MKV h.264 Hardware Acceleration DXVA - Page 2

vlad · **1st April 2008, 10:25 PM**

Was about 40% before, but after video card upgrade and CPU upgrade it is low as I say
Palit 9600 GT, 6600 quad core. 9600 has native h.264 decoding.

Severus606 · **1st April 2008, 10:35 PM**

Quote:

Originally Posted by vlad

h.264 decoding.

Yes (and so does everything from the 7xxx series up), but only via DxVA, and CCCP/ffdshow doesn't leverage DxVA. So its either being decoded on your CPU, which doesn't seme possible at that resolution and bitrate with that CPU, or somehow DxVA is being invoked, in which case it'd be interesting to find out what the solution is as then the original poster could use it to resolve his problem.

kiffies · **2nd April 2008, 08:28 PM**

Amen to that

My GFX card is a 2600XT which is supposed to have onboard H264 decoding. I read last night on a forum that if I rename the files to .avi or .mp4 then powerdvd would be able to accelerate them properly, however I tried this and it didn't seem to help either.

linzki · **13th April 2008, 06:04 AM**

I had same problem that this threads starter has. Problem was with subtitles, namely .sub subtitles.

I used subtitle workshop to open that .sub file and saved it as subrip file (.srt) now it takes only about 50% of my cpu time and video and sound works perfectly.

i've tried about every codec that there is and it didn't help, just this little tweak with subtitles worked. I think this works with every mkv codec (haali, or core av...)

kiffies · **13th April 2008, 02:10 PM**

Thanks for the promising repsonse;

Does this apply even with an MKV without subtitles? Most of them don't have subtitles and the ones that do, I normally right click vobsub in the system tray and exit it, but I don't think it makes any difference

linzki · **13th April 2008, 02:52 PM**

Another easy one worth to try is, if u use kmplayer: start video and press alt+F for super speed mode or ctrl+alt+F for high speed mode

______________________
Vista 64 ultimate
Amd Athlon am2 3800+
memory 4gb
gf 7900gs
SB x-fi xtreme music

krypto · **15th April 2008, 10:38 PM**

Despite numerous searches I haven't found a way to easily turn off mkv sub titles. Is there a way to disable them by default?

From this thread and other reading I also take it that at the moment there is no way to offload h264 to dxva. Bummer, seems like a bit of a waste with my 3850.

Vlad, I'm sure in another thread you said you don't use or recommend codec packs. Isn't that what CCCP is?

krypto · **15th April 2008, 11:33 PM**

This thread provides a lot of info on the mkv dvxa problem and some simple solutions

vlad · **15th April 2008, 11:36 PM**

Quote:

Originally Posted by krypto

Vlad, I'm sure in another thread you said you don't use or recommend codec packs. Isn't that what CCCP is?

I use haali splitter for mkv's and ffdshow for everything else. Logifuse has advised me a long time ago, that ffdshow can be properly configured so I did and never regretted his advise. All I do for mkv's is just renaming it to avi.

krypto · **15th April 2008, 11:41 PM**

Quote:

Originally Posted by vlad

I use haali splitter for mkv's and ffdshow for everything else. Logifuse has advised me a long time ago, that ffdshow can be properly configured so I did and never regretted his advise. All I do for mkv's is just renaming it to avi.

Why do you change mkv to avi? and how does haali pick up the file?

kiffies · **16th April 2008, 08:13 PM**

Found an interesting program today called Media player Classic Home Cinema.

http://tibrium.neuf.fr/

This program will play MKV's with proper DXVA. I tested several MKV's today and even during the heaviest scenes the CPU barely reached 10%, awesome.

Problem is, how can I adapt this to work with VMC? You can download the player or the individual filters, but how would you then configure them?

Worth a look anyway

krypto · **16th April 2008, 10:55 PM**

So now we know it's possible. Does it work with 1080P?