FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavutil/stereo3d.c
Date: 2026-08-29 16:27:19
Exec Total Coverage
Lines: 46 48 95.8%
Functions: 10 10 100.0%
Branches: 23 26 88.5%
Line Branch Exec Source
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 #include <string.h>
22
23 #include "frame.h"
24 #include "macros.h"
25 #include "mem.h"
26 #include "stereo3d.h"
27
28 346 static void get_defaults(AVStereo3D *stereo)
29 {
30 346 stereo->horizontal_disparity_adjustment = (AVRational) { 0, 1 };
31 346 stereo->horizontal_field_of_view = (AVRational) { 0, 1 };
32 346 }
33
34 1 AVStereo3D *av_stereo3d_alloc(void)
35 {
36 1 return av_stereo3d_alloc_size(NULL);
37 }
38
39 243 AVStereo3D *av_stereo3d_alloc_size(size_t *size)
40 {
41 243 AVStereo3D *stereo = av_mallocz(sizeof(AVStereo3D));
42
43
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 243 if (size)
44
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 242 *size = stereo ? sizeof(*stereo) : 0;
45
46
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 243 if (!stereo)
47 ✗ return NULL;
48
49 243 get_defaults(stereo);
50
51 243 return stereo;
52 }
53
54 103 AVStereo3D *av_stereo3d_create_side_data(AVFrame *frame)
55 {
56 103 AVFrameSideData *side_data = av_frame_new_side_data(frame,
57 AV_FRAME_DATA_STEREO3D,
58 sizeof(AVStereo3D));
59
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 103 if (!side_data)
60 ✗ return NULL;
61
62 103 memset(side_data->data, 0, sizeof(AVStereo3D));
63 103 get_defaults((AVStereo3D *)side_data->data);
64
65 103 return (AVStereo3D *)side_data->data;
66 }
67
68 static const char * const stereo3d_type_names[] = {
69 [AV_STEREO3D_2D] = "2D",
70 [AV_STEREO3D_SIDEBYSIDE] = "side by side",
71 [AV_STEREO3D_TOPBOTTOM] = "top and bottom",
72 [AV_STEREO3D_FRAMESEQUENCE] = "frame alternate",
73 [AV_STEREO3D_CHECKERBOARD] = "checkerboard",
74 [AV_STEREO3D_SIDEBYSIDE_QUINCUNX] = "side by side (quincunx subsampling)",
75 [AV_STEREO3D_LINES] = "interleaved lines",
76 [AV_STEREO3D_COLUMNS] = "interleaved columns",
77 [AV_STEREO3D_UNSPEC] = "unspecified",
78 };
79
80 static const char * const stereo3d_view_names[] = {
81 [AV_STEREO3D_VIEW_PACKED] = "packed",
82 [AV_STEREO3D_VIEW_LEFT] = "left",
83 [AV_STEREO3D_VIEW_RIGHT] = "right",
84 [AV_STEREO3D_VIEW_UNSPEC] = "unspecified",
85 };
86
87 static const char * const stereo3d_primary_eye_names[] = {
88 [AV_PRIMARY_EYE_NONE] = "none",
89 [AV_PRIMARY_EYE_LEFT] = "left",
90 [AV_PRIMARY_EYE_RIGHT] = "right",
91 };
92
93 499 const char *av_stereo3d_type_name(unsigned int type)
94 {
95
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 499 if (type >= FF_ARRAY_ELEMS(stereo3d_type_names))
96 1 return "unknown";
97
98 498 return stereo3d_type_names[type];
99 }
100
101 19 int av_stereo3d_from_name(const char *name)
102 {
103 int i;
104
105
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 100 for (i = 0; i < FF_ARRAY_ELEMS(stereo3d_type_names); i++) {
106
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 99 if (!strcmp(name, stereo3d_type_names[i]))
107 18 return i;
108 }
109
110 1 return -1;
111 }
112
113 489 const char *av_stereo3d_view_name(unsigned int view)
114 {
115
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 489 if (view >= FF_ARRAY_ELEMS(stereo3d_view_names))
116 1 return "unknown";
117
118 488 return stereo3d_view_names[view];
119 }
120
121 9 int av_stereo3d_view_from_name(const char *name)
122 {
123 int i;
124
125
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 25 for (i = 0; i < FF_ARRAY_ELEMS(stereo3d_view_names); i++) {
126
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 24 if (!strcmp(name, stereo3d_view_names[i]))
127 8 return i;
128 }
129
130 1 return -1;
131 }
132
133 484 const char *av_stereo3d_primary_eye_name(unsigned int eye)
134 {
135
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 484 if (eye >= FF_ARRAY_ELEMS(stereo3d_primary_eye_names))
136 1 return "unknown";
137
138 483 return stereo3d_primary_eye_names[eye];
139 }
140
141 4 int av_stereo3d_primary_eye_from_name(const char *name)
142 {
143 int i;
144
145
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 10 for (i = 0; i < FF_ARRAY_ELEMS(stereo3d_primary_eye_names); i++) {
146
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 9 if (!strcmp(name, stereo3d_primary_eye_names[i]))
147 3 return i;
148 }
149
150 1 return -1;
151 }
152