Lossless Stuff

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Lossless Stuff

Postby Rapture** » Fri Jul 13, 2007 12:09 pm

So I've got this problem...


Yesterday I finished segmenting of my footage for my next vid,and now I have this little problem - PC plays back my rendered footage too slowly,and that affects my editing,it's very hard to sync up! My clips are in Lagarith codec .avi format files.

I tried rendering a little clip with different codecs to check out if it's just my pc is too slow.. So here are statistics of my check versions :

Version 1 - Uncompressed RGB :

Code: Select all
Video Steam :
File - L:\Intro Theme.avi
Size - 731 MB (748,758 KB / 766,728,192 bytes)
Lenght - 0:36.670
Frames  - 1,099
Kbps - 165722
Pics/s - 29.970
Frames/s - 29.970
Resolution - 640 x 360
sar - 1.778 (16:9)
par - 1.000 (1:1)
dar - 1.778 (16:9)
Audio Steam :
Codec - PCM Audio
Stats - 48000Hz  1536 kb/s tot (2 chnls)


Version 2 - Huffyuv v2.1.1 :

Code: Select all
Video Steam :
File - L:\Intro Theme(Huffy).avi
Size - 528 MB (541,122 KB / 554,108,928 bytes)
Lenght - 0:36.670
Frames  - 1,099
Kbps - 119336
Pics/s - 29.970
Frames/s - 29.970
Resolution - 640 x 360
sar - 1.778 (16:9)
par - 1.000 (1:1)
dar - 1.778 (16:9)
Audio Steam :
Codec - PCM Audio
Stats - 48000Hz  1536 kb/s tot (2 chnls)


Version 3 - Lagaright Lossless Codec :

Code: Select all
Video Steam :
File - L:\Intro Theme(Lag).avi
Size - 237 MB (242,744 KB / 248,569,856 bytes)
Lenght - 0:36.670
Frames  - 1,099
Kbps - 52679
Pics/s - 29.970
Frames/s - 29.970
Resolution - 640 x 360
sar - 1.778 (16:9)
par - 1.000 (1:1)
dar - 1.778 (16:9)
Audio Steam :
Codec - PCM Audio
Stats - 48000Hz  1536 kb/s tot (2 chnls)


Version 4 - XviD 1.1.2 Final

Code: Select all
Video Steam :
File - L:\Intro Theme(XviD).avi
Size - 9.72 MB (9,958 KB / 10,196,992 bytes)
Lenght - 0:36.670
Frames  - 1,099
Kbps - 2397
Pics/s - 29.970
Frames/s - 29.970
Resolution - 640 x 360
sar - 1.778 (16:9)
par - 1.000 (1:1)
dar - 1.778 (16:9)
Audio Steam :
Codec - PCM Audio
Stats - 48000Hz  1536 kb/s tot (2 chnls)


My main system statistics :

Code: Select all
AMD Athlon 3200+
768 MB of RAM DDR
80 GB Internal Hitachi HDD + 160 GB Internal Hitachi HDD
Nvidia GeForce 6600GT


I guess that's enough of my pc.

Now,my problem is with playback of those video files - Version 1,2 and 4 plays perfectly,but Version 3 (Lagarith) - plays too slowly. Huffy,is higher kbps,and much bigger file (~2x),so I thought it would give me more problems than Lagarith. If anyone knows how to solve this,that is to make Lagarith play back normally,just as every other version,I would very appreciate that.
:D I like laughter ;DD
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asdf

Postby taifunbrowser » Fri Jul 13, 2007 2:11 pm

I was under the impression lagarith
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Postby Shazzy » Fri Jul 13, 2007 3:14 pm

Playback performance in Premiere Pro (my target application):

Raw: Plays realtime (barely — the data rate is 30MB/s)

HuffYUV: Plays realtime.

Lagarith: Plays slowly (non-realtime).

MUS: Crashed Premiere Pro :-( Played slowly (non-realtime) in VirtualDub.
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Postby Rapture** » Fri Jul 13, 2007 3:29 pm

So I guess there is no way out of this situation?.. :?
:D I like laughter ;DD
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Re: Lossless Stuff

Postby Shazzy » Fri Jul 13, 2007 3:39 pm

Rapture** wrote:if it's just my pc is too slow..


