aboutsummaryrefslogtreecommitdiffstats
path: root/libavcodec/riscv/h264dsp_init.c
blob: b99c0124ee51ab2cde869f3be3e326de8ce069b5 (plain) (blame)
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
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
/*
 * Copyright (c) 2024 J. Dekker <jdek@itanimul.li>
 * Copyright © 2024 Rémi Denis-Courmont.
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include "config.h"

#include <stdint.h>
#include <string.h>

#include "libavutil/attributes.h"
#include "libavutil/cpu.h"
#include "libavutil/riscv/cpu.h"
#include "libavcodec/h264dsp.h"

extern const struct {
    const h264_weight_func weight;
    const h264_biweight_func biweight;
} ff_h264_weight_funcs_8_rvv[];

void ff_h264_v_loop_filter_luma_8_rvv(uint8_t *pix, ptrdiff_t stride,
                                      int alpha, int beta, int8_t *tc0);
void ff_h264_h_loop_filter_luma_8_rvv(uint8_t *pix, ptrdiff_t stride,
                                      int alpha, int beta, int8_t *tc0);
void ff_h264_h_loop_filter_luma_mbaff_8_rvv(uint8_t *pix, ptrdiff_t stride,
                                            int alpha, int beta, int8_t *tc0);

#define IDCT_DEPTH(depth) \
void ff_h264_idct_add_##depth##_rvv(uint8_t *d, int16_t *s, int stride); \
void ff_h264_idct8_add_##depth##_rvv(uint8_t *d, int16_t *s, int stride); \
void ff_h264_idct4_dc_add_##depth##_rvv(uint8_t *, int16_t *, int); \
void ff_h264_idct8_dc_add_##depth##_rvv(uint8_t *, int16_t *, int); \
void ff_h264_idct_add16_##depth##_rvv(uint8_t *d, const int *soffset, \
                                      int16_t *s, int stride, \
                                      const uint8_t nnzc[5 * 8]); \
void ff_h264_idct_add16intra_##depth##_rvv(uint8_t *d, const int *soffset, \
                                   int16_t *s, int stride, \
                                   const uint8_t nnzc[5 * 8]); \
void ff_h264_idct8_add4_##depth##_rvv(uint8_t *d, const int *soffset, \
                                      int16_t *s, int stride, \
                                      const uint8_t nnzc[5 * 8]); \
void ff_h264_idct4_add8_##depth##_rvv(uint8_t **d, const int *soffset, \
                                      int16_t *s, int stride, \
                                      const uint8_t nnzc[5 * 8]); \
void ff_h264_idct4_add8_422_##depth##_rvv(uint8_t **d, const int *soffset, \
                                          int16_t *s, int stride, \
                                          const uint8_t nnzc[5 * 8]);

IDCT_DEPTH(8)
IDCT_DEPTH(9)
IDCT_DEPTH(10)
IDCT_DEPTH(12)
IDCT_DEPTH(14)
#undef IDCT_DEPTH

void ff_h264_add_pixels8_8_rvv(uint8_t *dst, int16_t *block, int stride);
void ff_h264_add_pixels4_8_rvv(uint8_t *dst, int16_t *block, int stride);
void ff_h264_add_pixels8_16_rvv(uint8_t *dst, int16_t *block, int stride);
void ff_h264_add_pixels4_16_rvv(uint8_t *dst, int16_t *block, int stride);

extern int ff_startcode_find_candidate_rvb(const uint8_t *, int);
extern int ff_startcode_find_candidate_rvv(const uint8_t *, int);

av_cold void ff_h264dsp_init_riscv(H264DSPContext *dsp, const int bit_depth,
                                   const int chroma_format_idc)
{
#if HAVE_RV
    int flags = av_get_cpu_flags();

    if (flags & AV_CPU_FLAG_RVB_BASIC)
        dsp->startcode_find_candidate = ff_startcode_find_candidate_rvb;
# if HAVE_RVV
    if (flags & AV_CPU_FLAG_RVV_I32) {
        const bool zvl128b = ff_rv_vlen_least(128);

