How to get from video/x-gst-fourcc-H261 to video/x-h261

fkoh frederickk at
Mon Mar 18 11:30:49 UTC 2019

Thanks for the tip. How do I use capfilter to force things?

I tried capsfilter caps=video/x-h261 before qtdemux, and then when that
failed, after. That failed too.

The details:
gst-launch-1.0 -v filesrc !  qtdemux name=demux
demux.video_0 ! capsfilter caps=video/x-h261 ! fakesink

WARNING: from element /GstPipeline:pipeline0/GstQTDemux:demux: Delayed
linking failed.
Additional debug info:
./grammar.y(506): gst_parse_no_more_pads ():
failed delayed linking pad  video_0 of GstQTDemux named demux to some pad of
GstCapsFilter named capsfilter0
ERROR: from element /GstPipeline:pipeline0/GstQTDemux:demux: GStreamer
encountered a general stream error.
Additional debug info:
qtdemux.c(5520): gst_qtdemux_loop ():
streaming stopped, reason not-linked

Many thanks for any help you can provide

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