1 /*
2 * Copyright (c) 2015 James Almer
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 */
20
21 #include <string.h>
22 #include "checkasm.h"
23 #include "libavcodec/alacdsp.h"
24 #include "libavcodec/mathops.h"
25 #include "libavutil/common.h"
26 #include "libavutil/internal.h"
27
28 #define BUF_SIZE 256
29 #define MAX_CHANNELS 2
30
31 #define randomize_buffers() \
32 do { \
33 int i; \
34 for (i = 0; i < BUF_SIZE*MAX_CHANNELS; i++) { \
35 int32_t r = sign_extend(rnd(), 24); \
36 ref_buf[i] = r; \
37 new_buf[i] = r; \
38 } \
39 } while (0)
40
check_decorrelate_stereo(void)41 static void check_decorrelate_stereo(void)
42 {
43 LOCAL_ALIGNED_16(int32_t, ref_buf, [BUF_SIZE*MAX_CHANNELS]);
44 LOCAL_ALIGNED_16(int32_t, new_buf, [BUF_SIZE*MAX_CHANNELS]);
45 int32_t *ref[2] = { &ref_buf[BUF_SIZE*0], &ref_buf[BUF_SIZE*1] };
46 int32_t *new[2] = { &new_buf[BUF_SIZE*0], &new_buf[BUF_SIZE*1] };
47 ALACDSPContext c;
48
49 ff_alacdsp_init(&c);
50 if (check_func(c.decorrelate_stereo, "alac_decorrelate_stereo")) {
51 int len = (rnd() & 0xFF) + 1;
52 int shift = rnd() & 0x1F;
53 int weight = rnd() & 0xFF;
54 declare_func(void, int32_t *buf[2], int len, int shift, int weight);
55
56 randomize_buffers();
57 call_ref(ref, len, shift, weight);
58 call_new(new, len, shift, weight);
59 if (memcmp(ref[0], new[0], len * sizeof(int32_t)) ||
60 memcmp(ref[1], new[1], len * sizeof(int32_t)))
61 fail();
62 bench_new(new, BUF_SIZE, shift, weight);
63 }
64
65 report("decorrelate_stereo");
66 }
67
68 #undef randomize_buffers
69 #define randomize_buffers() \
70 do { \
71 int i, j; \
72 for (i = 0; i < BUF_SIZE; i++) { \
73 for (j = 0; j < ch; j++) { \
74 int32_t r = sign_extend(rnd(), 24); \
75 ref[j][i] = r; \
76 new[j][i] = r; \
77 r = rnd() & 0xFF; \
78 ref_ebb[j][i] = r; \
79 new_ebb[j][i] = r; \
80 } \
81 } \
82 } while (0)
83
check_append_extra_bits(void)84 static void check_append_extra_bits(void)
85 {
86 LOCAL_ALIGNED_16(int32_t, ref_buf, [BUF_SIZE*MAX_CHANNELS*2]);
87 LOCAL_ALIGNED_16(int32_t, new_buf, [BUF_SIZE*MAX_CHANNELS*2]);
88 int32_t *ref[2] = { &ref_buf[BUF_SIZE*0], &ref_buf[BUF_SIZE*1] };
89 int32_t *new[2] = { &new_buf[BUF_SIZE*0], &new_buf[BUF_SIZE*1] };
90 int32_t *ref_ebb[2] = { &ref_buf[BUF_SIZE*2], &ref_buf[BUF_SIZE*3] };
91 int32_t *new_ebb[2] = { &new_buf[BUF_SIZE*2], &new_buf[BUF_SIZE*3] };
92 ALACDSPContext c;
93 static const char * const channels[2] = { "mono", "stereo" };
94 int ch;
95
96 ff_alacdsp_init(&c);
97 for (ch = 1; ch <= 2; ch++) {
98 if (check_func(c.append_extra_bits[ch-1], "alac_append_extra_bits_%s", channels[ch-1])) {
99 int len = (rnd() & 0xFF) + 1;
100 declare_func(void, int32_t *buf[2], int32_t *ebb[2], int ebits, int ch, int len);
101
102 randomize_buffers();
103 call_ref(ref, ref_ebb, 8, ch, len);
104 call_new(new, new_ebb, 8, ch, len);
105 if ( memcmp(ref[0], new[0], len * sizeof(int32_t)) ||
106 (ch == 2 && memcmp(ref[1], new[1], len * sizeof(int32_t))))
107 fail();
108 bench_new(new, new_ebb, 8, ch, BUF_SIZE);
109 }
110 }
111
112 report("append_extra_bits");
113 }
114
checkasm_check_alacdsp(void)115 void checkasm_check_alacdsp(void)
116 {
117 check_decorrelate_stereo();
118 check_append_extra_bits();
119 }
120