[MPlayer-dev-eng] HW for open standard video and audio formats (NO-SPAM)

[Luca Barbato]

Svante Signell wrote:

> 
> Further comments:
> - Which codecs/containers SW implementations are GPL licensed, and which are not. I'm only
> interested in GPL (and maybe LGPL) for a mixed HW/SW solution.

all named have at least a GPL compatible license implementation

> - Which codecs/containers are patent-free or openly available (no fees)?

none are patent free (do some research and got disappointed as I was)

all are openly available as in "comply with the license and hope that
nobody claiming to hold a patent show up"

> - What about NUT container format? Maybe the developers can give some
> input here.
> Can it be taken seriously?

It needs lots of PR work, beside that is quite in good shape.

> No software implementation exists yet, right?

Nope
you can find a demuxer based on the old draft in ffmpeg and mplayer g2,
should be quite simple update it but nobody has time to do it yet.

for the documentation mpcf.txt, any formal improvement (rfcxmlizing,
proofreading, asking question to clarify it) are welcome.

> -Comparisons wrt complexity, format overhead, ability for a mixed SW/HW
> solution etc.

I haven't the time to set up a testcase. The current nut is quite low on
overhead and quite easy to parse, the new one won't change those
results. Ogg problems come up when you need to use granulepos for sync
or you start thinking about muxing audio and video on it. mkv is a bit
hungry of resources and overdesigned but has lots of documentation.

> 
> Thanks,

lu

-- 

Luca Barbato

Gentoo/linux Developer		Gentoo/PPC Operational Manager
http://dev.gentoo.org/~lu_zero