[mythtv-users] GOPchop and split_mpeg

[Johannes Becker]

I have used mpgtx to split large .nuv files (from PVR x50)successfully. 

Johannes


On Mon, 7 Mar 2005 06:51:50 -0500 (EST), Cory Papenfuss
<papenfuss at juneau.me.vt.edu> wrote:
> On Sun, 6 Mar 2005, Chris Birkinshaw wrote:
> 
> >
> > I am trying to split a 6GB nuv file  recorded with my DVB card into chunks
> > small enough to fit onto DVD, however am not having any luck. I tried
> > "dvb-split_mpg filename.nuv 1000", but it just returned the usage
> > information:
> >
> > "usage: split_mpg <filename> <size>"
> >
> > Which is what I typed!
> >
> > I then tried to use GOPchop, but when loading a nuv file recorded with my DVB
> > card into Gopchop 1.13 I get the following errors:
> >
> > parse_MPEG2_program_stream @ 0(0.00%): expecting pack_start_code, got 0x00
> > 0x00 0x01 0xE0
> > parse_MPEG2_program_stream @ 102400(0.01%): garbage data seen from 0 to
> > 102400.
> > parse_MPEG2_program_stream @ 102400(0.01%): More than 100K of garbage --
> > aborting parse.
> > parse_MPEG2_program_stream @ 102400(0.01%): expecting MPEG_program_end_code
> > marker (length 4)
> > No Groups of Pictures found!
> > Loaded /home/shared/mythtv/1009_20050303093000_20050303102000.nuv in 0
> > seconds (1MB/s)
> >
>         I've looked through these tools a bit, and from what I recall,
> split_mpg produces broken results.  Also, I've found GOPchop to be a bit
> broken, and apparently dead, but 'gopdit' seems to have replaced it as a
> useful barebones util.
> 
>         Is it possible you have a Transport Stream (TS) rather than a
> Program Stream (PS)?  I don't know anything about DVB captures, but I know
> a lot of MPEG utils won't deal with TS's.  Maybe 'replex' or 'dvb-mplex'
> will demux it to a PS if that's the case.  You may even be able to remove
> some streams you don't want from the capture to reduce the size.
> 
> -Cory
> 
> 
> *************************************************************************
> * Cory Papenfuss                                                        *
> * Electrical Engineering candidate Ph.D. graduate student               *
> * Virginia Polytechnic Institute and State University                   *
> *************************************************************************
> 
> 
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