bad frames?

[asdf]

i downloaded a divx movie, at a part in the movie green blocks scatter the screen for about a sec and after that audio is out of sync. however if i skip ahead by clicking on the bar in wmp, the audio and video goes back in sync. i converted the movie to mpg and the green mess is there, but clicking ahead does nothing. i guess this is because of bad frames?? i tried searching for info but the search is temporalily disabled

[clthom2]

You can use Virtualdub to try to fix the bad frame. You must use VirtualDub 1.4.10 or later. Open Virtual dub. Then choose open file. Then a box will appear to let you pick the file. Check box near the bottom left saying "Popup extended open options". There will be an option to fix the avi.

OR

Also what I've done in the past is cut the divx avi into 2 avi using VirtualDub. The first avi will be before the bad frame and the 2nd is after the bad frame. Last I put the 2 avi back together using Virtualdub.

[asdf]

ok. how do i do that?

[clthom2]

Which option?

[asdf]

whoa i didnt even realize the 1st one. i guess the 2nd one if the 1st doesnt work

[asdf]

...and the 1st one too. what do i choose in the import options?

[clthom2]

I'll go with the second option since its what works best for me.
Open VirtualDub, then open the divx file. Next go to video menu and click "Direct processing". Next go to the audio menu and click "Direct processing". At the bottom right of Virtual dub you'll see 2 arrows. one pointing left and the other pointing right. Click the one pointing left(start). Then go to the Edit menu and click on "go to...". A box will come up with two choices. One is to enter a frame and the other is to enter a time. Make sure the first radio button is checked. Next enter the bad frame minus 2. For example if the bad frame is 22032 then enter 22030. This will take you to the desired frame in virtual dub. Next click the right arrow at the bottom near the right(end). Last click File and "save avi". This will cut the first segment.

Second, do the direct processing for audio and video. Then go to the Edit menu and click on "go to...". Enter the bad frame plus 2. Then click the left arrow. Then slide the lever all the way to the end. Next click the right arrow. Last click File and "save avi". This will cut the second segment.

Last, open the first cut avi. Then go to the file menu and click "append avi segment..". Then select the second segment. Then do the direct processing for audio and video. Last got o file and "Save as avi"

Whew that was long. Hope it helps.

[asdf]

what exactly is a "bad frame?" i dont think thats what my problem actually is since the pink and green blocks go over 24 frames. i dont want to cut the movie and leave those 24 frames out.

here are a couple of pics of what it looks like
http://www.geocities.com/metallismack123/pic1.bmp
http://www.geocities.com/metallismack123/pic2.bmp

you have to "save target as" i think

[Dutch Coder]

Are you sure its a Divx? And not a Xvid? Load the Avi in " Gspot " (see tool section) to check the codec/ framerate. For the bad frames...... many guides have been written, take a loot at 'm.
D.C. 8)

[asdf]

in virtualdub>file information it says the decompressor is DivX Pro 5.0.2 Codec

[Dutch Coder]

Ok...not a Xvid. Look here about frame- editing:
https://www.videohelp.com/forum/userguides/142555.php
You can use for Divx as well for Xvid. If Vdub Mp3 keeps crashing while scanning for bad frames; use DivFix ( see tool- section ).

D.C. 8)

[asdf]

ok thanks. 1 last question - is the only way to fix bad frames is to cut it out?

[Dutch Coder]

Always check your Avi's , and yes, if you've bad frames, edit & delete 'm. You'll get used to it. Sometimes the avi is so bad, Vdub mp3 will crash due to it. If so... then use Divfix to restructure it. Tell me if you problems using Divfix, maybe i can help.
D.C. 8)

[Sooner02]

Always check your Avi's , and yes, if you've bad frames, edit & delete 'm. You'll get used to it. Sometimes the avi is so bad, Vdub mp3 will crash due to it. If so... then use Divfix to restructure it. Tell me if you problems using Divfix, maybe i can help.
D.C. 8)

I have a corrupt xvid, which has about 3 bad frames according to vdub. When I try playing the file in windows media player it crashes it. I tried to run it through Divfix (rebuild index) and it crashes roughly in the same area when I play it in windows media player again. Before I tried Divfix I was following the guide on here that said to scan in Vdub mp3 freeze and scan for video freezes. It also crashed that program, so I couldn't go through with the guide. Is there any other way to repair this file?

[ZippyP.]

It also crashed that program, so I couldn't go through with the guide. Is there any other way to repair this file?

If you know where the crash occurs then you need to cut out that part of the avi using Virtualdub. Use the Edit > Go To command to jump just before the bad frames, mark that point as the start, Edit > Go To to jump just after, mark that as the end, Edit > Delete Selection. Do that as many times as necessary then set audio and video to Direct Stream Copy and Save Avi. Look up Vdud in the Edit section (over there <-<-) for better directions.

BTW, you're better off starting your own thread so that people don't have to plow through a bunch of old posts to help you out.

[Sooner02]

If you know where the crash occurs then you need to cut out that part of the avi using Virtualdub. Use the Edit > Go To command to jump just before the bad frames, mark that point as the start, Edit > Go To to jump just after, mark that as the end, Edit > Delete Selection. Do that as many times as necessary then set audio and video to Direct Stream Copy and Save Avi. Look up Vdud in the Edit section (over there <-<-) for better directions.

How about this: I ran the avi through Divfix again and checked the box "Cut out bad parts." There were 7 errors found with Divfix, and after it rebuilt the file, the corrupted frames were gone. It's barely noticable, but at least the video/audio stay in sync.

BTW, you're better off starting your own thread so that people don't have to plow through a bunch of old posts to help you out.

Well I had the same problem, and the thread bumps up when it's replied to.

[ZippyP.]

How about this: I ran the avi through Divfix again and checked the box "Cut out bad parts." There were 7 errors found with Divfix, and after it rebuilt the file, the corrupted frames were gone. It's barely noticable, but at least the video/audio stay in sync.

I could never get divfix to work, glad it worked for you!

[Cobra281]

You can use Virtualdub to try to fix the bad frame. You must use VirtualDub 1.4.10 or later.

vdub doesnt open up .wmv\asf files... what program does?