FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavdevice/avdevice.c
Date: 2024-03-29 01:21:52
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/demux.h"
23 #include "libavformat/mux.h"
24
25 int avdevice_app_to_dev_control_message(struct AVFormatContext *s, enum AVAppToDevMessageType type,
26 void *data, size_t data_size)
27 {
28 if (!s->oformat || !ffofmt(s->oformat)->control_message)
29 return AVERROR(ENOSYS);
30 return ffofmt(s->oformat)->control_message(s, type, data, data_size);
31 }
32
33 int avdevice_dev_to_app_control_message(struct AVFormatContext *s, enum AVDevToAppMessageType type,
34 void *data, size_t data_size)
35 {
36 if (!s->control_message_cb)
37 return AVERROR(ENOSYS);
38 return s->control_message_cb(s, type, data, data_size);
39 }
40
41 int avdevice_list_devices(AVFormatContext *s, AVDeviceInfoList **device_list)
42 {
43 int ret;
44 av_assert0(s);
45 av_assert0(device_list);
46 av_assert0(s->oformat || s->iformat);
47 if ((s->oformat && !ffofmt(s->oformat)->get_device_list) ||
48 (s->iformat && !ffifmt(s->iformat)->get_device_list)) {
49 *device_list = NULL;
50 return AVERROR(ENOSYS);
51 }
52 *device_list = av_mallocz(sizeof(AVDeviceInfoList));
53 if (!(*device_list))
54 return AVERROR(ENOMEM);
55 /* no default device by default */
56 (*device_list)->default_device = -1;
57 if (s->oformat)
58 ret = ffofmt(s->oformat)->get_device_list(s, *device_list);
59 else
60 ret = ffifmt(s->iformat)->get_device_list(s, *device_list);
61 if (ret < 0) {
62 avdevice_free_list_devices(device_list);
63 return ret;
64 }
65 return (*device_list)->nb_devices;
66 }
67
68 static int list_devices_for_context(AVFormatContext *s, AVDictionary *options,
69 AVDeviceInfoList **device_list)
70 {
71 AVDictionary *tmp = NULL;
72 int ret;
73
74 av_dict_copy(&tmp, options, 0);
75 if ((ret = av_opt_set_dict2(s, &tmp, AV_OPT_SEARCH_CHILDREN)) < 0)
76 goto fail;
77 ret = avdevice_list_devices(s, device_list);
78 fail:
79 av_dict_free(&tmp);
80 avformat_free_context(s);
81 return ret;
82 }
83
84 int avdevice_list_input_sources(const AVInputFormat *device, const char *device_name,
85 AVDictionary *device_options, AVDeviceInfoList **device_list)
86 {
87 AVFormatContext *s = NULL;
88 int ret;
89
90 if ((ret = ff_alloc_input_device_context(&s, device, device_name)) < 0)
91 return ret;
92 return list_devices_for_context(s, device_options, device_list);
93 }
94
95 int avdevice_list_output_sinks(const AVOutputFormat *device, const char *device_name,
96 AVDictionary *device_options, AVDeviceInfoList **device_list)
97 {
98 AVFormatContext *s = NULL;
99 int ret;
100
101 if ((ret = avformat_alloc_output_context2(&s, device, device_name, NULL)) < 0)
102 return ret;
103 return list_devices_for_context(s, device_options, device_list);
104 }
105
106 void avdevice_free_list_devices(AVDeviceInfoList **device_list)
107 {
108 AVDeviceInfoList *list;
109 AVDeviceInfo *dev;
110 int i;
111
112 av_assert0(device_list);
113 list = *device_list;
114 if (!list)
115 return;
116
117 for (i = 0; i < list->nb_devices; i++) {
118 dev = list->devices[i];
119 if (dev) {
120 av_freep(&dev->device_name);
121 av_freep(&dev->device_description);
122 av_freep(&dev->media_types);
123 av_free(dev);
124 }
125 }
126 av_freep(&list->devices);
127 av_freep(device_list);
128 }
129