/*****************************************************************************
- * macroblock.h: h264 encoder library
+ * macroblock.h: macroblock common functions
*****************************************************************************
- * Copyright (C) 2003 Laurent Aimar
- * $Id: macroblock.h,v 1.1 2004/06/03 19:27:07 fenrir Exp $
+ * Copyright (C) 2005-2016 x264 project
*
- * Authors: Laurent Aimar <fenrir@via.ecp.fr>
+ * Authors: Loren Merritt <lorenm@u.washington.edu>
+ * Laurent Aimar <fenrir@via.ecp.fr>
+ * Fiona Glaser <fiona@x264.com>
*
* 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
*
* 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.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
+ *
+ * This program is also available under a commercial proprietary license.
+ * For more information, contact us at licensing@x264.com.
*****************************************************************************/
-#ifndef _MACROBLOCK_H
-#define _MACROBLOCK_H 1
+#ifndef X264_MACROBLOCK_H
+#define X264_MACROBLOCK_H
enum macroblock_position_e
{
MB_LEFT = 0x01,
MB_TOP = 0x02,
MB_TOPRIGHT = 0x04,
+ MB_TOPLEFT = 0x08,
MB_PRIVATE = 0x10,
+
+ ALL_NEIGHBORS = 0xf,
+};
+
+static const uint8_t x264_pred_i4x4_neighbors[12] =
+{
+ MB_TOP, // I_PRED_4x4_V
+ MB_LEFT, // I_PRED_4x4_H
+ MB_LEFT | MB_TOP, // I_PRED_4x4_DC
+ MB_TOP | MB_TOPRIGHT, // I_PRED_4x4_DDL
+ MB_LEFT | MB_TOPLEFT | MB_TOP, // I_PRED_4x4_DDR
+ MB_LEFT | MB_TOPLEFT | MB_TOP, // I_PRED_4x4_VR
+ MB_LEFT | MB_TOPLEFT | MB_TOP, // I_PRED_4x4_HD
+ MB_TOP | MB_TOPRIGHT, // I_PRED_4x4_VL
+ MB_LEFT, // I_PRED_4x4_HU
+ MB_LEFT, // I_PRED_4x4_DC_LEFT
+ MB_TOP, // I_PRED_4x4_DC_TOP
+ 0 // I_PRED_4x4_DC_128
};
/* XXX mb_type isn't the one written in the bitstream -> only internal usage */
-#define IS_INTRA(type) ( (type) == I_4x4 || (type) == I_16x16 )
+#define IS_INTRA(type) ( (type) == I_4x4 || (type) == I_8x8 || (type) == I_16x16 || (type) == I_PCM )
#define IS_SKIP(type) ( (type) == P_SKIP || (type) == B_SKIP )
#define IS_DIRECT(type) ( (type) == B_DIRECT )
enum mb_class_e
{
I_4x4 = 0,
- I_16x16 = 1,
- I_PCM = 2,
-
- P_L0 = 3,
- P_8x8 = 4,
- P_SKIP = 5,
-
- B_DIRECT = 6,
- B_L0_L0 = 7,
- B_L0_L1 = 8,
- B_L0_BI = 9,
- B_L1_L0 = 10,
- B_L1_L1 = 11,
- B_L1_BI = 12,
- B_BI_L0 = 13,
- B_BI_L1 = 14,
- B_BI_BI = 15,
- B_8x8 = 16,
- B_SKIP = 17,
-};
-static const int x264_mb_type_list0_table[18][2] =
-{
- {0,0}, {0,0}, {0,0}, /* INTRA */
- {1,1}, /* P_L0 */
- {0,0}, /* P_8x8 */
- {1,1}, /* P_SKIP */
- {0,0}, /* B_DIRECT */
- {1,1}, {1,0}, {1,1}, /* B_L0_* */
- {0,1}, {0,0}, {0,1}, /* B_L1_* */
- {1,1}, {1,0}, {1,1}, /* B_BI_* */
- {0,0}, /* B_8x8 */
- {0,0} /* B_SKIP */
-};
-static const int x264_mb_type_list1_table[18][2] =
-{
