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Diffstat (limited to 'media/libaom/src/examples/encoder_util.c')
| -rw-r--r-- | media/libaom/src/examples/encoder_util.c | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/media/libaom/src/examples/encoder_util.c b/media/libaom/src/examples/encoder_util.c new file mode 100644 index 000000000..e43b37250 --- /dev/null +++ b/media/libaom/src/examples/encoder_util.c @@ -0,0 +1,136 @@ +/* + * Copyright (c) 2017, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ + +// Utility functions used by encoder binaries. + +#include "examples/encoder_util.h" + +#include <assert.h> +#include <string.h> + +#include "aom/aom_integer.h" + +#define mmin(a, b) ((a) < (b) ? (a) : (b)) + +static void find_mismatch_plane(const aom_image_t *const img1, + const aom_image_t *const img2, int plane, + int use_highbitdepth, int loc[4]) { + const unsigned char *const p1 = img1->planes[plane]; + const int p1_stride = img1->stride[plane] >> use_highbitdepth; + const unsigned char *const p2 = img2->planes[plane]; + const int p2_stride = img2->stride[plane] >> use_highbitdepth; + const uint32_t bsize = 64; + const int is_y_plane = (plane == AOM_PLANE_Y); + const uint32_t bsizex = is_y_plane ? bsize : bsize >> img1->x_chroma_shift; + const uint32_t bsizey = is_y_plane ? bsize : bsize >> img1->y_chroma_shift; + const uint32_t c_w = + is_y_plane ? img1->d_w + : (img1->d_w + img1->x_chroma_shift) >> img1->x_chroma_shift; + const uint32_t c_h = + is_y_plane ? img1->d_h + : (img1->d_h + img1->y_chroma_shift) >> img1->y_chroma_shift; + assert(img1->d_w == img2->d_w && img1->d_h == img2->d_h); + assert(img1->x_chroma_shift == img2->x_chroma_shift && + img1->y_chroma_shift == img2->y_chroma_shift); + loc[0] = loc[1] = loc[2] = loc[3] = -1; + if (img1->monochrome && img2->monochrome && plane) return; + int match = 1; + uint32_t i, j; + for (i = 0; match && i < c_h; i += bsizey) { + for (j = 0; match && j < c_w; j += bsizex) { + const int si = + is_y_plane ? mmin(i + bsizey, c_h) - i : mmin(i + bsizey, c_h - i); + const int sj = + is_y_plane ? mmin(j + bsizex, c_w) - j : mmin(j + bsizex, c_w - j); + int k, l; + for (k = 0; match && k < si; ++k) { + for (l = 0; match && l < sj; ++l) { + const int row = i + k; + const int col = j + l; + const int offset1 = row * p1_stride + col; + const int offset2 = row * p2_stride + col; + const int val1 = use_highbitdepth + ? p1[2 * offset1] | (p1[2 * offset1 + 1] << 8) + : p1[offset1]; + const int val2 = use_highbitdepth + ? p2[2 * offset2] | (p2[2 * offset2 + 1] << 8) + : p2[offset2]; + if (val1 != val2) { + loc[0] = row; + loc[1] = col; + loc[2] = val1; + loc[3] = val2; + match = 0; + break; + } + } + } + } + } +} + +static void find_mismatch_helper(const aom_image_t *const img1, + const aom_image_t *const img2, + int use_highbitdepth, int yloc[4], int uloc[4], + int vloc[4]) { + find_mismatch_plane(img1, img2, AOM_PLANE_Y, use_highbitdepth, yloc); + find_mismatch_plane(img1, img2, AOM_PLANE_U, use_highbitdepth, uloc); + find_mismatch_plane(img1, img2, AOM_PLANE_V, use_highbitdepth, vloc); +} + +void aom_find_mismatch_high(const aom_image_t *const img1, + const aom_image_t *const img2, int yloc[4], + int uloc[4], int vloc[4]) { + find_mismatch_helper(img1, img2, 1, yloc, uloc, vloc); +} + +void aom_find_mismatch(const aom_image_t *const img1, + const aom_image_t *const img2, int yloc[4], int uloc[4], + int vloc[4]) { + find_mismatch_helper(img1, img2, 0, yloc, uloc, vloc); +} + +int aom_compare_img(const aom_image_t *const img1, + const aom_image_t *const img2) { + assert(img1->cp == img2->cp); + assert(img1->tc == img2->tc); + assert(img1->mc == img2->mc); + assert(img1->monochrome == img2->monochrome); + + int num_planes = img1->monochrome ? 1 : 3; + + uint32_t l_w = img1->d_w; + uint32_t c_w = (img1->d_w + img1->x_chroma_shift) >> img1->x_chroma_shift; + const uint32_t c_h = + (img1->d_h + img1->y_chroma_shift) >> img1->y_chroma_shift; + int match = 1; + + match &= (img1->fmt == img2->fmt); + match &= (img1->d_w == img2->d_w); + match &= (img1->d_h == img2->d_h); + if (img1->fmt & AOM_IMG_FMT_HIGHBITDEPTH) { + l_w *= 2; + c_w *= 2; + } + + for (int plane = 0; plane < num_planes; ++plane) { + uint32_t height = plane ? c_h : img1->d_h; + uint32_t width = plane ? c_w : l_w; + + for (uint32_t i = 0; i < height; ++i) { + match &= + (memcmp(img1->planes[plane] + i * img1->stride[plane], + img2->planes[plane] + i * img2->stride[plane], width) == 0); + } + } + + return match; +} |