What To Do When Virtual Dub/Virtual Dub Mod Fails?

[moviebuff2]

Hi everyone:

I am trying to resize an AVI file, using VirtualDub then VirtualDubMod. Both programs crashed at one particular point with error message:

"An out-of-bounds memory access (access violation) occured in module "DivX"..."

What am I to do to correct this? I have been using VirtualDub and VirtualDubMod to resize many larger files without any problems.

Thanks

[guns1inger]

When you loaded the file, did you get a warning about VBR MP3 audio and asking if you wanted to rewrite the header ? If so, did you answer yes or no ?

[moviebuff2]

Hi guns1inger:

I clicked "no" as instructed (if I remember correctly) in the guide here.

[guns1inger]

I have found that any time I click No with virtualdubmod and VBR MP3, it crashes very soon after. Admittedly I am ususally on my way to DVD, rather than avi output, but I always say yes when working with video, and convert the audio to something else.

I know some here say that vdubmod will handle VBR audio, that has never been my experience

[moviebuff2]

I am planning to use AutoGK to make a fresh AVI from my current AVI.

I am not sure if AutoGK supports Windows98 :P . I went to their website's tutorial page and searched for everything with the word "windows" and found nothing related to supported operating systems.

Does anyone know whether or not AutoGK will work in Windows 98SE?

[moviebuff2]

Hi guns1inger:

Thanks for sharing your experience.

I had never had that problem. With all my previous AVIs, when I loaded them in VirtualDub or VirtualDubMod, I always got that warning about VBR. I always clicked "no" and it never crashed.

[manono]

Hi-

I know some here say that vdubmod will handle VBR audio, that has never been my experience

Yep, I say it. However, I don't reencode AVI to AVI. Why would I want to, when I've created it the way I wanted in the first place? One easy solution would be to remove the audio from the AVI before reencoding, and then mux it in again afterwards. Another would be to do it right by serving up an AviSynth script with the audio disabled. My guess is that he just opened the AVI in VDubMod and used Full Processing for the resize. Not such a good way to go about it.

I'm not convinced the problem is audio related.

[moviebuff2]

Hi

Thanks for all of your inputs. The problem was fixed.

It's the audio part that caused VirtualDubMod to crash.

After reading guns1inger's comments, I decided to try VirtualDubMod again. For the video, I used: full compression, DivX 5.21, and resize filter to add the bottom black band where I will add my subtitle later. For audio, I simply disabled it. Finitos los problemos! I got a new video file (no sound) with top and bottom black bands.

Next, I am created an audio file (streams, stream list, save wav) from this same AVI file.

Now I am putting all 3 files together: the new video file, the wave file and the subtitle file. So far no problems.

Cheers

[manono]

I didn't really understand what you did with the black bars. You created them both above (why?) and below the video, thus necessitating reencoding and degrading the video even further? Is the plan now to encode yet again, this time adding in the subs? And maybe reencoding the audio again? Say it ain't so!

I may have guessed wrong, but let me respectfully suggest muxing in the original audio when all done, and if you're really planning on burning in the subs, that you do that the same time that you create the black bars.

[moviebuff2]

Hi manono:

As I said, I resize the video, adding the black bars because I want to show the subtitle in one of them (the bottom one). Subtiitles shown that way are: 1) bigger and easier to read, therefore my senior relatives and I can spend more time enjoy watching the video since we don't need to spend time to figure out what the words really are; 2) less intrusive since they don't cover any part of the video; 3) white subtitles against black are 100% better for our eyes than against any other colors.

I did try to add subtitles at the same time I resized the video. It did not work. I simply could not place the subtitles in the bottom black bar while I was adding that very bar.

Adding the top black bar will keep the video right in the middle of TV/monitor screen. Besides that, I don't think I have any choice. I think the resize filter in VirtualDubMod will simply divide the difference in size between the original video and the resized video into 2 equal parts: one for the top bar, one for the bottom bar.

[manono]

Hi-

You can crop away the top black bar, or as much as of it as you want to get rid of, by adding in the null transform filter, after doing the resize and adding the black bars originally, along with the subs. Once that null transform filter is added as the last one in the line, cropping becomes possible.

I don't know why you can't add the subs at the same time. Well, you said you could, but couldn't get them in the right position. Make sure you do the resize and adding of the black bars first, before adding in the subs, and then they should go right into the black.I don't know in what format you have the subs. If in IDX/SUB format, you can raise or lower them in VobSub Configure. If in SRT format, I convert to SSA format, where they can then also be easily raised or lowered, as well as choosing font, color, size, etc.

Although I'd never do it this way myself (it's easier, better, faster to do it through AviSynth), I tried to do it the way you might. I opened the AVI in VDubMod, added the Resize filter where I added the black bars to top and bottom. I added the VobSub filter and added my IDX/SUB format subs. I then added the Null Transform filter, clicked on the Crop button and removed the top black bar.

[DarrellS]

Any time you add a filter, you have to recode.

[moviebuff2]

Make sure you do the resize and adding of the black bars first, before adding in the subs, and then they should go right into the black.

(manono)

Any time you add a filter, you have to recode.

(Darrells)

Hi manono & Darrells:

I think I finally figured out what you meant.

When I open the "filters" window, for each added filter, I have to click "OK" to close the "filters' window. Then I can reopen the "filters" window to add another filter.

I used to add multiple filters without closing the "filters" window. I think that's why I could not place the subtitles in the bottom black band even though I added the "resize" filter before the "text sub" filter.

Everything is working now.

Thanks for all your helps.