need to eliminate bad frames during encode

[saggitarius]

Hey to anyone who can help

I am making a DVD compilation of some animated christmas movies, all but one are from DVDs that I own, the other is a VHS capture. I have already done the capture as a high quality MPEG2, but I need to eliminate a few frames where the tape 'burped' and I got a AUTO PICTURE message on the screen during playback.

My question is............

Can I eliminate these bad frames during the encode process? Or do I have to do it in seperate pieces and then join them all at the end. If the latter is the case, I would rather not do it that way. The AUTO PICTURE message flashes a few times during the playback and I would like to ONLY eliminate those frames, replacing them with a copy of the frame either before or after so it seems to flow properly.

Hope this post makes sense.

Saggitarius

[ZippyP.]

Can I eliminate these bad frames during the encode process?

Yes.

[saggitarius]

Great!


HOW?

[ZippyP.]

What's your encoding method?

[saggitarius]

I am using TMPGEnc Plus 2.54.

I captured with my WinFast PVR TV Tuner card (Leadtek) using Highest Quality MPEG2 settings.

[ZippyP.]

Using TMPGEnc select the "source range" and delete any unwanted footage.

[saggitarius]

Alrighty, let's try this again, shall we.......

The frames that I am trying to eliminate are midway through the movie. It appears that the tape is damaged slightly in this spot and the picture goes absolutely out for a split second. Anyone who has had a cassette get 'eaten' by their player will know what I am speaking of.

I would like to eliminate these frames and replace them with good frames, so that the audio go out of synch.

The method that you, Zippy, I believe are telling me would actually cut the movie into mulitple parts and then the gap(s) would most likely be much more noticeable. I do not want this.

If anyone knwos how this could be done, please advise

Adobe Premiere perhaps?

[SLK001]

Read up on AviSynth and its ability to edit video, then FRAMESERVE (also read up on that) the resulting script to TMPG. With this technique, you can easily delete bad frames and replace them with good frames (like the last good frame). This will help with audio syncing.

[saggitarius]

So, I can create a script for AviSynth that will do that? It will copy multiple frames and replace them with good ones so that the viewer won't realize there was a problem with the capture?

Cool.

Just want to make sure, but I need to do this to quite a few frames. The AUTO PICTURE message flashes on the screen a total of six times over a time period of about 2.5 seconds (more or less)

Will I need to tell AviSynth precisely which frames are the bad ones and which frames to replace them with?

Thanks for your help. I think I printed a guide to AviSynth scripting a while ago, I will have to dust it off.

[mikesbytes]

Or alternatively use Virtual dub. Select the range of frames to remove and hit delete.

[SLK001]

Yes, it will do all you require.

HINT: If you want to delete five consecutive frames and replace it by the on just before the "bad" frames, do this (assume frames 500 through 504 are bad frames and that frame 499 is the last good frame):

deleteframe(500)
deleteframe(500)
deleteframe(500)
deleteframe(500)
deleteframe(500)
duplicateframe(499)
duplicateframe(499)
duplicateframe(499)
duplicateframe(499)
duplicateframe(499)
duplicateframe(499)

This looks counter-intuitive, but when you delete a frame, the NEXT frame becomes the frame number of the one you just deleted.

[manono]

Or:

Loop(0,500,504)
Loop(5,499,499)