aboutsummaryrefslogtreecommitdiffstats
path: root/tests/checkasm/aacpsdsp.c
blob: 2ceef4341f3541b9c1a43089023cb82be95f334c (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
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
/*
 * This file is part of FFmpeg.
 *
 * FFmpeg 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.
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU 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 "libavcodec/aacpsdsp.h"
#include "libavutil/intfloat.h"

#include "checkasm.h"

#define N 32
#define STRIDE 128
#define BUF_SIZE (N * STRIDE)

#define randomize(buf, len) do {                                \
    int i;                                                      \
    for (i = 0; i < len; i++) {                                 \
        const INTFLOAT f = (INTFLOAT)rnd() / UINT_MAX;          \
        (buf)[i] = f;                                           \
    }                                                           \
} while (0)

#define EPS 0.005

static void clear_less_significant_bits(INTFLOAT *buf, int len, int bits)
{
    int i;
    for (i = 0; i < len; i++) {
        union av_intfloat32 u = { .f = buf[i] };
        u.i &= (0xffffffff << bits);
        buf[i] = u.f;
    }
}

static void test_add_squares(void)
{
    LOCAL_ALIGNED_16(INTFLOAT, dst0, [BUF_SIZE]);
    LOCAL_ALIGNED_16(INTFLOAT, dst1, [BUF_SIZE]);
    LOCAL_ALIGNED_16(INTFLOAT, src, [BUF_SIZE], [2]);

    declare_func(void, INTFLOAT *dst,
                 const INTFLOAT (*src)[2], int n);

    randomize((INTFLOAT *)src, BUF_SIZE * 2);
    randomize(dst0, BUF_SIZE);
    memcpy(dst1, dst0, BUF_SIZE * sizeof(INTFLOAT));
    call_ref(dst0, src, BUF_SIZE);
    call_new(dst1, src, BUF_SIZE);
    if (!float_near_abs_eps_array(dst0, dst1, EPS, BUF_SIZE))
        fail();
    bench_new(dst1, src, BUF_SIZE);
}

static void test_mul_pair_single(void)
{
    LOCAL_ALIGNED_16(INTFLOAT, dst0, [BUF_SIZE], [2]);
    LOCAL_ALIGNED_16(INTFLOAT, dst1, [BUF_SIZE], [2]);
    LOCAL_ALIGNED_16(INTFLOAT, src0, [BUF_SIZE], [2]);
    LOCAL_ALIGNED_16(INTFLOAT, src1, [BUF_SIZE]);

    declare_func(void, INTFLOAT (*dst)[2],
                       INTFLOAT (*src0)[2], INTFLOAT *src1, int n);

    randomize((INTFLOAT *)src0, BUF_SIZE * 2);
    randomize(src1, BUF_SIZE);
    call_ref(dst0, src0, src1, BUF_SIZE);
    call_new(dst1, src0, src1, BUF_SIZE);
    if (!float_near_abs_eps_array((float *)dst0, (float *)dst1, EPS, BUF_SIZE * 2))
        fail();
    bench_new(dst1, src0, src1, BUF_SIZE);
}

static void test_hybrid_analysis(void)
{
    LOCAL_ALIGNED_16(INTFLOAT, dst0, [BUF_SIZE], [2]);
    LOCAL_ALIGNED_16(INTFLOAT, dst1, [BUF_SIZE], [2]);
    LOCAL_ALIGNED_16(INTFLOAT, in, [13], [2]);
    LOCAL_ALIGNED_16(INTFLOAT, filter, [N], [8][2]);

    declare_func(void, INTFLOAT (*out)[2], INTFLOAT (*in)[2],
                 const INTFLOAT (*filter)[8][2],
                 ptrdiff_t stride, int n);

    randomize((INTFLOAT *)in, 13 * 2);
    randomize((INTFLOAT *)filter, N * 8 * 2);

    randomize((INTFLOAT *)dst0, BUF_SIZE * 2);
    memcpy(dst1, dst0, BUF_SIZE * 2 * sizeof(INTFLOAT));

    call_ref(dst0, in, filter, STRIDE, N);
    call_new(dst1, in, filter, STRIDE, N);

    if (!float_near_abs_eps_array((float *)dst0, (float *)dst1, EPS, BUF_SIZE * 2))
        fail();
    bench_new(dst1, in, filter, STRIDE, N);
}

static void test_hybrid_analysis_ileave(void)
{
    LOCAL_ALIGNED_16(INTFLOAT, in,   [2], [38][64]);
    LOCAL_ALIGNED_16(INTFLOAT, out0, [91], [32][2]);
    LOCAL_ALIGNED_16(INTFLOAT, out1, [91], [32][2]);

    declare_func(void, INTFLOAT (*out)[32][2], INTFLOAT L[2][38][64],
                       int i, int len);

    randomize((INTFLOAT *)out0, 91 * 32 * 2);
    randomize((INTFLOAT *)in,    2 * 38 * 64);
    memcpy(out1, out0, 91 * 32 * 2 * sizeof(INTFLOAT));

    /* len is hardcoded to 32 as that's the only value used in
       libavcodec. asm functions are likely to be optimized
       hardcoding this value in their loops and could fail with
       anything else.
       i is hardcoded to the two values currently used by the
       aac decoder because the arm neon implementation is
       micro-optimized for them and will fail for almost every
       other value. */
    call_ref(out0, in, 3, 32);
    call_new(out1, in, 3, 32);

