John Harvey wrote:
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:ivtv-devel-
[EMAIL PROTECTED] On Behalf Of Duncan Webb
Sent: 15 November 2005 22:06
To: Discussion list for development of the IVTV driver
Subject: Re: [ivtv-devel] ivtv framebuffer is broken with PVR350
John Harvey wrote:
I do have an issue with the lack of mmap support because it means that
you can't use fbdev, SDL or directfb, which are less processor demanding
than X and the xv driver. In other words the P3 box won't play movies
smoothly but TV is okay. But that's another problem.
I don't believe that mmap support will help. The Xv code is pretty efficient
and if mmap were there I am not convinced it would help. The extra data that
is required to be transferred for these cases over that needed for Xv hurts
the system a lot. I agree if you are just using X then fbdev etc. may be
more efficient.
There is still more work to be done to improve the Xv driver a bit more so
that may well help.
Hi John,
If I use the following command from the console:
/usr/bin/mplayer -vo sdl -dvd-device "//freevo/movies/action/My DVD.iso"
dvd://1
or
/usr/bin/mplayer -vo directfb -dvd-device "//freevo/movies/action/My
DVD.iso" dvd://1
then the movie plays smoothly on the console.
If I startx on the console or the tv and then run the above command with
-vo xv then it sort of freezes and jumps every few seconds. Which
indicates that it's dropping frames but mplayer is not reporting dropped
frames. It also indicates that it is not a problem with the ivtv-x driver.
It sort of indicates that if the ivtv framebuffer had mmap the I could
use SDL.
I've not done that same tests on the AMD64 machine but will do.
Regards,
Duncan
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