Add SIMD code for PVQ search
This reduces the runtime profile of pvq_search_rdo_double from 37% to 15% and improves overall encoding speed when PVQ is enabled by ~40%. The SIMD code is not bit accurate with the C version and introduces a slight PSNR regression on AWCY: PSNR | PSNR Cb | PSNR Cr | PSNR HVS | SSIM | MS SSIM | CIEDE 2000 0.0607 | 0.1044 | N/A | 0.0126 | N/A | -0.0309 | N/A Change-Id: Ie22cebc62df2e72618305f2268668d79167860c6
av1/common/x86/pvq_sse4.c
0 → 100644
av1/common/x86/pvq_sse4.h
0 → 100644
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