1 /*****************************************************************************
2 * macroblock.h: macroblock common functions
3 *****************************************************************************
4 * Copyright (C) 2005-2010 x264 project
6 * Authors: Loren Merritt <lorenm@u.washington.edu>
7 * Laurent Aimar <fenrir@via.ecp.fr>
8 * Fiona Glaser <fiona@x264.com>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
24 * This program is also available under a commercial proprietary license.
25 * For more information, contact us at licensing@x264.com.
26 *****************************************************************************/
28 #ifndef X264_MACROBLOCK_H
29 #define X264_MACROBLOCK_H
31 enum macroblock_position_e
43 static const uint8_t x264_pred_i4x4_neighbors[12] =
45 MB_TOP, // I_PRED_4x4_V
46 MB_LEFT, // I_PRED_4x4_H
47 MB_LEFT | MB_TOP, // I_PRED_4x4_DC
48 MB_TOP | MB_TOPRIGHT, // I_PRED_4x4_DDL
49 MB_LEFT | MB_TOPLEFT | MB_TOP, // I_PRED_4x4_DDR
50 MB_LEFT | MB_TOPLEFT | MB_TOP, // I_PRED_4x4_VR
51 MB_LEFT | MB_TOPLEFT | MB_TOP, // I_PRED_4x4_HD
52 MB_TOP | MB_TOPRIGHT, // I_PRED_4x4_VL
53 MB_LEFT, // I_PRED_4x4_HU
54 MB_LEFT, // I_PRED_4x4_DC_LEFT
55 MB_TOP, // I_PRED_4x4_DC_TOP
56 0 // I_PRED_4x4_DC_128
60 /* XXX mb_type isn't the one written in the bitstream -> only internal usage */
61 #define IS_INTRA(type) ( (type) == I_4x4 || (type) == I_8x8 || (type) == I_16x16 || (type) == I_PCM )
62 #define IS_SKIP(type) ( (type) == P_SKIP || (type) == B_SKIP )
63 #define IS_DIRECT(type) ( (type) == B_DIRECT )
90 static const uint8_t x264_mb_type_fix[X264_MBTYPE_MAX] =
92 I_4x4, I_4x4, I_16x16, I_PCM,
94 B_DIRECT, B_L0_L0, B_L0_L1, B_L0_BI, B_L1_L0, B_L1_L1,
95 B_L1_BI, B_BI_L0, B_BI_L1, B_BI_BI, B_8x8, B_SKIP
97 static const uint8_t x264_mb_type_list_table[X264_MBTYPE_MAX][2][2] =
99 {{0,0},{0,0}}, {{0,0},{0,0}}, {{0,0},{0,0}}, {{0,0},{0,0}}, /* INTRA */
100 {{1,1},{0,0}}, /* P_L0 */
101 {{0,0},{0,0}}, /* P_8x8 */
102 {{1,1},{0,0}}, /* P_SKIP */
103 {{0,0},{0,0}}, /* B_DIRECT */
104 {{1,1},{0,0}}, {{1,0},{0,1}}, {{1,1},{0,1}}, /* B_L0_* */
105 {{0,1},{1,0}}, {{0,0},{1,1}}, {{0,1},{1,1}}, /* B_L1_* */
106 {{1,1},{1,0}}, {{1,0},{1,1}}, {{1,1},{1,1}}, /* B_BI_* */
107 {{0,0},{0,0}}, /* B_8x8 */
108 {{0,0},{0,0}} /* B_SKIP */
111 #define IS_SUB4x4(type) ( (type ==D_L0_4x4)||(type ==D_L1_4x4)||(type ==D_BI_4x4))
112 #define IS_SUB4x8(type) ( (type ==D_L0_4x8)||(type ==D_L1_4x8)||(type ==D_BI_4x8))
113 #define IS_SUB8x4(type) ( (type ==D_L0_8x4)||(type ==D_L1_8x4)||(type ==D_BI_8x4))
114 #define IS_SUB8x8(type) ( (type ==D_L0_8x8)||(type ==D_L1_8x8)||(type ==D_BI_8x8)||(type ==D_DIRECT_8x8))
117 /* sub partition type for P_8x8 and B_8x8 */
123 /* sub partition type for B_8x8 only */
140 X264_PARTTYPE_MAX = 17,
