AVI extraction problem

[svcdprayer]

Hello! I am having problem,

Lastest version and 1 version of dvd2svcd before that has avi audio extraction problem for me, for example movie is long 91 mins and avi2svcd extract only 9 mins of audio.

Anyone have had similar problem and the solution how to solve it.

However it dosent work for me on versions 1.2.2b1, 1.2.1bx
But it does work audio extraction without any problem for me on 1.1.3 b2,
So i need to use for avi2svcd version 1.1.3 b2

Any comments are greatly appreciated.

Thanks!

[Nick]

OK first things first.
The new build (1.2.2B1) offers choice of two routines for extracting audio - internal routines and VfW. Have you tried with both?

Secondly, have you looked at the "AVI2SVCD fails at some point..." sticky? If you have not yet tried the trick with VirtualDub, give it a go. Note that if your AVI has AC3 or VBR MP3 audio, you will be better to use VDubMod instead of VirtualDub.

If you've tried both these suggestions and still it fails, please post your BeSweet log.

Hope this lot helps
Nick

[svcdprayer]

Yes ive tried both internal routines and vfw, the both have the same problem. Its not even div/xvid format its captured from the tv.

I will try Virtual Dub, but ill doubt it will help :)

I will keep u posted.

Thnx alot

[Nick]

If it doesn't work after running through vdub, try using vdub to demux the file. If you get the full audio stream, rename it to the exact same filename as the Extracted_audio file in your DVD2SVCD movie output folder. Then move the new file to your output folder overwriting the old one and crash-recover D2S from audio conversion.

That should do it

Cheers :)

Nick

[svcdprayer]

Hey Nicky!

Well virtual dub done the thing. with direct stream processing as well as audio stream processing. :)
However do u know maybe why on 1.1.3 b2 i can do avi2svcd without the problem extraction(the same file) is okay without using virtual dub, while i tried on 1.2.2 b1 i have to do virtual dub direct stream and then works?

Thnx!

p.s. It would be easier for me to use 1.1.3b2 and faster, than using virtual dub to do stream processing :)But it works anyhow!
:)


Thanks alot

[Nick]

I don't know.
To the best of my knowledge, until this new build which offers VfW extraction, it is an absolute age since the audio extraction routines were last reworked.

Why it should work with 113B2 is a mystery beyond fathom :confused:

However, for now you might want to use an older build anyway as a reworking of the AVI resizing routines has introduced some problems which will be fixed for the next release.

Glad to be of assistance (but a minor slap on the hands for not reading the stickies in the first place :) )

Cheers
Nick

[svcdprayer]

Hey Nicky!

Slaps on the hands are accepted :)

Just a quick question: Should i report this as a bug(i mean the audio extraction problem)? Or leave it as it is?

What would be your suggestion?

Thanks for being so helpful once again!

[Nick]

I wouldn't at the minute. If it's just this one file that's giving problems then it's no big issue. If this thread gets a few responses from those with similar problems I'll draw the author's attention to it.

Cheers
Nick

[svcdprayer]

Well I do have problems with every avi file i capture from the tv wich is bigger than 9 min on 1.2.2b1 and on 1.2.1 on every file wich is bigger than 6 mins :)

Also I saw that someone also posted bug on authors bugtracker on his site regarding audio extraction but for 1.2.1 version. But no reply as of yet.I assume the author is very busy atm.

Its worth to wait, hes doing very good work on improving this very good software. I would say the best :)


Thnx Nicky!

[DDogg]

I recently ran into a DV file, which for some reason that I cannot figure out, caused D2S, Link2 and VFAPI to all fail on audio extraction. This was really making me crazy. Even if I used VDub to direct-stream copy it would still fail. In fact, even if I extracted the audio with VDub (no problem) and then remuxed the extracted audio with the video I STILL had problems. I was about to give it up, but then tried:

1> Set up VDub for frameserving using auxsetup in VDub directory.
Opened problem AVI in VDub and started a frameserving process (file menu) using directstream on video and audio (although you could filter Vid and change audio rates in VDub if you wanted to).

2> Used Link2 (donation ware) or VFAPI converter (find in DVD2SVCD directory) to 'wrap' the VDR signpost from the VDub frameserver (make sure and use raw audio option in Link2 or 'export audio' in VFAPI.

3> Avi2xxx process as normal. Open the 'fake' AVI created by Link2 or VFAPI in A2x like it was a normal AVI file. Worked like a charm.

As mentioned, you could also do changes to Vid and Audio in VDub if you wanted to do so.

What I am saying is that VDub frameserving is the ultimate answer for those worse case avi's that will not encode correctly when opened directly by A2x. If VDub can play 'em, then it can serve 'em properly to A2x via Link2 or VFAPI. Nothing can stop you now :)

[svcdprayer]

Nice comment about audio extraction DDog :) Thnx, I would suggest u to put it on q/a sticky :)It wont help me,at this moment but im sure someone else would help :)

Really nice discovery. However my avi problem as i figured today is about dv capturing codecs problem.

Im using scenealyzer to capture from tv using pinnacle codec, with pinnacle capture card. And i discovered that uncompressed avi once loaded in avi2svcd audio extraction wont work correctly (on 1.2.2b1 and 1.2.1bx but works on 1.1.3 b2). Also if i would use canopus codec and capture, audio extraction works better than pinnacle but still not good enough.

However if i convert the captured(uncompressed of course) file into divx/xvid audio extraction it works without a problem. So i guess not many ppls who are doing avi2svcd from divx/xvid would find this problem.

I sent a msg to famous author, i would like to send him a DVD (i cant upload since i do have slow internet connection)

We will see the response, if he would allow me to do so.

I appreciate ur reply on my thread.

Thnx once again.

[DDogg]

If you are doing capturing then VDub is normally used to remove commercials and such. I do not understand your fixation on D2S having a problem with your buggy (most probably) pinnacle codec when all you have to do is load the cap into VDub and serve to A2x. I thought you were looking for a solution to your problem. When you serve, the audio is straight PCM and the codec no longer matters.

You could just try using the VFAPI converter in your DVD2SVCD directory to directly wrap the AVI into a fake AVI. In fact, I would ask you to try that and let me know if VFAPI has trouble extracting ALL the audio.

[svcdprayer]

Using vdub +vfapi it seems that at first vfapi extracted all audio correctly, but then after svcd creation finished, when i start muxed file, it shows that remaining 5 seconds of the movie is cutted off (video and audio i mean), while compared to captured avi it has 12:05 and after vdub+vfapi finished file has 12:00.

So something isnt right.

[svcdprayer]

Hello!
DDOG:
I just wanted to let you know that your tip about frameserving vdub + link2 (only registered version) works perfectly, however with vfapi it dosent work. and link2 demo dosent work either.

However i do not know why on link2 demo version didnt work when i guess only limitation is 2 frames sec. Maybe you have a clue ?

[DDogg]

... however with vfapi it dosent work You would need to provide further details. Would vfapi load the vdr and process it, or did it fail to deliver the audio properly?

[svcdprayer]

Originally posted by svcdprayer
Using vdub +vfapi it seems that at first vfapi extracted all audio correctly, but then after svcd creation finished, when i start muxed file, it shows that remaining 5 seconds of the movie is cutted off (video and audio i mean), while compared to captured avi it has 12:05 and after vdub+vfapi finished file has 12:00.

So something isnt right.

In quote you have all the details, while with link2 only registered version everything works correctly.