Problems converting xvid to mpeg

[rbmerc]

I am preparing an xvid video file to be put onto a DVD and when I used TMPGenc to encode it for 13 hours by the way, it came out as 7gb mpeg2 file! It is an hour and 21 minutes long and the mpeg2 file was 3 hours 50 minutes long? The file also had no audio which confused me... What did I do wrong?

-merc

[andyp1]

Something very wrong there I would say.

What is the audio of your Xvid ?

And are you trying to do anything special to it with filters or anything in TMPGenc ?

[ZippyP.]

I suspect your audio is VBR encoded MP3. Extract the audio to wav and use the wav as the audio source when you convert with TMPGEnc. You can use Virtualdub but I like to use Goldwave, just load the avi then save.

[rbmerc]

im not doing any filters just two pass vbr and thats it... the audio is in mpeg3 format on the xvid file..

-merc

[vmesquita287]

Hi,

You might want to try my tool DIKO:
http://kvcd.net/forum/viewforum.php?f=79

It's aimed exactly to DivX to DVD conversions.
What were the options you selected in tmpgenc regarding bitrate?

[mats.hogberg]

VBR encoded MP3

the audio is in mpeg3 format on the xvid

The operational word (acronym) here is VBR - TMPGEnc gets thrown off by VBR audio, and miscalculates the duration of the AVI. The trick here is to extract the audio (VirtualDub, Audio->Direct Stream Copy, File->Save wav, then convert the extracted mp3 track to WAV with some mp3towav decoder like CDEx. Then use this wav as audio source in TMPGEnc (And your XviD AVI as video source).

/Mats

[rbmerc]

alright i will do what mat said... any other things i should know before i do this? any special settings in tmpgenc?

-merc

[mats.hogberg]

No, just use one of the DVD templates (selecting PAL/NTSC according to frame rate of AVI).

/Mats

[catdaddio6]

wont vdub convert the mp3 to wave itself,,using full processing mode?

[andyp1]

Yes it will. Then you use that wav as the audio source in TMPGenc.

[catdaddio6]

ok i have a bad audio file i am messing with myself,,and i see no way to extract as mp3 or whatever like matt is talkin about,,with vdub,,i've tried direct stream and full processing and they both say save as wav..

[andyp1]

Yes with virtualdub there is only the option to save as wav.

If you get virtualdub mod you can select 'streams' it gives you the option to save as a wav or Demux. If you select Demux it will allow you just to seperate out the audio and save as mp3.

I have various versions of virtualdub on my pc bacause they have different jobs to do sometimes and where one won't do what you want want , normally one of the others will.

I have virtualdub , virtualdub mp3 freeze , vitualdub mod , and virtualdub Mpeg2 . And have needed to use different ones on different occasions.

[mats.hogberg]

i've tried direct stream and full processing and they both say save as wav..

Correct - this is a curiosity in VirtualDub. It says save wav even if the audio is in fact MP3 or AC3 or whatever even if you tell it to use direct stream copy. What it does is that it adds some WAV headers to the MP3/AC3, and give the file a .wav extension. In the case of MP3 that doesn't matter (just change the extension to .mp3), but AC3 has to be stripped of those headers with AC3fix before further processing.
Personally, I don't trust VirtualDub to process the audio (how can you trust a program that complains about having found VBR audio, stating that it will cause sync problems, to process the very same audio it says it can't handle correctly?) so I prefer to extract direct stream, and then convert/decode with software I do trust...

/Mats

[catdaddio6]

good points,,thanks

[catdaddio6]

oh yeah,i have vd mod but it doesnt have any audio options only video??

[andyp1]

1. Select streams
2 If more than 1 stream choose the one you want
3. Save as wav or demux

[Floydscruffy]

I think I found the same problem on a file. file gets recognized as an 1 hour 51 minutes long file by Gspot and media player but when you actually play it it seems to have additional 3 minutes of audio at the end. TMPGENC says it is a 3 hour 38 min long video (weird) playing a song. Virtual dub mod does the same thing it shows warning of VBR and actually desyncs the whole thing. I was wondering if I extract the audio separetly and run it through TMPGenc will it give me and outofsync file, I guess I could try, but having the audfio longer than the video makes me thingk I could have a nonworking and outofsync files.

If I go aboiut doing this how do I resync the files or do I have to cut the audio and make it same lenght of the video.

Or maybe I could leave this thing running through TMPGENC for 15 hours and then cut the whole 1 hour of black screen at the end

[eperez]

this topic helped me to solve a similar problem I had. i just have one more thing to add to this:
while sending the frameserver to tmpgenc using vdubmod 1.5.10.1, how do i tell the frameserver to "add" the srt subtitles i have, so tmpgenc gets the video+subs?

thanks,
erick

[MarkRaff]

Is it not also possible to use vd to extract the audio as WAV, then put this through something like BeSweet to convert it to ac3. Use tmpg just for the video, then join the 2 together again when authoring? As it is ac3 it will take less space, leaving move space for the video and giving better quality?

[teegee420]

Is it not also possible to use vd to extract the audio as WAV, then put this through something like BeSweet to convert it to ac3. Use tmpg just for the video, then join the 2 together again when authoring? As it is ac3 it will take less space, leaving move space for the video and giving better quality?

Sounds good to me. Open the avi in Virtualdub, go to the audio menu and select "full processing mode", then go to file and select "save wav".