What should be specs of PC

[cyberlion]

Hi,

What should be the specs of the PC to encode a movie.

Using VirtualDub - of just add subtitle using textsub in filter.

Please give min. spec.

And what things matter during ripping a movie in the above.

[Baldrick]

It will work fine with any computer. Faster computer = faster conversion.

[cyberlion]

Yeah But will 1 GB RAM and 8 thread CPU will handle this.

I tried on 1 GB RAM with other config and it totally sucks

[AlanHK]

Please give min. spec.

Pentium II 32 MB RAM

[cyberlion]

Well i want the movie to be ripped within 20 min. So how much min spec would i want for that.

Movie is 700 MB with burning of subtitle

[jagabo]

Well i want the movie to be ripped within 20 min.

From disc to final file? Ain't gonna happen.

[cyberlion]

No disc. I have an .avi file in my HDD. So VirtualSUB reencode the file from HDD.

[jagabo]

It depends on the length and frame size of the source, and the codec and settings you are using.

But since you mention a 700 MB file you are probably talking about Divx/Xvid AVI that's somewhere around 640x352 pixels, 23.976 fps, 90 minutes. On my quad core Q6600 with VirtualDub and TextSub that takes about 23 minutes for a Divx, "Balanced" mode, single pass quality based encode. Divx and Xvid aren't especially well multithreaded so throwing more than four cores at them won't help encoding speed much.

[lordsmurf]

"Ripping" is the process of extracting a/v content from a disc and putting it on a hard drive.
There is no other definition.

You're using the wrong words, so no idea what you're trying to accomplish here.

[cyberlion]

Though How much min RAM and CPU will it take for as mentioned by jagadoo

[redwudz]

Though How much min RAM and CPU will it take for as mentioned by jagadoo

Depends somewhat on your operating system. With Windows XP 32bit, 2GB is plenty. Vista or Windows 7, 4GB RAM is a better choice. A 64bit OS can use more, though 6GB is usually plenty.

For a CPU, a quad core will give you some benefits over a dual core. Xvid/Divx can use multiple cores fairly well to improve encoding speed. H.264 should be able to fully utilize them. A quad core CPU can also multitask better, so even if you don't use it exclusively for encoding, you can run multiple programs easier.

For encoding CPU speed, faster is better. A ~3Ghz CPU is a good choice.

MPEG encoding doesn't seem to benefit as much by using a multiple core CPU, but a faster CPU would still be better.

[cyberlion]

Ah Thanks! Well OS is either Windows server 2003 or Server 2008

[jagabo]

Though How much min RAM and CPU will it take for as mentioned by jagadoo

With XP 256 MB DRAM is sufficient for a small VirtualDub Divx conversion. But you won't be able to do much else.

I told you that a 2.4 GHz quad core Q6600 CPU couldn't reencode a typical 90 minute AVI in 20 minutes, even in single pass mode and at less than the max motion search precision settings. A 3 GHz Core 2 Duo would probably encode at about the same speed (with Divx/Xvid). It would probably take about a 2.67 GHz quad core to get down to 20 minutes. If you want to do a 2 pass VBR encode you'll need twice those clock speeds (ie, you can't do it because those CPUs don't exist yet). Using more than 4 cores will not improve Divx or Xvid encoding by any substantial amount. Even the difference between 2 cores and 4 cores isn't huge. That 23 minute encode took about 28 minutes using only two cores.

[cyberlion]

Dual Intel xeon 5650 2x12x2 or 8 threads Xeon CPU

Well i have this both as option But i dont understand both of what they mean.

Is 1 GB enough to encode. I want to encode as fast as i can. So How much is the real deal with RAMs

And also with VirtualDub and TextSub is the fastest way to encode movie or is there any other software better than that.

[jagabo]

Dual Intel xeon 5650 2x12x2 or 8 threads Xeon CPU

That's a huge waste of money for encoding with Xvid or Divx. The Xeon X5650 is a six core CPU with hyperthreading. That means each CPU can run 12 simultaneous threads. Two X5650's (two $1000 CPU, plus a $500 dual CPU motherboard) give you 24 simultaneous threads. Divx and Xvid don't scale much past 4 threads so throwing 24 at them won't improve encoding time. Unless you plan to run 6 encodes at the same time. A Core i7 875 (a $300 CPU plus a $100 motherboard) will probably beat the dual Xeon X5650 running a single Divx/Xvid encode.

