[FFmpeg-devel] [RFC] avcodec: Add native DCA decoder based on libdcadec.

Christophe Gisquet christophe.gisquet at gmail.com
Thu Jan 7 15:32:50 CET 2016


2016-01-05 21:38 GMT+01:00 foo86 <foobaz86 at gmail.com>:
> P.S. To avoid resending this huge patch, I've put the fixes accumulated
> so far in a private dcadec2 branch on github [1] (will be rebased
> frequently against FFmpeg master).
> [1]: https://github.com/foo86/FFmpeg/tree/dcadec2

One commit implements "sum/diff decoding", introducing sumdiff_X
functions, with X fixed or float.

I think those are the corresponding butterflies_X functions in the
AV(Float|Fixed)DSPContext structures. But I haven't verified the
alignment requirements.


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