[mythtv] MythTV Recording System Future
pyroman at ninjapanda.org
Sun Jul 20 13:35:58 EDT 2003
On Sun, 2003-07-20 at 01:40, Isaac Richards wrote:
> On Saturday 19 July 2003 11:24 pm, Mike Javorski wrote:
> > I just used these as examples of streams and "codecs" that could be
> > supported. Basically what exists currently would "become" the mtvs
> > plug-in. It would support the same options it does now, but in addition
> > there would be a plug-in to store a plain MPG program file (MPG from the
> > PVR's now seems to be wrapped in a mythtv-nuv file) or a cross-platform
> > supported stream file (like omf or avi). How do you see it as losing
> > flexibility by making this a plug-in architecture? How are you losing
> > "native recordings"?
> Data from the pvr cards is plain mpeg. It's not wrapped in anything. For
> some reason, people get confused by the fact that I name it .nuv. =)
> I would be losing the flexibility that having my own file format gives by
> having to support other random formats. Not all formats are equal, they
> can't all support the same things.
So can the hardware MPEG cards do everything the MythTV native NUV
format can? I seem to remember some limitations when using the MPEG
container. Why not allow people to use other codecs if they can already
use the MPEG files with the limitations? One file format having
limitations doesn't stop you from supporting the features of another
file format, it simply means if the user wants to use a certain
codec/container that they won't have feature X. Or would that be too
> > Thats nice, but it doesn't truly solve the problem I have which is that
> > NOTHING supports the MythTV proprietary .nuv file perfectly, or without
> > having to patch and recompile the program. I also cannot use it in
> > Windows where I have to burn my DVD's. That is why I think it would be
> > useful. For people who want a truly portable stream file format. If you
> > are using mythtv strictly as a PVR, then the mythtv nuv file is fine.
> > Having to convert the MythTV nuv file to another format and only then
> > being able to work with it is a great hassle.
> All it needs to be supported natively in windows is for someone to write a,
> what is it now, DMO? DirectShow filter?, for it. I can't imagine it being
> very difficult -- this isn't a very complicated video format here.
Yeah, but for each program you patch to support the nuv format, you have
to have someone maintain that code. Look at the mplayer patch, for a
while it wouldn't read all of the NUV files because a new version was
released, and there was nobody out there who could fix it immediately.
Whereas if MythTV could write to standard formats, either through
conversion or directly, then no code would have to be maintained other
than the main MythTV code, which is always up to date.
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