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vp9_variance_c.c 41.64 KiB
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/*
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 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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 *
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 *  Use of this source code is governed by a BSD-style license
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 *  that can be found in the LICENSE file in the root of the source
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 *  tree. An additional intellectual property rights grant can be found
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 *  in the file PATENTS.  All contributing project authors may
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 *  be found in the AUTHORS file in the root of the source tree.
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 */
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#include "vp9/encoder/vp9_variance.h"
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#include "vp9/common/vp9_filter.h"
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#include "vp9/common/vp9_subpelvar.h"
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#include "vpx/vpx_integer.h"
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#include "vpx_ports/mem.h"
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unsigned int vp9_get_mb_ss_c(const int16_t *src_ptr) {
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  unsigned int i, sum = 0;
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  for (i = 0; i < 256; i++) {
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    sum += (src_ptr[i] * src_ptr[i]);
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  }
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  return sum;
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}
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unsigned int vp9_variance64x32_c(const uint8_t *src_ptr,
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                                 int  source_stride,
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                                 const uint8_t *ref_ptr,
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                                 int  recon_stride,
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                                 unsigned int *sse) {
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  unsigned int var;
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  int avg;
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  variance(src_ptr, source_stride, ref_ptr, recon_stride, 64, 32, &var, &avg);
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  *sse = var;
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  return (var - (((int64_t)avg * avg) >> 11));
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}
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unsigned int vp9_sub_pixel_variance64x32_c(const uint8_t *src_ptr,
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                                           int  src_pixels_per_line,
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                                           int  xoffset,
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                                           int  yoffset,
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                                           const uint8_t *dst_ptr,
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                                           int dst_pixels_per_line,
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                                           unsigned int *sse) {
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  uint16_t fdata3[65 * 64];  // Temp data bufffer used in filtering
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  uint8_t temp2[68 * 64];
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  const int16_t *hfilter, *vfilter;
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  hfilter = VP9_BILINEAR_FILTERS_2TAP(xoffset);
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  vfilter = VP9_BILINEAR_FILTERS_2TAP(yoffset);
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  var_filter_block2d_bil_first_pass(src_ptr, fdata3, src_pixels_per_line,
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                                    1, 33, 64, hfilter);
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  var_filter_block2d_bil_second_pass(fdata3, temp2, 64, 64, 32, 64, vfilter);
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  return vp9_variance64x32_c(temp2, 64, dst_ptr, dst_pixels_per_line, sse);
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}
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unsigned int vp9_sub_pixel_avg_variance64x32_c(const uint8_t *src_ptr,
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                                               int  src_pixels_per_line,
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                                               int  xoffset,