- {0,0}, {0,0}, {0,0}, /* INTRA */
- {0,0}, /* P_L0 */
- {0,0}, /* P_8x8 */
- {0,0}, /* P_SKIP */
- {0,0}, /* B_DIRECT */
- {0,0}, {0,1}, {0,1}, /* B_L0_* */
- {1,0}, {1,1}, {1,1}, /* B_L1_* */
- {1,0}, {1,1}, {1,1}, /* B_BI_* */
- {0,0}, /* B_8x8 */
- {0,0} /* B_SKIP */
+ I_8x8 = 1,
+ I_16x16 = 2,
+ I_PCM = 3,
+
+ P_L0 = 4,
+ P_8x8 = 5,
+ P_SKIP = 6,
+
+ B_DIRECT = 7,
+ B_L0_L0 = 8,
+ B_L0_L1 = 9,
+ B_L0_BI = 10,
+ B_L1_L0 = 11,
+ B_L1_L1 = 12,
+ B_L1_BI = 13,
+ B_BI_L0 = 14,
+ B_BI_L1 = 15,
+ B_BI_BI = 16,
+ B_8x8 = 17,
+ B_SKIP = 18,
+
+ X264_MBTYPE_MAX = 19
+};
+static const uint8_t x264_mb_type_fix[X264_MBTYPE_MAX] =
+{
+ I_4x4, I_4x4, I_16x16, I_PCM,
+ P_L0, P_8x8, P_SKIP,
+ B_DIRECT, B_L0_L0, B_L0_L1, B_L0_BI, B_L1_L0, B_L1_L1,
+ B_L1_BI, B_BI_L0, B_BI_L1, B_BI_BI, B_8x8, B_SKIP
+};
+static const uint8_t x264_mb_type_list_table[X264_MBTYPE_MAX][2][2] =
+{
+ {{0,0},{0,0}}, {{0,0},{0,0}}, {{0,0},{0,0}}, {{0,0},{0,0}}, /* INTRA */
+ {{1,1},{0,0}}, /* P_L0 */
+ {{0,0},{0,0}}, /* P_8x8 */
+ {{1,1},{0,0}}, /* P_SKIP */
+ {{0,0},{0,0}}, /* B_DIRECT */
+ {{1,1},{0,0}}, {{1,0},{0,1}}, {{1,1},{0,1}}, /* B_L0_* */
+ {{0,1},{1,0}}, {{0,0},{1,1}}, {{0,1},{1,1}}, /* B_L1_* */
+ {{1,1},{1,0}}, {{1,0},{1,1}}, {{1,1},{1,1}}, /* B_BI_* */
+ {{0,0},{0,0}}, /* B_8x8 */
+ {{0,0},{0,0}} /* B_SKIP */
};
#define IS_SUB4x4(type) ( (type ==D_L0_4x4)||(type ==D_L1_4x4)||(type ==D_BI_4x4))
enum mb_partition_e
{
/* sub partition type for P_8x8 and B_8x8 */
- D_L0_4x4 = 0,
- D_L0_8x4 = 1,
- D_L0_4x8 = 2,
- D_L0_8x8 = 3,
+ D_L0_4x4 = 0,
+ D_L0_8x4 = 1,
+ D_L0_4x8 = 2,
+ D_L0_8x8 = 3,
/* sub partition type for B_8x8 only */
- D_L1_4x4 = 4,
- D_L1_8x4 = 5,
- D_L1_4x8 = 6,
- D_L1_8x8 = 7,
+ D_L1_4x4 = 4,
+ D_L1_8x4 = 5,
+ D_L1_4x8 = 6,
+ D_L1_8x8 = 7,
- D_BI_4x4 = 8,
- D_BI_8x4 = 9,
- D_BI_4x8 = 10,
- D_BI_8x8 = 11,
- D_DIRECT_8x8 = 12,
+ D_BI_4x4 = 8,
+ D_BI_8x4 = 9,
+ D_BI_4x8 = 10,
+ D_BI_8x8 = 11,
+ D_DIRECT_8x8 = 12,
/* partition */
- D_8x8 = 13,
- D_16x8 = 14,
- D_8x16 = 15,
- D_16x16 = 16,
+ D_8x8 = 13,
+ D_16x8 = 14,
+ D_8x16 = 15,
+ D_16x16 = 16,
+ X264_PARTTYPE_MAX = 17,
};
-static const int x264_mb_partition_listX_table[2][17] =
+static const uint8_t x264_mb_partition_listX_table[2][17] =
{{
1, 1, 1, 1, /* D_L0_* */
0, 0, 0, 0, /* D_L1_* */
0, /* D_DIRECT_8x8 */
0, 0, 0, 0 /* 8x8 .. 16x16 */
}};
-static const int x264_mb_partition_count_table[17] =
+static const uint8_t x264_mb_partition_count_table[17] =
{
/* sub L0 */
4, 2, 2, 1,
/* Partition */
4, 2, 2, 1
};
+static const uint8_t x264_mb_partition_pixel_table[17] =
+{
+ PIXEL_4x4, PIXEL_8x4, PIXEL_4x8, PIXEL_8x8, /* D_L0_* */
+ PIXEL_4x4, PIXEL_8x4, PIXEL_4x8, PIXEL_8x8, /* D_L1_* */
+ PIXEL_4x4, PIXEL_8x4, PIXEL_4x8, PIXEL_8x8, /* D_BI_* */
+ PIXEL_8x8, /* D_DIRECT_8x8 */
