Hi!

A Anopheles wrote:
> Hi guys
> 
> Another problem with '->|' and '|<-'         .....   :-(
> 
> dvbcut can save mpgs in one of 4 formats. 
> Let me refer to these as A.B.C.D
> A = DVD (DVBCUT multiplexer)
> B = MPEG program stream (DVBCUT multiplexer)
> C = MPEG program stream/DVD (libavformat)
> D = MPEG transport stream (libavformat)
> 
> dvbcut can load any of the above formats for further editing.
> It also loads my NUV files from mythtv (program stream of some sort).
> 
> Previously I have been having problems with playaudio after opening 
> a NUV file when the current position is close to end of file. 
> Michael has provided a fix for that. (Thanks again)

De nada.

> Now I have found reason to save files in format C, and have discovered
> that when using dvbcut to re-edit them, the playaudio does not work again.
> This is due to 'sh.fileposition > stopreadpos', and is regardless of  
> current edit position - i.e. it happens anywhere in the middle of the file, 
> not just at the ends.

Sven and I discovered earlier that files written with libavformat have
broken timestamps - which may cause this phenomenon. Therefore, format C
and D are deprecated (and I never used them again since Sven added his
own muxer).

I'm currently using format B because it plays on my DVD player even if I
burn the plain MPEG file to a data DVD. Format A also sort of works that
way, but has drop-outs (I guess my player can't handle the empty VOBU
packets - because that's the only difference between the formats).

The VOBUs may also be the reason why your format A DVDs come out without
sound: They're just dummies that the authoring software needs to fill in
(but probably doesn't because it thinks that the files come from a
regular DVD and contain correct VOBU data). When there are no VOBUs, the
software remuxes the file to insert them (and obviously also enters the
correct values).

Michael.

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