flaskmpeg .6 divx 4.12 odd prob

[pallegro]

used 2-pass encoding on my DVD, Baraka, with normal settings and output was unbearably choppy and much bigger than expected (1.6 gb). the frame freezes every second or so (varying a little throughout), regardless of me having antifreeze on. I've changed a number of settings and converted the first vob a few times now with no change.
Has anyone ever encountered this before? I hope I'm not missing something because it's so simple

p.s. I now recall that I first used divx 3 low-motion, with the same problem. And I've played the vob files and they're fine.

Perplexed

[khp]

Sounds like your audio settings are screwd.

What audio settings are u using ?

Just to check, try disabling audio and encode just the video.

[pallegro]

ty

How did you know?

I was using audio settings I'd never tried before ... unprocessed PCM audio (192 kb/s). I decoded just the video and it worked fine. It's better this way, since I've recently heard of a way to extract the dolby digital (this movie is just 192kb/s stereo, but still dolby digital) ... and then I just hope virtual dub doesn't give me problems.

I do wish the efforts going into all of the various software were more coordinated. Like adding more features to Flask. I tried out some other all-in-one programs (e.g. easydivx), but you sacrifice a lot for allowing "an 8-year-old to back up DVDs". Flask is pretty good, I guess I just wish I could keep the dolby digital with it.

Thanks again,
Perplexed at how you knew my problem,
but happily moving on

[khp]

Re: ty

Originally posted by pallegro
How did you know?

I have special magical powers

Seriously, PCM audio is uncompressed which means that a 16 bit stereo stream will use 48000*2*2 = 192KBytes per second or almost 700 MB an hour, which explain your size problems.

If you want to mux the AC3 stream into the avi file you should use nandub.

Or better yet try gordianknot for encoding. Which will let u use the AC3 stream or reencode to mp3 with lame.

http://gknot.doom9.org/

[pallegro]

ty

I really wish programmers would capitalize the 'b' when they mean byte!

Thanks for the tips ... I got Gordian Knot et al and it's superb.

Just one more thing. I was fiddling around with DVD2AVI because I thought I'd screwed the ac3 (turns out I just had to get some filters). While I was encoding, 'film type' changed from NTSC to FILM and the percentage started increasing, and eventually surpassed 95% at which point one is recommended to select 'forced film'. And I recalled my confusion before when Flask said 'FPS: NTSC 29.9..', 'Detected FPS: FILM 23.9..'.

My curiosity is not so great that I would worry about this, except some of the choppiness remains (albeit much improved). So do you know what forced film is all about?

Somewhat less perplexed

[khp]

Re: ty

Originally posted by pallegro
...Just one more thing. I was fiddling around with DVD2AVI because I thought I'd screwed the ac3 (turns out I just had to get some filters). While I was encoding, 'film type' changed from NTSC to FILM and the percentage started increasing, and eventually surpassed 95% at which point one is recommended to select 'forced film'. And I recalled my confusion before when Flask said 'FPS: NTSC 29.9..', 'Detected FPS: FILM 23.9..'.

Sorry I don't have a lot of experience with NTSC and Film encoded DVD's.

I think this page gives a resonable explanation

http://www.inwards.com/~dbb/interlace_myths.html

[Enchanter]

That's an interesting article and I happen to need it a lot. Know how I can perform IVTC properly using Nandub?

[khp]

Originally posted by Enchanter
...Know how I can perform IVTC properly using Nandub?

As I said my experience with NTSC is very limited.

But it is my understanding that the best way to do IVTC is to use avisynth for frameserving into vdub/nandub.
You can read all about how this is done in the avisynth forum at www.doom9.org