<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN" "http://www.w3.org/TR/REC-html40/strict.dtd"> <html><head><meta name="qrichtext" content="1" /><style type="text/css"> p, li { white-space: pre-wrap; } </style></head><body style=" font-family:'Noto Sans'; font-size:9pt; font-weight:400; font-style:normal;"> Hi, I'm having a problem with decodebin and I've managed to isolate the cause but I'm not sure how to get to a resolution. My application is an audio player client which receives streams from a server which simply streams audio files (flac, ogg/vorbis, mp3 etc). I'm just looking for some pointers. Currently I'm considering handling the autoplug-select signal from decodebin, exposing the application/x-icy pad and attaching a fakesink but this feels a bit kludgy. For me decodebin is working fine except when both these conditions are hit: 1. The stream is audio/x-flac. 2. The stream to the client starts from somewhere in the middle of the file on the server (the server can do this and I have no control of this) The error message is: gsticydemux.c(481): gst_icydemux_typefind_or_forward (): /GstPipeline:stormpipe/GstBin:bin1/GstDecodeBin:decoder/GstICYDemux:icydemux1: No caps found for contents within an ICY stream The debug output for the time leading up to the error is: 0:00:33.341937029 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:2854:type_found:<decoder>[00m typefind found caps application/x-icy, metadata-interval=(int)32768 0:00:33.341982088 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:3517:gst_decode_chain_new:<decoder>[00m Creating new chain 0x7f64ac0759d0 with parent group (nil) [storm::codec] [0:00:33.342007075 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:1524:analyze_new_pad:<decoder>[00m Pad typefind:src caps:application/x-icy, metadata-interval=(int)32768 INFO] Sending STAT_0:00:33.342023242 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:5180:gst_decode_pad_new:<decoder>[00m making new decodepad STMe 0:00:33.342148164 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:5627:gst_decode_bin_handle_message:<decoder>[00m Forwarding msg structure-change message: 0x7f64a04af690, time 99:99:99.999999999, seq-num 536, element 'proxypad5', GstMessageStructureChange, type=(GstStructureChangeType)GST_STRUCTURE_CHANGE_TYPE_PAD_LINK, owner=(GstElement)"\(GstTypeFindElement\)\ typefind", busy=(boolean)true; [storm::codec] [INFO] Sending STAT_STMh0:00:33.342206707 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:5627:gst_decode_bin_handle_message:<decoder>[00m Forwarding msg structure-change message: 0x55c33a4cca40, time 99:99:99.999999999, seq-num 538, element 'proxypad5', GstMessageStructureChange, type=(GstStructureChangeType)GST_STRUCTURE_CHANGE_TYPE_PAD_LINK, owner=(GstElement)"\(GstTypeFindElement\)\ typefind", busy=(boolean)false; 0:00:33.342247215 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:1480:copy_sticky_events:<'':decodepad1>[00m store sticky event stream-start event: 0x7f64ac38e890, time 99:99:99.999999999, seq-num 529, GstEventStreamStart, stream-id=(string)0d4ad9edec33945fabea4dcc13a96839c3391a21ff4d5032723cfa8e55eec35c, flags=(GstStreamFlags)GST_STREAM_FLAG_NONE, group-id=(uint)2; 0:00:33.342288952 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:1480:copy_sticky_events:<'':decodepad1>[00m store sticky event caps event: 0x7f64ac1d6ea0, time 99:99:99.999999999, seq-num 535, GstEventCaps, caps=(GstCaps)"application/x-icy\,\ metadata-interval\=\(int\)32768"; 0:00:33.342312614 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:1375:gst_decode_bin_autoplug_continue:<decoder>[00m autoplug-continue returns TRUE 0:00:33.342333751 [335m 6130[00m 0x55c33a472990 [33;01mLOG [00m [00m decodebin gstdecodebin2.c:3222:are_final_caps:<decoder>[00m Checking with caps application/x-icy, metadata-interval=(int)32768 0:00:33.342348965 [335m 6130[00m 0x55c33a472990 [33;01mLOG [00m [00m decodebin gstdecodebin2.c:3229:are_final_caps:<decoder>[00m Caps are not final caps 0:00:33.342367488 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:1389:gst_decode_bin_autoplug_factories:<decoder>[00m finding factories 0:00:33.344366683 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:1411:gst_decode_bin_autoplug_factories:<decoder>[00m autoplug-factories returns 0x7f64ac208100 0:00:33.344398574 [335m 6130[00m 0x55c33a472990 [33;01mLOG [00m [00m decodebin gstdecodebin2.c:1807:analyze_new_pad:<typefind:src>[00m Let's continue discovery