| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * This file is part of FFmpeg. | ||
| 3 | * | ||
| 4 | * FFmpeg is free software; you can redistribute it and/or | ||
| 5 | * modify it under the terms of the GNU Lesser General Public | ||
| 6 | * License as published by the Free Software Foundation; either | ||
| 7 | * version 2.1 of the License, or (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 GNU | ||
| 12 | * Lesser General Public License for more details. | ||
| 13 | * | ||
| 14 | * You should have received a copy of the GNU Lesser General Public | ||
| 15 | * License along with FFmpeg; if not, write to the Free Software | ||
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 17 | */ | ||
| 18 | |||
| 19 | #include <limits.h> | ||
| 20 | #include <stdio.h> | ||
| 21 | |||
| 22 | #include "libavutil/downmix_info.h" | ||
| 23 | #include "libavutil/frame.h" | ||
| 24 | #include "libavutil/mem.h" | ||
| 25 | |||
| 26 | 1 | int main(void) | |
| 27 | { | ||
| 28 | AVFrame *frame; | ||
| 29 | AVDownmixInfo *info, *info2; | ||
| 30 | |||
| 31 | /* First call: allocates side data, zero-initialized. */ | ||
| 32 | 1 | printf("Testing av_downmix_info_update_side_data()\n"); | |
| 33 | 1 | frame = av_frame_alloc(); | |
| 34 |
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1 | if (!frame) |
| 35 | ✗ | return 1; | |
| 36 | |||
| 37 | 1 | info = av_downmix_info_update_side_data(frame); | |
| 38 |
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1 | if (info) { |
| 39 | 1 | printf("create: OK\n"); | |
| 40 | 1 | printf("defaults: type=%d center=%.3f center_ltrt=%.3f surround=%.3f" | |
| 41 | " surround_ltrt=%.3f lfe=%.3f\n", | ||
| 42 | 1 | info->preferred_downmix_type, | |
| 43 | info->center_mix_level, info->center_mix_level_ltrt, | ||
| 44 | info->surround_mix_level, info->surround_mix_level_ltrt, | ||
| 45 | info->lfe_mix_level); | ||
| 46 | |||
| 47 | /* Write fields and read them back. The mix levels are absolute scale | ||
| 48 | * factors, not gains in dB, so every value is a distinct nonnegative | ||
| 49 | * factor. Each one is a negative power of two or a sum of two, which | ||
| 50 | * makes the decimal output exact on any platform. */ | ||
| 51 | 1 | info->preferred_downmix_type = AV_DOWNMIX_TYPE_LTRT; | |
| 52 | 1 | info->center_mix_level = 0.5; | |
| 53 | 1 | info->center_mix_level_ltrt = 0.625; | |
| 54 | 1 | info->surround_mix_level = 0.25; | |
| 55 | 1 | info->surround_mix_level_ltrt = 0.375; | |
| 56 | 1 | info->lfe_mix_level = 0.125; | |
| 57 | 1 | printf("write: type=%d center=%.3f center_ltrt=%.3f surround=%.3f" | |
| 58 | " surround_ltrt=%.3f lfe=%.3f\n", | ||
| 59 | 1 | info->preferred_downmix_type, | |
| 60 | info->center_mix_level, info->center_mix_level_ltrt, | ||
| 61 | info->surround_mix_level, info->surround_mix_level_ltrt, | ||
| 62 | info->lfe_mix_level); | ||
| 63 | } else { | ||
| 64 | ✗ | printf("create: FAIL\n"); | |
| 65 | } | ||
| 66 | |||
| 67 | /* Second call must reuse the existing side data (same pointer, values kept). */ | ||
| 68 | 1 | info2 = av_downmix_info_update_side_data(frame); | |
| 69 |
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1 | if (info && info2) { |
| 70 | 1 | printf("reuse: same_pointer=%s preserved_type=%d preserved_center=%.3f\n", | |
| 71 | info == info2 ? "yes" : "no", | ||
| 72 |
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1 | info2->preferred_downmix_type, info2->center_mix_level); |
| 73 | } | ||
| 74 | |||
| 75 | 1 | av_frame_free(&frame); | |
| 76 | |||
| 77 | /* OOM path: av_max_alloc(1) forces the internal side data allocation to fail. */ | ||
| 78 | 1 | printf("\nTesting OOM path\n"); | |
| 79 | 1 | frame = av_frame_alloc(); | |
| 80 |
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1 | if (frame) { |
| 81 | 1 | av_max_alloc(1); | |
| 82 | 1 | info = av_downmix_info_update_side_data(frame); | |
| 83 |
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1 | printf("OOM: %s\n", info ? "FAIL" : "OK"); |
| 84 | 1 | av_max_alloc(INT_MAX); | |
| 85 | 1 | av_frame_free(&frame); | |
| 86 | } | ||
| 87 | |||
| 88 | 1 | return 0; | |
| 89 | } | ||
| 90 |