2 * This file is part of FFmpeg.
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.
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.
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
19 #include "libavutil/avassert.h"
23 unsigned avdevice_version(void)
25 av_assert0(LIBAVDEVICE_VERSION_MICRO >= 100);
26 return LIBAVDEVICE_VERSION_INT;
29 const char * avdevice_configuration(void)
31 return FFMPEG_CONFIGURATION;
34 const char * avdevice_license(void)
36 #define LICENSE_PREFIX "libavdevice license: "
37 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
40 int avdevice_app_to_dev_control_message(struct AVFormatContext *s, enum AVAppToDevMessageType type,
41 void *data, size_t data_size)
43 if (!s->oformat || !s->oformat->control_message)
44 return AVERROR(ENOSYS);
45 return s->oformat->control_message(s, type, data, data_size);
48 int avdevice_dev_to_app_control_message(struct AVFormatContext *s, enum AVDevToAppMessageType type,
49 void *data, size_t data_size)
51 if (!s->control_message_cb)
52 return AVERROR(ENOSYS);
53 return s->control_message_cb(s, type, data, data_size);
56 int avdevice_list_devices(AVFormatContext *s, AVDeviceInfoList **device_list)
59 av_assert0(device_list);
60 av_assert0(s->oformat || s->iformat);
61 if ((s->oformat && !s->oformat->get_device_list) ||
62 (s->iformat && !s->iformat->get_device_list)) {
64 return AVERROR(ENOSYS);
66 *device_list = av_mallocz(sizeof(AVDeviceInfoList));
68 return AVERROR(ENOMEM);
70 return s->oformat->get_device_list(s, *device_list);
71 return s->iformat->get_device_list(s, *device_list);
74 void avdevice_free_list_devices(AVDeviceInfoList **device_list)
76 AVDeviceInfoList *list;
80 av_assert0(device_list);
85 for (i = 0; i < list->nb_devices; i++) {
86 dev = list->devices[i];
88 av_free(dev->device_name);
89 av_free(dev->device_description);
93 av_free(list->devices);
94 av_freep(device_list);