[FFmpeg-devel] [PATCH] Add a G.722 encoder

Martin Storsjö martin
Fri Sep 10 15:24:00 CEST 2010


As in $subj, the first patch adds a straightforward encoder that produces 
bitexact output matching the reference test vectors. The second patch adds 
trellis support to the encoder, closely modelled after the code in 

I'm only doing trellis on the lower sub-band, since the higher only is 
encoded with 2 bits. And if I'd want to do trellis for both of them at the 
same time, I'd have to run the QMF on the output from both subbands in 
order to get one decoded sample values, in order to have one difference 
instead of two to compare.

// Martin
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