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 */, int line_size, int h);
37 
38 typedef struct MECmpContext {
39  int (*sum_abs_dctelem)(int16_t *block /* align 16 */);
40 
41  me_cmp_func sad[6]; /* identical to pix_absAxA except additional void * */
53 
58  me_cmp_func ildct_cmp[6]; // only width 16 used
59  me_cmp_func frame_skip_cmp[6]; // only width 8 used
60 
62 } MECmpContext;
63 
64 void ff_me_cmp_init_static(void);
65 
70 
71 void ff_set_cmp(MECmpContext *c, me_cmp_func *cmp, int type);
72 
73 #endif /* AVCODEC_ME_CMP_H */
me_cmp_func frame_skip_cmp[6]
Definition: me_cmp.h:59
me_cmp_func dct_max[6]
Definition: me_cmp.h:51
void ff_me_cmp_init_ppc(MECmpContext *c, AVCodecContext *avctx)
Definition: me_cmp.c:747
me_cmp_func me_pre_cmp[6]
Definition: me_cmp.h:54
me_cmp_func dct_sad[6]
Definition: me_cmp.h:44
me_cmp_func hadamard8_diff[6]
Definition: me_cmp.h:43
uint8_t
void ff_me_cmp_init_static(void)
Definition: me_cmp.c:885
me_cmp_func mb_cmp[6]
Definition: me_cmp.h:57
me_cmp_func dct264_sad[6]
Definition: me_cmp.h:52
me_cmp_func nsse[6]
Definition: me_cmp.h:50
me_cmp_func pix_abs[2][4]
Definition: me_cmp.h:61
me_cmp_func bit[6]
Definition: me_cmp.h:46
void ff_me_cmp_init(MECmpContext *c, AVCodecContext *avctx)
Definition: me_cmp.c:893
me_cmp_func vsse[6]
Definition: me_cmp.h:49
me_cmp_func vsad[6]
Definition: me_cmp.h:48
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:255
void ff_set_cmp(MECmpContext *c, me_cmp_func *cmp, int type)
Definition: me_cmp.c:363
me_cmp_func rd[6]
Definition: me_cmp.h:47
Libavcodec external API header.
main external API structure.
Definition: avcodec.h:1050
me_cmp_func me_cmp[6]
Definition: me_cmp.h:55
me_cmp_func sad[6]
Definition: me_cmp.h:41
me_cmp_func sse[6]
Definition: me_cmp.h:42
MpegEncContext.
Definition: mpegvideo.h:204
me_cmp_func me_sub_cmp[6]
Definition: me_cmp.h:56
void ff_me_cmp_init_arm(MECmpContext *c, AVCodecContext *avctx)
int(* me_cmp_func)(struct MpegEncContext *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
Definition: me_cmp.h:34
int(* sum_abs_dctelem)(int16_t *block)
Definition: me_cmp.h:39
me_cmp_func quant_psnr[6]
Definition: me_cmp.h:45
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:58
static int16_t block[64]
Definition: dct-test.c:88