+ PIXEL_8x8, PIXEL_16x8, PIXEL_8x16, PIXEL_16x16, /* 8x8 .. 16x16 */
+};
+
+/* zigzags are transposed with respect to the tables in the standard */
+static const uint8_t x264_zigzag_scan4[2][16] =
+{{ // frame
+ 0, 4, 1, 2, 5, 8, 12, 9, 6, 3, 7, 10, 13, 14, 11, 15
+},
+{ // field
+ 0, 1, 4, 2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
+}};
+static const uint8_t x264_zigzag_scan8[2][64] =
+{{
+ 0, 8, 1, 2, 9, 16, 24, 17, 10, 3, 4, 11, 18, 25, 32, 40,
+ 33, 26, 19, 12, 5, 6, 13, 20, 27, 34, 41, 48, 56, 49, 42, 35,
+ 28, 21, 14, 7, 15, 22, 29, 36, 43, 50, 57, 58, 51, 44, 37, 30,
+ 23, 31, 38, 45, 52, 59, 60, 53, 46, 39, 47, 54, 61, 62, 55, 63
+},
+{
+ 0, 1, 2, 8, 9, 3, 4, 10, 16, 11, 5, 6, 7, 12, 17, 24,
+ 18, 13, 14, 15, 19, 25, 32, 26, 20, 21, 22, 23, 27, 33, 40, 34,
+ 28, 29, 30, 31, 35, 41, 48, 42, 36, 37, 38, 39, 43, 49, 50, 44,
+ 45, 46, 47, 51, 56, 57, 52, 53, 54, 55, 58, 59, 60, 61, 62, 63
+}};
+
+static const uint8_t block_idx_x[16] =
+{
+ 0, 1, 0, 1, 2, 3, 2, 3, 0, 1, 0, 1, 2, 3, 2, 3
+};
+static const uint8_t block_idx_y[16] =
+{
+ 0, 0, 1, 1, 0, 0, 1, 1, 2, 2, 3, 3, 2, 2, 3, 3
+};
+static const uint8_t block_idx_xy[4][4] =
+{
+ { 0, 2, 8, 10 },
+ { 1, 3, 9, 11 },
+ { 4, 6, 12, 14 },
+ { 5, 7, 13, 15 }
+};
+static const uint8_t block_idx_xy_1d[16] =
+{
+ 0, 1, 4, 5, 2, 3, 6, 7, 8, 9, 12, 13, 10, 11, 14, 15
+};
+static const uint8_t block_idx_yx_1d[16] =
+{
+ 0, 4, 1, 5, 8, 12, 9, 13, 2, 6, 3, 7, 10, 14, 11, 15
+};
+static const uint8_t block_idx_xy_fenc[16] =
+{
+ 0*4 + 0*4*FENC_STRIDE, 1*4 + 0*4*FENC_STRIDE,
+ 0*4 + 1*4*FENC_STRIDE, 1*4 + 1*4*FENC_STRIDE,
+ 2*4 + 0*4*FENC_STRIDE, 3*4 + 0*4*FENC_STRIDE,
+ 2*4 + 1*4*FENC_STRIDE, 3*4 + 1*4*FENC_STRIDE,
+ 0*4 + 2*4*FENC_STRIDE, 1*4 + 2*4*FENC_STRIDE,
+ 0*4 + 3*4*FENC_STRIDE, 1*4 + 3*4*FENC_STRIDE,
+ 2*4 + 2*4*FENC_STRIDE, 3*4 + 2*4*FENC_STRIDE,
+ 2*4 + 3*4*FENC_STRIDE, 3*4 + 3*4*FENC_STRIDE
+};
+static const uint16_t block_idx_xy_fdec[16] =
+{
+ 0*4 + 0*4*FDEC_STRIDE, 1*4 + 0*4*FDEC_STRIDE,
+ 0*4 + 1*4*FDEC_STRIDE, 1*4 + 1*4*FDEC_STRIDE,
+ 2*4 + 0*4*FDEC_STRIDE, 3*4 + 0*4*FDEC_STRIDE,
+ 2*4 + 1*4*FDEC_STRIDE, 3*4 + 1*4*FDEC_STRIDE,
+ 0*4 + 2*4*FDEC_STRIDE, 1*4 + 2*4*FDEC_STRIDE,
+ 0*4 + 3*4*FDEC_STRIDE, 1*4 + 3*4*FDEC_STRIDE,
+ 2*4 + 2*4*FDEC_STRIDE, 3*4 + 2*4*FDEC_STRIDE,
+ 2*4 + 3*4*FDEC_STRIDE, 3*4 + 3*4*FDEC_STRIDE
+};
-void x264_macroblock_cache_init( x264_t *h );
-void x264_macroblock_cache_load( x264_t *h, int, int );
+#define QP(qP) ( (qP)+QP_BD_OFFSET )
+static const uint8_t i_chroma_qp_table[QP_MAX+1+12*2] =
+{
+ 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0,
+#if BIT_DEPTH > 9
+ QP(-12),QP(-11),QP(-10), QP(-9), QP(-8), QP(-7),
+#endif
+#if BIT_DEPTH > 8
+ QP(-6), QP(-5), QP(-4), QP(-3), QP(-2), QP(-1),
