me.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++
- /*****************************************************************************
- * me.h: h264 encoder library (Motion Estimation)
- *****************************************************************************
- * Copyright (C) 2003-2008 x264 project
- *
- * Authors: Loren Merritt <lorenm@u.washington.edu>
- * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
- *****************************************************************************/
- #ifndef X264_ME_H
- #define X264_ME_H
- #define COST_MAX (1<<28)
- #define COST_MAX64 (1ULL<<60)
- typedef struct
- {
- /* input */
- int i_pixel; /* PIXEL_WxH */
- int16_t *p_cost_mv; /* lambda * nbits for each possible mv */
- int i_ref_cost;
- int i_ref;
- uint8_t *p_fref[6];
- uint8_t *p_fenc[3];
- uint16_t *integral;
- int i_stride[2];
- DECLARE_ALIGNED_4( int16_t mvp[2] );
- /* output */
- int cost_mv; /* lambda * nbits for the chosen mv */
- int cost; /* satd + lambda * nbits */
- DECLARE_ALIGNED_4( int16_t mv[2] );
- } DECLARE_ALIGNED_16( x264_me_t );
- void x264_me_search_ref( x264_t *h, x264_me_t *m, int16_t (*mvc)[2], int i_mvc, int *p_fullpel_thresh );
- static inline void x264_me_search( x264_t *h, x264_me_t *m, int16_t (*mvc)[2], int i_mvc )
- { x264_me_search_ref( h, m, mvc, i_mvc, NULL ); }
- void x264_me_refine_qpel( x264_t *h, x264_me_t *m );
- void x264_me_refine_qpel_rd( x264_t *h, x264_me_t *m, int i_lambda2, int i8 );
- int x264_me_refine_bidir( x264_t *h, x264_me_t *m0, x264_me_t *m1, int i_weight );
- uint64_t x264_rd_cost_part( x264_t *h, int i_lambda2, int i8, int i_pixel );
- extern uint16_t *x264_cost_mv_fpel[52][4];
- #define COPY1_IF_LT(x,y)
- if((y)<(x))
- (x)=(y);
- #define COPY2_IF_LT(x,y,a,b)
- if((y)<(x))
- {
- (x)=(y);
- (a)=(b);
- }
- #define COPY3_IF_LT(x,y,a,b,c,d)
- if((y)<(x))
- {
- (x)=(y);
- (a)=(b);
- (c)=(d);
- }
- #define COPY4_IF_LT(x,y,a,b,c,d,f,e)
- if((y)<(x))
- {
- (x)=(y);
- (a)=(b);
- (c)=(d);
- (f)=(e);
- }
- #endif