event should not be forwarded downstream.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.30.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>collect data of corresponding pad</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>event</p></td>
<td class="parameter_description"><p>event being processed</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>discard</p></td>
<td class="parameter_description"><p>process but do not send event downstream</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-src-event-default"></a><h3>gst_collect_pads_src_event_default ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_collect_pads_src_event_default (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                                    <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html"><span class="type">GstPad</span></a> *pad</code></em>,
                                    <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstEvent.html"><span class="type">GstEvent</span></a> *event</code></em>);</pre>
<p>Default <a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> event handling for the src pad of elements.
Elements can chain up to this to let flushing seek event handling
be done by GstCollectPads.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.31.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pad</p></td>
<td class="parameter_description"><p>src <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html"><span class="type">GstPad</span></a> that received the event</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>event</p></td>
<td class="parameter_description"><p>event being processed</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since 1.4</p>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-set-buffer-function"></a><h3>gst_collect_pads_set_buffer_function ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_collect_pads_set_buffer_function (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                                      <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectPadsBufferFunction" title="GstCollectPadsBufferFunction ()"><span class="type">GstCollectPadsBufferFunction</span></a> func</code></em>,
                                      <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<p>Set the callback function and user data that will be called with
the oldest buffer when all pads have been collected, or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> on EOS.
If a buffer is passed, the callback owns a reference and must unref
it.</p>
<p>MT safe.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.32.6"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>the function to set</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p> user data passed to the function. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-set-clip-function"></a><h3>gst_collect_pads_set_clip_function ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_collect_pads_set_clip_function (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                                    <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectPadsClipFunction" title="GstCollectPadsClipFunction ()"><span class="type">GstCollectPadsClipFunction</span></a> clipfunc</code></em>,
                                    <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<p>Install a clipping function that is called right after a buffer is received
on a pad managed by <em class="parameter"><code>pads</code></em>
. See <a class="link" href="GstCollectPads.html#GstCollectPadsClipFunction" title="GstCollectPadsClipFunction ()"><span class="type">GstCollectPadsClipFunction</span></a> for more info.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.33.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>clipfunc</p></td>
<td class="parameter_description"><p>clip function to install</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data to pass to <em class="parameter"><code>clip_func</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-set-compare-function"></a><h3>gst_collect_pads_set_compare_function ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_collect_pads_set_compare_function (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                                       <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectPadsCompareFunction" title="GstCollectPadsCompareFunction ()"><span class="type">GstCollectPadsCompareFunction</span></a> func</code></em>,
                                       <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<p>Set the timestamp comparison function.</p>
<p>MT safe.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.34.6"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the pads to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>the function to set</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p> user data passed to the function. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-set-event-function"></a><h3>gst_collect_pads_set_event_function ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_collect_pads_set_event_function (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                                     <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectPadsEventFunction" title="GstCollectPadsEventFunction ()"><span class="type">GstCollectPadsEventFunction</span></a> func</code></em>,
                                     <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<p>Set the event callback function and user data that will be called when
collectpads has received an event originating from one of the collected
pads.  If the event being processed is a serialized one, this callback is
called with <em class="parameter"><code>pads</code></em>
 STREAM_LOCK held, otherwise not.  As this lock should be
held when calling a number of CollectPads functions, it should be acquired
