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Henrik Gramner authored
The QP offsets of each macroblock are stored as floats internally and converted to big-endian Q8.8 fixed point numbers when written to the 2-pass stats file, and converted back to floats when read from the stats file. Add SSSE3 and AVX2 implementations for conversions in both directions. About 8x faster than C on Haswell.
c82c7374