FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavdevice/avdevice.c
Date: 2026-05-02 21:46:34
Exec Total Coverage
Lines: 39 61 63.9%
Functions: 4 7 57.1%
Branches: 17 42 40.5%
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 "libavutil/avassert.h"
20 #include "libavutil/mem.h"
21 #include "avdevice.h"
22 #include "internal.h"
23 #include "libavformat/demux.h"
24 #include "libavformat/mux.h"
25
26 ✗ int avdevice_app_to_dev_control_message(struct AVFormatContext *s, enum AVAppToDevMessageType type,
27 void *data, size_t data_size)
28 {
29 ✗ if (!s->oformat || !ffofmt(s->oformat)->control_message)
30 ✗ return AVERROR(ENOSYS);
31 ✗ return ffofmt(s->oformat)->control_message(s, type, data, data_size);
32 }
33
34 ✗ int avdevice_dev_to_app_control_message(struct AVFormatContext *s, enum AVDevToAppMessageType type,
35 void *data, size_t data_size)
36 {
37 ✗ if (!s->control_message_cb)
38 ✗ return AVERROR(ENOSYS);
39 ✗ return s->control_message_cb(s, type, data, data_size);
40 }
41
42 1 int avdevice_list_devices(AVFormatContext *s, AVDeviceInfoList **device_list)
43 {
44 int ret;
45
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 1 av_assert0(s);
46
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 1 av_assert0(device_list);
47
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 1 av_assert0(s->oformat || s->iformat);
48
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 1 if ((s->oformat && !ffofmt(s->oformat)->get_device_list) ||
49
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 1 (s->iformat && !ffifmt(s->iformat)->get_device_list)) {
50 ✗ *device_list = NULL;
51 ✗ return AVERROR(ENOSYS);
52 }
53 1 *device_list = av_mallocz(sizeof(AVDeviceInfoList));
54
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 1 if (!(*device_list))
55 ✗ return AVERROR(ENOMEM);
56 /* no default device by default */
57 1 (*device_list)->default_device = -1;
58
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 1 if (s->oformat)
59 ✗ ret = ffofmt(s->oformat)->get_device_list(s, *device_list);
60 else
61 1 ret = ffifmt(s->iformat)->get_device_list(s, *device_list);
62
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 1 if (ret < 0) {
63 ✗ avdevice_free_list_devices(device_list);
64 ✗ return ret;
65 }
66 1 return (*device_list)->nb_devices;
67 }
68
69 1 static int list_devices_for_context(AVFormatContext *s, AVDictionary *options,
70 AVDeviceInfoList **device_list)
71 {
72 1 AVDictionary *tmp = NULL;
73 int ret;
74
75 1 av_dict_copy(&tmp, options, 0);
76
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 1 if ((ret = av_opt_set_dict2(s, &tmp, AV_OPT_SEARCH_CHILDREN)) < 0)
77 ✗ goto fail;
78 1 ret = avdevice_list_devices(s, device_list);
79 1 fail:
80 1 av_dict_free(&tmp);
81 1 avformat_free_context(s);
82 1 return ret;
83 }
84
85 1 int avdevice_list_input_sources(const AVInputFormat *device, const char *device_name,
86 AVDictionary *device_options, AVDeviceInfoList **device_list)
87 {
88 1 AVFormatContext *s = NULL;
89 int ret;
90
91
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 1 if ((ret = ff_alloc_input_device_context(&s, device, device_name)) < 0)
92 ✗ return ret;
93 1 return list_devices_for_context(s, device_options, device_list);
94 }
95
96 ✗ int avdevice_list_output_sinks(const AVOutputFormat *device, const char *device_name,
97 AVDictionary *device_options, AVDeviceInfoList **device_list)
98 {
99 ✗ AVFormatContext *s = NULL;
100 int ret;
101
102 ✗ if ((ret = avformat_alloc_output_context2(&s, device, device_name, NULL)) < 0)
103 ✗ return ret;
104 ✗ return list_devices_for_context(s, device_options, device_list);
105 }
106
107 1 void avdevice_free_list_devices(AVDeviceInfoList **device_list)
108 {
109 AVDeviceInfoList *list;
110 AVDeviceInfo *dev;
111 int i;
112
113
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 1 av_assert0(device_list);
114 1 list = *device_list;
115
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 1 if (!list)
116 ✗ return;
117
118
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 2 for (i = 0; i < list->nb_devices; i++) {
119 1 dev = list->devices[i];
120
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 1 if (dev) {
121 1 av_freep(&dev->device_name);
122 1 av_freep(&dev->device_description);
123 1 av_freep(&dev->media_types);
124 1 av_free(dev);
125 }
126 }
127 1 av_freep(&list->devices);
128 1 av_freep(device_list);
129 }
130