search for damaged frames

[Charlatat]

Anyone know of a filter or way to do a "search and destroy" on individual damaged frames? Thanks

[geocapital]

I think Virtual Dub has one option.

Video--> Scan for error something. I have ran it, but I never had bad frames, so I don't know what it does when it finds them or if it finds them successfully.

[Charlatat]

I've done that... I have Divx 3.11 encoded avis, and I try to do the scan for bad frames (Virtual dub 1.4.10), the damaged frames aren't detected.

[Didée]

Vdub´s "scan video stream for error" indeed can only detect *errors* in the video stream ...
So if you downloaded a video, which was broken at any time, and someone fixed it again with a tool, then the stream is technically OK again, though there still is destroyed image data.
No chance to auto-detect such things ... you have to search and edit manually.

And making the rips on your own prevents you from such hassle ...

[manono]

Hi-

It sounds to me like he's talking about "shit" frames-those with big blocks and ugly smears. And Didee's right-you'll have to track them down yourself. He's also right in saying that if you learned how to make good rips yourself, you wouldn't have to put up with someone else's bad rip.

[Charlatat]

Yes, I do all my own ripping. And no, the avis I'm editing are not rips. They are mpeg captured video which I've encoded into Divx 3.11a avis. At certain points, the video feed would fuzz out, and thus the frame shows a (D) at the bottom of the VirtualDub screen. Yes, I have been manually going thru the videos and deleting the frames, but it gets tedious. I just thought this would be a common complaint, and thus someone would have figured a way to search thru the frames, look for the (D)amaged ones, and delete them (or write a new file with the damaged frames excluded). Thanks for the snide comments though....

[Tri]

If these frames are frozen, you can detect them with a special version of vdub (vdub-mp3-freeze). It will write the bad frames to a log file.

[manono]

Hi-

I guess I owe you an apology then Charlatat. Sorry man.

[Didée]

Well, if Vdub shows a (D) on those frames, there is hope.

Apart from Vdub showing (D) on dropped frames, not on (D)amaged ones (or is that different for divX3? It is so for XviD and Huffyuv) - you can search those (D)´s with the key "}".
That´s not automated, yes - but you can find and delete/mask those frames pretty quick this way.
I´m cleaning my captures in little time this way!
(Though in my case, the (D)ropped frames in fact are junk frames - inserted to wait for my too slow audio card - and I´m still waiting for the delivery of my ordered Santa Cruz ;) )