on this pad 0:00:33.344427912 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:2102:connect_pad:<decoder>[00m pad typefind:src , chain:0x7f64ac0759d0, 1 factories, caps application/x-icy, metadata-interval=(int)32768 0:00:33.344471203 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:5627:gst_decode_bin_handle_message:<decoder>[00m Forwarding msg structure-change message: 0x55c33a4cca40, time 99:99:99.999999999, seq-num 541, element 'proxypad5', GstMessageStructureChange, type=(GstStructureChangeType)GST_STRUCTURE_CHANGE_TYPE_PAD_UNLINK, owner=(GstElement)"\(GstTypeFindElement\)\ typefind", busy=(boolean)true; 0:00:33.344512265 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:5627:gst_decode_bin_handle_message:<decoder>[00m Forwarding msg structure-change message: 0x7f64a04af690, time 99:99:99.999999999, seq-num 542, element 'proxypad5', GstMessageStructureChange, type=(GstStructureChangeType)GST_STRUCTURE_CHANGE_TYPE_PAD_UNLINK, owner=(GstElement)"\(GstTypeFindElement\)\ typefind", busy=(boolean)false; 0:00:33.344545520 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:5627:gst_decode_bin_handle_message:<decoder>[00m Forwarding msg structure-change message: 0x7f64a04af690, time 99:99:99.999999999, seq-num 543, element 'proxypad5', GstMessageStructureChange, type=(GstStructureChangeType)GST_STRUCTURE_CHANGE_TYPE_PAD_LINK, owner=(GstElement)"\(GstTypeFindElement\)\ typefind", busy=(boolean)true; 0:00:33.344588317 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:5627:gst_decode_bin_handle_message:<decoder>[00m Forwarding msg structure-change message: 0x55c33a4cca40, time 99:99:99.999999999, seq-num 545, element 'proxypad5', GstMessageStructureChange, type=(GstStructureChangeType)GST_STRUCTURE_CHANGE_TYPE_PAD_LINK, owner=(GstElement)"\(GstTypeFindElement\)\ typefind", busy=(boolean)false; 0:00:33.344620202 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:1480:copy_sticky_events:<'':decodepad1>[00m store sticky event stream-start event: 0x7f64ac38e890, time 99:99:99.999999999, seq-num 529, GstEventStreamStart, stream-id=(string)0d4ad9edec33945fabea4dcc13a96839c3391a21ff4d5032723cfa8e55eec35c, flags=(GstStreamFlags)GST_STREAM_FLAG_NONE, group-id=(uint)2; 0:00:33.344655457 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:1480:copy_sticky_events:<'':decodepad1>[00m store sticky event caps event: 0x7f64ac1d6ea0, time 99:99:99.999999999, seq-num 535, GstEventCaps, caps=(GstCaps)"application/x-icy\,\ metadata-interval\=\(int\)32768"; 0:00:33.344672078 [335m 6130[00m 0x55c33a472990 [33;01mLOG [00m [00m decodebin gstdecodebin2.c:2151:connect_pad:<typefind>[00m trying factory <icydemux> 0:00:33.344693383 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:1427:gst_decode_bin_autoplug_select:<decoder>[00m default autoplug-select returns TRY 0:00:33.344708494 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:2248:connect_pad:<decoder>[00m autoplug select requested try 0:00:33.344738768 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:5627:gst_decode_bin_handle_message:<decoder>[00m Forwarding msg structure-change message: 0x55c33a4cca40, time 99:99:99.999999999, seq-num 546, element 'proxypad5', GstMessageStructureChange, type=(GstStructureChangeType)GST_STRUCTURE_CHANGE_TYPE_PAD_UNLINK, owner=(GstElement)"\(GstTypeFindElement\)\ typefind", busy=(boolean)true; 0:00:33.344767425 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:5627:gst_decode_bin_handle_message:<decoder>[00m Forwarding msg structure-change message: 0x7f64a04af690, time 99:99:99.999999999, seq-num 547, element 'proxypad5', GstMessageStructureChange, type=(GstStructureChangeType)GST_STRUCTURE_CHANGE_TYPE_PAD_UNLINK, owner=(GstElement)"\(GstTypeFindElement\)\ typefind", busy=(boolean)false; 0:00:33.344796437 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:1469:clear_sticky_events:<'':decodepad1>[00m clearing sticky event stream-start event: 0x7f64ac38e890, time 99:99:99.999999999, seq-num 529, GstEventStreamStart, stream-id=(string)0d4ad9edec33945fabea4dcc13a96839c3391a21ff4d5032723cfa8e55eec35c, flags=(GstStreamFlags)GST_STREAM_FLAG_NONE, group-id=(uint)2; 0:00:33.344819248 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:1469:clear_sticky_events:<'':decodepad1>[00m clearing sticky event caps event: 0x7f64ac1d6ea0, time 99:99:99.999999999, seq-num 535, GstEventCaps, caps=(GstCaps)"application/x-icy\,\ metadata-interval\=\(int\)32768"; 0:00:33.344911225 