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|---|---|---|---|
| 1 | /** | ||
| 2 | * Copyright (c) 2016 Neil Birkbeck <neil.birkbeck@gmail.com> | ||
| 3 | * | ||
| 4 | * This file is part of FFmpeg. | ||
| 5 | * | ||
| 6 | * FFmpeg is free software; you can redistribute it and/or | ||
| 7 | * modify it under the terms of the GNU Lesser General Public | ||
| 8 | * License as published by the Free Software Foundation; either | ||
| 9 | * version 2.1 of the License, or (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 GNU | ||
| 14 | * Lesser General Public License for more details. | ||
| 15 | * | ||
| 16 | * You should have received a copy of the GNU Lesser General Public | ||
| 17 | * License along with FFmpeg; if not, write to the Free Software | ||
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 19 | */ | ||
| 20 | |||
| 21 | #include <stddef.h> | ||
| 22 | #include <stdint.h> | ||
| 23 | #include <string.h> | ||
| 24 | |||
| 25 | #include "mastering_display_metadata.h" | ||
| 26 | #include "mem.h" | ||
| 27 | |||
| 28 | 37 | static void get_defaults(AVMasteringDisplayMetadata *mastering) | |
| 29 | { | ||
| 30 |
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148 | for (int i = 0; i < 3; i++) |
| 31 |
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333 | for (int j = 0; j < 2; j++) |
| 32 | 222 | mastering->display_primaries[i][j] = (AVRational) { 0, 1 }; | |
| 33 | 37 | mastering->white_point[0] = | |
| 34 | 37 | mastering->white_point[1] = | |
| 35 | 37 | mastering->min_luminance = | |
| 36 | 37 | mastering->max_luminance = (AVRational) { 0, 1 }; | |
| 37 | 37 | } | |
| 38 | |||
| 39 | ✗ | AVMasteringDisplayMetadata *av_mastering_display_metadata_alloc(void) | |
| 40 | { | ||
| 41 | ✗ | return av_mastering_display_metadata_alloc_size(NULL); | |
| 42 | } | ||
| 43 | |||
| 44 | 35 | AVMasteringDisplayMetadata *av_mastering_display_metadata_alloc_size(size_t *size) | |
| 45 | { | ||
| 46 | 35 | AVMasteringDisplayMetadata *mastering = av_mallocz(sizeof(AVMasteringDisplayMetadata)); | |
| 47 |
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35 | if (!mastering) |
| 48 | ✗ | return NULL; | |
| 49 | |||
| 50 | 35 | get_defaults(mastering); | |
| 51 | |||
| 52 |
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35 | if (size) |
| 53 | 35 | *size = sizeof(*mastering); | |
| 54 | |||
| 55 | 35 | return mastering; | |
| 56 | } | ||
| 57 | |||
| 58 | 2 | AVMasteringDisplayMetadata *av_mastering_display_metadata_create_side_data(AVFrame *frame) | |
| 59 | { | ||
| 60 | 2 | AVFrameSideData *side_data = av_frame_new_side_data(frame, | |
| 61 | AV_FRAME_DATA_MASTERING_DISPLAY_METADATA, | ||
| 62 | sizeof(AVMasteringDisplayMetadata)); | ||
| 63 |
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2 | if (!side_data) |
| 64 | ✗ | return NULL; | |
| 65 | |||
| 66 | 2 | memset(side_data->data, 0, sizeof(AVMasteringDisplayMetadata)); | |
| 67 | 2 | get_defaults((AVMasteringDisplayMetadata *)side_data->data); | |
| 68 | |||
| 69 | 2 | return (AVMasteringDisplayMetadata *)side_data->data; | |
| 70 | } | ||
| 71 | |||
| 72 | 17 | AVContentLightMetadata *av_content_light_metadata_alloc(size_t *size) | |
| 73 | { | ||
| 74 | 17 | AVContentLightMetadata *metadata = av_mallocz(sizeof(AVContentLightMetadata)); | |
| 75 | |||
| 76 |
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17 | if (size) |
| 77 | 17 | *size = sizeof(*metadata); | |
| 78 | |||
| 79 | 17 | return metadata; | |
| 80 | } | ||
| 81 | |||
| 82 | 2 | AVContentLightMetadata *av_content_light_metadata_create_side_data(AVFrame *frame) | |
| 83 | { | ||
| 84 | 2 | AVFrameSideData *side_data = av_frame_new_side_data(frame, | |
| 85 | AV_FRAME_DATA_CONTENT_LIGHT_LEVEL, | ||
| 86 | sizeof(AVContentLightMetadata)); | ||
| 87 |
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2 | if (!side_data) |
| 88 | ✗ | return NULL; | |
| 89 | |||
| 90 | 2 | memset(side_data->data, 0, sizeof(AVContentLightMetadata)); | |
| 91 | |||
| 92 | 2 | return (AVContentLightMetadata *)side_data->data; | |
| 93 | } | ||
| 94 |