repairing bad frames in xvid movies

[Rufi0]

i got a couple of xvid movies with bad frames in them

i'd like to repair and not remove the bad frames, or my subs won't work (i speak dutch, i need the subs)

i tried:
Vdub => won't work cause the sound is VBR encoded
Nandub => opens the file but cannot mask bad frames (or maybe i got an older version)
avi defreeze => generates huge file sizes
vdub-mp3-freeze => i can detect bad frames with this but not repair them
divx anti-freeze filter => it's xvid

someone pls help! tnx

[The Edge]

Use VirtualdubMod instead. When opening the file say "No" to re-writing the header. Then mask the frames and resave avi.

Also, could you have a look here for me

http://forum.digital-digest.com/showthread.php?s=&threadid=25113

Edge

[Rufi0]

tnx

[ShuMO]

one way I've just stumbled on

This is a convoluted way but I've had exciting results. (I've had some xvid bad frames myself and my Premiere chokes on xvid).

Track down a tool from Microsloth called Graphedit. Its free in the SDK, but I truthfully can't recall where I originally got it. I used to use it for stripping Wav audio off of streams btw. Works sweet.

Save your audio stream seperately to wav. (or whatever you like...)
Cut up your avi stream so that you have a starting keyframe in your chunk thats got the bad frames in it. I suggest you have disabled the audio stream so that your working with video chunks only. (Identify the bad frames using the scan routine of Vdubmod).
Start Graphedit and use the 'Render Media File" - selecting your bad video chunk.
Delete the Block called 'Video Renderer" by selecting it and pressing the delete key.
Under Graph- select Insert Filter. Select the AVI MUX filter found under the Directshow filters.
Insert a filter called "file Writer" also found under the directshow filters. It will prompt you for a file name for output. Choose something unique.
Drag from the 'connectors' to draw an arrow of direction from block to block. I can't diagram it here but experiment till you get the idea. Remember, output to input.
Click the green arrow icon to pump the output. Be patient, as the red 'stop' icon becomes available and you'll notice a small graphic line under the toolbar icons. 12k frames took 6 mins on my p4_1.8Ghz as I wrote this.

Now depending on your ffdshow settings ( I think... shoot me if I'm wrong) your output file should now have an error free stream. This does NOT put the data stream all back together, you still may have frames with unviewable data, but the frame itself is no longer corrupt.

At this point you can re-join your avi chunks, then weave the audio back in.

Good luck!
Shu

[mikeylikess99]

avi-mask the frames

Use VirtualdubMod instead. When opening the file say "No" to re-writing the header. Then mask the frames and resave avi.

Also, could you have a look here for me

http://forum.digital-digest.com/showthread.php?s=&threadid=25113

Edge

how do you mask the frames with vdm. i dont see that process. thanx in advance

[LT. Columbo]

under "video" you have to "scan video stream for errors" first, then you will have the option.

[mikeylikess99]

vdm-scanning

under "video" you have to "scan video stream for errors" first, then you will have the option.

hi there thanx for the quick response. i did that and it got about 4 min into movie then vdm gave me an out of memory erort..?what can i do with this, thanx in advance...

[LT. Columbo]

4 min into vdubs process? or 4min into the playback of the file it created.

[mikeylikess99]

vdm

4 min into vdubs process? or 4min into the playback of the file it created.

sorry. it gave me that memory error in the 4th min of the movie while it was scanning it...im wondering does it have anything to do with the vbr message it gets at the beginning, when i open the file.. is there a way to put a screen image of the file posted on to here. i see others doin it but unaware of how to. maybe i can get a how to on that, then i can post the info here. perhaps its a different problem issue with the file.thanx in advance

[LT. Columbo]

no it has nothing to do with the VBR audio, just say no to the header.

it seems as if the file can't even be rendered by virtualdubmod. sounds like it might be in pretty bad shape.

one thing you can try use "divfix" (freeware) see if it can repair it...otherwise if it was me i'd toss the thing.

[mikeylikess99]

thanx

thanks much for info. what about changin the vbr to pcm, would this make a difference?

[LT. Columbo]

i can't say for sure, but i doubt it . if it's something you really want by all means play with it... you'd best try divfix first.