[Bug 776293] New: GStreamer-CRITICAL **: gst_stream_collection_get_size: assertion 'collection->priv->streams' failed

GStreamer (GNOME Bugzilla) bugzilla at gnome.org
Mon Dec 19 21:10:58 UTC 2016 

https://bugzilla.gnome.org/show_bug.cgi?id=776293

            Bug ID: 776293
           Summary: GStreamer-CRITICAL **: gst_stream_collection_get_size:
                    assertion 'collection->priv->streams' failed
    Classification: Platform
           Product: GStreamer
           Version: git master
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: minfrin at sharp.fm
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

While running a transcoder stream with a pipeline that is decodebin !
encodebin, after a period of time the pipeline crashes with an assertion
failure like below:

0:14:25.135366841 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:249:gst_object_ref:<bus6> 0x70715ef8 ref 11->12
0:14:25.135476944 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:275:gst_object_unref:<bus6> 0x70715ef8 unref 12->11
0:14:25.135605432 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:249:gst_object_ref:<multiqueue0:sink_3> 0x74853a58 ref 4->5
0:14:25.135706681 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:249:gst_object_ref:<bus6> 0x70715ef8 ref 11->12
0:14:25.135802409 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x74282ed0 unref 1->0
0:14:25.135903866 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:275:gst_object_unref:<multiqueue0:sink_3> 0x74853a58 unref 5->4
0:14:25.135996366 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x74282f28 unref 1->0
0:14:25.136100323 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:275:gst_object_unref:<multiqueue0:sink_3> 0x74853a58 unref 4->3
0:14:25.136205686 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:275:gst_object_unref:<bus6> 0x70715ef8 unref 12->11
0:14:25.136299904 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:275:gst_object_unref:<tsdemux0> 0x70b3e178 unref 5->4
0:14:25.136397299 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:275:gst_object_unref:<multiqueue0:sink_3> 0x74853a58 unref 3->2
0:14:25.136505839 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:760:gst_object_unparent:<tsdemux0:subpicture_0_1d51> unparent
0:14:25.136589380 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:275:gst_object_unref:<'':subpicture_0_1d51> 0x74860c08 unref 2->1
0:14:25.136683598 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x740c5e50 ref 2->3
0:14:25.136796097 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740c5e50 unref 3->2
0:14:25.136880210 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x740913b0 ref 1->2
0:14:25.137002918 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740913b0 unref 2->1
0:14:25.137106823 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:275:gst_object_unref:stream text 0x7425a570, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d51,
flags 0x1, caps [subpicture/x-dvb], tags [taglist, language-code=(string)en,
subtitle-codec=(string)"DVB\ subtitles";] 0x7425a570 unref 2->1
0:14:25.137207082 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x74266cb0 unref 1->0
0:14:25.138691702 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x74090cc0 unref 1->0
0:14:25.139196697 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x4b11aa60 unref 1->0
0:14:25.143023219 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x740c65b8 ref 1->2
0:14:25.145077677 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740c65b8 unref 2->1
0:14:25.145205957 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x740912c0 ref 1->2
0:14:25.145341268 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740912c0 unref 2->1
0:14:25.147272342 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x740c5e00 ref 1->2
0:14:25.147453746 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740c5e00 unref 2->1
0:14:25.147599318 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x74090c30 ref 1->2
0:14:25.147763118 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x74090c30 unref 2->1
0:14:25.147910773 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x740c5e28 ref 1->2
0:14:25.148036657 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740c5e28 unref 2->1
0:14:25.148122229 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x74090c00 ref 1->2
0:14:25.148242228 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x74090c00 unref 2->1
0:14:25.148463371 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x740c5e50 ref 2->3
0:14:25.148574412 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740c5e50 unref 3->2
0:14:25.148658213 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x740913b0 ref 1->2
0:14:25.148793368 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740913b0 unref 2->1
0:14:25.148977324 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:275:gst_object_unref:collection 0x7425ae50 (4 streams) < stream
video 0x7425a438, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d4d,
flags 0x0, caps [video/x-h264, stream-format=(string)byte-stream,
alignment=(string)nal], tags [taglist, video-codec=(string)H.264;], stream
audio 0x7425a4a0, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d4e,
flags 0x0, caps [audio/mpeg, mpegversion=(int)4, stream-format=(string)loas],
tags [taglist, language-code=(string)en, audio-codec=(string)"MPEG-4\ AAC";],
stream audio 0x7425a508, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d52,
flags 0x0, caps [audio/mpeg, mpegversion=(int)4, stream-format=(string)loas],
tags [taglist, language-code=(string)en, audio-codec=(string)"MPEG-4\ AAC";],
stream text 0x7425a570, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d51,
flags 0x1, caps [subpicture/x-dvb], tags [taglist, language-code=(string)en,
subtitle-codec=(string)"DVB\ subtitles";], > 0x7425ae50 unref 1->0
0:14:25.149154301 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x740c65b8 ref 1->2
0:14:25.149835648 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740c65b8 unref 2->1
0:14:25.150809545 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x740912c0 ref 1->2
0:14:25.152081563 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740912c0 unref 2->1
0:14:25.152201197 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:275:gst_object_unref:stream video 0x7425a438, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d4d,
flags 0x0, caps [video/x-h264, stream-format=(string)byte-stream,
alignment=(string)nal], tags [taglist, video-codec=(string)H.264;] 0x7425a438
unref 1->0
0:14:25.153051865 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x740c65b8 ref 1->2
0:14:25.153184572 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740c65b8 unref 2->1
0:14:25.153273686 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x740912c0 ref 1->2
0:14:25.153379726 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740912c0 unref 2->1
0:14:25.153958366 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:364:gst_object_dispose:stream video 0x7425a438, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d4d,
