fast conversion from vob to h.264 codec

[johan1391]

Hello,
I was just wondering what would be the fastes and most effecient program to convert movies and series to h.264 from vob files. I have Nero Recode and Super i was wondering which program, is the fastest and i mean not just the ones i have already but any others out there that would be fast for converting to h.264 with good quality im open to commercial software or just freeware but i need some suggestions.

[johan1391]

i tried to convert a 1.6 gig vob file in SUPER using direct show and all i get is a 7kb file that plays a black screen for about 3 secs.

[rhegedus]

VirtualDub?

[johan1391]

ill try that, it doesnt open up vob files or mp4 files which im trying to convert to, im trying to get a h.246 codec in a mp4 container, i was just wondering why its taking 2 hours to compile 1 episode on nero recode on the nero digital avc profile. That is not even to convert the episode itself but to compile it so the fist pass only.

[celtic_druid]

Not sure which is faster out of x264 and Nero Digital (Ateme). Would depend on the settings anyway. With 16 ref frames, full trellis, etc. you can make x264 incredibly slow. Current Ateme encoder that ships with Nero is main profile only, so there isn't as many features available for slowing encoding down.

Maybe look into something like MeGUI?

I definatly wouldn't recommend VirtualDub since it uses VfW for encoding and avi as an output container.

[johan1391]

the problem with that is i have to convert it from a vob file, so this slow recoding speed is normal?, i set it to the hd quality setting on nero recode and the output filesize to about 450 mb per episode. im recoding the epidodes from the OC

[rhegedus]

ill try that, it doesnt open up vob files.

Try VirtualDubMod.

[killerhex]

i agree with celtic_druid try megui

[kschang]

AVC is a more CPU intensive codec than older stuff. I doubt you'll improve the encoding speed much until they introduce hardware compressors for AVC.

[deadrats]

Hello,
I was just wondering what would be the fastes and most effecient program to convert movies and series to h.264 from vob files. I have Nero Recode and Super i was wondering which program, is the fastest and i mean not just the ones i have already but any others out there that would be fast for converting to h.264 with good quality im open to commercial software or just freeware but i need some suggestions.

the simple fact of the matter is that it's not the software limiting the VOB to H.264 transcode, it's the hardware.

even a quad core G5 barely manages to transcode in real time from VOB to AVC, with full D1 resolution, even with software that is heavily Altivec optimized.

on the pc side, it takes something like a dual dual core xeon or opteron to encode in real time and depending on your settings, even that might not be possible.

encoding to VC-1 is just a tad better and forget about encoding anything to 720p or 1080i/p, even if you use mpeg-2.

in a nusthell, we just have to wait for either much faster cpu's or even better, for ATI to finally release it's trancoding utility that can use it's GPU to speed up encoding.

[johan1391]

so the fact of the matter is that this recoding can be done, but it takes time for the quality, thats what your saying right? so this taking hours for it is normal right?

[kschang]

Yes. Even hardware MPEG2 encoders can barely do real-time now, and we're not yet at HD.

[johan1391]

no,
my conversion is much slower than realtime, im doing vob to the PROFILE HDTV (something hd)- AVC and for the first pass alone for 6 episodes took like 5 hours, i dont think it should be that slow , but when i just did the conversion without the AVC it was much faster than that. it was more like 20 hours for 24 episodes for both passes which is not bad considering 24 episodes are 18 hours.

It could have nothing to do with dma as that is not the case, i am converting strait from my hd, i dont know what possibly could take so long, ill stop it do one episode and put eveything on normal and see how it goes.

[johan1391]

Here's a picture update, ill add the picture of it acually recoding next here are the few i have if you can tell anything by it.

if you click on the picture, the picture will be more clear.

[celtic_druid]

Is the current Nero encoder even multithreaded? I'd suggest that you try x264 to compare. It is free so you have nothing to lose, well other than time. Probably easiest would be MeGUI with Sharktooth's profiles.

[johan1391]

well i got it to go in realtime but the voices seam to be off.

[johan1391]

i have no concern about the speed, now just a few of the episodes voices are off