1 /*****************************************************************************
2 * macroblock.h: h264 encoder library
3 *****************************************************************************
4 * Copyright (C) 2003 Laurent Aimar
5 * $Id: macroblock.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 *****************************************************************************/
25 #define _MACROBLOCK_H 1
27 enum macroblock_position_e
37 /* XXX mb_type isn't the one written in the bitstream -> only internal usage */
38 #define IS_INTRA(type) ( (type) == I_4x4 || (type) == I_16x16 )
39 #define IS_SKIP(type) ( (type) == P_SKIP || (type) == B_SKIP )
63 static const int x264_mb_type_list0_table[18][2] =
65 {0,0}, {0,0}, {0,0}, /* INTRA */
70 {1,1}, {1,0}, {1,1}, /* B_L0_* */
71 {0,1}, {0,0}, {0,1}, /* B_L1_* */
72 {1,1}, {1,0}, {1,1}, /* B_BI_* */
76 static const int x264_mb_type_list1_table[18][2] =
78 {0,0}, {0,0}, {0,0}, /* INTRA */
83 {0,0}, {0,1}, {0,1}, /* B_L0_* */
84 {1,0}, {1,1}, {1,1}, /* B_L1_* */
85 {1,0}, {1,1}, {1,1}, /* B_BI_* */
90 #define IS_SUB4x4(type) ( (type ==D_L0_4x4)||(type ==D_L1_4x4)||(type ==D_BI_4x4))
91 #define IS_SUB4x8(type) ( (type ==D_L0_4x8)||(type ==D_L1_4x8)||(type ==D_BI_4x8))
92 #define IS_SUB8x4(type) ( (type ==D_L0_8x4)||(type ==D_L1_8x4)||(type ==D_BI_8x4))
93 #define IS_SUB8x8(type) ( (type ==D_L0_8x8)||(type ==D_L1_8x8)||(type ==D_BI_8x8)||(type ==D_DIRECT_8x8))
96 /* sub partition type for P_8x8 and B_8x8 */
102 /* sub partition type for B_8x8 only */
121 static const int x264_mb_partition_count_table[17] =
135 void x264_macroblock_cache_init( x264_t *h );
136 void x264_macroblock_cache_load( x264_t *h, int, int );
137 void x264_macroblock_cache_save( x264_t *h );
138 void x264_macroblock_cache_end( x264_t *h );
140 void x264_mb_dequant_4x4_dc( int16_t dct[4][4], int i_qscale );
141 void x264_mb_dequant_2x2_dc( int16_t dct[2][2], int i_qscale );
142 void x264_mb_dequant_4x4( int16_t dct[4][4], int i_qscale );
144 /* x264_mb_predict_mv_16x16:
145 * set mvp with predicted mv for D_16x16 block
146 * h->mb. need only valid values from other blocks */
147 void x264_mb_predict_mv_16x16( x264_t *h, int i_list, int i_ref, int mvp[2] );
148 /* x264_mb_predict_mv_pskip:
149 * set mvp with predicted mv for P_SKIP
150 * h->mb. need only valid values from other blocks */
151 void x264_mb_predict_mv_pskip( x264_t *h, int mv[2] );
152 /* x264_mb_predict_mv:
153 * set mvp with predicted mv for all blocks except P_SKIP
154 * h->mb. need valid ref/partition/sub of current block to be valid
155 * and valid mv/ref from other blocks . */
156 void x264_mb_predict_mv( x264_t *h, int i_list, int idx, int i_width, int mvp[2] );
157 /* x264_mb_predict_mv_ref16x16:
158 * set mvc with D_16x16 prediction.
159 * uses all neighbors, even those that didn't end up using this ref.
160 * need only valid values from other blocks */
161 void x264_mb_predict_mv_ref16x16( x264_t *h, int i_list, int i_ref, int mvc[4][2], int *i_mvc );
164 int x264_mb_predict_intra4x4_mode( x264_t *h, int idx );
165 int x264_mb_predict_non_zero_code( x264_t *h, int idx );
167 void x264_mb_encode_i4x4( x264_t *h, int idx, int i_qscale );
169 void x264_mb_mc( x264_t *h );
172 static inline void x264_macroblock_cache_ref( x264_t *h, int x, int y, int width, int height, int i_list, int ref )
175 for( dy = 0; dy < height; dy++ )
177 for( dx = 0; dx < width; dx++ )
179 h->mb.cache.ref[i_list][X264_SCAN8_0+x+dx+8*(y+dy)] = ref;
183 static inline void x264_macroblock_cache_mv( x264_t *h, int x, int y, int width, int height, int i_list, int mvx, int mvy )
186 for( dy = 0; dy < height; dy++ )
188 for( dx = 0; dx < width; dx++ )
190 h->mb.cache.mv[i_list][X264_SCAN8_0+x+dx+8*(y+dy)][0] = mvx;
191 h->mb.cache.mv[i_list][X264_SCAN8_0+x+dx+8*(y+dy)][1] = mvy;
195 static inline void x264_macroblock_cache_mvd( x264_t *h, int x, int y, int width, int height, int i_list, int mdx, int mdy )
198 for( dy = 0; dy < height; dy++ )
200 for( dx = 0; dx < width; dx++ )
202 h->mb.cache.mvd[i_list][X264_SCAN8_0+x+dx+8*(y+dy)][0] = mdx;
203 h->mb.cache.mvd[i_list][X264_SCAN8_0+x+dx+8*(y+dy)][1] = mdy;