FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavdevice/avdevice.c
Date: 2024-02-16 17:37:06
Exec Total Coverage
Lines: 0 61 0.0%
Functions: 0 7 0.0%
Branches: 0 42 0.0%

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