[Mplayer-users] TV Out

[Stephen Davies]

On Fri, 28 Sep 2001, Robinson, Chad wrote:

> Thanks for the offer, but actually, I'm not using direct video out. The ATI
> card automatically turns on its TV-out whenever you are in 640x480 or a text
> mode. Therefore, I use Linux Framebuffer at boot to go into 640x480, and
> stay in that mode forever after, using scaling in MPlayer to scale up
> smaller movies.


Yep - the Voodoo3 does the same - detects a connected video output at boot
time.

But I wanted to get 720x576 resolution working directly (from X), and
wanted overscan in order to fill my TV screen.  The voodoo uses a bt869
vga->video converter chip, which can be controlled via the lm_sensors
package.  It was quite easy to add support for a 720x576 mode to that
driver.


> The only problem is, no down-scaling in MPlayer. So, this does not work for
> movies wider(usually)/taller(never seen on) than 640x480. :-( I was thinking
> about trying to hack this in by reversing what the up-scaling does, but
> really don't know much about bilinear/bicubic math, so it'll have to wait
> for the moment.

I understand that many of the accelerated cards can't scale down.

> Otherwise, this is nearly a perfect solution. I get to save all the space of
> X, and I can have a fully automated solution. My project will have its own
> 640x480 SVGALib interface that I will write to allow the user to select a
> movie to play using an I/R remote control. No keyboard, no mouse.

Well - you and I are tackling the same project.  But for me I want X.  I
can then use many additional applications.

Steve



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