f244cbd5
 Hu Chunming
ffmpeg支持h264编码
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
/*****************************************************************************
* mc-a-sve.S: aarch64 motion compensation
*****************************************************************************
* Copyright (C) 2009-2024 x264 project
*
* Authors: David Chen <david.chen@myais.com.cn>
*
* 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
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* 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., 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.
*****************************************************************************/
#include "asm.S"
#include "mc-a-common.S"
.arch armv8-a+sve
#if BIT_DEPTH == 8
// void pixel_avg( uint8_t *dst, intptr_t dst_stride,
// uint8_t *src1, intptr_t src1_stride,
// uint8_t *src2, intptr_t src2_stride, int weight );
.macro AVGH_SVE w h
function pixel_avg_\w\()x\h\()_sve, export=1
mov w10, #64
cmp w6, #32
mov w9, #\h
b.eq pixel_avg_w\w\()_neon
subs w7, w10, w6
b.lt pixel_avg_weight_w\w\()_add_sub_sve // weight > 64
cmp w6, #0
b.ge pixel_avg_weight_w\w\()_add_add_sve
b pixel_avg_weight_w\w\()_sub_add_sve // weight < 0
endfunc
.endm
AVGH_SVE 4, 2
AVGH_SVE 4, 4
AVGH_SVE 4, 8
AVGH_SVE 4, 16
// 0 < weight < 64
.macro weight_add_add_sve dst, s1, s2, h=
mul \dst, \s1, v30.8h
mla \dst, \s2, v31.8h
.endm
// weight > 64
.macro weight_add_sub_sve dst, s1, s2, h=
mul \dst, \s1, v30.8h
mls \dst, \s2, v31.8h
.endm
// weight < 0
.macro weight_sub_add_sve dst, s1, s2, h=
mul \dst, \s2, v31.8h
mls \dst, \s1, v30.8h
.endm
.macro AVG_WEIGHT_SVE ext
function pixel_avg_weight_w4_\ext\()_sve
load_weights_\ext
ptrue p0.b, vl8
dup v30.8h, w6
dup v31.8h, w7
1: // height loop
subs w9, w9, #2
ld1b {z0.h}, p0/z, [x2]
add x2, x2, x3
ld1b {z1.h}, p0/z, [x4]
add x4, x4, x5
weight_\ext\()_sve v4.8h, v0.8h, v1.8h
ld1b {z2.h}, p0/z, [x2]
add x2, x2, x3
ld1b {z3.h}, p0/z, [x4]
add x4, x4, x5
sqrshrun v0.8b, v4.8h, #6
weight_\ext\()_sve v5.8h, v2.8h, v3.8h
st1 {v0.s}[0], [x0], x1
sqrshrun v1.8b, v5.8h, #6
st1 {v1.s}[0], [x0], x1
b.gt 1b
ret
endfunc
.endm
AVG_WEIGHT_SVE add_add
AVG_WEIGHT_SVE add_sub
AVG_WEIGHT_SVE sub_add
#else // BIT_DEPTH == 10
#endif
|
