The hardware supports it (theoretically at least), but it's never
implemented. Actually, I have a patch (somewhere) for the saa7115 that
partially implemented it, but it never worked well. I've removed the
false suggestion that cropping is supported from the v4l-dvb bleeding
edge driver.
Someone sufficiently motivated should be able to get it working, though.
Regards,
Hans
On Monday 25 February 2008 14:04, Peter Daum wrote:
> Even after looking through the sources I am still
> not sure whether the "crop" option doesn' work
> because of a problem in the driver/firmware or
> simply because the hardware can't do it ...
>
> Can anybody maybe think of another workaround?
> I am trying to encode a bunch of old videotapes.
> Around the edges there is a big strip without any
> useful information. Particularly annoying is the
> bottom with very agitated stripes and other noise
> that probably need quite some bandwidth and are also
> visually disturbing.
>
> (My CPU is not fast enouogh to transcode the video,
> which mostly is the motive for using a hardware
> encoder)
>
> Regards,
> Peter Daum
>
> --- Peter Daum <[EMAIL PROTECTED]> wrote:
> > Can I crop the captured video on a Hauppauge
> > PVR-350?
> >
> > "v4l2-ctl --get-cropcap" reports:
> >
> > Crop Capability Video Capture:
> > Bounds : Left 0, Top 0, Width 720, Height
> > 576
> > Default : Left 0, Top 0, Width 720, Height
> > 576
> > Pixel Aspect: 59/54
> >
> > which sounds to me like it should work within these
> > boundaries. With "--set-crop=..." I always get:
> > ioctl: VIDIOC_G_CROP failed
> >
> > independent of the actual values.
>
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