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/flacdsp.h"
24 #include "libavutil/common.h"
25 #include "libavutil/internal.h"
26 #include "libavutil/intreadwrite.h"
27
28 #define BUF_SIZE 256
29 #define MAX_CHANNELS 8
30
31 #define randomize_buffers() \
32 do { \
33 int i, j; \
34 for (i = 0; i < BUF_SIZE; i += 4) { \
35 for (j = 0; j < channels; j++) { \
36 uint32_t r = rnd() & (1 << (bits - 2)) - 1; \
37 AV_WN32A(ref_src[j] + i, r); \
38 AV_WN32A(new_src[j] + i, r); \
39 } \
40 } \
41 } while (0)
42
check_decorrelate(uint8_t ** ref_dst,uint8_t ** ref_src,uint8_t ** new_dst,uint8_t ** new_src,int channels,int bits)43 static void check_decorrelate(uint8_t **ref_dst, uint8_t **ref_src, uint8_t **new_dst, uint8_t **new_src,
44 int channels, int bits) {
45 declare_func(void, uint8_t **out, int32_t **in, int channels, int len, int shift);
46
47 randomize_buffers();
48 call_ref(ref_dst, (int32_t **)ref_src, channels, BUF_SIZE / sizeof(int32_t), 8);
49 call_new(new_dst, (int32_t **)new_src, channels, BUF_SIZE / sizeof(int32_t), 8);
50 if (memcmp(*ref_dst, *new_dst, bits == 16 ? BUF_SIZE * (channels/2) : BUF_SIZE * channels) ||
51 memcmp(*ref_src, *new_src, BUF_SIZE * channels))
52 fail();
53 bench_new(new_dst, (int32_t **)new_src, channels, BUF_SIZE / sizeof(int32_t), 8);
54 }
55
checkasm_check_flacdsp(void)56 void checkasm_check_flacdsp(void)
57 {
58 LOCAL_ALIGNED_16(uint8_t, ref_dst, [BUF_SIZE*MAX_CHANNELS]);
59 LOCAL_ALIGNED_16(uint8_t, ref_buf, [BUF_SIZE*MAX_CHANNELS]);
60 LOCAL_ALIGNED_16(uint8_t, new_dst, [BUF_SIZE*MAX_CHANNELS]);
61 LOCAL_ALIGNED_16(uint8_t, new_buf, [BUF_SIZE*MAX_CHANNELS]);
62 uint8_t *ref_src[] = { &ref_buf[BUF_SIZE*0], &ref_buf[BUF_SIZE*1], &ref_buf[BUF_SIZE*2], &ref_buf[BUF_SIZE*3],
63 &ref_buf[BUF_SIZE*4], &ref_buf[BUF_SIZE*5], &ref_buf[BUF_SIZE*6], &ref_buf[BUF_SIZE*7] };
64 uint8_t *new_src[] = { &new_buf[BUF_SIZE*0], &new_buf[BUF_SIZE*1], &new_buf[BUF_SIZE*2], &new_buf[BUF_SIZE*3],
65 &new_buf[BUF_SIZE*4], &new_buf[BUF_SIZE*5], &new_buf[BUF_SIZE*6], &new_buf[BUF_SIZE*7] };
66 static const char * const names[3] = { "ls", "rs", "ms" };
67 static const struct {
68 enum AVSampleFormat fmt;
69 int bits;
70 } fmts[] = {
71 { AV_SAMPLE_FMT_S16, 16 },
72 { AV_SAMPLE_FMT_S32, 32 },
73 };
74 FLACDSPContext h;
75 int i, j;
76
77 for (i = 0; i < 2; i++) {
78 ff_flacdsp_init(&h, fmts[i].fmt, 2, 0);
79 for (j = 0; j < 3; j++)
80 if (check_func(h.decorrelate[j], "flac_decorrelate_%s_%d", names[j], fmts[i].bits))
81 check_decorrelate(&ref_dst, ref_src, &new_dst, new_src, 2, fmts[i].bits);
82 for (j = 2; j <= MAX_CHANNELS; j += 2) {
83 ff_flacdsp_init(&h, fmts[i].fmt, j, 0);
84 if (check_func(h.decorrelate[0], "flac_decorrelate_indep%d_%d", j, fmts[i].bits))
85 check_decorrelate(&ref_dst, ref_src, &new_dst, new_src, j, fmts[i].bits);
86 }
87 }
88
89 report("decorrelate");
90 }
91