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

[D Richard Felker III]

If I understand correctly, what you want is not a codec but a demuxer,
since it sounds like you're dealing with a new file format. Also, you
make it sound like the data in the file is uncompressed RGBA. If this
is the case, you definitely don't need a codec (aside from the
existing raw dummy codecs).

Rich

P.S. The quote in your sig shows a lot of ignorance on the part of the
person who said it... :)

On Fri, Dec 13, 2002 at 04:39:14PM +0000, Justin Davies wrote:
> 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
> 
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