pipeline working in node.js or console, but fails in nw.js

[infantilo]

I'm struggling with the following, simple pipeline:

const pipeline = new gstreamer.Pipeline('filesrc location=/home/rpi/Downloads/Off-Lazarov.mp4 ! decodebin ! autovideosink');

uring this line in node.js works fine. But The same line used within nw.js ( process.versions['node-webkit'] == 0.41.3 ) returns:

[4758:4758:0814/115547.642413:ERROR:CONSOLE(5192)] "Cannot find context with specified id", source: devtools://devtools/bundled/shell.js (5192) [4758:4758:0814/115547.642636:ERROR:CONSOLE(0)] "TypeError: Cannot read property 'exceptionDetails' of null", source: (0)

{type: "state-changed", name: "GstMessageStateChanged", old-state: "GST_STATE_NULL", new-state: "GST_STATE_READY", pending-state: "GST_STATE_VOID_PENDING"} index.html:19 {type: "state-changed", name: "GstMessageStateChanged", old-state: "GST_STATE_NULL", new-state: "GST_STATE_READY", pending-state: "GST_STATE_VOID_PENDING"} index.html:19 {type: "state-changed", name: "GstMessageStateChanged", old-state: "GST_STATE_NULL", new-state: "GST_STATE_READY", pending-state: "GST_STATE_VOID_PENDING"} index.html:19 {type: "state-changed", name: "GstMessageStateChanged", old-state: "GST_STATE_NULL", new-state: "GST_STATE_READY", pending-state: "GST_STATE_VOID_PENDING"} index.html:19 {type: "state-changed", name: "GstMessageStateChanged", old-state: "GST_STATE_NULL", new-state: "GST_STATE_READY", pending-state: "GST_STATE_VOID_PENDING"} index.html:19 {type: "state-changed", name: "GstMessageStateChanged", old-state: "GST_STATE_NULL", new-state: "GST_STATE_READY", pending-state: "GST_STATE_PLAYING"} index.html:19 {type: "GST_STREAM_STATUS_TYPE_CREATE", name: "GstMessageStreamStatus", owner: "(GstTypeFindElement) typefind", object: "(GstTask) typefind:sink"} index.html:19 {type: "state-changed", name: "GstMessageStateChanged", old-state: "GST_STATE_READY", new-state: "GST_STATE_PAUSED", pending-state: "GST_STATE_VOID_PENDING"} index.html:19 {type: "state-changed", name: "GstMessageStateChanged", old-state: "GST_STATE_READY", new-state: "GST_STATE_PAUSED", pending-state: "GST_STATE_VOID_PENDING"} index.html:19 {type: "GST_STREAM_STATUS_TYPE_ENTER", name: "GstMessageStreamStatus", owner: "(GstTypeFindElement) typefind", object: "(GstTask) typefind:sink"} index.html:19 {type: "state-changed", name: "GstMessageStateChanged", old-state: "GST_STATE_NULL", new-state: "GST_STATE_READY", pending-state: "GST_STATE_VOID_PENDING"} index.html:19 {type: "GST_STREAM_STATUS_TYPE_CREATE", name: "GstMessageStreamStatus", owner: "(GstQTDemux) qtdemux2", object: "(GstTask) qtdemux2:sink"} index.html:19 {type: "state-changed", name: "GstMessageStateChanged", old-state: "GST_STATE_READY", new-state: "GST_STATE_PAUSED", pending-state: "GST_STATE_VOID_PENDING"} index.html:19 {type: "GST_STREAM_STATUS_TYPE_ENTER", name: "GstMessageStreamStatus", owner: "(GstQTDemux) qtdemux2", object: "(GstTask) qtdemux2:sink"} index.html:19 {type: "GST_STREAM_STATUS_TYPE_CREATE", name: "GstMessageStreamStatus", owner: "(GstMultiQueue) multiqueue2", object: "(GstTask) multiqueue2:src_0"} index.html:19 {type: "GST_STREAM_STATUS_TYPE_ENTER", name: "GstMessageStreamStatus", owner: "(GstMultiQueue) multiqueue2", object: "(GstTask) multiqueue2:src_0"} index.html:19 {type: "state-changed", name: "GstMessageStateChanged", old-state: "GST_STATE_NULL", new-state: "GST_STATE_READY", pending-state: "GST_STATE_VOID_PENDING"} index.html:19 {type: "state-changed", name: "GstMessageStateChanged", old-state: "GST_STATE_READY", new-state: "GST_STATE_PAUSED", pending-state: "GST_STATE_VOID_PENDING"} index.html:19 {type: "decoder", name: "H.264 (High Profile)-Decoder", detail: "video/x-h264, level=(string)4.1, profile=(string)h… bit-depth-luma=(uint)8, bit-depth-chroma=(uint)8"} index.html:19 {type: "GST_STREAM_STATUS_TYPE_CREATE", name: "GstMessageStreamStatus", owner: "(GstMultiQueue) multiqueue2", object: "(GstTask) multiqueue2:src_1"} index.html:19 {type: "GST_STREAM_STATUS_TYPE_ENTER", name: "GstMessageStreamStatus", owner: "(GstMultiQueue) multiqueue2", object: "(GstTask) multiqueue2:src_1"} index.html:19 {type: "state-changed", name: "GstMessageStateChanged", old-state: "GST_STATE_NULL", new-state: "GST_STATE_READY", pending-state: "GST_STATE_VOID_PENDING"} index.html:19 {type: "state-changed", name: "GstMessageStateChanged", old-state: "GST_STATE_READY", new-state: "GST_STATE_PAUSED", pending-state: "GST_STATE_VOID_PENDING"} index.html:19 {type: "state-changed", name: "GstMessageStateChanged", old-state: "GST_STATE_NULL", new-state: "GST_STATE_READY", pending-state: "GST_STATE_VOID_PENDING"} index.html:19 {type: "state-changed", name: "GstMessageStateChanged", old-state: "GST_STATE_READY", new-state: "GST_STATE_PAUSED", pending-state: "GST_STATE_VOID_PENDING"} index.html:19 {type: "duration-changed", name: "GstMessageDurationChanged"} index.html:19 {type: "warning", name: "GstMessageWarning", gerror: undefined, debug: "./grammar.y(506): gst_parse_no_more_pads (): /GstP…some pad of GstAutoVideoSink named autovideosink2"} index.html:19 {type: "state-changed", name: "GstMessageStateChanged", old-state: "GST_STATE_READY", new-state: "GST_STATE_PAUSED", pending-state: "GST_STATE_VOID_PENDING"} index.html:19 {type: "error", name: "/GstPipeline:pipeline2/GstDecodeBin:decodebin2/GstQTDemux:qtdemux2", gerror: undefined, debug: "qtdemux.c(6605): gst_qtdemux_loop (): /GstPipeline…demux2:↵streaming stopped, reason not-linked (-1)", details: "details, flow-return=(int)-1;", …}

[dturing]

@infantilo is this still an open issue for you, or did you find the reason?

I suspect an environment issue like gstreamer not finding some plugin, plus the exception going wrong; but I don't really have the time to did into nw.js issues.

[infantilo]

It seems, as if an outdated nw.js version. Using the version nw 0.48.1 and above solved the problem. So this was no superficial issue! Therefore i'm closing this issue.