        if (bit_depth == 8 && zvl128b) {
            for (int i = 0; i < 4; i++) {
                dsp->weight_h264_pixels_tab[i] =
                    ff_h264_weight_funcs_8_rvv[i].weight;
                dsp->biweight_h264_pixels_tab[i] =
                    ff_h264_weight_funcs_8_rvv[i].biweight;
            }

            dsp->h264_v_loop_filter_luma = ff_h264_v_loop_filter_luma_8_rvv;
            dsp->h264_h_loop_filter_luma = ff_h264_h_loop_filter_luma_8_rvv;
            dsp->h264_h_loop_filter_luma_mbaff =
                ff_h264_h_loop_filter_luma_mbaff_8_rvv;

            dsp->h264_idct_add  = ff_h264_idct_add_8_rvv;
            dsp->h264_idct8_add = ff_h264_idct8_add_8_rvv;
            if (flags & AV_CPU_FLAG_RVB) {
                dsp->h264_idct_dc_add     = ff_h264_idct4_dc_add_8_rvv;
                dsp->h264_idct_add16      = ff_h264_idct_add16_8_rvv;
                dsp->h264_idct_add16intra = ff_h264_idct_add16intra_8_rvv;
#  if __riscv_xlen == 64
                dsp->h264_idct8_add4      = ff_h264_idct8_add4_8_rvv;
                if (chroma_format_idc <= 1)
                    dsp->h264_idct_add8   = ff_h264_idct4_add8_8_rvv;
                else
                    dsp->h264_idct_add8   = ff_h264_idct4_add8_422_8_rvv;
#  endif
            }
            if (flags & AV_CPU_FLAG_RVV_I64) {
                dsp->h264_add_pixels8_clear = ff_h264_add_pixels8_8_rvv;
                if (flags & AV_CPU_FLAG_RVB)
                    dsp->h264_idct8_dc_add = ff_h264_idct8_dc_add_8_rvv;
            }
            dsp->h264_add_pixels4_clear = ff_h264_add_pixels4_8_rvv;
        }

#define IDCT_DEPTH(depth) \
        if (bit_depth == depth) { \
            if (zvl128b) \
                dsp->h264_idct_add = ff_h264_idct_add_##depth##_rvv; \
            if (flags & AV_CPU_FLAG_RVB) \
                dsp->h264_idct8_add = ff_h264_idct8_add_##depth##_rvv; \
            if (zvl128b && (flags & AV_CPU_FLAG_RVB)) { \
                dsp->h264_idct_dc_add  = ff_h264_idct4_dc_add_##depth##_rvv; \
                dsp->h264_idct8_dc_add = ff_h264_idct8_dc_add_##depth##_rvv; \
                dsp->h264_idct_add16 = ff_h264_idct_add16_##depth##_rvv; \
                dsp->h264_idct_add16intra = \
                    ff_h264_idct_add16intra_##depth##_rvv; \
                if (__riscv_xlen == 64) { \
                    if (chroma_format_idc <= 1) \
                        dsp->h264_idct_add8 = \
                            ff_h264_idct4_add8_##depth##_rvv; \
                    else \
                        dsp->h264_idct_add8 = \
                            ff_h264_idct4_add8_422_##depth##_rvv; \
                } \
            } \
            if (__riscv_xlen == 64 && (flags & AV_CPU_FLAG_RVB)) \
                dsp->h264_idct8_add4 = ff_h264_idct8_add4_##depth##_rvv; \
        }

        IDCT_DEPTH(9)
        IDCT_DEPTH(10)
        IDCT_DEPTH(12)
        IDCT_DEPTH(14)

        if (bit_depth > 8 && zvl128b) {
            dsp->h264_add_pixels8_clear = ff_h264_add_pixels8_16_rvv;
            if (flags & AV_CPU_FLAG_RVV_I64)
                dsp->h264_add_pixels4_clear = ff_h264_add_pixels4_16_rvv;
        }

        dsp->startcode_find_candidate = ff_startcode_find_candidate_rvv;
    }
# endif
#endif
}