+#endif
+ QP(0), QP(1), QP(2), QP(3), QP(4), QP(5),
+ QP(6), QP(7), QP(8), QP(9), QP(10), QP(11),
+ QP(12), QP(13), QP(14), QP(15), QP(16), QP(17),
+ QP(18), QP(19), QP(20), QP(21), QP(22), QP(23),
+ QP(24), QP(25), QP(26), QP(27), QP(28), QP(29),
+ QP(29), QP(30), QP(31), QP(32), QP(32), QP(33),
+ QP(34), QP(34), QP(35), QP(35), QP(36), QP(36),
+ QP(37), QP(37), QP(37), QP(38), QP(38), QP(38),
+ QP(39), QP(39), QP(39), QP(39),
+ QP(39), QP(39), QP(39), QP(39), QP(39), QP(39),
+ QP(39), QP(39), QP(39), QP(39), QP(39), QP(39),
+};
+#undef QP
+
+enum cabac_ctx_block_cat_e
+{
+ DCT_LUMA_DC = 0,
+ DCT_LUMA_AC = 1,
+ DCT_LUMA_4x4 = 2,
+ DCT_CHROMA_DC = 3,
+ DCT_CHROMA_AC = 4,
+ DCT_LUMA_8x8 = 5,
+ DCT_CHROMAU_DC = 6,
+ DCT_CHROMAU_AC = 7,
+ DCT_CHROMAU_4x4 = 8,
+ DCT_CHROMAU_8x8 = 9,
+ DCT_CHROMAV_DC = 10,
+ DCT_CHROMAV_AC = 11,
+ DCT_CHROMAV_4x4 = 12,
+ DCT_CHROMAV_8x8 = 13,
+};
+
+static const uint8_t ctx_cat_plane[6][3] =
+{
+ { DCT_LUMA_DC, DCT_CHROMAU_DC, DCT_CHROMAV_DC},
+ { DCT_LUMA_AC, DCT_CHROMAU_AC, DCT_CHROMAV_AC},
+ {DCT_LUMA_4x4, DCT_CHROMAU_4x4, DCT_CHROMAV_4x4},
+ {0},
+ {0},
+ {DCT_LUMA_8x8, DCT_CHROMAU_8x8, DCT_CHROMAV_8x8}
+};
+
+/* Per-frame allocation: is allocated per-thread only in frame-threads mode. */
+int x264_macroblock_cache_allocate( x264_t *h );
+void x264_macroblock_cache_free( x264_t *h );
+
+/* Per-thread allocation: is allocated per-thread even in sliced-threads mode. */
+int x264_macroblock_thread_allocate( x264_t *h, int b_lookahead );
+void x264_macroblock_thread_free( x264_t *h, int b_lookahead );
+
+void x264_macroblock_slice_init( x264_t *h );
+void x264_macroblock_thread_init( x264_t *h );
+void x264_macroblock_cache_load_progressive( x264_t *h, int mb_x, int mb_y );
+void x264_macroblock_cache_load_interlaced( x264_t *h, int mb_x, int mb_y );
+void x264_macroblock_deblock_strength( x264_t *h );
void x264_macroblock_cache_save( x264_t *h );
-void x264_macroblock_cache_end( x264_t *h );
-void x264_macroblock_direct_ref_save( x264_t *h );
+void x264_macroblock_bipred_init( x264_t *h );
+
+void x264_prefetch_fenc( x264_t *h, x264_frame_t *fenc, int i_mb_x, int i_mb_y );
-void x264_mb_dequant_4x4_dc( int16_t dct[4][4], int i_qscale );
-void x264_mb_dequant_2x2_dc( int16_t dct[2][2], int i_qscale );
-void x264_mb_dequant_4x4( int16_t dct[4][4], int i_qscale );
+void x264_copy_column8( pixel *dst, pixel *src );
/* x264_mb_predict_mv_16x16:
* set mvp with predicted mv for D_16x16 block
* h->mb. need only valid values from other blocks */
-void x264_mb_predict_mv_16x16( x264_t *h, int i_list, int i_ref, int mvp[2] );
+void x264_mb_predict_mv_16x16( x264_t *h, int i_list, int i_ref, int16_t mvp[2] );
/* x264_mb_predict_mv_pskip:
* set mvp with predicted mv for P_SKIP
