Problem with YUY2 format in pipeline

[Anthony Buckley]

Hello,
I have two problems with a pipeline that I'm using to create a file in YUY2
format. I've tried a number of variations but the problem remains. The
pipeline is:

gst-launch-1.0 -e v4l2src device="/dev/video0" ! videorate ! video/x-raw,
format=YUY2, width=640, height=480, framerate=10/1 ! tee name="splitter" !
queue leaky=1 ! videoconvert ! ximagesink sync=false splitter. ! queue
leaky=1 ! videoconvert ! video/x-raw, format=YUY2, width=640, height=480,
framerate=10/1 ! avimux ! filesink location=test.avi

The first problem is when I run the above, the video is frozen and when I
Ctrl & C after a while the only  output in test.avi is a few frames. And
yet, if I substitute 'I420' in place of the first 'YUY2', it works.

If I break it up to run a pipeline just to view only its fine, ie.

gst-launch-1.0 -e v4l2src device="/dev/video0" ! videorate ! video/x-raw,
format=YUY2, width=640, height=480, framerate=10/1 ! videoconvert !
ximagesink

but doing the same for the capture part still doesn't work. ie.

gst-launch-1.0 -e v4l2src device="/dev/video0" ! videorate ! video/x-raw,
format=YUY2, width=640, height=480, framerate=10/1 ! videoconvert ! avimux
! filesink location=test.avi

Substituting 'I420' here still does not work, but interestingly, if use
another camera (not YUY2 capable), it does. ie.

gst-launch-1.0 -e v4l2src device="/dev/video1" ! videorate ! video/x-raw,
format=I420, width=640, height=480, framerate=10/1 ! videoconvert ! avimux
! filesink location=test.avi

So I'm starting to think that there is something about this particular
camera causing problems. Its a built-in  laptop camera.


Setting GST_DEBUG=1 shows nothing unusual (?) I think:-

Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
^Chandling interrupt.
Interrupt: Stopping pipeline ...
EOS on shutdown enabled -- Forcing EOS on the pipeline
Waiting for EOS...
Got EOS from element "pipeline0".
EOS received - stopping pipeline...
Execution ended after 0:00:08.126906858
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...

The second problem is if I substitute 'xvimagesink' for 'ximagesink' in the
pipeline that works (using I420),  the result is that video is frozen and
the output in test.avi is just a few frames again, which is a bit baffling.

If anyone has any ideas or can point out where I'm going wrong I'd
appreciate it.

Thanks. Regards. Tony.
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