if so (unusually) needed.</p>
<p>MT safe.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.35.6"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>the function to set</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data passed to the function</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-set-flush-function"></a><h3>gst_collect_pads_set_flush_function ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_collect_pads_set_flush_function (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                                     <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectPadsFlushFunction" title="GstCollectPadsFlushFunction ()"><span class="type">GstCollectPadsFlushFunction</span></a> func</code></em>,
                                     <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<p>Install a flush function that is called when the internal
state of all pads should be flushed as part of flushing seek
handling. See <a class="link" href="GstCollectPads.html#GstCollectPadsFlushFunction" title="GstCollectPadsFlushFunction ()"><span class="type">GstCollectPadsFlushFunction</span></a> for more info.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.36.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>flush function to install</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data to pass to <em class="parameter"><code>func</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since 1.4</p>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-set-query-function"></a><h3>gst_collect_pads_set_query_function ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_collect_pads_set_query_function (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                                     <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectPadsQueryFunction" title="GstCollectPadsQueryFunction ()"><span class="type">GstCollectPadsQueryFunction</span></a> func</code></em>,
                                     <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<p>Set the query callback function and user data that will be called after
collectpads has received a query originating from one of the collected
pads.  If the query being processed is a serialized one, this callback is
called with <em class="parameter"><code>pads</code></em>
 STREAM_LOCK held, otherwise not.  As this lock should be
held when calling a number of CollectPads functions, it should be acquired
if so (unusually) needed.</p>
<p>MT safe.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.37.6"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>the function to set</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data passed to the function</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-set-flushing"></a><h3>gst_collect_pads_set_flushing ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_collect_pads_set_flushing (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                               <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> flushing</code></em>);</pre>
<p>Change the flushing state of all the pads in the collection. No pad
is able to accept anymore data when <em class="parameter"><code>flushing</code></em>
 is <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>. Calling this
function with <em class="parameter"><code>flushing</code></em>
 <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> makes <em class="parameter"><code>pads</code></em>
 accept data again.
Caller must ensure that downstream streaming (thread) is not blocked,
e.g. by sending a FLUSH_START downstream.</p>
<p>MT safe.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.38.6"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>flushing</p></td>
<td class="parameter_description"><p>desired state of the pads</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-set-function"></a><h3>gst_collect_pads_set_function ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_collect_pads_set_function (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                               <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectPadsFunction" title="GstCollectPadsFunction ()"><span class="type">GstCollectPadsFunction</span></a> func</code></em>,
                               <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<p>CollectPads provides a default collection algorithm that will determine
the oldest buffer available on all of its pads, and then delegate
to a configured callback.
However, if circumstances are more complicated and/or more control
is desired, this sets a callback that will be invoked instead when
all the pads added to the collection have buffers queued.
Evidently, this callback is not compatible with
<a class="link" href="GstCollectPads.html#gst-collect-pads-set-buffer-function" title="gst_collect_pads_set_buffer_function ()"><code class="function">gst_collect_pads_set_buffer_function()</code></a> callback.
If this callback is set, the former will be unset.</p>
<p>MT safe.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.39.6"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>the function to set</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data passed to the function</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-collect-pads-set-waiting"></a><h3>gst_collect_pads_set_waiting ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_collect_pads_set_waiting (<em class="parameter"><code><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *pads</code></em>,
                              <em class="parameter"><code><a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> *data</code></em>,
                              <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> waiting</code></em>);</pre>
<p>Sets a pad to waiting or non-waiting mode, if at least this pad
has not been created with locked waiting state,
