FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavdevice/avdevice.c
Date: 2024-07-14 13:34:57
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 "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 int avdevice_list_devices(AVFormatContext *s, AVDeviceInfoList **device_list)
43 {
44 int ret;
45 av_assert0(s);
46 av_assert0(device_list);
47 av_assert0(s->oformat || s->iformat);
48 if ((s->oformat && !ffofmt(s->oformat)->get_device_list) ||
49 (s->iformat && !ffifmt(s->iformat)->get_device_list)) {
50 *device_list = NULL;
51 return AVERROR(ENOSYS);
52 }
53 *device_list = av_mallocz(sizeof(AVDeviceInfoList));
54 if (!(*device_list))
55 return AVERROR(ENOMEM);
56 /* no default device by default */
57 (*device_list)->default_device = -1;
58 if (s->oformat)
59 ret = ffofmt(s->oformat)->get_device_list(s, *device_list);
60 else
61 ret = ffifmt(s->iformat)->get_device_list(s, *device_list);
62 if (ret < 0) {
63 avdevice_free_list_devices(device_list);
64 return ret;
65 }
66 return (*device_list)->nb_devices;
67 }
68
69 static int list_devices_for_context(AVFormatContext *s, AVDictionary *options,
70 AVDeviceInfoList **device_list)
71 {
72 AVDictionary *tmp = NULL;
73 int ret;
74
75 av_dict_copy(&tmp, options, 0);
76 if ((ret = av_opt_set_dict2(s, &tmp, AV_OPT_SEARCH_CHILDREN)) < 0)
77 goto fail;
78 ret = avdevice_list_devices(s, device_list);
79 fail:
80 av_dict_free(&tmp);
81 avformat_free_context(s);
82 return ret;
83 }
84
85 int avdevice_list_input_sources(const AVInputFormat *device, const char *device_name,
86 AVDictionary *device_options, AVDeviceInfoList **device_list)
87 {
88 AVFormatContext *s = NULL;
89 int ret;
90
91 if ((ret = ff_alloc_input_device_context(&s, device, device_name)) < 0)
92 return ret;
93 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 void avdevice_free_list_devices(AVDeviceInfoList **device_list)
108 {
109 AVDeviceInfoList *list;
110 AVDeviceInfo *dev;
111 int i;
112
113 av_assert0(device_list);
114 list = *device_list;
115 if (!list)
116 return;
117
118 for (i = 0; i < list->nb_devices; i++) {
119 dev = list->devices[i];
120 if (dev) {
121 av_freep(&dev->device_name);
122 av_freep(&dev->device_description);
123 av_freep(&dev->media_types);
124 av_free(dev);
125 }
126 }
127 av_freep(&list->devices);
128 av_freep(device_list);
129 }
130