143 static const uint8_t x264_mb_partition_listX_table[2][17] =
145 1, 1, 1, 1, /* D_L0_* */
146 0, 0, 0, 0, /* D_L1_* */
147 1, 1, 1, 1, /* D_BI_* */
148 0, /* D_DIRECT_8x8 */
149 0, 0, 0, 0 /* 8x8 .. 16x16 */
152 0, 0, 0, 0, /* D_L0_* */
153 1, 1, 1, 1, /* D_L1_* */
154 1, 1, 1, 1, /* D_BI_* */
155 0, /* D_DIRECT_8x8 */
156 0, 0, 0, 0 /* 8x8 .. 16x16 */
158 static const uint8_t x264_mb_partition_count_table[17] =
171 static const uint8_t x264_mb_partition_pixel_table[17] =
173 PIXEL_4x4, PIXEL_8x4, PIXEL_4x8, PIXEL_8x8, /* D_L0_* */
174 PIXEL_4x4, PIXEL_8x4, PIXEL_4x8, PIXEL_8x8, /* D_L1_* */
175 PIXEL_4x4, PIXEL_8x4, PIXEL_4x8, PIXEL_8x8, /* D_BI_* */
176 PIXEL_8x8, /* D_DIRECT_8x8 */
177 PIXEL_8x8, PIXEL_16x8, PIXEL_8x16, PIXEL_16x16, /* 8x8 .. 16x16 */
180 /* zigzags are transposed with respect to the tables in the standard */
181 static const uint8_t x264_zigzag_scan4[2][16] =
183 0, 4, 1, 2, 5, 8, 12, 9, 6, 3, 7, 10, 13, 14, 11, 15
186 0, 1, 4, 2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
188 static const uint8_t x264_zigzag_scan8[2][64] =
190 0, 8, 1, 2, 9, 16, 24, 17, 10, 3, 4, 11, 18, 25, 32, 40,
191 33, 26, 19, 12, 5, 6, 13, 20, 27, 34, 41, 48, 56, 49, 42, 35,
192 28, 21, 14, 7, 15, 22, 29, 36, 43, 50, 57, 58, 51, 44, 37, 30,
193 23, 31, 38, 45, 52, 59, 60, 53, 46, 39, 47, 54, 61, 62, 55, 63
196 0, 1, 2, 8, 9, 3, 4, 10, 16, 11, 5, 6, 7, 12, 17, 24,
197 18, 13, 14, 15, 19, 25, 32, 26, 20, 21, 22, 23, 27, 33, 40, 34,
198 28, 29, 30, 31, 35, 41, 48, 42, 36, 37, 38, 39, 43, 49, 50, 44,
199 45, 46, 47, 51, 56, 57, 52, 53, 54, 55, 58, 59, 60, 61, 62, 63
202 static const uint8_t block_idx_x[16] =
204 0, 1, 0, 1, 2, 3, 2, 3, 0, 1, 0, 1, 2, 3, 2, 3
206 static const uint8_t block_idx_y[16] =
208 0, 0, 1, 1, 0, 0, 1, 1, 2, 2, 3, 3, 2, 2, 3, 3
210 static const uint8_t block_idx_xy[4][4] =
217 static const uint8_t block_idx_xy_1d[16] =
219 0, 1, 4, 5, 2, 3, 6, 7, 8, 9, 12, 13, 10, 11, 14, 15
221 static const uint8_t block_idx_yx_1d[16] =
223 0, 4, 1, 5, 8, 12, 9, 13, 2, 6, 3, 7, 10, 14, 11, 15
225 static const uint8_t block_idx_xy_fenc[16] =
227 0*4 + 0*4*FENC_STRIDE, 1*4 + 0*4*FENC_STRIDE,
228 0*4 + 1*4*FENC_STRIDE, 1*4 + 1*4*FENC_STRIDE,
229 2*4 + 0*4*FENC_STRIDE, 3*4 + 0*4*FENC_STRIDE,
230 2*4 + 1*4*FENC_STRIDE, 3*4 + 1*4*FENC_STRIDE,
231 0*4 + 2*4*FENC_STRIDE, 1*4 + 2*4*FENC_STRIDE,
232 0*4 + 3*4*FENC_STRIDE, 1*4 + 3*4*FENC_STRIDE,
233 2*4 + 2*4*FENC_STRIDE, 3*4 + 2*4*FENC_STRIDE,
234 2*4 + 3*4*FENC_STRIDE, 3*4 + 3*4*FENC_STRIDE
236 static const uint16_t block_idx_xy_fdec[16] =
238 0*4 + 0*4*FDEC_STRIDE, 1*4 + 0*4*FDEC_STRIDE,
239 0*4 + 1*4*FDEC_STRIDE, 1*4 + 1*4*FDEC_STRIDE,
240 2*4 + 0*4*FDEC_STRIDE, 3*4 + 0*4*FDEC_STRIDE,
241 2*4 + 1*4*FDEC_STRIDE, 3*4 + 1*4*FDEC_STRIDE,
242 0*4 + 2*4*FDEC_STRIDE, 1*4 + 2*4*FDEC_STRIDE,