Is 1 GB enough to encode. I want to encode as fast as i can. So How much is the real deal with RAMs

I already told you 256 MB is enough for a single <SD Divx/Xvid encode. Going to 1 GB, 4GB, or 32 GB will hardly make any difference. You will shave a few seconds off a 20 minute encode. But if you're going to spend big bucks on a dual Xeon X5650 system why would you skimp on memory?

And also with VirtualDub and TextSub is the fastest way to encode movie or is there any other software better than that.

AviSynth will be a little faster. But the encoding codec is going to be the biggest bottleneck.

[cyberlion]

No its VPS shared between 20 people - So i am spending on just renting it. All encoding. At 1 gbit connection.
24 GB RAM. I am still afraid of 1GB will be enough bcoz thats second option.

[jagabo]

With 20 people encoding simultaneously 1 GB will not be enough. And dual 5650's won't be enough to get you 20 minute encodes.

[cyberlion]

Hmm yeah the second option is dedicated though first is not -

Do you guys know good encoding server VPS/RDP dealer - I can buy from them.

[cyberlion]

ok this is last I have this two options right now-

Quad Core Q6600 RAM 4 GB DDR2 [Preferred] or i7 920 8 GB RAM DDR3[Not at all preferred 20% chance]

As mentioned Does VirtualDun Utilizes Max cores to encode movie with textsub.

I will be doing 3-4 movies at a time.

I want max usage.

[jagabo]

The Q6600 will not encode a single Divx file (like I described above) in 20 minutes, much less 3 or 4. A single conversion will take about 23 minutes. Running two at the same time will take maybe 40 minutes. Running four simultaneously will take about 80 minutes. I don't have any direct experience with the i7 but you're probably looking at times about 1/3 less than those for the Q6600.

[cyberlion]

ok its described above that it needs atleast 3.0 Ghz will be good. But Q6600 is 2.4 something and i7 is 2.6 something i can't overclock.

How much resources does 1 movie take. 2 Cores and 1 GB RAM.

[jagabo]

Here are some actual numbers for you from my Q6600 system with 4 GB of memory, Windows XP Pro, re-encoding a ~700MB Divx AVI (~90 minutes, 24 fps), using multiple instances of VirtualDub and Xvid (single pass, constant quality mode):

One instance of VirtualDub: 20 minutes, 63% CPU usage
Two instances of VirtualDub: 30 minutes, 98% CPU usage
Four instances of VirtualDub: 64 minutes, 100 % CPU usage

Using Divx 6.9.2 instead of Xvid:

One instance of VirtualDub: 13 minutes, 85% CPU usage
Two instances of VirtualDub: 130 minutes, 100% CPU usage
Four instances of VirtualDub: 260 minutes, 100 % CPU usage

Something is severely wrong with Divx's multitasking. A single instance of Divx encodes pretty quickly (the default settings of Divx are faster than the default settings of Xvid but deliver inferior compression). But when running more than one instance of Divx its performance deteriorates badly.

If you want to encode four videos at the same time with Xvid, and finish all four in under 20 minutes, you will need the equivalent of a 7.2+ GHz Q6600. With Divx you'll need a 31 GHz Q6600. Your expectations are unrealistic.

[cyberlion]

Wow - Thanks jagado

Well i cant get 7.2+

But its since 4x2.4 Ghz does it mean 9.6 Ghz :S

What does instances means.

I will do encoding only through xVid since its better choice for people.

Though i am also thinking of buying i7 core server instead. I cant do overclocking but

How much RAM is actaully used.

[jagabo]

But its since 4x2.4 Ghz does it mean 9.6 Ghz :S

No. You would need four cores running at 7+ GHz.

An instance is a copy of the program running in memory. Ie, four instances, means four VirtualDub's running simultaneously. Each instance of VirtualDub was using about 50 MB of RAM (as reported by Task Manager). If you use any filtering the memory footprint and encoding times will increase.

I noticed a problem with my Xvid settings so I'm running those tests again. I'll update the earlier post when I have the new numbers.

[cyberlion]

Thanks. Well What will i do with 8 GB RAM DDR3 i7 8 threads.

When Q6600 has 4 GB DDR2.

I will also re-encoding music simultaneously.

Only diff is Q is 2.4 and i7 is 2.66. And 4 Threads and 8 Threads.

Are threads taken into account

[jagabo]

Yes, thread are taken into account.

I don't have an i7 and it's difficult to predict its performance in this sort of scenario. My guess is you can cut ~1/3 off the encoding times of the Q6600.

[cyberlion]

Wow 33% is much - With all understanding i have made this thread check it out -

http://www.webhostingtalk.com/showthread.php?p=6882999#post6882999

Thanks jagado i have PM'ed you.