* h->mb. need only valid values from other blocks */
-void x264_mb_predict_mv_pskip( x264_t *h, int mv[2] );
+void x264_mb_predict_mv_pskip( x264_t *h, int16_t mv[2] );
/* x264_mb_predict_mv:
* set mvp with predicted mv for all blocks except SKIP and DIRECT
* h->mb. need valid ref/partition/sub of current block to be valid
- * and valid mv/ref from other blocks . */
-void x264_mb_predict_mv( x264_t *h, int i_list, int idx, int i_width, int mvp[2] );
+ * and valid mv/ref from other blocks. */
+void x264_mb_predict_mv( x264_t *h, int i_list, int idx, int i_width, int16_t mvp[2] );
/* x264_mb_predict_mv_direct16x16:
* set h->mb.cache.mv and h->mb.cache.ref for B_SKIP or B_DIRECT
- * h->mb. need only valid values from other blocks
- * return 1 on success, 0 on failure */
-int x264_mb_predict_mv_direct16x16( x264_t *h );
-/* x264_mb_load_mv_direct8x8:
- * set h->mb.cache.mv and h->mb.cache.ref for B_DIRECT
- * must be called only after x264_mb_predict_mv_direct16x16 */
-void x264_mb_load_mv_direct8x8( x264_t *h, int idx );
+ * h->mb. need only valid values from other blocks.
+ * return 1 on success, 0 on failure.
+ * if b_changed != NULL, set it to whether refs or mvs differ from
+ * before this functioncall. */
+int x264_mb_predict_mv_direct16x16( x264_t *h, int *b_changed );
/* x264_mb_predict_mv_ref16x16:
* set mvc with D_16x16 prediction.
* uses all neighbors, even those that didn't end up using this ref.
* h->mb. need only valid values from other blocks */
-void x264_mb_predict_mv_ref16x16( x264_t *h, int i_list, int i_ref, int mvc[4][2], int *i_mvc );
+void x264_mb_predict_mv_ref16x16( x264_t *h, int i_list, int i_ref, int16_t mvc[8][2], int *i_mvc );
+void x264_mb_mc( x264_t *h );
+void x264_mb_mc_8x8( x264_t *h, int i8 );
-int x264_mb_predict_intra4x4_mode( x264_t *h, int idx );
-int x264_mb_predict_non_zero_code( x264_t *h, int idx );
+static ALWAYS_INLINE uint32_t pack16to32( uint32_t a, uint32_t b )
+{
+#if WORDS_BIGENDIAN
+ return b + (a<<16);
+#else
+ return a + (b<<16);
+#endif
+}
+static ALWAYS_INLINE uint32_t pack8to16( uint32_t a, uint32_t b )
+{
+#if WORDS_BIGENDIAN
+ return b + (a<<8);
+#else
+ return a + (b<<8);
+#endif
+}
+static ALWAYS_INLINE uint32_t pack8to32( uint32_t a, uint32_t b, uint32_t c, uint32_t d )
+{
+#if WORDS_BIGENDIAN
+ return d + (c<<8) + (b<<16) + (a<<24);
+#else
+ return a + (b<<8) + (c<<16) + (d<<24);
+#endif
+}
+static ALWAYS_INLINE uint32_t pack16to32_mask( int a, int b )
+{
+#if WORDS_BIGENDIAN
+ return (b&0xFFFF) + (a<<16);
+#else
+ return (a&0xFFFF) + (b<<16);
+#endif
+}
+static ALWAYS_INLINE uint64_t pack32to64( uint32_t a, uint32_t b )
+{
+#if WORDS_BIGENDIAN
+ return b + ((uint64_t)a<<32);
+#else
+ return a + ((uint64_t)b<<32);
