[mythtv-users] Firewire 6200 playback problem

[ian at duckland.org]

On Fri, 29 Apr 2005, Andy Alsup wrote:

> Ok, so I don't know if other are having the same problem I am, but I
> suspect it has something to do with the way myth changes channels and
> starts recording on firewire.
>
> A large number of my files (I said 30% above, but it might be more)
> are unplayable, and crash the backend when mythweb tries to load the
> png's.  and I had to turn off preview in the front end just so I could
> scroll through the listing without it locking up.
>
> I don't know the cause of the problem, but I have a temporary solution
> for myself until the problem is fixed.  The bad files seem to have
> extra data in the beginning of the file that causes the mplayer
> components to give up on the file.  I guess it is extra firewire stuff
> before the video actually starts.  Looks like packets of something,
> but I don't know what they are.
>
> So, my solution is a perl script that seeks through the bad files
> until a sequence of TS packets are found, then create a new copy of
> the file starting at that point.  This process has fixed the 2 dozen
> or so files I have tried -- which were completely unplayable
> otherwise.  On all of them so far, it has dropped around 50 K off the
> front of the file.
>

Why not write it in C, and submit a patch for playback?

 	-I