Repairing the timeline of an MPEG

[erik]

This is how to integrate into your postprocessing.bat
It can NOT be used in paralellprocesing.bat because the file MUST be completely written before.

When using retime it should be

Code:

move "%~dpn1.mpg" "%~dpn1_faulty.mpg"
retime "%~dpn1_faulty.mpg" "%~dpn1.mpg"
comskip %1
rectracker %1 > rectracker.log

or if you use mencoder

Code:

move "%~dpn1.mpg" "%~dpn1_faulty.mpg"
"c:\program files\mplayer\mencoder.exe" -of mpeg -ovc copy -oac copy "%~dpn1_faulty.mpg" -o "%~dpn1.mpg"
comskip %1
rectracker %1 > rectracker.log

I word of warning: I did NOT test so apriciate your feedback.

[erik]

The information is now also in the wiki
See http://gbpvr.com/pmwiki/pmwiki.php/Utility/ReTime

[reven]

just out of curiousity, would this fix the error dvdauthor has with most mpeg2 files recorded from a PVR card (currently im having to demux and then remux all mpeg2 files before burning, if this is quicker i would prefer to use this)

[erik]

In short : Yes

You can try which runs quickest.

[gexi]

erik, thanks for putting this on the wiki.

I've been trying to improve the WAF but its been taking a few steps back when the PVR150's incorrectly encoded files skip forward not backward when the instant replay button is pressed.

Hopefully this will take care of the problem.

[pens18aj]

or if you use mencoder

Code:

move "%~dpn1.mpg" "%~dpn1_faulty.mpg"
"c:\program files\mplayer\mencoder.exe" -of mpeg -ovc copy -oac copy "%~dpn1_faulty.mpg" -o "%~dpn1.mpg"
comskip %1
rectracker %1 > rectracker.log

will this still allow the recordings to show in the "ready" list for Xrecord or recordings or will it produce the same results as the rename utility where the file could not be seen unless you played it from Video Libary?

Thanks

[David]

will this still allow the recordings to show in the "ready" list for Xrecord or recordings or will it produce the same results as the rename utility where the file could not be seen unless you played it from Video Libary?

Thanks

The retimed file will end up with the exact same name as the original file, and should therefore be fine. If, for some reason, the utilities want to use the old file you can delete it. You will probably want to delete the old file anyway once you are confident the new file works as expected. Add the following line after the recoding line (before comskip will work):

del "%~dpn1_faulty.mpg"

[ggee]

This is how to integrate into your postprocessing.bat
It can NOT be used in paralellprocesing.bat because the file MUST be completely written before.

When using retime it should be

Code:

move "%~dpn1.mpg" "%~dpn1_faulty.mpg"
retime "%~dpn1_faulty.mpg" "%~dpn1.mpg"
comskip %1
rectracker %1 > rectracker.log

I word of warning: I did NOT test so apriciate your feedback.

Well, I tried it but something strange happened. I ended up with 3 mpg files. Not sure what really happened. As you can see, the one ending in -1.mpg seems to be the original.

Greg

[gexi]

This is how to integrate into your postprocessing.bat
It can NOT be used in paralellprocesing.bat because the file MUST be completely written before.

When using retime it should be

Code:

move "%~dpn1.mpg" "%~dpn1_faulty.mpg"
retime "%~dpn1_faulty.mpg" "%~dpn1.mpg"
comskip %1
rectracker %1 > rectracker.log

I found that I had to use:
call retime "%~dpn1_faulty.mpg" "%~dpn1.mpg"

or it would never come back from the retime batch file and comskip would never get called. Adding a
del "%~dpn1_faulty.mpg"
also worked great to remove the old one. Do others not have to use "call retime" in postprocessing.bat or should this be added to the wiki?

[David]

I found that I had to use:
call retime "%~dpn1_faulty.mpg" "%~dpn1.mpg"

or it would never come back from the retime batch file and comskip would never get called. Adding a
del "%~dpn1_faulty.mpg"
also worked great to remove the old one. Do others not have to use "call retime" in postprocessing.bat or should this be added to the wiki?

Retime is a batch file, so you would need to call it if you wanted to continue with commands in the calling batch file.