On Sat, 9 Jun 2001, Pigeon wrote:
> Firstly, I don't seem to be able to do any screen dump with the
> dvd output. All I got is a blue blank window. It happens to all other dvd
> players I've tried too, so is there a workaround with this? It seems that
> it's a problem of the xv of my display driver or X?
it's not really a "problem" but the logical consequence of video overlay
mechanisms used by your video driver.
you can use xshm output instead (xine -s).
> Another thing, for some dvds, or some files in a dvd, I can see
> horizontal lines, especially for stuffs with a lot of motions.
> After that I tried using powerdvd in win98, just as a test, and
> found that in the video settings, there are two modes called bob and
> weave, which bob will actually eliminates the horizontal lines (They
> call it horizontal streaking.
> Now I'm wondering if I can elinimate that problem on linux?
yep, sure - simply implement "bob" in mpeg2dec.
The problem only arouses on interlaced streams; currently mpeg2dec always
waeves the two half-frames into one frame. "Bob" simply duplicates the
lines of one half-frame and discards the other. IMHO the best solution
would be a combination of both, use "weave" in those areas where there's
lillte/no motion (=>full quality) and use bob in those areas where there's
heavy motion (no motion-artefacts).
time is a funny concept
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