| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * This file is part of FFmpeg. | ||
| 3 | * | ||
| 4 | * FFmpeg is free software; you can redistribute it and/or modify | ||
| 5 | * it under the terms of the GNU General Public License as published by | ||
| 6 | * the Free Software Foundation; either version 2 of the License, or | ||
| 7 | * (at your option) any later version. | ||
| 8 | * | ||
| 9 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 12 | * GNU General Public License for more details. | ||
| 13 | * | ||
| 14 | * You should have received a copy of the GNU General Public License along | ||
| 15 | * with FFmpeg; if not, write to the Free Software Foundation, Inc., | ||
| 16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 17 | */ | ||
| 18 | |||
| 19 | #include "libavutil/mem_internal.h" | ||
| 20 | |||
| 21 | #include "libavcodec/lpc.h" | ||
| 22 | |||
| 23 | #include "checkasm.h" | ||
| 24 | |||
| 25 | #define randomize_int32(buf, len) \ | ||
| 26 | do { \ | ||
| 27 | for (int i = 0; i < len; i++) { \ | ||
| 28 | int32_t f = ((int)(UINT32_MAX >> 17)) - ((int)(rnd() >> 16)); \ | ||
| 29 | buf[i] = f; \ | ||
| 30 | } \ | ||
| 31 | } while (0) | ||
| 32 | |||
| 33 | #define EPS 0.005 | ||
| 34 | |||
| 35 | 6 | static void test_window(int len) | |
| 36 | { | ||
| 37 | 6 | LOCAL_ALIGNED(16, int32_t, src, [5000]); | |
| 38 | 6 | LOCAL_ALIGNED(16, double, dst0, [5000]); | |
| 39 | 6 | LOCAL_ALIGNED(16, double, dst1, [5000]); | |
| 40 | |||
| 41 | 6 | declare_func(void, const int32_t *in, ptrdiff_t len, double *out); | |
| 42 | |||
| 43 |
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10589 | randomize_int32(src, len); |
| 44 | |||
| 45 | 6 | call_ref(src, len, dst0); | |
| 46 | 6 | call_new(src, len, dst1); | |
| 47 | |||
| 48 |
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10589 | for (int i = 0; i < len; i++) { |
| 49 |
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10583 | if (!double_near_abs_eps(dst0[i], dst1[i], EPS)) { |
| 50 | ✗ | fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n", | |
| 51 | ✗ | i, dst0[i], dst1[i], dst0[i] - dst1[i]); | |
| 52 | ✗ | fail(); | |
| 53 | ✗ | break; | |
| 54 | } | ||
| 55 | } | ||
| 56 | |||
| 57 |
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6 | bench_new(src, len, dst1); |
| 58 | 6 | } | |
| 59 | |||
| 60 | 13 | void checkasm_check_lpc(void) | |
| 61 | { | ||
| 62 | LPCContext ctx; | ||
| 63 | 13 | int len = rnd() % 5000; | |
| 64 | 13 | ff_lpc_init(&ctx, 32, 16, FF_LPC_TYPE_DEFAULT); | |
| 65 | |||
| 66 |
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13 | if (check_func(ctx.lpc_apply_welch_window, "apply_welch_window_even")) { |
| 67 | 3 | test_window(len & ~1); | |
| 68 | } | ||
| 69 | 13 | report("apply_welch_window_even"); | |
| 70 | |||
| 71 |
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13 | if (check_func(ctx.lpc_apply_welch_window, "apply_welch_window_odd")) { |
| 72 | 3 | test_window(len | 1); | |
| 73 | } | ||
| 74 | 13 | report("apply_welch_window_odd"); | |
| 75 | |||
| 76 | 13 | ff_lpc_end(&ctx); | |
| 77 | 13 | } | |
| 78 |