1 /*****************************************************************************
2 * mc.h: h264 encoder library (Motion Compensation)
3 *****************************************************************************
4 * Copyright (C) 2004-2008 Loren Merritt <lorenm@u.washington.edu>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
19 *****************************************************************************/
25 * XXX: Only width = 4, 8 or 16 are valid
26 * width == 4 -> height == 4 or 8
27 * width == 8 -> height == 4 or 8 or 16
28 * width == 16-> height == 8 or 16
33 void (*mc_luma
)(uint8_t *dst
, int i_dst
, uint8_t **src
, int i_src
,
35 int i_width
, int i_height
);
37 /* may round up the dimensions if they're not a power of 2 */
38 uint8_t* (*get_ref
)(uint8_t *dst
, int *i_dst
, uint8_t **src
, int i_src
,
40 int i_width
, int i_height
);
42 /* mc_chroma may write up to 2 bytes of garbage to the right of dst,
43 * so it must be run from left to right. */
44 void (*mc_chroma
)(uint8_t *dst
, int i_dst
, uint8_t *src
, int i_src
,
46 int i_width
, int i_height
);
48 void (*avg
[10])( uint8_t *dst
, int, uint8_t *src1
, int, uint8_t *src2
, int, int i_weight
);
50 /* only 16x16, 8x8, and 4x4 defined */
51 void (*copy
[7])( uint8_t *dst
, int, uint8_t *src
, int, int i_height
);
52 void (*copy_16x16_unaligned
)( uint8_t *dst
, int, uint8_t *src
, int, int i_height
);
54 void (*plane_copy
)( uint8_t *dst
, int i_dst
,
55 uint8_t *src
, int i_src
, int w
, int h
);
57 void (*hpel_filter
)( uint8_t *dsth
, uint8_t *dstv
, uint8_t *dstc
, uint8_t *src
,
58 int i_stride
, int i_width
, int i_height
);
60 /* prefetch the next few macroblocks of fenc or fdec */
61 void (*prefetch_fenc
)( uint8_t *pix_y
, int stride_y
,
62 uint8_t *pix_uv
, int stride_uv
, int mb_x
);
63 /* prefetch the next few macroblocks of a hpel reference frame */
64 void (*prefetch_ref
)( uint8_t *pix
, int stride
, int parity
);
66 void *(*memcpy_aligned
)( void *dst
, const void *src
, size_t n
);
67 void (*memzero_aligned
)( void *dst
, int n
);
69 void (*frame_init_lowres_core
)( uint8_t *src0
, uint8_t *dst0
, uint8_t *dsth
, uint8_t *dstv
, uint8_t *dstc
,
70 int src_stride
, int dst_stride
, int width
, int height
);
71 } x264_mc_functions_t
;
73 void x264_mc_init( int cpu
, x264_mc_functions_t
*pf
);