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:5627:gst_decode_bin_handle_message:<decoder>[00m Forwarding msg structure-change message: 0x7f64a04af690, time 99:99:99.999999999, seq-num 548, element 'sink', GstMessageStructureChange, type=(GstStructureChangeType)GST_STRUCTURE_CHANGE_TYPE_PAD_LINK, owner=(GstElement)"\(GstTypeFindElement\)\ typefind", busy=(boolean)true; 0:00:33.344956320 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:5627:gst_decode_bin_handle_message:<decoder>[00m Forwarding msg structure-change message: 0x55c33a4cca40, time 99:99:99.999999999, seq-num 550, element 'sink', GstMessageStructureChange, type=(GstStructureChangeType)GST_STRUCTURE_CHANGE_TYPE_PAD_LINK, owner=(GstElement)"\(GstTypeFindElement\)\ typefind", busy=(boolean)false; 0:00:33.344991512 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:5627:gst_decode_bin_handle_message:<decoder>[00m Forwarding msg state-changed message: 0x55c33a4cca40, time 99:99:99.999999999, seq-num 551, element 'icydemux1', GstMessageStateChanged, old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY, pending-state=(GstState)GST_STATE_VOID_PENDING; 0:00:33.345047788 [335m 6130[00m 0x55c33a472990 [33;01mLOG [00m [00m decodebin gstdecodebin2.c:2372:connect_pad:<decoder>[00m linked on pad typefind:src 0:00:33.345065560 [335m 6130[00m 0x55c33a472990 [33;01mLOG [00m [00m decodebin gstdecodebin2.c:2374:connect_pad:<decoder>[00m locking chain 0x7f64ac0759d0 from thread 0x55c33a472990 0:00:33.345089694 [335m 6130[00m 0x55c33a472990 [33;01mLOG [00m [00m decodebin gstdecodebin2.c:2374:connect_pad:<decoder>[00m locked chain 0x7f64ac0759d0 from thread 0x55c33a472990 0:00:33.345107689 [335m 6130[00m 0x55c33a472990 [33;01mLOG [00m [00m decodebin gstdecodebin2.c:2419:connect_pad:<decoder>[00m unlocking chain 0x7f64ac0759d0 from thread 0x55c33a472990 0:00:33.345124693 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:2682:connect_element:<decoder>[00m Attempting to connect element icydemux1 [chain:0x7f64ac0759d0] further 0:00:33.345137454 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:2695:connect_element:<decoder>[00m got a source pad template src 0:00:33.345152046 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:2730:connect_element:<decoder>[00m did not get the sometimes pad of template src 0:00:33.345165647 [335m 6130[00m 0x55c33a472990 [33;01mLOG [00m [00m decodebin gstdecodebin2.c:2746:connect_element:<decoder>[00m Adding signals to element icydemux1 in chain 0x7f64ac0759d0 0:00:33.345216934 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:5627:gst_decode_bin_handle_message:<decoder>[00m Forwarding msg state-changed message: 0x7f64a04af690, time 99:99:99.999999999, seq-num 552, element 'icydemux1', GstMessageStateChanged, old-state=(GstState)GST_STATE_READY, new-state=(GstState)GST_STATE_PAUSED, pending-state=(GstState)GST_STATE_VOID_PENDING; 0:00:33.373994955 [335m 6130[00m 0x55c33a472990 [33;01mLOG [00m [00m decodebin gstdecodebin2.c:5518:gst_decode_bin_handle_message:<decoder>[00m dynlocking from thread 0x55c33a472990 0:00:33.374006849 [335m 6130[00m 0x55c33a472990 [33;01mLOG [00m [00m decodebin gstdecodebin2.c:5518:gst_decode_bin_handle_message:<decoder>[00m dynlocked from thread 0x55c33a472990 0:00:33.374010019 [335m 6130[00m 0x55c33a472990 [33;01mLOG [00m [00m decodebin gstdecodebin2.c:5520:gst_decode_bin_handle_message:<decoder>[00m dynunlocking from thread 0x55c33a472990 0:00:33.374020354 [335m 6130[00m 0x55c33a472990 [37mDEBUG [00m [00m decodebin gstdecodebin2.c:5627:gst_decode_bin_handle_message:<decoder>[00m Forwarding msg error message: 0x7f64ac38a610, time 99:99:99.999999999, seq-num 553, element 'icydemux1', GstMessageError, gerror=(GError)NULL, debug=(string)"gsticydemux.c\(481\):\ gst_icydemux_typefind_or_forward\ \(\):\ /GstPipeline:stormpipe/GstBin:bin1/GstDecodeBin:decoder/GstICYDemux:icydemux1:\012No\ caps\ found\ for\ contents\ within\ an\ ICY\ stream"; [storm::player] [ERROR] Stream error: gsticydemux.c(481): gst_icydemux_typefind_or_forward (): /GstPipeline:stormpipe/GstBin:bin1/GstDecodeBin:decoder/GstICYDemux:icydemux1: No caps found for contents within an ICY stream [storm::player] [ERROR] Stream error: gstbasesrc.c(3055): gst_base_src_loop (): /GstPipeline:stormpipe/GstBin:bin1/GstSoupHTTPSrc:source: streaming stopped, reason error (-5) [storm::player] [ERROR] Stream error: gstqueue.c(988): gst_queue_handle_sink_event (): /GstPipeline:stormpipe/GstBin:bin1/GstQueue:ibuf: -- Geoff</body></html>