1 /*****************************************************************************
2 * pixel.c: pixel metrics
3 *****************************************************************************
4 * Copyright (C) 2004-2011 x264 project
6 * Authors: Loren Merritt <lorenm@u.washington.edu>
7 * Fiona Glaser <fiona@x264.com>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
23 * This program is also available under a commercial proprietary license.
24 * For more information, contact us at licensing@x264.com.
25 *****************************************************************************/
30 // SSD assumes all args aligned
31 // other cmp functions assume first arg aligned
32 typedef int (*x264_pixel_cmp_t) ( pixel *, int, pixel *, int );
33 typedef void (*x264_pixel_cmp_x3_t) ( pixel *, pixel *, pixel *, pixel *, int, int[3] );
34 typedef void (*x264_pixel_cmp_x4_t) ( pixel *, pixel *, pixel *, pixel *, pixel *, int, int[4] );
54 } x264_pixel_size[7] =
63 static const uint8_t x264_size2pixel[5][5] =
66 { 0, PIXEL_4x4, PIXEL_8x4, 0, 0 },
67 { 0, PIXEL_4x8, PIXEL_8x8, 0, PIXEL_16x8 },
69 { 0, 0, PIXEL_8x16, 0, PIXEL_16x16 }
74 x264_pixel_cmp_t sad[7];
75 x264_pixel_cmp_t ssd[7];
76 x264_pixel_cmp_t satd[7];
77 x264_pixel_cmp_t ssim[7];
78 x264_pixel_cmp_t sa8d[4];
79 x264_pixel_cmp_t mbcmp[7]; /* either satd or sad for subpel refine and mode decision */
80 x264_pixel_cmp_t mbcmp_unaligned[7]; /* unaligned mbcmp for subpel */
81 x264_pixel_cmp_t fpelcmp[7]; /* either satd or sad for fullpel motion search */
82 x264_pixel_cmp_x3_t fpelcmp_x3[7];
83 x264_pixel_cmp_x4_t fpelcmp_x4[7];
84 x264_pixel_cmp_t sad_aligned[7]; /* Aligned SAD for mbcmp */
85 int (*vsad)( pixel *, int, int );
86 int (*var2_8x8)( pixel *, int, pixel *, int, int * );
88 uint64_t (*var[4])( pixel *pix, int stride );
89 uint64_t (*hadamard_ac[4])( pixel *pix, int stride );
91 void (*ssd_nv12_core)( pixel *pixuv1, int stride1,
92 pixel *pixuv2, int stride2, int width, int height,
93 uint64_t *ssd_u, uint64_t *ssd_v );
94 void (*ssim_4x4x2_core)( const pixel *pix1, int stride1,
95 const pixel *pix2, int stride2, int sums[2][4] );
96 float (*ssim_end4)( int sum0[5][4], int sum1[5][4], int width );
98 /* multiple parallel calls to cmp. */
99 x264_pixel_cmp_x3_t sad_x3[7];
100 x264_pixel_cmp_x4_t sad_x4[7];
101 x264_pixel_cmp_x3_t satd_x3[7];
102 x264_pixel_cmp_x4_t satd_x4[7];
104 /* abs-diff-sum for successive elimination.
105 * may round width up to a multiple of 16. */
106 int (*ads[7])( int enc_dc[4], uint16_t *sums, int delta,
107 uint16_t *cost_mvx, int16_t *mvs, int width, int thresh );
109 /* calculate satd or sad of V, H, and DC modes.
110 * may be NULL, in which case just use pred+satd instead. */
111 void (*intra_mbcmp_x3_16x16)( pixel *fenc, pixel *fdec , int res[3] );
112 void (*intra_satd_x3_16x16) ( pixel *fenc, pixel *fdec , int res[3] );
113 void (*intra_sad_x3_16x16) ( pixel *fenc, pixel *fdec , int res[3] );
114 void (*intra_mbcmp_x3_8x8c) ( pixel *fenc, pixel *fdec , int res[3] );
115 void (*intra_satd_x3_8x8c) ( pixel *fenc, pixel *fdec , int res[3] );
116 void (*intra_sad_x3_8x8c) ( pixel *fenc, pixel *fdec , int res[3] );
117 void (*intra_mbcmp_x3_4x4) ( pixel *fenc, pixel *fdec , int res[3] );
118 void (*intra_satd_x3_4x4) ( pixel *fenc, pixel *fdec , int res[3] );
119 void (*intra_sad_x3_4x4) ( pixel *fenc, pixel *fdec , int res[3] );
120 void (*intra_mbcmp_x3_8x8) ( pixel *fenc, pixel edge[33], int res[3] );
121 void (*intra_sa8d_x3_8x8) ( pixel *fenc, pixel edge[33], int res[3] );
122 void (*intra_sad_x3_8x8) ( pixel *fenc, pixel edge[33], int res[3] );
123 } x264_pixel_function_t;
125 void x264_pixel_init( int cpu, x264_pixel_function_t *pixf );
126 void x264_pixel_ssd_nv12( x264_pixel_function_t *pf, pixel *pix1, int i_pix1, pixel *pix2, int i_pix2, int i_width, int i_height, uint64_t *ssd_u, uint64_t *ssd_v );
127 uint64_t x264_pixel_ssd_wxh( x264_pixel_function_t *pf, pixel *pix1, int i_pix1, pixel *pix2, int i_pix2, int i_width, int i_height );
128 float x264_pixel_ssim_wxh( x264_pixel_function_t *pf, pixel *pix1, int i_pix1, pixel *pix2, int i_pix2, int i_width, int i_height, void *buf, int *cnt );
129 int x264_field_vsad( x264_t *h, int mb_x, int mb_y );