Newbie With v4l2sink/v4l2loopback Problem

Ramberg andyr at paulbunyan.net
Mon Jan 28 20:21:40 PST 2013


Hello,

I'm a total newbie with Gstreamer and I'd really appreciate some help with a
problem I'm having.   I'm trying to duplicate my Hauppauge BT878 WINTV input
(/dev/video0) to my video4linux loopbacks (/dev/video1 & /dev/video2).  

A test source works fine, ie. "gst-launch -v videotestsrc ! v4l2sink
device=/dev/video1" but when I try my video card input ie.  "gst-launch
v4l2src device=/dev/video0 ! queue ! ffenc_mpeg2video bitrate=2000000 !
mpegtsmux ! v4l2sink sync=true device=/dev/video1"  it fails to sync up...

Output:

Setting pipeline to PAUSED ...
libv4l2: error getting pixformat: Invalid argument
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
ERROR: from element /GstPipeline:pipeline0/MpegTsMux:mpegtsmux0: Failed
writing output data to stream 00e0
Additional debug info:
mpegtsmux.c(964): mpegtsmux_collected ():
/GstPipeline:pipeline0/MpegTsMux:mpegtsmux0
Execution ended after 100970739 ns.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...







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