[FFmpeg-cvslog] r12284 - trunk/libavcodec/ac3dec.c

[Justin Ruggles]

jbr wrote:
> Author: jbr
> Date: Sat Mar  1 05:39:39 2008
> New Revision: 12284
> 
> Log:
> Use 24-bit fixed-point transform coefficients until just before MDCT. This
> gives 7% faster decoding on average.

And obviously a fixed-point MDCT would be even better so we wouldn't
have to convert to float just for the MDCT then back to fixed for 16-bit
output.  Then we could also change the downmixing and dynamic range
scaling to fixed-point as well.

-Justin