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2009 Jun 13
1
Resampler saturation
...to be enough in resampler_basic_direct_single(), so we can saturate before storing. But in resampler_basic_interpolate_single(), we can also saturate in the cubic interpolation part. So I propose shifting the 32 bits accumulators 1 bit right before this operation. --> Implemented and tested in resample4.patch About the 4 accumulators: Simple DSPs have only 2 accumulators, so this is really not good on DSPs for 2 reasons: - this inserts extra load/store operations, cutting performance in half - we lose the accumulator register guard bits However, for resampler_basic_interpolate_single(), this is...