+#endif
+}
-void x264_mb_encode_i4x4( x264_t *h, int idx, int i_qscale );
+#if HIGH_BIT_DEPTH
+# define pack_pixel_1to2 pack16to32
+# define pack_pixel_2to4 pack32to64
+#else
+# define pack_pixel_1to2 pack8to16
+# define pack_pixel_2to4 pack16to32
+#endif
-void x264_mb_mc( x264_t *h );
+static ALWAYS_INLINE int x264_mb_predict_intra4x4_mode( x264_t *h, int idx )
+{
+ const int ma = h->mb.cache.intra4x4_pred_mode[x264_scan8[idx] - 1];
+ const int mb = h->mb.cache.intra4x4_pred_mode[x264_scan8[idx] - 8];
+ const int m = X264_MIN( x264_mb_pred_mode4x4_fix(ma),
+ x264_mb_pred_mode4x4_fix(mb) );
+ if( m < 0 )
+ return I_PRED_4x4_DC;
-static inline void x264_macroblock_cache_ref( x264_t *h, int x, int y, int width, int height, int i_list, int ref )
-{
- int dy, dx;
- for( dy = 0; dy < height; dy++ )
- {
- for( dx = 0; dx < width; dx++ )
- {
- h->mb.cache.ref[i_list][X264_SCAN8_0+x+dx+8*(y+dy)] = ref;
- }
- }
+ return m;
}
-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 )
-{
- int dy, dx;
- for( dy = 0; dy < height; dy++ )
- {
- for( dx = 0; dx < width; dx++ )
- {
- h->mb.cache.mv[i_list][X264_SCAN8_0+x+dx+8*(y+dy)][0] = mvx;
- h->mb.cache.mv[i_list][X264_SCAN8_0+x+dx+8*(y+dy)][1] = mvy;
- }
- }
-}
-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 )
-{
- int dy, dx;
- for( dy = 0; dy < height; dy++ )
- {
- for( dx = 0; dx < width; dx++ )
- {
- h->mb.cache.mvd[i_list][X264_SCAN8_0+x+dx+8*(y+dy)][0] = mdx;
- h->mb.cache.mvd[i_list][X264_SCAN8_0+x+dx+8*(y+dy)][1] = mdy;
- }
- }
+static ALWAYS_INLINE int x264_mb_predict_non_zero_code( x264_t *h, int idx )
+{
+ const int za = h->mb.cache.non_zero_count[x264_scan8[idx] - 1];
+ const int zb = h->mb.cache.non_zero_count[x264_scan8[idx] - 8];
+
+ int i_ret = za + zb;
+
+ if( i_ret < 0x80 )
+ i_ret = ( i_ret + 1 ) >> 1;
+ return i_ret & 0x7f;
}
-static inline void x264_macroblock_cache_skip( x264_t *h, int x, int y, int width, int height, int b_skip )
-{
- int dy, dx;
- for( dy = 0; dy < height; dy++ )
- {
- for( dx = 0; dx < width; dx++ )
- {
- h->mb.cache.skip[X264_SCAN8_0+x+dx+8*(y+dy)] = b_skip;
- }
- }
+
+/* intra and skip are disallowed, p8x8 is conditional. */
+static const uint8_t x264_transform_allowed[X264_MBTYPE_MAX] =
+{
+ 0,0,0,0,1,2,0,1,1,1,1,1,1,1,1,1,1,1,0
+};
+
+/* x264_mb_transform_8x8_allowed:
+ * check whether any partition is smaller than 8x8 (or at least
+ * might be, according to just partition type.)
+ * doesn't check for cbp */
+static ALWAYS_INLINE int x264_mb_transform_8x8_allowed( x264_t *h )
+{
+ if( !h->pps->b_transform_8x8_mode )
+ return 0;
+ if( h->mb.i_type != P_8x8 )
+ return x264_transform_allowed[h->mb.i_type];
+ return M32( h->mb.i_sub_partition ) == D_L0_8x8*0x01010101;
}
#endif
projects / x264 / blobdiff