Yep..

For me, Lagarith tends to encode at about half the speed Huffyuv does. Additionally, the decode speed is slower than the encode speed; this is due to the nature of Arithmetic compression and the prediction algorithm.
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Postby Rapture** » Fri Jul 13, 2007 3:53 pm

Damn :|
:D I like laughter ;DD
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Postby ffxdean » Fri Jul 13, 2007 5:13 pm

whats is your Processors speed (in GHz or MHz).

I have a similar computer than yours (although alot worse: AMD 2400+ Athlon XP 2.0Ghz, 192MB RAM, GeForce4 64mb Integrated Graphics, 200GB Hard Drive 7200RPM

I tried using Lagarith and Huffman. I never had any playback issues.

unless you have background programs? for example having Adobe premiure along with windows media player playing 3GB of a 5min video will cause those symtoms you are having.
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Postby Zarxrax » Fri Jul 13, 2007 5:17 pm

Is it that your previews in premiere are slow? Just use a faster preview codec.
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Postby Rapture** » Fri Jul 13, 2007 5:22 pm

I'm using Vegas 5.0 >.>



My Processor speed is : AMD 3200+ (those 3200 are just for show,since system information says that my pc is only 2500 GHz) 7200 RPM
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Postby Rapture** » Fri Jul 13, 2007 5:24 pm

Damn that edit button,never there when I need it! :x

Anyway,it's not just in Vegas,playback is same even in VLC,MPC and Media Player itself.. :?
:D I like laughter ;DD
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Re: Lossless Stuff

Postby post-it » Sat Jul 14, 2007 5:46 pm

Rapture** wrote:
Code: Select all
AMD Athlon 3200+
768 MB of RAM DDR
80 GB Internal Hitachi HDD + 160 GB Internal Hitachi HDD
Nvidia GeForce 6600GT

Things have changed over that past few years, but ... why three sticks of 256meg ram?
.. the point may be mute but, when I build my systems from the ground-up Its A Moral Imperative for either two sticks of equal value and speed or four sticks of equal value and speed.
.. AMD loves paired matching memory sticks .. I've had very little problem with Lagarith on 2.4gig Intel, 2 X 256meg PC2700 RAM and a single 100gig Maxtor/SeaGate HD, 32meg on-board Video and on-board Audio.
( Compaq EVO-330 )
.. unbalanced RAM may have something to do with the troubles your having.

-- just my opinion 8-)
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Same Problem

Postby Kero777 » Thu Jul 19, 2007 6:10 pm

I asked almost this same question before on the forums and Krisqo kindly responded with this:

Krisqo wrote:Are you trying to playback the files in a media player? If that's the case, most of the time a CPU does not have enough juice to play them back in realtime. If they open fine in Virtual Dub Mod and in your editing program, you got nothing to worry about.


When I open my lagarith encoded files with Media player, it barely plays back the video (a frame here and there), but mostly just the audio. In Vegas they play much better, but I do have plenty of lag. Some of these work for me and I'm hoping they can help you too:

-In the Vegas program, go to Options>Preferences and then select the "Video" tab. You will see "Dynamic Ram Preview Device max [MB]." Click on it and make it larger.
-If you have the preview window set to "Best" switch it down to "Good" or even "Preview."
-De-fragment your computer.
-Highlighting a small area you just edited and looping it 3-5 times, while annoying, will gradually make a faster preview show up on the preview screen so you can see if you need to change anything.
-Keep rendering each part of your AMV to preview it along the way making sure not to use a lossless codec. Maybe try MPEG. (Of course you'd still use the lagarith for your final render, but for little snippets to preview you don't have to.)

Sometimes I still have an unbelievable amount of lag, but somehow still tolerate it. :sweat: Do many others seem to have this problem with lagarith? If so, I'm going to use Huffyuv from now on. People were always suggesting lagarith to me until recently. I'm ordering a new computer next week and I hope things run a lot more smoothly.

Anyway, best of luck, Rapture**! *Crosses her fingers for you* :D I really hope you don't have to make clips all over again before you start your AMV. If you can, try those things above and maybe it'll make the speed faster.
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