in which case nothing happens.</p>
<p>This function should be called with <em class="parameter"><code>pads</code></em>
 STREAM_LOCK held, such as
in the callback.</p>
<p>MT safe.</p>
<div class="refsect3">
<a name="id-1.2.4.12.8.40.7"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pads</p></td>
<td class="parameter_description"><p>the collectpads</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>the data to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>waiting</p></td>
<td class="parameter_description"><p>boolean indicating whether this pad should operate
in waiting or non-waiting mode</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="GstCollectPads.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstCollectPads-struct"></a><h3>struct GstCollectPads</h3>
<pre class="programlisting">struct GstCollectPads {
  GSList        *data;                  /* list of CollectData items */
};
</pre>
<p>Collectpads object.</p>
<div class="refsect3">
<a name="id-1.2.4.12.9.2.5"></a><h4>Members</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="300px" class="struct_members_name">
<col class="struct_members_description">
<col width="200px" class="struct_members_annotations">
</colgroup>
<tbody><tr>
<td class="struct_member_name"><p><a href="http://library.gnome.org/devel/glib/unstable/glib-Singly-Linked-Lists.html#GSList"><span class="type">GSList</span></a> *<em class="structfield"><code><a name="GstCollectPads-struct.data"></a>data</code></em>;</p></td>
<td class="struct_member_description"><p> <a href="http://library.gnome.org/devel/glib/unstable/glib-Doubly-Linked-Lists.html#GList"><span class="type">GList</span></a> of <a class="link" href="GstCollectPads.html#GstCollectData" title="struct GstCollectData"><span class="type">GstCollectData</span></a> managed
by this <a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a>. </p></td>
<td class="struct_member_annotations"><span class="annotation">[<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> GstBase.CollectData]</span></td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GstCollectData"></a><h3>struct GstCollectData</h3>
<pre class="programlisting">struct GstCollectData {
  /* with STREAM_LOCK of @collect */
  GstCollectPads        *collect;
  GstPad                *pad;
  GstBuffer             *buffer;
  guint                  pos;
  GstSegment             segment;
};
</pre>
<p>Structure used by the collect_pads.</p>
<div class="refsect3">
<a name="id-1.2.4.12.9.3.5"></a><h4>Members</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="300px" class="struct_members_name">
<col class="struct_members_description">
<col width="200px" class="struct_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="struct_member_name"><p><a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a> *<em class="structfield"><code><a name="GstCollectData.collect"></a>collect</code></em>;</p></td>
<td class="struct_member_description"><p>owner <a class="link" href="GstCollectPads.html" title="GstCollectPads"><span class="type">GstCollectPads</span></a></p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html"><span class="type">GstPad</span></a> *<em class="structfield"><code><a name="GstCollectData.pad"></a>pad</code></em>;</p></td>
<td class="struct_member_description"><p><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html"><span class="type">GstPad</span></a> managed by this data</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html"><span class="type">GstBuffer</span></a> *<em class="structfield"><code><a name="GstCollectData.buffer"></a>buffer</code></em>;</p></td>
<td class="struct_member_description"><p>currently queued buffer.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstCollectData.pos"></a>pos</code></em>;</p></td>
<td class="struct_member_description"><p>position in the buffer</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstSegment.html"><span class="type">GstSegment</span></a> <em class="structfield"><code><a name="GstCollectData.segment"></a>segment</code></em>;</p></td>
<td class="struct_member_description"><p>last segment received.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GstCollectPadsStateFlags"></a><h3>enum GstCollectPadsStateFlags</h3>
<div class="refsect3">
<a name="id-1.2.4.12.9.4.3"></a><h4>Members</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="enum_member_name"><p><a name="GST-COLLECT-PADS-STATE-EOS:CAPS"></a>GST_COLLECT_PADS_STATE_EOS</p></td>
<td class="enum_member_description">
<p>Set if collectdata's pad is EOS.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-COLLECT-PADS-STATE-FLUSHING:CAPS"></a>GST_COLLECT_PADS_STATE_FLUSHING</p></td>
<td class="enum_member_description">
<p>Set if collectdata's pad is flushing.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-COLLECT-PADS-STATE-NEW-SEGMENT:CAPS"></a>GST_COLLECT_PADS_STATE_NEW_SEGMENT</p></td>
<td class="enum_member_description">
<p>Set if collectdata's pad received a
                                     new_segment event.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-COLLECT-PADS-STATE-WAITING:CAPS"></a>GST_COLLECT_PADS_STATE_WAITING</p></td>
<td class="enum_member_description">
<p>Set if collectdata's pad must be waited
                                     for when collecting.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-COLLECT-PADS-STATE-LOCKED:CAPS"></a>GST_COLLECT_PADS_STATE_LOCKED</p></td>
<td class="enum_member_description">
<p>Set collectdata's pad WAITING state must
                                     not be changed.
<a class="link" href="GstCollectPads.html#GstCollectPadsStateFlags" title="enum GstCollectPadsStateFlags"><span class="type">GstCollectPadsStateFlags</span></a> indicate private state of a collectdata('s pad).</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
</div>
<div class="footer">
<hr>
          Generated by GTK-Doc V1.20</div>
</body>
</html>