Deinterlace plugin working backwards ?

[Rob Heig]

Hello,
I'm trying to deinterlace an interlaced raw video, but despite having spent
2 days on this I am still stuck. The interesting thing is that, by looking
at the output of gst-launch, I see weird results:

gst-launch-1.0 -v filesrc location=vvvv.raw ! videoparse width=768
height=288 format=4 framerate=50/1 interlaced=true ! videoconvert !
deinterlace ! autovideosink

Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
/GstPipeline:pipeline0/GstVideoParse:videoparse0/GstRawVideoParse:inner_rawvideoparse.GstPad:src:
caps = video/x-raw, format=(string)YUY2, width=(int)768, height=(int)288,
interlace-mode=(string)interleaved, pixel-aspect-ratio=(fraction)1/1,
chroma-site=(string)jpeg, colorimetry=(string)bt601,
framerate=(fraction)50/1
/GstPipeline:pipeline0/GstVideoParse:videoparse0.GstGhostPad:src: caps =
video/x-raw, format=(string)YUY2, width=(int)768, height=(int)288,
interlace-mode=(string)interleaved, pixel-aspect-ratio=(fraction)1/1,
chroma-site=(string)jpeg, colorimetry=(string)bt601,
framerate=(fraction)50/1
/GstPipeline:pipeline0/GstVideoConvert:videoconvert0.GstPad:src: caps =
video/x-raw, width=(int)768, height=(int)288,
interlace-mode=(string)interleaved, pixel-aspect-ratio=(fraction)1/1,
framerate=(fraction)50/1, format=(string)YV12
/GstPipeline:pipeline0/GstDeinterlace:deinterlace0.GstPad:src: caps =
video/x-raw, width=(int)768, height=(int)288,
interlace-mode=(string)progressive, pixel-aspect-ratio=(fraction)1/1,
framerate=(fraction)100/1, format=(string)YV12
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0.GstGhostPad:sink.GstProxyPad:proxypad2:
caps = video/x-raw, width=(int)768, height=(int)288,
interlace-mode=(string)progressive, pixel-aspect-ratio=(fraction)1/1,
framerate=(fraction)100/1, format=(string)YV12
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0/GstXvImageSink:autovideosink0-actual-sink-xvimage.GstPad:sink:
caps = video/x-raw, width=(int)768, height=(int)288,
interlace-mode=(string)progressive, pixel-aspect-ratio=(fraction)1/1,
framerate=(fraction)100/1, format=(string)YV12
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0.GstGhostPad:sink:
caps = video/x-raw, width=(int)768, height=(int)288,
interlace-mode=(string)progressive, pixel-aspect-ratio=(fraction)1/1,
framerate=(fraction)100/1, format=(string)YV12
/GstPipeline:pipeline0/GstDeinterlace:deinterlace0.GstPad:sink: caps =
video/x-raw, width=(int)768, height=(int)288,
interlace-mode=(string)interleaved, pixel-aspect-ratio=(fraction)1/1,
framerate=(fraction)50/1, format=(string)YV12
/GstPipeline:pipeline0/GstVideoConvert:videoconvert0.GstPad:sink: caps =
video/x-raw, format=(string)YUY2, width=(int)768, height=(int)288,
interlace-mode=(string)interleaved, pixel-aspect-ratio=(fraction)1/1,
chroma-site=(string)jpeg, colorimetry=(string)bt601,
framerate=(fraction)50/1
/GstPipeline:pipeline0/GstVideoParse:videoparse0.GstGhostPad:src.GstProxyPad:proxypad1:
caps = video/x-raw, format=(string)YUY2, width=(int)768, height=(int)288,
interlace-mode=(string)interleaved, pixel-aspect-ratio=(fraction)1/1,
chroma-site=(string)jpeg, colorimetry=(string)bt601,
framerate=(fraction)50/1
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
ERROR: from element
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0/GstXvImageSink:autovideosink0-actual-sink-xvimage:
Output window was closed
Additional debug info:
xvimagesink.c(555): gst_xv_image_sink_handle_xevents ():
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0/GstXvImageSink:autovideosink0-actual-sink-xvimage
Execution ended after 0:00:02.956028008
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...

I would naively expect the deinterlace plugin to take a 50 Hz, 720x288
interlaced video and give as output a 25 Hz, 720x576 one.
Instead, the resolution stays the same, while the frame rate doubles....
????
I have tested this on gstreamer 1.45 and gstreamer 1.6.
Am I missing anything?
Thanks in advance for all suggestions!
Best,
Rob
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