x264 playback

[IRMA1024]

I had ripped DVD movie using x264 (8x8DCT,4 consecutive B-frame,4 max ref. frame,RDO ME, using MKV container, container muxed audio and srt subtitle,res.720x400)

then i tested it on my PC, no problem at all, movie played smooth

My PC Spec : P4-2.4,Mem256,VGA-R9200SE-64MB
Playback software : Media Player Classic 6.4.8.4 + latest ffdshow from x264.nl + DX9c

then i tried on different PC, it played very slow, unsync between video and audio (video slower), sometime it won't play at all (debug error on player),no ffdshow postprocessing turned on.

Test PC Spec : P4-2.0,Mem256,VGA-iEG onboard 64MB shared
Playback software : same

and my friend PC, same spec except VGA FX5200 128MB have the same problem (slow playback)

- so what is exactly system requirement for x264 playback??
- what is the main problem for playback?
- how to increase playback speed (i mean to play it smoothly) for mid/low-end PC spec?

thanks..

[Sharktooth]

It's not x264... it's h.264 in general, including all implementations.
I would say minimum requirement is a 2.4Ghz (or equivalent) CPU.
You can however disable some options to make the stream playable on older PCs. Use the forum search function to find how, it has been already discussed to death...

[madoka]

It's not x264... it's h.264 in general, including all implementations.
I would say minimum requirement is a 2.4Ghz (or equivalent) CPU.
You can however disable some options to make the stream playable on older PCs. Use the forum search function to find how, it has been already discussed to death...
Actually, I think you've overspec'ed a little bit. I can playback AVC on my 1.2 GHz PIII just fine--if that's all it's doing.

[SeeMoreDigital]

Actually, I think you've overspec'ed a little bit. I can playback AVC on my 1.2 GHz PIII just fine--if that's all it's doing.Yes... but at what resolutions?

I don't know how the playback specs for MPEG-4 AVC are compiled but personally I think they should be based on DVD resolutions of 720x576 (414,720 pixels) at 25fps progressive.


Cheers

[madoka]

Yes... but at what resolutions?
720x400 @ 23.976 fps, with stereo mp3 audio track.

[GUTB]

I get 640x480 @ 30 no frame dropping on a 1.4Ghz Athlon XP.

[Ishan]

I get anamorphic DVD source (704x544@25) to playback at fullspeed on my sempron@1.8ghz with HeAAC 5.1

[IRMA1024]

It's not x264... it's h.264 in general, including all implementations.
I would say minimum requirement is a 2.4Ghz (or equivalent) CPU.
You can however disable some options to make the stream playable on older PCs. Use the forum search function to find how, it has been already discussed to death...

what option?

i encoded it with
8x8DCT, 4bframe,4refframe,RDO,res.720x400,MKV,oggvorbis,played with no postprocessing turned on

does it possible for more improvement on decoder (ffdshow) in future?

[berrinam]

what option?

i encoded it with
8x8DCT, 4bframe,4refframe,RDO,res.720x400,MKV,oggvorbis,played with no postprocessing turned on
As Sharktooth said, as you quoted in your post, it can be found in numerous places on this forum by using search.

[Sharktooth]

In my experience MKV requires complex filters, and vorbis too.
Try using MP4 and AAC for testing and if it gets better and report back.

[stephanV]

In my experience MKV requires complex filters, and vorbis too.
Try using MP4 and AAC for testing and if it gets better and report back.
Not really, mkv splitting is not anymore expensive than AVI or whatever other container. and i dont think AAC is really faster to decode than Vorbis.

[Teegedeck]

I agree, the influence of the container format MKV on CPU load is absolutely minimal. Neglegible.

[GUTB]

Except that MKV's splitters are known to be buggy piles of garbage -- I assume that's what others are getting at.

I encode h264 streams using x264+vdub making AVIs. MS's splitter handles them just fine and therefore EVERYTHING plays them -- WMP, Real, QT, BSP, and so on. I use mp4box to create MP4s when I want to add AAC streams as I have yet to find a working tool that allows muxing of h264+AAC in AVI. These streams work in WMP, are buggy in Real, etc.

[bond]

GUTB, i told you to gather knowledge before continuing flaming around

my patience is over and you are striked for rule 4

if you dont change your behaviour drastically of only flaming around telling people how everything sucks and is crap and at the same time proving that you have absolutely no clue (eg qt doesnt use ms' avi dshow splitter, nor directshow at all), i can ensure you you will not post for a long time on this forum
you are one strike away from being banned, beaware

[GUTB]

I was just saying MKV's splitter is buggy, sorry if anyone took that as a flame I didn't mean to be insulting.