Libav
me_cmp.h
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1 /*
2  * This file is part of Libav.
3  *
4  * Libav is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * Libav is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with Libav; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef AVCODEC_ME_CMP_H
20 #define AVCODEC_ME_CMP_H
21 
22 #include <stdint.h>
23 
24 #include "avcodec.h"
25 
26 extern uint32_t ff_square_tab[512];
27 
28 struct MpegEncContext;
29 /* Motion estimation:
30  * h is limited to { width / 2, width, 2 * width },
31  * but never larger than 16 and never smaller than 2.
32  * Although currently h < 4 is not used as functions with
33  * width < 8 are neither used nor implemented. */
34 typedef int (*me_cmp_func)(struct MpegEncContext *c,
35  uint8_t *blk1 /* align width (8 or 16) */,
36  uint8_t *blk2 /* align 1 */, ptrdiff_t stride,
37  int h);
38 
39 typedef struct MECmpContext {
40  int (*sum_abs_dctelem)(int16_t *block /* align 16 */);
41 
42  me_cmp_func sad[6]; /* identical to pix_absAxA except additional void * */
54 
59  me_cmp_func ildct_cmp[6]; // only width 16 used
60  me_cmp_func frame_skip_cmp[6]; // only width 8 used
61 
63 } MECmpContext;
64 
65 void ff_me_cmp_init_static(void);
66 
71 
72 void ff_set_cmp(MECmpContext *c, me_cmp_func *cmp, int type);
73 
74 #endif /* AVCODEC_ME_CMP_H */
me_cmp_func frame_skip_cmp[6]
Definition: me_cmp.h:60
int(* sum_abs_dctelem)(int16_t *block)
Definition: me_cmp.h:40
me_cmp_func dct_max[6]
Definition: me_cmp.h:52
void ff_me_cmp_init_ppc(MECmpContext *c, AVCodecContext *avctx)
Definition: me_cmp.c:747
int stride
Definition: mace.c:144
me_cmp_func me_pre_cmp[6]
Definition: me_cmp.h:55
me_cmp_func dct_sad[6]
Definition: me_cmp.h:45
me_cmp_func hadamard8_diff[6]
Definition: me_cmp.h:44
static int16_t block[64]
Definition: dct.c:97
uint8_t
void ff_me_cmp_init_static(void)
Definition: me_cmp.c:887
me_cmp_func mb_cmp[6]
Definition: me_cmp.h:58
me_cmp_func dct264_sad[6]
Definition: me_cmp.h:53
me_cmp_func nsse[6]
Definition: me_cmp.h:51
int(* me_cmp_func)(struct MpegEncContext *c, uint8_t *blk1, uint8_t *blk2, ptrdiff_t stride, int h)
Definition: me_cmp.h:34
me_cmp_func pix_abs[2][4]
Definition: me_cmp.h:62
me_cmp_func bit[6]
Definition: me_cmp.h:47
void ff_me_cmp_init(MECmpContext *c, AVCodecContext *avctx)
Definition: me_cmp.c:895
me_cmp_func vsse[6]
Definition: me_cmp.h:50
me_cmp_func vsad[6]
Definition: me_cmp.h:49
static av_always_inline int cmp(MpegEncContext *s, const int x, const int y, const int subx, const int suby, const int size, const int h, int ref_index, int src_index, me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags)
compares a block (either a full macroblock or a partition thereof) against a proposed motion-compensa...
Definition: motion_est.c:257
void ff_set_cmp(MECmpContext *c, me_cmp_func *cmp, int type)
Definition: me_cmp.c:365
me_cmp_func rd[6]
Definition: me_cmp.h:48
Libavcodec external API header.
main external API structure.
Definition: avcodec.h:1409
me_cmp_func me_cmp[6]
Definition: me_cmp.h:56
me_cmp_func sad[6]
Definition: me_cmp.h:42
me_cmp_func sse[6]
Definition: me_cmp.h:43
MpegEncContext.
Definition: mpegvideo.h:76
me_cmp_func me_sub_cmp[6]
Definition: me_cmp.h:57
void ff_me_cmp_init_arm(MECmpContext *c, AVCodecContext *avctx)
me_cmp_func quant_psnr[6]
Definition: me_cmp.h:46
uint32_t ff_square_tab[512]
Definition: me_cmp.c:27
void ff_me_cmp_init_x86(MECmpContext *c, AVCodecContext *avctx)
me_cmp_func ildct_cmp[6]
Definition: me_cmp.h:59