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From: "Janusz Uzycki" <janusz.uzycki@elproma.com.pl>
To: "Guennadi Liakhovetski" <g.liakhovetski@gmx.de>
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Subject: SH7724, VOU, PAL mode
Date: Mon, 4 Jun 2012 19:32:05 +0200
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Hi Guennadi.

I am trying to force to proper work CS4954 encoder with sh4.
I want to use sh4 VOU in PAL mode (kernel 3.2.7). Do you have any experience 
with AK881x and PAL?
If I set PAL mode (v4l2-ctl -s) VOUCR::MD is still configured for NTSC. I 
noticed that VOU is limited to NTSC resolution: "Maximum destination image 
size: 720 x 240 per field". And indeed I had to change my encoder settings 
to NTSC-M CCIR601 timing 720x480 (PAL synch freq. only) for synced (stable) 
color video picture of BAR generated by the encoder (not VOU). On the other 
hand VOUDSR register has bit-limit 1024x512 (enough for PAL 768x576 
interlaced).
Another method for stable PAL picture (but 768x576) is change both VOUCR::MD 
to PAL output mode and set the encoder to PAL mode. Then the green picture 
has a bound about 480 line I think.
Unfortunately I can't still manage to work video data from VOU to the 
encoder - green picture only. Do you have any test program for video v4l2 
output? Does the idea fb->v4l2 output 
http://www.spinics.net/lists/linux-fbdev/msg01102.html is alive?

best regards
Janusz Uzycki
ELPROMA