Justin Ruggles ac05f9030e Convert floating-point MDCT coefficients to 24-bit fixed-point all at once ...

instead of doing it separately in 2 different functions.
This makes float AC-3 encoding approx. 3-7% faster overall.
Also, the coefficient conversion can now be easily SIMD-optimized.

Originally committed as revision 26232 to svn://svn.ffmpeg.org/ffmpeg/trunk

2011-01-05 20:35:36 +00:00

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