[mythtv] Capture Card Resolution
Bruce Markey
bjm at lvcm.com
Fri Mar 21 03:13:13 EST 2003
Edward Wildgoose wrote:
...
> I have tested with 786 and it DOES seem to do something. I
> don't know how to check that it really IS recording at 768
(turn off 'fixed aspect ratio' and press 'f' during playback
to see the video at the actual recording dimensions...)
> though, however, I get video out of the thing (although it
> skips on my machine). Quality is noticably higher than
> 640x480 actually.
Good enough. As long as the encoder library didn't spew errors
and it didn't seg fault or fail in some other way, it's okay.
> ...However, there is a line which appears to be scaling
> bits/sec (something like "scale = (h * w) / (640x480);" and this
> I assume is not quite correct on PAL sets?
Not a problem. This would be the scaled bit rate. It just
normalizes the bit rate to something. Greater than 1.0 is just
as valid as less than 1.0. Once you find a bit rate you like,
you can change the resolution without having to multiply the
bit rate to get the same quality. This is just a relative scale.
-- bjm
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