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                                               int  yoffset,
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                                               const uint8_t *dst_ptr,
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                                               int dst_pixels_per_line,
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                                               unsigned int *sse,
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                                               const uint8_t *second_pred) {
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  uint16_t fdata3[65 * 64];  // Temp data bufffer used in filtering
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uint8_t temp2[68 * 64]; DECLARE_ALIGNED_ARRAY(16, uint8_t, temp3, 64 * 64); // compound pred buffer const int16_t *hfilter, *vfilter; hfilter = VP9_BILINEAR_FILTERS_2TAP(xoffset); vfilter = VP9_BILINEAR_FILTERS_2TAP(yoffset); var_filter_block2d_bil_first_pass(src_ptr, fdata3, src_pixels_per_line, 1, 33, 64, hfilter); var_filter_block2d_bil_second_pass(fdata3, temp2, 64, 64, 32, 64, vfilter); comp_avg_pred(temp3, second_pred, 64, 32, temp2, 64); return vp9_variance64x32_c(temp3, 64, dst_ptr, dst_pixels_per_line, sse); } unsigned int vp9_variance32x64_c(const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int recon_stride, unsigned int *sse) { unsigned int var; int avg; variance(src_ptr, source_stride, ref_ptr, recon_stride, 32, 64, &var, &avg); *sse = var; return (var - (((int64_t)avg * avg) >> 11)); } unsigned int vp9_sub_pixel_variance32x64_c(const uint8_t *src_ptr, int src_pixels_per_line, int xoffset, int yoffset, const uint8_t *dst_ptr, int dst_pixels_per_line, unsigned int *sse) { uint16_t fdata3[65 * 64]; // Temp data bufffer used in filtering uint8_t temp2[68 * 64]; const int16_t *hfilter, *vfilter; hfilter = VP9_BILINEAR_FILTERS_2TAP(xoffset); vfilter = VP9_BILINEAR_FILTERS_2TAP(yoffset); var_filter_block2d_bil_first_pass(src_ptr, fdata3, src_pixels_per_line, 1, 65, 32, hfilter); var_filter_block2d_bil_second_pass(fdata3, temp2, 32, 32, 64, 32, vfilter); return vp9_variance32x64_c(temp2, 32, dst_ptr, dst_pixels_per_line, sse); } unsigned int vp9_sub_pixel_avg_variance32x64_c(const uint8_t *src_ptr, int src_pixels_per_line, int xoffset, int yoffset, const uint8_t *dst_ptr, int dst_pixels_per_line, unsigned int *sse, const uint8_t *second_pred) { uint16_t fdata3[65 * 64]; // Temp data bufffer used in filtering uint8_t temp2[68 * 64]; DECLARE_ALIGNED_ARRAY(16, uint8_t, temp3, 32 * 64); // compound pred buffer const int16_t *hfilter, *vfilter; hfilter = VP9_BILINEAR_FILTERS_2TAP(xoffset); vfilter = VP9_BILINEAR_FILTERS_2TAP(yoffset); var_filter_block2d_bil_first_pass(src_ptr, fdata3, src_pixels_per_line, 1, 65, 32, hfilter); var_filter_block2d_bil_second_pass(fdata3, temp2, 32, 32, 64, 32, vfilter); comp_avg_pred(temp3, second_pred, 32, 64, temp2, 32); return vp9_variance32x64_c(temp3, 32, dst_ptr, dst_pixels_per_line, sse); }
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unsigned int vp9_variance32x16_c(const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int recon_stride, unsigned int *sse) { unsigned int var; int avg; variance(src_ptr, source_stride, ref_ptr, recon_stride, 32, 16, &var, &avg); *sse = var; return (var - (((int64_t)avg * avg) >> 9)); } unsigned int vp9_sub_pixel_variance32x16_c(const uint8_t *src_ptr, int src_pixels_per_line, int xoffset, int yoffset, const uint8_t *dst_ptr, int dst_pixels_per_line, unsigned int *sse) { uint16_t fdata3[33 * 32]; // Temp data bufffer used in filtering uint8_t temp2[36 * 32]; const int16_t *hfilter, *vfilter; hfilter = VP9_BILINEAR_FILTERS_2TAP(xoffset); vfilter = VP9_BILINEAR_FILTERS_2TAP(yoffset); var_filter_block2d_bil_first_pass(src_ptr, fdata3, src_pixels_per_line, 1, 17, 32, hfilter); var_filter_block2d_bil_second_pass(fdata3, temp2, 32, 32, 16, 32, vfilter); return vp9_variance32x16_c(temp2, 32, dst_ptr, dst_pixels_per_line, sse); } unsigned int vp9_sub_pixel_avg_variance32x16_c(const uint8_t *src_ptr, int src_pixels_per_line, int xoffset, int yoffset, const uint8_t *dst_ptr, int dst_pixels_per_line, unsigned int *sse, const uint8_t *second_pred) { uint16_t fdata3[33 * 32]; // Temp data bufffer used in filtering uint8_t temp2[36 * 32]; DECLARE_ALIGNED_ARRAY(16, uint8_t, temp3, 32 * 16); // compound pred buffer const int16_t *hfilter, *vfilter; hfilter = VP9_BILINEAR_FILTERS_2TAP(xoffset); vfilter = VP9_BILINEAR_FILTERS_2TAP(yoffset); var_filter_block2d_bil_first_pass(src_ptr, fdata3, src_pixels_per_line, 1, 17, 32, hfilter); var_filter_block2d_bil_second_pass(fdata3, temp2, 32, 32, 16, 32, vfilter); comp_avg_pred(temp3, second_pred, 32, 16, temp2, 32); return vp9_variance32x16_c(temp3, 32, dst_ptr, dst_pixels_per_line, sse); } unsigned int vp9_variance16x32_c(const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int recon_stride, unsigned int *sse) { unsigned int var; int avg; variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 32, &var, &avg); *sse = var; return (var - (((int64_t)avg * avg) >> 9)); }