flags 0x0, caps [video/x-h264, stream-format=(string)byte-stream,
alignment=(string)nal], tags [taglist, video-codec=(string)H.264;] 0x7425a438
dispose
0:14:25.154484558 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:482:gst_mini_object_replace: replace 0x740912c0 (1) with (nil)
(0)
0:14:25.154598255 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740912c0 unref 1->0
0:14:25.154713514 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:482:gst_mini_object_replace: replace 0x740c65b8 (1) with (nil)
(0)
0:14:25.154816065 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740c65b8 unref 1->0
0:14:25.154949397 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:406:gst_object_finalize:stream video 0x7425a438, ID , flags 0x0,
caps [], tags [] 0x7425a438 finalize
0:14:25.155808295 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x740c5e00 ref 1->2
0:14:25.155946366 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740c5e00 unref 2->1
0:14:25.156034907 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x74090c30 ref 1->2
0:14:25.156157458 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x74090c30 unref 2->1
0:14:25.156264175 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:275:gst_object_unref:stream audio 0x7425a4a0, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d4e,
flags 0x0, caps [audio/mpeg, mpegversion=(int)4, stream-format=(string)loas],
tags [taglist, language-code=(string)en, audio-codec=(string)"MPEG-4\ AAC";]
0x7425a4a0 unref 1->0
0:14:25.156356206 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x740c5e00 ref 1->2
0:14:25.156478027 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740c5e00 unref 2->1
0:14:25.156564328 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x74090c30 ref 1->2
0:14:25.156689692 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x74090c30 unref 2->1
0:14:25.156792138 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:364:gst_object_dispose:stream audio 0x7425a4a0, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d4e,
flags 0x0, caps [audio/mpeg, mpegversion=(int)4, stream-format=(string)loas],
tags [taglist, language-code=(string)en, audio-codec=(string)"MPEG-4\ AAC";]
0x7425a4a0 dispose
0:14:25.156872606 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:482:gst_mini_object_replace: replace 0x74090c30 (1) with (nil)
(0)
0:14:25.156970470 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x74090c30 unref 1->0
0:14:25.157068073 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:482:gst_mini_object_replace: replace 0x740c5e00 (1) with (nil)
(0)
0:14:25.157164322 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740c5e00 unref 1->0
0:14:25.157281873 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:406:gst_object_finalize:stream audio 0x7425a4a0, ID , flags 0x0,
caps [], tags [] 0x7425a4a0 finalize
0:14:25.157364008 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x740c5e28 ref 1->2
0:14:25.157527287 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740c5e28 unref 2->1
0:14:25.157618328 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x74090c00 ref 1->2
0:14:25.157737181 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x74090c00 unref 2->1
0:14:25.157868586 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:275:gst_object_unref:stream audio 0x7425a508, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d52,
flags 0x0, caps [audio/mpeg, mpegversion=(int)4, stream-format=(string)loas],
tags [taglist, language-code=(string)en, audio-codec=(string)"MPEG-4\ AAC";]
0x7425a508 unref 1->0
0:14:25.157961085 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x740c5e28 ref 1->2
0:14:25.158080042 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740c5e28 unref 2->1
0:14:25.158165614 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x74090c00 ref 1->2
0:14:25.158279831 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x74090c00 unref 2->1
0:14:25.158382330 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:364:gst_object_dispose:stream audio 0x7425a508, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d52,
flags 0x0, caps [audio/mpeg, mpegversion=(int)4, stream-format=(string)loas],
tags [taglist, language-code=(string)en, audio-codec=(string)"MPEG-4\ AAC";]
0x7425a508 dispose
0:14:25.158458996 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:482:gst_mini_object_replace: replace 0x74090c00 (1) with (nil)
(0)
0:14:25.158555766 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x74090c00 unref 1->0
0:14:25.158652744 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:482:gst_mini_object_replace: replace 0x740c5e28 (1) with (nil)
(0)
0:14:25.158750503 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740c5e28 unref 1->0
0:14:25.158865711 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:406:gst_object_finalize:stream audio 0x7425a508, ID , flags 0x0,
caps [], tags [] 0x7425a508 finalize
0:14:25.158944876 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x740c5e50 ref 2->3
0:14:25.159037948 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740c5e50 unref 3->2
0:14:25.159120135 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x740913b0 ref 1->2
0:14:25.159235551 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740913b0 unref 2->1
0:14:25.159338987 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:275:gst_object_unref:stream text 0x7425a570, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d51,
flags 0x1, caps [subpicture/x-dvb], tags [taglist, language-code=(string)en,
subtitle-codec=(string)"DVB\ subtitles";] 0x7425a570 unref 1->0
0:14:25.159427528 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x740c5e50 ref 2->3
0:14:25.159518516 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740c5e50 unref 3->2
0:14:25.159600963 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:349:gst_mini_object_ref: 0x740913b0 ref 1->2
0:14:25.159714296 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740913b0 unref 2->1
0:14:25.159814972 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:364:gst_object_dispose:stream text 0x7425a570, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d51,
flags 0x1, caps [subpicture/x-dvb], tags [taglist, language-code=(string)en,
subtitle-codec=(string)"DVB\ subtitles";] 0x7425a570 dispose
0:14:25.159888825 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:482:gst_mini_object_replace: replace 0x740913b0 (1) with (nil)
(0)
0:14:25.159985074 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740913b0 unref 1->0
0:14:25.160099864 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:482:gst_mini_object_replace: replace 0x740c5e50 (2) with (nil)
(0)
0:14:25.160196686 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstminiobject.c:429:gst_mini_object_unref: 0x740c5e50 unref 2->1
0:14:25.160294237 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:406:gst_object_finalize:stream text 0x7425a570, ID , flags 0x1,
caps [], tags [] 0x7425a570 finalize