    /* the function just moves data around, so memcmp is enough */
    if (memcmp(out0, out1, 91 * 32 * 2 * sizeof(INTFLOAT)))
        fail();

    call_ref(out0, in, 5, 32);
    call_new(out1, in, 5, 32);

    if (memcmp(out0, out1, 91 * 32 * 2 * sizeof(INTFLOAT)))
        fail();

    bench_new(out1, in, 3, 32);
}

static void test_hybrid_synthesis_deint(void)
{
    LOCAL_ALIGNED_16(INTFLOAT, out0, [2], [38][64]);
    LOCAL_ALIGNED_16(INTFLOAT, out1, [2], [38][64]);
    LOCAL_ALIGNED_16(INTFLOAT, in,  [91], [32][2]);

    declare_func(void, INTFLOAT out[2][38][64], INTFLOAT (*in)[32][2],
                       int i, int len);

    randomize((INTFLOAT *)in,  91 * 32 * 2);
    randomize((INTFLOAT *)out0, 2 * 38 * 64);
    memcpy(out1, out0, 2 * 38 * 64 * sizeof(INTFLOAT));

    /* len is hardcoded to 32 as that's the only value used in
       libavcodec. asm functions are likely to be optimized
       hardcoding this value in their loops and could fail with
       anything else.
       i is hardcoded to the two values currently used by the
       aac decoder because the arm neon implementation is
       micro-optimized for them and will fail for almost every
       other value. */
    call_ref(out0, in, 3, 32);
    call_new(out1, in, 3, 32);

    /* the function just moves data around, so memcmp is enough */
    if (memcmp(out0, out1, 2 * 38 * 64 * sizeof(INTFLOAT)))
        fail();

    call_ref(out0, in, 5, 32);
    call_new(out1, in, 5, 32);

    if (memcmp(out0, out1, 2 * 38 * 64 * sizeof(INTFLOAT)))
        fail();

    bench_new(out1, in, 3, 32);
}

static void test_stereo_interpolate(PSDSPContext *psdsp)
{
    int i;
    LOCAL_ALIGNED_16(INTFLOAT, l,  [BUF_SIZE], [2]);
    LOCAL_ALIGNED_16(INTFLOAT, r,  [BUF_SIZE], [2]);
    LOCAL_ALIGNED_16(INTFLOAT, l0, [BUF_SIZE], [2]);
    LOCAL_ALIGNED_16(INTFLOAT, r0, [BUF_SIZE], [2]);
    LOCAL_ALIGNED_16(INTFLOAT, l1, [BUF_SIZE], [2]);
    LOCAL_ALIGNED_16(INTFLOAT, r1, [BUF_SIZE], [2]);
    LOCAL_ALIGNED_16(INTFLOAT, h, [2], [4]);
    LOCAL_ALIGNED_16(INTFLOAT, h_step, [2], [4]);

    declare_func(void, INTFLOAT (*l)[2], INTFLOAT (*r)[2],
                       INTFLOAT h[2][4], INTFLOAT h_step[2][4], int len);

    randomize((INTFLOAT *)l, BUF_SIZE * 2);
    randomize((INTFLOAT *)r, BUF_SIZE * 2);

    for (i = 0; i < 2; i++) {
        if (check_func(psdsp->stereo_interpolate[i], "ps_stereo_interpolate%s", i ? "_ipdopd" : "")) {
            memcpy(l0, l, BUF_SIZE * 2 * sizeof(INTFLOAT));
            memcpy(l1, l, BUF_SIZE * 2 * sizeof(INTFLOAT));
            memcpy(r0, r, BUF_SIZE * 2 * sizeof(INTFLOAT));
            memcpy(r1, r, BUF_SIZE * 2 * sizeof(INTFLOAT));

            randomize((INTFLOAT *)h, 2 * 4);
            randomize((INTFLOAT *)h_step, 2 * 4);
            // Clear the least significant 14 bits of h_step, to avoid
            // divergence when accumulating h_step BUF_SIZE times into
            // a float variable which may or may not have extra intermediate
            // precision. Therefore clear roughly log2(BUF_SIZE) less
            // significant bits, to get the same result regardless of any
            // extra precision in the accumulator.
            clear_less_significant_bits((INTFLOAT *)h_step, 2 * 4, 14);

            call_ref(l0, r0, h, h_step, BUF_SIZE);
            call_new(l1, r1, h, h_step, BUF_SIZE);
            if (!float_near_abs_eps_array((float *)l0, (float *)l1, EPS, BUF_SIZE * 2) ||
                !float_near_abs_eps_array((float *)r0, (float *)r1, EPS, BUF_SIZE * 2))
                fail();

            memcpy(l1, l, BUF_SIZE * 2 * sizeof(INTFLOAT));
            memcpy(r1, r, BUF_SIZE * 2 * sizeof(INTFLOAT));
            bench_new(l1, r1, h, h_step, BUF_SIZE);
        }
    }
}

void checkasm_check_aacpsdsp(void)
{
    PSDSPContext psdsp;

    ff_psdsp_init(&psdsp);

    if (check_func(psdsp.add_squares, "ps_add_squares"))
        test_add_squares();
    report("add_squares");

    if (check_func(psdsp.mul_pair_single, "ps_mul_pair_single"))
        test_mul_pair_single();
    report("mul_pair_single");

    if (check_func(psdsp.hybrid_analysis, "ps_hybrid_analysis"))
        test_hybrid_analysis();
    report("hybrid_analysis");

    if (check_func(psdsp.hybrid_analysis_ileave, "ps_hybrid_analysis_ileave"))
        test_hybrid_analysis_ileave();
    report("hybrid_analysis_ileave");

    if (check_func(psdsp.hybrid_synthesis_deint, "ps_hybrid_synthesis_deint"))
        test_hybrid_synthesis_deint();
    report("hybrid_synthesis_deint");

    test_stereo_interpolate(&psdsp);
    report("stereo_interpolate");
}