Most efficient decoder for H264?

Scottland · 24 Jan 2010 at 19:55

Hi Just wondering which is the most efficient codec for H264, i.e. low CPU usage.

I'm currently using MPC-HC with FFDShow, tried the DXVA option but it had problems issues whereby it wouldn't resume from pause and seek didn't work.

This is under W7 btw...

Any better to use?

Scottland · 25 Jan 2010 at 08:29

dbmzk1 said:
CoreAVC is the most efficient CPU based decoder, plus and supports CUDA (hardware like DXVA), but it's not free.

32-bit MPC-HC is by far the best choice though, free or otherwise. You don't need FFDShow, or any other piece of software.

Yeah I've used CoreAVC before, but don't really fancy paying for it to be honest.

mrk said:
You probably have the EVR settings incorrect and/or a conflicting codec installed too.

Post screenshots of the EVR output settings page?

DXVA via internal decoding should load instantly, much faster in MPC than any external decoder like ffdshow/divx/coreavc.

I'll do that later when I'm home, cheers.

I did notice that using WMP12 resulted in <20% CPU usage, which was at least as good if not better than DXVA in MPC-HC.

This was with a 720P mkv...

Scottland · 25 Jan 2010 at 09:20

This is only a CULV laptop, so I'd imagine sub 5% would be optimistic for 720P content

Scottland · 25 Jan 2010 at 17:03

Really? Impressive!

Scottland · 25 Jan 2010 at 20:14

Ok, there are the EVR output settings then?

Scottland · 25 Jan 2010 at 20:26

mrk said:
Where are they?

Sorry, where are they?

Scottland · 25 Jan 2010 at 20:33

mrk said:
You said there they are but asked a question at the end

I meant where are the EVR output settings!

Scottland · 25 Jan 2010 at 20:40

You said to post screenshots of the EVR settings page, I'm asking where the EVR settings are

Although I'll take your settings if you're offering, this Asus is pretty similar in spec to the 13z...

Scottland · 25 Jan 2010 at 20:45

Here they are:

Scottland · 25 Jan 2010 at 20:57

Ok, I'll give that a go - cheers