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3 Commits

Author SHA1 Message Date
Rémi Denis-Courmont
64ab577954 lavc/alacdsp: RISC-V V decorrelate_stereo 
To avoid data dependencies, this does the following unroll, which
requires one extra but probably free addition:

    coeff = (b * left_weight) >> decorr_shift;
    b += a;
    a -= coeff;
    b -= coeff;
    swap(a, b);
 2022-10-05 06:51:11 +02:00
James Almer
72254b19b8 x86/alacdsp: add simd optimized functions 
Signed-off-by: James Almer <jamrial@gmail.com>
 2015-10-06 20:22:00 -03:00
James Almer
b70566d6ca avcodec/alacdec: split off decorrelate_stereo and append_extra_bits as alacdsp 
Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>
 2015-10-04 14:10:05 -03:00