(gst-launch-1.0:22978): GStreamer-CRITICAL **: gst_stream_collection_get_size:
assertion 'collection->priv->streams' failed

On the following objects, the ID field points at what looks like uninitialised
data:

- 0x7425a570
- 0x7425a508
- 0x7425a4a0
- 0x7425a438

Zooming into the 0x7425a570 object, we find this:

minfrin at towerofpi9:~$ cat /mnt/stream/stream23.out | grep 0x7425a570
0:00:03.743320551 22978 0x74091350 TRACE        GST_REFCOUNTING
gstobject.c:220:gst_object_init:<GstObject at 0x7425a570> 0x7425a570 new
0:00:03.748383519 22978 0x74091350 TRACE        GST_REFCOUNTING
gstobject.c:249:gst_object_ref:stream text 0x7425a570, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d51,
flags 0x1, caps [subpicture/x-dvb], tags [taglist, language-code=(string)en,
subtitle-codec=(string)"DVB\ subtitles";] 0x7425a570 ref 2->3
0:14:25.137106823 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:275:gst_object_unref:stream text 0x7425a570, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d51,
flags 0x1, caps [subpicture/x-dvb], tags [taglist, language-code=(string)en,
subtitle-codec=(string)"DVB\ subtitles";] 0x7425a570 unref 2->1
0:14:25.148977324 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:275:gst_object_unref:collection 0x7425ae50 (4 streams) < stream
video 0x7425a438, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d4d,
flags 0x0, caps [video/x-h264, stream-format=(string)byte-stream,
alignment=(string)nal], tags [taglist, video-codec=(string)H.264;], stream
audio 0x7425a4a0, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d4e,
flags 0x0, caps [audio/mpeg, mpegversion=(int)4, stream-format=(string)loas],
tags [taglist, language-code=(string)en, audio-codec=(string)"MPEG-4\ AAC";],
stream audio 0x7425a508, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d52,
flags 0x0, caps [audio/mpeg, mpegversion=(int)4, stream-format=(string)loas],
tags [taglist, language-code=(string)en, audio-codec=(string)"MPEG-4\ AAC";],
stream text 0x7425a570, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d51,
flags 0x1, caps [subpicture/x-dvb], tags [taglist, language-code=(string)en,
subtitle-codec=(string)"DVB\ subtitles";], > 0x7425ae50 unref 1->0
0:14:25.159338987 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:275:gst_object_unref:stream text 0x7425a570, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d51,
flags 0x1, caps [subpicture/x-dvb], tags [taglist, language-code=(string)en,
subtitle-codec=(string)"DVB\ subtitles";] 0x7425a570 unref 1->0
0:14:25.159814972 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:364:gst_object_dispose:stream text 0x7425a570, ID
c05773e29ede60b2192639229d6f79c37840bfcf146a80ec243277440db8f12a/multi-program:20352/00001d51,
flags 0x1, caps [subpicture/x-dvb], tags [taglist, language-code=(string)en,
subtitle-codec=(string)"DVB\ subtitles";] 0x7425a570 dispose
0:14:25.160294237 22978 0x74000c00 TRACE        GST_REFCOUNTING
gstobject.c:406:gst_object_finalize:stream text 0x7425a570, ID , flags 0x1,
caps [], tags [] 0x7425a570 finalize

Questions:

- Are we unreffing the objects too many times?
- Why would 0x7425a570 be corrupt at the finalize step?
- What would dispose do that would corrupt the finalize step?

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