Mapping the "gst-launch -v playbin2" information messages to discrete pipeline

[Andreas Rödig]

Hi Icarus,

use this:

$ export GST_DEBUG_DUMP_DOT_DIR=/tmp
$ gst-launch playbin uri=.....
$ cd /tmp
$ dot -Tpng -oout.png <filename>.dot

You need package graphviz.

Regards,
Andreas


Am 05.09.2011 14:01, schrieb Icarus Alive:
> Hi,
>
> Is there a known / deterministic way to convert the information
> messages printed on screen, when one launches a pipeline like this --
>
> $ gst-launch -v playbin2 uri="..."
>
> to a pipeline with discrete elements/filter etc. ?
>
> I have an IPcamera output available muxed in asf format, and while I
> can get "playbin2" to play it, I am trying to create a pipeline that
> instead of playing it, records audio and video into 2 separate files.
>  From the information messages printed on screen, with the successful
> run of playbin2, I think I've got some clear good clues, I was
> wondering if there is a deterministic way to convert the series of
> those into a pipeline.
>
>
> For example, here's a small initial part of the messages printed --
>
> /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstTypeFindElement:typefindelement0.GstPad:src:
> caps = video/x-ms-asf
> /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20/GstTypeFindElement:typefind:
> force-caps = video/x-ms-asf
> /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20:
> sink-caps = video/x-ms-asf
> /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20/GstTypeFindElement:typefind.GstPad:src:
> caps = video/x-ms-asf
> /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstQueue2:queue20.GstPad:sink:
> caps = video/x-ms-asf
> /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstQueue2:queue20.GstPad:src:
> caps = video/x-ms-asf
> /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20/GstTypeFindElement:typefind.GstPad:sink:
> caps = video/x-ms-asf
> /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20.GstGhostPad:sink:
> caps = video/x-ms-asf
> /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20.GstGhostPad:sink.GstProxyPad:proxypad0:
> caps = video/x-ms-asf
> /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20/GstASFDemux:asfdemux0.GstPad:sink:
> caps = video/x-ms-asf
> /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20/GstMultiQueue:multiqueue0:
> max-size-buffers = 5
>
> and reading the hints I've translated it (roughly) into --
>
> $ gst-launch uridecodebin ! video/x-ms-asf ! queue ! asfdemux ! tee ...
>
> but of course, I don't have the full pipeline yet. I am happy to do
> this manually, but is this a valid/right approach ?
>
> thanks,
> Icarus
> _______________________________________________
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> gstreamer-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

-- 
Andreas Rödig

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Tel.: 0821 / 800 60 -34
Fax.: 0821 / 800 60 -55
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