Negotiation error with streamiddemux

[Gst-Geek]

Hi,

I am trying to mux and demux raw video/audio using funnel and streamiddemux
respectively.

Below is the pipeline, funnel is used to mux audio/x-raw and video/x-raw.
Later the stream is demuxed through streamiddemux. Pipeline behaviour is
inconsistent across multiple runs.  Some times pipeline runs as expected and
some times I get negotiation error.

gst-launch-1.0 uridecodebin uri=file:Devdas.mp4 name=dec \
dec.! video/x-raw ! fun.sink_0 \
dec.! audio/x-raw ! fun.sink_1 \
funnel name=fun ! streamiddemux name=sid \
sid. ! video/x-raw !  videoconvert ! fakesink \
sid. ! audio/x-raw !  audioconvert ! fakesink


Why the behaviour is not consistent across mulitple runs ??
Why I am getting negotiation error ??

I am using 1.12.4 for testing.

Thanks in advance.

~ Vinod



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[Gst-Geek]

All,

I further debugged the streamiddemux behaviour.
Streamiddemux generated pad-added callback upon stream-start event, call
back comes with no caps. which is leading to negotiation error.

The sticky events comes in  stream-start, caps, segment and tag. I even
tried add pad after segment event but no luck. I still continue getting
negotiation error.

Regards,
Vinod




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[Gst-Geek]

I have raised bug for the same and submitted the patch.

https://bugzilla.gnome.org/show_bug.cgi?id=794168

Though the patch do not work for all the pipeline. Please feel free to
review the patch.

Regards,
Vinod



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