VirtualDub Programs - What are Settings for Checking Errors

[allanc448]

Are there any settings for VirtualDub, Mod and MP3 Freeze when you want to check for errors?
Or, do you just open the AVI and click on 'check video for freezes' or 'scan video stream for errors'?

Thank you in advance.

[monzie]

Dont fall into the 'trap' of thinking that any avi 'checker' will find and fix your errors..they dont.

[jimmalenko]

AFAIK there aren't any settings you can set and yes, you just open your file and go to edit > scan for errors or something like that. One method simply outputs a list of frame-numbers that contain errors, and the idea is that you then need to cut these frames out altogether.

Take a look here:
https://www.videohelp.com/edit#5;22

and here:
https://www.videohelp.com/tools?s=12#12

for more information.

[allanc448]

Dont fall into the 'trap' of thinking that any avi 'checker' will find and fix your errors..they dont.

Are you suggesting that they are 100% a waste of time or that they only 'find' some errors?
No sarcasm in my typing

[allanc448]

AFAIK there aren't any settings you can set and yes, you just open your file and go to edit > scan for errors or something like that.

That is what I thought.
Being a newbie - I was confirming for my sanity.

[monzie]

No, there not a waste of time..but manually going through the file with Virtualdub will find errors that 'scan for errors' will not find (they are mostly AUDIO and not VIDEO errors that the scan seraches for)......and its just as quick....keep hitting the keyframe buton...if VD crashes then you have a problem..work in both directions..and make a note of the frame it crashes in (if any).

Why are you asking this question anyway..it quite rare..do you have a problem with some footage?

[allanc448]

No, there not a waste of time..but manually going through the file with Virtualdub will find errors that 'scan for errors' will not find (they are mostly AUDIO and not VIDEO errors that the scan seraches for)......and its just as quick....keep hitting the keyframe buton...if VD crashes then you have a problem..work in both directions..and make a note of the frame it crashes in (if any).

Why are you asking this question anyway..it quite rare..do you have a problem with some footage?

The Reader's Digest version of the story is that not too long ago I was a total newbie - no I am only a semi-newbie.
I had a number of things working against me when I tried to convert my first AVI to DVD format:
1. The source was PAL and one of the DVD players on which I needed to play the DVD does not play that format.
2. I was trying to use an 'all-in-one'.
3. I was getting audio sync problems.
4. I was getting macroblocks.

Virtual Dub and its derivitives were found in a number of threads that I read when I was researching solutions.
I also do not mind spending some time * up front * before converting the AVI instead of having problems pop up while I am watching the DVD.
So now I am at the point where I am using specialized tools for each step of the process.

I have a couple of questions (if I may).
Will the keyframe button find Video * and * Audio problems?
Are there any special settings for use with the keyframe button?
If not, which tool should I be using for the audio (assuming that I want to find problems before watching the resultant DVD?
Lastly, should I be using VirtualDub, Mod or Freeze in my testing?

Thank you for much!

[45tripp]

monzie wrote:
No, there not a waste of time..but manually going through the file with Virtualdub will find errors that 'scan for errors' will not find (they are mostly AUDIO and not VIDEO errors that the scan seraches for)......and its just as quick....keep hitting the keyframe buton...if VD crashes then you have a problem..work in both directions..and make a note of the frame it crashes in (if any).


Just tried it.
Hardly as fast and quite laborious
So once you find a crash I assume you mask a range about that frame.
How do you calculate the range of frames?
Or does one mask just that single keyframe?

[reboot]

Mask from one frame before, to one frame after the closest crashed keyframe.
I usually use virtualdub-mp3-freeze to check for bad frames. It scans the whole avi, and outputs a text file containing all bad frames.
Mask or delete the bad ones, and resave.
Caution! You may end up with a horrible video.

[allanc448]

monzie wrote:
No, there not a waste of time..but manually going through the file with Virtualdub will find errors that 'scan for errors' will not find (they are mostly AUDIO and not VIDEO errors that the scan seraches for)......and its just as quick....keep hitting the keyframe buton...if VD crashes then you have a problem..work in both directions..and make a note of the frame it crashes in (if any).


Just tried it.
Hardly as fast and quite laborious
So once you find a crash I assume you mask a range about that frame.
How do you calculate the range of frames?
Or does one mask just that single keyframe?

Can't you hold down the SHIFT/LEFT ARROW?
I tried it and takes no time at all to fly thru the AVI.
Would this method find the bad frames?