On Aug 1, 2005, at 9:17 AM, Donavan Stanley wrote:
On 7/31/05, Scott <[EMAIL PROTECTED]> wrote:
I had two issues that for me are critical.
When using xvmc with Xine none of the OSD overlays would work. This
meant no on screen information, subtitles, or closed captions during
playback. I didn't investigate this to much however I think it could
be worked around. One possibility seems to be with the Xine xxmc
support.
XvMC appears to do very simple one-field deinterlacing in hardware.
Xine 1.1.0 has experimental XvMC bob deinterlace support which I
enabled and saw some improvements. I compared various DVD (480i
content) scenes played via Xv with Xine deinterlace post processing
and XvMC with hardware deinterlace. It was pretty clear to me that Xv
with deinterlace post processing was producing a much better picture
than XvMC using hardware deinterlacing.
You know, you *might* want to test with Myth instead of Xine since
neither of those issues apply to Myth.
I'm assuming by 'Myth' you are referencing the Myth Internal video
player? For 480i DVD playback using xine seemed like a valid test to
me as I was able to directly compare the same source material via two
different display methods. I gather what you're suggesting is that I
should have also used the Myth Internal video player with xvmc
support and compare the results against xine + xv. Honestly, I
didn't think to try the Internal video player because it seems most
people, including myself, use Xine for DVD playback to get DVD menu
support.
Is there technical documentation on how the Myth Internal video
player uses XvMC along with any other post processing filters?
(Besides the source code, of course!) I've seen posts to the list
suggesting that when using XvMC with Myth it's best to also disable
the deinterlace option in Myth as well as the two could conflict.
Does this sound accurate to you and does that mean that Myth + xvmc
relies strictly on the xmvc deinterlace routines in hardware?
It may be possible that the Myth Internal video player with xvmc can
provide better quality deinterlace and post processing than Xine +
xv. Obviously a deeper understanding of how Myth works with xvmc and
more objective tests are needed.
--
Scott <[EMAIL PROTECTED]>
AIM: BlueCame1
_______________________________________________
mythtv-users mailing list
mythtv-users@mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
