[mythtv-users] Extracting QAM streams outside of Myth

[Preston Crow]

On Wed, 2006-06-14 at 13:59 -0600, Brian Wood wrote:
> On Jun 14, 2006, at 1:36 PM, Preston Crow wrote:
> 
> > On Wed, 2006-06-14 at 13:22 -0600, Greg Woods wrote:
> >> On Wed, 2006-06-14 at 14:44 -0400, Preston Crow wrote:
> >>
> >>> Not all of the streams are watchable channels.  I still want to  
> >>> extract
> >>> them to find out what they are.
> >>
> >> I found the qamscan.sh script recently posted here to be useful for
> >> this. It finds tunable channels and makes a channels.conf file  
> >> that can
> >> be used by azap. You still have to go through the channels one by one
> >> afterward to identify them, but at least it narrows down the  
> >> streams to
> >> those that are tunable channels.
> >>
> >> http://www.tux.org/~peterw/#qamscan
> >
> > I'm trying to get the opposite of that.  I can get the watchable
> > streams.  I want to look at the data in the unwatchable streams.
> >
> 
> azap and the like will find all the streams,not just the watchable  
> ones. If you find that a strem is not watchable video couldn't you  
> just save it to a file and look at it with various tools (hex editor,  
> or try to interpret it as an image etc.).

Right, that's my question.  How do I do that?  I can tune with azap, and
see the streams with dvbtraffic.  How do I extract one of those streams
and save it in a file?