Repairing MPEG1 and/or MPEG2 streams

[shevegen]

Hi
i have some damaged mpegs which i wanna try to repair

Whats a good way to repair them?

[tuco]

you can use mencoder I think to repair the mpegs. I think you can use this syntax mencoder -idx filename -of mpeg -oac copy -ovc copy -o outputfilename. The documentation says that it works for avi but doesn't say anything for mpeg but since they don't keep their documentation updated, you can give that a try.

[spyder]

MPEG doesn't have an index so using mencoder like that will likely not work. What kind of problems are you having with the mpeg files?

[tuco]

Originally posted by spyder
MPEG doesn't have an index so using mencoder like that will likely not work. What kind of problems are you having with the mpeg files?

Yup you are right. I tried it out the other day, and it did nothing. I too found out that some of my mpegs are damaged. Totem doesn't have a problem reading them but mplayer hangs. I think transcode can repair but don't qoute me. I need to read up their documentation some more.

[shevegen]

Silly me cant remember what was the real problem.
I can only remember that some of the MPEGs didnt play properly, and mplayer was putting out some error message. Well, next time I will look more closely. :)

Now, all the mpg files seem to work.

I have some mpegs on a sony vaio (of my dad, running windows xp), which i dragged to another folder - and suddenly neither media player classic nor anyone else could play them (they were recorded using giga TV).

It tells there is no index to play them - but they dont have an index or?
I am thoroughly confused. THe data must still be there, its some files, like 4-8 gigs in size, and i wanted to compress them into an avi (xvid) to a size of about 1 gig. Now it cant be played back. I think I was trying to load them into TMPGenc on that windows machine but that also resulted in an error.

Another question though, what if i want to merge MPEGs?
I guess with MPEG2 it is not so easy because of license fees but how about MPEG1 files - merging and cutting them?

[shevegen]

I found one of those damaged MPGs.

"Linux RTC init error in ioctl (rtc_irqp_set 1024): argument not valid
Exiting... (End of file)"