A couple of DVDs I watched had some pans which turned out really bad in
mplayer by default, using the deinterlace option seemed to make them better.
Most of the problems with the TV are different because of the type of
thing you are trying to watchthough I guess - e.g. I was just watching
tennis with tvtime, and it is really hard to get "right". It was pretty
jerky on basically all of the different algorithms, linear interpolation
was probably the worst, along with line doubler.
Regards, Rob.
Billy Biggs wrote:
Robert Reid (robreid@xxxxxxxxxxxxxxx):
yeah, make that 0x20000
I haven't noticed its poor quality on DVDs yet. It appears that the
mplayer I have doesn't support -tv, I'm downloading the current
version now and will try it out
DVDs are mostly progressive so you shouldn't be deinterlacing anyway,
or at least being careful what you deinterlace. Also, mplayer does not
output at the full framerate for interlaced DVDs, it outputs at half the
framerate as tvtime does, so there's a big quality difference there.
The linear blend filter blurs the last two input frames together
50/50. Here is an example of linear blend on a high motion info
channel:
http://vektor.theorem.ca/graphics/deinterlacing/motion-linearblend.png
Fast moving text is doubled on top of itself and becomes unreadable,
or blury. Using the twoframe algorithm we get:
http://vektor.theorem.ca/graphics/deinterlacing/motion-twoframe.png
Which improves the resolution on the static text, and solves our fast
motion text problem. The remaining problem is noise: we do want some
bluring, but more controlled. I'll be adding in some filters that will
help alot with this.