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unsigned int vp9_sub_pixel_variance16x32_c(const uint8_t *src_ptr, int src_pixels_per_line, int xoffset, int yoffset, const uint8_t *dst_ptr, int dst_pixels_per_line, unsigned int *sse) { uint16_t fdata3[33 * 32]; // Temp data bufffer used in filtering uint8_t temp2[36 * 32]; const int16_t *hfilter, *vfilter; hfilter = VP9_BILINEAR_FILTERS_2TAP(xoffset); vfilter = VP9_BILINEAR_FILTERS_2TAP(yoffset); var_filter_block2d_bil_first_pass(src_ptr, fdata3, src_pixels_per_line, 1, 33, 16, hfilter); var_filter_block2d_bil_second_pass(fdata3, temp2, 16, 16, 32, 16, vfilter); return vp9_variance16x32_c(temp2, 16, dst_ptr, dst_pixels_per_line, sse); } unsigned int vp9_sub_pixel_avg_variance16x32_c(const uint8_t *src_ptr, int src_pixels_per_line, int xoffset, int yoffset, const uint8_t *dst_ptr, int dst_pixels_per_line, unsigned int *sse, const uint8_t *second_pred) { uint16_t fdata3[33 * 32]; // Temp data bufffer used in filtering uint8_t temp2[36 * 32]; DECLARE_ALIGNED_ARRAY(16, uint8_t, temp3, 16 * 32); // compound pred buffer const int16_t *hfilter, *vfilter; hfilter = VP9_BILINEAR_FILTERS_2TAP(xoffset); vfilter = VP9_BILINEAR_FILTERS_2TAP(yoffset); var_filter_block2d_bil_first_pass(src_ptr, fdata3, src_pixels_per_line, 1, 33, 16, hfilter); var_filter_block2d_bil_second_pass(fdata3, temp2, 16, 16, 32, 16, vfilter); comp_avg_pred(temp3, second_pred, 16, 32, temp2, 16); return vp9_variance16x32_c(temp3, 16, dst_ptr, dst_pixels_per_line, sse); } unsigned int vp9_variance64x64_c(const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int recon_stride, unsigned int *sse) { unsigned int var; int avg; variance(src_ptr, source_stride, ref_ptr, recon_stride, 64, 64, &var, &avg); *sse = var; return (var - (((int64_t)avg * avg) >> 12)); } unsigned int vp9_variance32x32_c(const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int recon_stride, unsigned int *sse) { unsigned int var; int avg; variance(src_ptr, source_stride, ref_ptr, recon_stride, 32, 32, &var, &avg); *sse = var; return (var - (((int64_t)avg * avg) >> 10)); }
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unsigned int vp9_variance16x16_c(const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int recon_stride, unsigned int *sse) { unsigned int var; int avg; variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 16, &var, &avg); *sse = var; return (var - (((unsigned int)avg * avg) >> 8)); } unsigned int vp9_variance8x16_c(const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int recon_stride, unsigned int *sse) { unsigned int var; int avg; variance(src_ptr, source_stride, ref_ptr, recon_stride, 8, 16, &var, &avg); *sse = var; return (var - (((unsigned int)avg * avg) >> 7)); } unsigned int vp9_variance16x8_c(const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int recon_stride, unsigned int *sse) { unsigned int var; int avg; variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 8, &var, &avg); *sse = var; return (var - (((unsigned int)avg * avg) >> 7)); } void vp9_get_sse_sum_8x8_c(const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int ref_stride, unsigned int *sse, int *sum) { variance(src_ptr, source_stride, ref_ptr, ref_stride, 8, 8, sse, sum); } unsigned int vp9_variance8x8_c(const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int recon_stride, unsigned int *sse) { unsigned int var; int avg; variance(src_ptr, source_stride, ref_ptr, recon_stride, 8, 8, &var, &avg); *sse = var; return (var - (((unsigned int)avg * avg) >> 6)); } unsigned int vp9_variance8x4_c(const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int recon_stride, unsigned int *sse) { unsigned int var; int avg; variance(src_ptr, source_stride, ref_ptr, recon_stride, 8, 4, &var, &avg); *sse = var; return (var - (((unsigned int)avg * avg) >> 5));
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} unsigned int vp9_variance4x8_c(const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int recon_stride, unsigned int *sse) { unsigned int var; int avg; variance(src_ptr, source_stride, ref_ptr, recon_stride, 4, 8, &var, &avg); *sse = var; return (var - (((unsigned int)avg * avg) >> 5)); } unsigned int vp9_variance4x4_c(const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int recon_stride, unsigned int *sse) { unsigned int var; int avg; variance(src_ptr, source_stride, ref_ptr, recon_stride, 4, 4, &var, &avg); *sse = var; return (var - (((unsigned int)avg * avg) >> 4)); } unsigned int vp9_mse16x16_c(const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int recon_stride, unsigned int *sse) { unsigned int var; int avg; variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 16, &var, &avg); *sse = var; return var; } unsigned int vp9_mse16x8_c(const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int recon_stride, unsigned int *sse) { unsigned int var; int avg; variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 8, &var, &avg); *sse = var; return var; } unsigned int vp9_mse8x16_c(const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int recon_stride, unsigned int *sse) { unsigned int var; int avg; variance(src_ptr, source_stride, ref_ptr, recon_stride, 8, 16, &var, &avg); *sse = var; return var; } unsigned int vp9_mse8x8_c(const uint8_t *src_ptr, int source_stride,