[mythtv-users] Live TV recording file size double size of DVBViewer on Windows 7?

David Crawford davidcrawford83 at gmail.com
Tue Mar 13 00:25:17 UTC 2012


On 13 March 2012 00:17, Michael T. Dean <mtdean at thirdcontact.com> wrote:

> On 03/12/2012 01:23 PM, Andy Sheen wrote:
> >
> > So, the first one you posted which is  arecording from MythTV is a
> > Transport Stream file that contains a single SD program split as:
> >
> > 0x0200 MPEG-2 Video for program 1
> > 0x0280 MPEG-2 Audio for program 1
> > 0x0240 Teletext/VBI for program 1
> > 0x0c08 ISO/IEC 13818-1 private_sections for program 1
> > 0x0c09 ISO/IEC 13818-1 private_sections for program 1
> > 0x0905 ISO/IEC 13818-1 private_sections for program 1
> > 0x0902 ISO/IEC 13818-1 private_sections for program 1
> > 0x0906 ISO/IEC 13818-1 private_sections for program 1
> > 0x0404 ISO/IEC 13818-1 private_sections for program 1
> > 0x1ffe MPEG-2 PCR for program 1
> > 0x0100 MPEG-2 PMT for program 1
> > 0x0000 MPEG-2 Program Assocation Table
> >
> > Video at 2.7Mbits/sec, audio at 200kbits/sec, teletext at 75kbits/sec.
> > The private sections (i.e. data associated with the service - I assume
> > some form of MHEG apps and associated data in PIDs 0x0404, 0x0c09,
> > 0x0c09, 0x0902->06) is 1.8Mbit/sec.
> >
> > The second file (the one you link to above) is a transport stream file
> > containing the following:
> >
> > 0x0200 MPEG-2 Video for program 4704
> > 0x0280 MPEG-2 Audio for program 4704
> > 0x0240 Teletext/VBI for program 4704
> > 0x1ffe MPEG-2 PCR for program 4704
> > 0x0000 MPEG-2 Program Assocation Table
> > 0x0100 MPEG-2 PMT for program 4704
> >
> > Video is at 2.47Mbit/sec, audio at 200kbits/sec, teletext at
> > 75kbits/sec and the others are systems tables that use nearly nothing.
> >
> > The reason you have bigger files from MythTV is that it's capturing
> > the associated data streams when compared to DVBViewer. Technically,
> > this is correct as they will be marked as belonging to the program in
> > the mux.
>
> Isn't there some setting that tells MythTV whether to record the data
> streams or not (for MHEG and such)?  Believe it or not, this is one time
> where I can't remember the setting.
>
> Mike
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>

If there is I havent seen it.
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