243 0*4 + 3*4*FDEC_STRIDE, 1*4 + 3*4*FDEC_STRIDE,
244 2*4 + 2*4*FDEC_STRIDE, 3*4 + 2*4*FDEC_STRIDE,
245 2*4 + 3*4*FDEC_STRIDE, 3*4 + 3*4*FDEC_STRIDE
248 #define QP(qP) ( (qP)+QP_BD_OFFSET )
249 static const uint8_t i_chroma_qp_table[QP_MAX+1+12*2] =
254 QP(-12),QP(-11),QP(-10), QP(-9), QP(-8), QP(-7),
257 QP(-6), QP(-5), QP(-4), QP(-3), QP(-2), QP(-1),
259 QP(0), QP(1), QP(2), QP(3), QP(4), QP(5),
260 QP(6), QP(7), QP(8), QP(9), QP(10), QP(11),
261 QP(12), QP(13), QP(14), QP(15), QP(16), QP(17),
262 QP(18), QP(19), QP(20), QP(21), QP(22), QP(23),
263 QP(24), QP(25), QP(26), QP(27), QP(28), QP(29),
264 QP(29), QP(30), QP(31), QP(32), QP(32), QP(33),
265 QP(34), QP(34), QP(35), QP(35), QP(36), QP(36),
266 QP(37), QP(37), QP(37), QP(38), QP(38), QP(38),
267 QP(39), QP(39), QP(39), QP(39),
268 QP(39), QP(39), QP(39), QP(39), QP(39), QP(39),
269 QP(39), QP(39), QP(39), QP(39), QP(39), QP(39),
273 enum cabac_ctx_block_cat_e
283 /* Per-frame allocation: is allocated per-thread only in frame-threads mode. */
284 int x264_macroblock_cache_allocate( x264_t *h );
285 void x264_macroblock_cache_free( x264_t *h );
287 /* Per-thread allocation: is allocated per-thread even in sliced-threads mode. */
288 int x264_macroblock_thread_allocate( x264_t *h, int b_lookahead );
289 void x264_macroblock_thread_free( x264_t *h, int b_lookahead );
291 void x264_macroblock_slice_init( x264_t *h );
292 void x264_macroblock_thread_init( x264_t *h );
293 void x264_macroblock_cache_load( x264_t *h, int mb_x, int mb_y );
294 void x264_macroblock_cache_load_deblock( x264_t *h );
295 void x264_macroblock_cache_load_neighbours_deblock( x264_t *h, int mb_x, int mb_y );
296 void x264_macroblock_cache_save( x264_t *h );
298 void x264_macroblock_bipred_init( x264_t *h );
300 void x264_prefetch_fenc( x264_t *h, x264_frame_t *fenc, int i_mb_x, int i_mb_y );
302 void x264_copy_column8( pixel *dst, pixel *src );
304 /* x264_mb_predict_mv_16x16:
305 * set mvp with predicted mv for D_16x16 block
306 * h->mb. need only valid values from other blocks */
307 void x264_mb_predict_mv_16x16( x264_t *h, int i_list, int i_ref, int16_t mvp[2] );
308 /* x264_mb_predict_mv_pskip:
309 * set mvp with predicted mv for P_SKIP
310 * h->mb. need only valid values from other blocks */
311 void x264_mb_predict_mv_pskip( x264_t *h, int16_t mv[2] );
312 /* x264_mb_predict_mv:
313 * set mvp with predicted mv for all blocks except SKIP and DIRECT
314 * h->mb. need valid ref/partition/sub of current block to be valid
315 * and valid mv/ref from other blocks. */
316 void x264_mb_predict_mv( x264_t *h, int i_list, int idx, int i_width, int16_t mvp[2] );
317 /* x264_mb_predict_mv_direct16x16:
318 * set h->mb.cache.mv and h->mb.cache.ref for B_SKIP or B_DIRECT
319 * h->mb. need only valid values from other blocks.
