[FFmpeg-devel] Query about adding support for a new codec in FFMPEG player

Ajit Deshpande ajitsdeshpande
Wed Dec 30 05:10:32 CET 2009

   Thanks for the reply.

 If u can, pls. give me some detailed pointers where i can know about 1.)In
what form the patch has to be submitted (dll, static library, executable)
2.) Does the code have any guidelines which should be followed related to
memory allocations,about other coding constructs, coding guidelines, etc..

 I am not talking about DPK but as i wrote, the ISO reference software:
 ISO/IEC 29199-5 JPEG XR reference software


Samuel Goldwyn<http://www.brainyquote.com/quotes/authors/s/samuel_goldwyn.html>
- "I don't think anyone should write their autobiography until after
they're dead."

On Tue, Dec 29, 2009 at 11:50 PM, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:

> Ajit Deshpande <ajitsdeshpande <at> gmail.com> writes:
> > What is the process to add support for this codec in the FFMPEG player?
> First, please learn how to spell the project's name;-)

> You send a patch, it gets reviewed, you make the requested changes, and
> after a
> few iterations, your patch gets submitted.

> > Does this codec have to be implemented from scratch to avoid patent
> issues
> > or can the reference software which the standard body(ISO) provide can be
> > used  either as it is or with some changes" ?
> This is not a question about patent issues, but about copyright.
> Your submitted code should be released under LGPL, GPL or MIT license.
> If "reference software" means "HD Photo Device Porting Kit", note that its
> license explicitly forbids using the code in open source projects like
> FFmpeg.
> http://en.wikipedia.org/wiki/JPEG_XR#Licensing
> (and the link to microsoft.com there)
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