On Wednesday 02 Feb 2005 21:54, MacNean C. Tyrrell wrote: > Ivor Hewitt wrote: snippety
> Would the makes of windvd > or powerdvd whatever be able to give information? > Not a snowflakes chance in hell. > Plus below it mentions mpeg1/2 standard compliance, since it's standard > couldn't there be a way to write code based on the standard to use the > decoder? > Well all the the mpeg player code is "based on the standard" :) Its finding out what level of acceleration is provided and hooking in at the right level. It says it provides IDCT and MC acceleration. i.e. it provides XvMC style accelleration. > >2. Is there any software available at all? I assume there must be > > something otherwise why would they sell the chips? > > Supposedly windvd can use the dvd decoder to it's fullest potential, > according to sis website, there are 2 other dvd navigator systems that > can but their names escape me at this momment. The windows driver also > i believe has the ability to make use of the decoder. > I'm not sure how MPEG support is provided on Windows, I don;t know if its provided by extension drivers that are part of the video driver or if the DVD player app developers have to implement support in each app. > >4. Do you have the skill to disassemble a driver? > > I don't know. I was more hoping to get more info and pass that on to > Thomas Winischhofer and help him with the driver. I would love to > learn. I am a decent programmer, but this is something i've never done > before. I don't care if it takes me a long time, from the way mythtv > performs for me, unless hardware fails, i'll prolly keep using the same > system for a very long time, have for 1.5 years now, and therefore that > includes the sis gpu. > Well it isn't impossible, and it depends where you are in the world and the terms of the license agreement on the drivers as to what the legal status of doing it is... but it's certainly fun! :- http://www.ivor.it/cle266/guide.html :-) > >5. in what way is SIS refusing to help? what discussions have you had with > >them? > > I have not had any personal conversations with SiS. This information > was from Thomas Winischhofer, he's the one who wrote and upkeeps the sis > driver for linux. I personally wouldn't mind trying to contact them, i > just don't know where to start. LIke i said never done this before and > would love to. > Well it won't cost you anything to at least try and approach them and see if you can find out what the issues are. They might be prepared to release specs under NDA. Cheers, Ivor. _______________________________________________ mythtv-users mailing list [email protected] http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