320 * return 1 on success, 0 on failure.
321 * if b_changed != NULL, set it to whether refs or mvs differ from
322 * before this functioncall. */
323 int x264_mb_predict_mv_direct16x16( x264_t *h, int *b_changed );
324 /* x264_mb_predict_mv_ref16x16:
325 * set mvc with D_16x16 prediction.
326 * uses all neighbors, even those that didn't end up using this ref.
327 * h->mb. need only valid values from other blocks */
328 void x264_mb_predict_mv_ref16x16( x264_t *h, int i_list, int i_ref, int16_t mvc[8][2], int *i_mvc );
330 void x264_mb_mc( x264_t *h );
331 void x264_mb_mc_8x8( x264_t *h, int i8 );
333 static ALWAYS_INLINE uint32_t pack16to32( int a, int b )
341 static ALWAYS_INLINE uint32_t pack8to16( int a, int b )
349 static ALWAYS_INLINE uint32_t pack8to32( int a, int b, int c, int d )
352 return d + (c<<8) + (b<<16) + (a<<24);
354 return a + (b<<8) + (c<<16) + (d<<24);
357 static ALWAYS_INLINE uint32_t pack16to32_mask( int a, int b )
360 return (b&0xFFFF) + (a<<16);
362 return (a&0xFFFF) + (b<<16);
365 static ALWAYS_INLINE uint64_t pack32to64( uint32_t a, uint32_t b )
368 return b + ((uint64_t)a<<32);
370 return a + ((uint64_t)b<<32);
375 # define pack_pixel_1to2 pack16to32
376 # define pack_pixel_2to4 pack32to64
378 # define pack_pixel_1to2 pack8to16
379 # define pack_pixel_2to4 pack16to32
382 #define array_non_zero(a) array_non_zero_int(a, sizeof(a)/sizeof(dctcoef))
383 #define array_non_zero_int array_non_zero_int
384 static ALWAYS_INLINE int array_non_zero_int( dctcoef *v, int i_count )
386 for( int i = 0; i < i_count; i++ )
391 static ALWAYS_INLINE int x264_mb_predict_intra4x4_mode( x264_t *h, int idx )
393 const int ma = h->mb.cache.intra4x4_pred_mode[x264_scan8[idx] - 1];
394 const int mb = h->mb.cache.intra4x4_pred_mode[x264_scan8[idx] - 8];
395 const int m = X264_MIN( x264_mb_pred_mode4x4_fix(ma),
396 x264_mb_pred_mode4x4_fix(mb) );
399 return I_PRED_4x4_DC;
403 static ALWAYS_INLINE int x264_mb_predict_non_zero_code( x264_t *h, int idx )
405 const int za = h->mb.cache.non_zero_count[x264_scan8[idx] - 1];
406 const int zb = h->mb.cache.non_zero_count[x264_scan8[idx] - 8];
411 i_ret = ( i_ret + 1 ) >> 1;
414 /* x264_mb_transform_8x8_allowed:
415 * check whether any partition is smaller than 8x8 (or at least
416 * might be, according to just partition type.)
417 * doesn't check for cbp */
418 static ALWAYS_INLINE int x264_mb_transform_8x8_allowed( x264_t *h )
420 // intra and skip are disallowed
421 // large partitions are allowed
422 // direct and 8x8 are conditional
423 static const uint8_t partition_tab[X264_MBTYPE_MAX] = {
424 0,0,0,0,1,2,0,1,1,1,1,1,1,1,1,1,1,1,0,
427 if( !h->pps->b_transform_8x8_mode )
429 if( h->mb.i_type != P_8x8 )
430 return partition_tab[h->mb.i_type];
431 return M32( h->mb.i_sub_partition ) == D_L0_8x8*0x01010101;