[MPlayer-dev-eng] New codec for cineon filmroll

[Justin Davies]

Hi there,

I am trying to implement a new video only codec for cineone film rolls. 
Forstly I am just trying to decode a single cineon file.  I hvae the
decoder that we use internally that will parse a cineon file and then
return a pointer to the RGBA data of the file.  I am using a skeleton
vd_*.c file and also have the entry in vd.c per the documentation about
new codecs.  My problem is, when I use mplayer on the file, it will not
load the codec and barfs, saying it does not support the file.  I am at
a loss as to what to put in my codecs.conf file as the cineon file does
not have a fourcc to identify it to a decoder.  The cineon format does
have a magic number that signifies its type, which is:

0x802a5fd7

How does mplayer actually know what decoder to use for what file.  I
assume it is not just based on a fourcc, and if not, how can I tell
mplayer to use a specific decoder for my filetype.

I am reallt sorry if this is me being dumb, but I cannot find anything
in the docs about moving forward on this.

Regards,

Justin
-- 
Justin Davies - Linux Administrator
Cinesite Europe Ltd.

If the designers of X-Windows built cars, there would be no fewer than
five steering wheels hidden about the cockpit, none of which followed
the same principles -- but you'd be able to shift gears with your car
stereo. Useful feature, that.

-- Marus J. Ranum, Digital Equipment Corporation