pixel.h
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上传日期:2021-12-09
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文件大小:3k
源码类别:
Audio
开发平台:
Visual C++
- /*****************************************************************************
- * pixel.h: h264 encoder library
- *****************************************************************************
- * Copyright (C) 2003 Laurent Aimar
- * $Id: pixel.h,v 1.1 2004/06/03 19:27:07 fenrir Exp $
- *
- * Authors: Laurent Aimar <fenrir@via.ecp.fr>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- #ifndef _PIXEL_H
- #define _PIXEL_H 1
- typedef int (*x264_pixel_cmp_t) ( uint8_t *, int, uint8_t *, int );
- typedef int (*x264_pixel_cmp_pde_t) ( uint8_t *, int, uint8_t *, int, int );
- enum
- {
- PIXEL_16x16 = 0,
- PIXEL_16x8 = 1,
- PIXEL_8x16 = 2,
- PIXEL_8x8 = 3,
- PIXEL_8x4 = 4,
- PIXEL_4x8 = 5,
- PIXEL_4x4 = 6,
- PIXEL_4x2 = 7,
- PIXEL_2x4 = 8,
- PIXEL_2x2 = 9,
- };
- static const struct {
- int w;
- int h;
- } x264_pixel_size[7] = {
- { 16, 16 },
- { 16, 8 }, { 8, 16 },
- { 8, 8 },
- { 8, 4 }, { 4, 8 },
- { 4, 4 }
- };
- static const int x264_size2pixel[5][5] = {
- { 0, },
- { 0, PIXEL_4x4, PIXEL_8x4, 0, 0 },
- { 0, PIXEL_4x8, PIXEL_8x8, 0, PIXEL_16x8 },
- { 0, },
- { 0, 0, PIXEL_8x16, 0, PIXEL_16x16 }
- };
- typedef struct
- {
- x264_pixel_cmp_t sad[7];
- x264_pixel_cmp_t ssd[7];
- x264_pixel_cmp_t satd[7];
- x264_pixel_cmp_t sa8d[4];
- x264_pixel_cmp_t mbcmp[7]; /* either satd or sad for subpel refine and mode decision */
- /* partial distortion elimination:
- * terminate early if partial score is worse than a threshold.
- * may be NULL, in which case just use sad instead. */
- x264_pixel_cmp_pde_t sad_pde[7];
- } x264_pixel_function_t;
- void x264_pixel_init( int cpu, x264_pixel_function_t *pixf );
- 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 );
- #endif