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 )
40 #define IS_DIRECT(type) ( (type) == B_DIRECT )
64 static const int x264_mb_type_list0_table[18][2] =
66 {0,0}, {0,0}, {0,0}, /* INTRA */
71 {1,1}, {1,0}, {1,1}, /* B_L0_* */
72 {0,1}, {0,0}, {0,1}, /* B_L1_* */
73 {1,1}, {1,0}, {1,1}, /* B_BI_* */
77 static const int x264_mb_type_list1_table[18][2] =
79 {0,0}, {0,0}, {0,0}, /* INTRA */
84 {0,0}, {0,1}, {0,1}, /* B_L0_* */
85 {1,0}, {1,1}, {1,1}, /* B_L1_* */
86 {1,0}, {1,1}, {1,1}, /* B_BI_* */
91 #define IS_SUB4x4(type) ( (type ==D_L0_4x4)||(type ==D_L1_4x4)||(type ==D_BI_4x4))
92 #define IS_SUB4x8(type) ( (type ==D_L0_4x8)||(type ==D_L1_4x8)||(type ==D_BI_4x8))
93 #define IS_SUB8x4(type) ( (type ==D_L0_8x4)||(type ==D_L1_8x4)||(type ==D_BI_8x4))
94 #define IS_SUB8x8(type) ( (type ==D_L0_8x8)||(type ==D_L1_8x8)||(type ==D_BI_8x8)||(type ==D_DIRECT_8x8))
97 /* sub partition type for P_8x8 and B_8x8 */
103 /* sub partition type for B_8x8 only */
122 static const int x264_mb_partition_listX_table[2][17] =
124 1, 1, 1, 1, /* D_L0_* */
125 0, 0, 0, 0, /* D_L1_* */
126 1, 1, 1, 1, /* D_BI_* */
127 0, /* D_DIRECT_8x8 */
128 0, 0, 0, 0 /* 8x8 .. 16x16 */
131 0, 0, 0, 0, /* D_L0_* */
132 1, 1, 1, 1, /* D_L1_* */
133 1, 1, 1, 1, /* D_BI_* */
134 0, /* D_DIRECT_8x8 */
135 0, 0, 0, 0 /* 8x8 .. 16x16 */
137 static const int x264_mb_partition_count_table[17] =
151 void x264_macroblock_cache_init( x264_t *h );
152 void x264_macroblock_slice_init( x264_t *h );
153 void x264_macroblock_cache_load( x264_t *h, int i_mb_x, int i_mb_y );
154 void x264_macroblock_cache_save( x264_t *h );
155 void x264_macroblock_cache_end( x264_t *h );
157 void x264_macroblock_bipred_init( x264_t *h );
159 void x264_mb_dequant_4x4_dc( int16_t dct[4][4], int i_qscale );
160 void x264_mb_dequant_2x2_dc( int16_t dct[2][2], int i_qscale );
161 void x264_mb_dequant_4x4( int16_t dct[4][4], int i_qscale );
163 /* x264_mb_predict_mv_16x16:
164 * set mvp with predicted mv for D_16x16 block
165 * h->mb. need only valid values from other blocks */
166 void x264_mb_predict_mv_16x16( x264_t *h, int i_list, int i_ref, int mvp[2] );
167 /* x264_mb_predict_mv_pskip:
168 * set mvp with predicted mv for P_SKIP
169 * h->mb. need only valid values from other blocks */
170 void x264_mb_predict_mv_pskip( x264_t *h, int mv[2] );
171 /* x264_mb_predict_mv:
172 * set mvp with predicted mv for all blocks except SKIP and DIRECT
173 * h->mb. need valid ref/partition/sub of current block to be valid
174 * and valid mv/ref from other blocks . */
175 void x264_mb_predict_mv( x264_t *h, int i_list, int idx, int i_width, int mvp[2] );
176 /* x264_mb_predict_mv_direct16x16:
177 * set h->mb.cache.mv and h->mb.cache.ref for B_SKIP or B_DIRECT
178 * h->mb. need only valid values from other blocks
179 * return 1 on success, 0 on failure */
180 int x264_mb_predict_mv_direct16x16( x264_t *h );
181 /* x264_mb_load_mv_direct8x8:
182 * set h->mb.cache.mv and h->mb.cache.ref for B_DIRECT
183 * must be called only after x264_mb_predict_mv_direct16x16 */
184 void x264_mb_load_mv_direct8x8( x264_t *h, int idx );
185 /* x264_mb_predict_mv_ref16x16:
186 * set mvc with D_16x16 prediction.
187 * uses all neighbors, even those that didn't end up using this ref.
188 * h->mb. need only valid values from other blocks */
189 void x264_mb_predict_mv_ref16x16( x264_t *h, int i_list, int i_ref, int mvc[5][2], int *i_mvc );
192 int x264_mb_predict_intra4x4_mode( x264_t *h, int idx );
193 int x264_mb_predict_non_zero_code( x264_t *h, int idx );
195 void x264_mb_encode_i4x4( x264_t *h, int idx, int i_qscale );
197 void x264_mb_mc( x264_t *h );
200 static inline void x264_macroblock_cache_ref( x264_t *h, int x, int y, int width, int height, int i_list, int ref )
203 for( dy = 0; dy < height; dy++ )
205 for( dx = 0; dx < width; dx++ )
207 h->mb.cache.ref[i_list][X264_SCAN8_0+x+dx+8*(y+dy)] = ref;
211 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 )
214 for( dy = 0; dy < height; dy++ )
216 for( dx = 0; dx < width; dx++ )
218 h->mb.cache.mv[i_list][X264_SCAN8_0+x+dx+8*(y+dy)][0] = mvx;
219 h->mb.cache.mv[i_list][X264_SCAN8_0+x+dx+8*(y+dy)][1] = mvy;
223 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 )
226 for( dy = 0; dy < height; dy++ )
228 for( dx = 0; dx < width; dx++ )
230 h->mb.cache.mvd[i_list][X264_SCAN8_0+x+dx+8*(y+dy)][0] = mdx;
231 h->mb.cache.mvd[i_list][X264_SCAN8_0+x+dx+8*(y+dy)][1] = mdy;
235 static inline void x264_macroblock_cache_skip( x264_t *h, int x, int y, int width, int height, int b_skip )
238 for( dy = 0; dy < height; dy++ )
240 for( dx = 0; dx < width; dx++ )
242 h->mb.cache.skip[X264_SCAN8_0+x+dx+8*(y+dy)] = b_skip;