1 /*****************************************************************************
2 * pixel.h: h264 encoder library
3 *****************************************************************************
4 * Copyright (C) 2003 Laurent Aimar
5 * $Id: pixel.h,v 1.1 2004/06/03 19:27:07 fenrir Exp $
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
27 typedef int (*x264_pixel_cmp_t) ( uint8_t *, int, uint8_t *, int );
28 typedef int (*x264_pixel_cmp_pde_t) ( uint8_t *, int, uint8_t *, int, int );
29 typedef void (*x264_pixel_cmp_x3_t) ( uint8_t *, uint8_t *, uint8_t *, uint8_t *, int, int[3] );
30 typedef void (*x264_pixel_cmp_x4_t) ( uint8_t *, uint8_t *, uint8_t *, uint8_t *, uint8_t *, int, int[4] );
49 } x264_pixel_size[7] = {
57 static const int x264_size2pixel[5][5] = {
59 { 0, PIXEL_4x4, PIXEL_8x4, 0, 0 },
60 { 0, PIXEL_4x8, PIXEL_8x8, 0, PIXEL_16x8 },
62 { 0, 0, PIXEL_8x16, 0, PIXEL_16x16 }
67 x264_pixel_cmp_t sad[7];
68 x264_pixel_cmp_t ssd[7];
69 x264_pixel_cmp_t satd[7];
70 x264_pixel_cmp_t ssim[7];
71 x264_pixel_cmp_t sa8d[4];
72 x264_pixel_cmp_t mbcmp[7]; /* either satd or sad for subpel refine and mode decision */
73 x264_pixel_cmp_t rdcmp[7]; /* either ssd or ssim for rate-distortion */
75 void (*ssim_4x4x2_core)( const uint8_t *pix1, int stride1,
76 const uint8_t *pix2, int stride2, int sums[2][4] );
77 float (*ssim_end4)( int sum0[5][4], int sum1[5][4], int width );
79 /* partial distortion elimination:
80 * terminate early if partial score is worse than a threshold.
81 * may be NULL, in which case just use sad instead. */
82 x264_pixel_cmp_pde_t sad_pde[7];
84 /* multiple parallel calls to sad. */
85 x264_pixel_cmp_x3_t sad_x3[7];
86 x264_pixel_cmp_x4_t sad_x4[7];
88 /* abs-diff-sum for successive elimination.
89 * may round width up to a multiple of 8. */
90 void (*ads[7])( int enc_dc[4], uint16_t *sums, int delta,
91 uint16_t *res, int width );
93 /* calculate satd of V, H, and DC modes.
94 * may be NULL, in which case just use pred+satd instead. */
95 void (*intra_satd_x3_16x16)( uint8_t *fenc, uint8_t *fdec, int res[3] );
96 void (*intra_satd_x3_8x8c)( uint8_t *fenc, uint8_t *fdec, int res[3] );
97 void (*intra_satd_x3_4x4)( uint8_t *fenc, uint8_t *fdec, int res[3] );
98 void (*intra_sa8d_x3_8x8)( uint8_t *fenc, uint8_t edge[33], int res[3] );
99 } x264_pixel_function_t;
101 void x264_pixel_init( int cpu, x264_pixel_function_t *pixf );
102 int64_t x264_pixel_ssd_wxh( x264_pixel_function_t *pf, uint8_t *pix1, int i_pix1, uint8_t *pix2, int i_pix2, int i_width, int i_height );
103 float x264_pixel_ssim_wxh( x264_pixel_function_t *pf, uint8_t *pix1, int i_pix1, uint8_t *pix2, int i_pix2, int i_width, int i_height );