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

[Michael T. Dean]

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