repositories / deb_ffmpeg.git / blame
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1 | /* |
| 2 | * Copyright (c) 2013 Vittorio Giovara <vittorio.giovara@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 | #ifndef AVUTIL_STEREO3D_H | |
| 22 | #define AVUTIL_STEREO3D_H | |
| 23 | ||
| 24 | #include <stdint.h> | |
| 25 | ||
| 26 | #include "frame.h" | |
| 27 | ||
| 28 | /** | |
| 29 | * List of possible 3D Types | |
| 30 | */ | |
| 31 | enum AVStereo3DType { | |
| 32 | /** | |
| 33 | * Video is not stereoscopic (and metadata has to be there). | |
| 34 | */ | |
| 35 | AV_STEREO3D_2D, | |
| 36 | ||
| 37 | /** | |
| 38 | * Views are next to each other. | |
| 39 | * | |
| 40 | * LLLLRRRR | |
| 41 | * LLLLRRRR | |
| 42 | * LLLLRRRR | |
| 43 | * ... | |
| 44 | */ | |
| 45 | AV_STEREO3D_SIDEBYSIDE, | |
| 46 | ||
| 47 | /** | |
| 48 | * Views are on top of each other. | |
| 49 | * | |
| 50 | * LLLLLLLL | |
| 51 | * LLLLLLLL | |
| 52 | * RRRRRRRR | |
| 53 | * RRRRRRRR | |
| 54 | */ | |
| 55 | AV_STEREO3D_TOPBOTTOM, | |
| 56 | ||
| 57 | /** | |
| 58 | * Views are alternated temporally. | |
| 59 | * | |
| 60 | * frame0 frame1 frame2 ... | |
| 61 | * LLLLLLLL RRRRRRRR LLLLLLLL | |
| 62 | * LLLLLLLL RRRRRRRR LLLLLLLL | |
| 63 | * LLLLLLLL RRRRRRRR LLLLLLLL | |
| 64 | * ... ... ... | |
| 65 | */ | |
| 66 | AV_STEREO3D_FRAMESEQUENCE, | |
| 67 | ||
| 68 | /** | |
| 69 | * Views are packed in a checkerboard-like structure per pixel. | |
| 70 | * | |
| 71 | * LRLRLRLR | |
| 72 | * RLRLRLRL | |
| 73 | * LRLRLRLR | |
| 74 | * ... | |
| 75 | */ | |
| 76 | AV_STEREO3D_CHECKERBOARD, | |
| 77 | ||
| 78 | /** | |
| 79 | * Views are next to each other, but when upscaling | |
| 80 | * apply a checkerboard pattern. | |
| 81 | * | |
| 82 | * LLLLRRRR L L L L R R R R | |
| 83 | * LLLLRRRR => L L L L R R R R | |
| 84 | * LLLLRRRR L L L L R R R R | |
| 85 | * LLLLRRRR L L L L R R R R | |
| 86 | */ | |
| 87 | AV_STEREO3D_SIDEBYSIDE_QUINCUNX, | |
| 88 | ||
| 89 | /** | |
| 90 | * Views are packed per line, as if interlaced. | |
| 91 | * | |
| 92 | * LLLLLLLL | |
| 93 | * RRRRRRRR | |
| 94 | * LLLLLLLL | |
| 95 | * ... | |
| 96 | */ | |
| 97 | AV_STEREO3D_LINES, | |
| 98 | ||
| 99 | /** | |
| 100 | * Views are packed per column. | |
| 101 | * | |
| 102 | * LRLRLRLR | |
| 103 | * LRLRLRLR | |
| 104 | * LRLRLRLR | |
| 105 | * ... | |
| 106 | */ | |
| 107 | AV_STEREO3D_COLUMNS, | |
| 108 | }; | |
| 109 | ||
| 110 | ||
| 111 | /** | |
| 112 | * Inverted views, Right/Bottom represents the left view. | |
| 113 | */ | |
| 114 | #define AV_STEREO3D_FLAG_INVERT (1 << 0) | |
| 115 | ||
| 116 | /** | |
| 117 | * Stereo 3D type: this structure describes how two videos are packed | |
| 118 | * within a single video surface, with additional information as needed. | |
| 119 | * | |
| 120 | * @note The struct must be allocated with av_stereo3d_alloc() and | |
| 121 | * its size is not a part of the public ABI. | |
| 122 | */ | |
| 123 | typedef struct AVStereo3D { | |
| 124 | /** | |
| 125 | * How views are packed within the video. | |
| 126 | */ | |
| 127 | enum AVStereo3DType type; | |
| 128 | ||
| 129 | /** | |
| 130 | * Additional information about the frame packing. | |
| 131 | */ | |
| 132 | int flags; | |
| 133 | } AVStereo3D; | |
| 134 | ||
| 135 | /** | |
| 136 | * Allocate an AVStereo3D structure and set its fields to default values. | |
| 137 | * The resulting struct can be freed using av_freep(). | |
| 138 | * | |
| 139 | * @return An AVStereo3D filled with default values or NULL on failure. | |
| 140 | */ | |
| 141 | AVStereo3D *av_stereo3d_alloc(void); | |
| 142 | ||
| 143 | /** | |
| 144 | * Allocate a complete AVFrameSideData and add it to the frame. | |
| 145 | * | |
| 146 | * @param frame The frame which side data is added to. | |
| 147 | * | |
| 148 | * @return The AVStereo3D structure to be filled by caller. | |
| 149 | */ | |
| 150 | AVStereo3D *av_stereo3d_create_side_data(AVFrame *frame); | |
| 151 | ||
| 152 | #endif /* AVUTIL_STEREO3D_H */ |