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- /*
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
- #include "libavutil/avassert.h"
- #include "avdevice.h"
- #include "config.h"
- #include "libavutil/ffversion.h"
- const char av_device_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
- unsigned avdevice_version(void)
- {
- av_assert0(LIBAVDEVICE_VERSION_MICRO >= 100);
- return LIBAVDEVICE_VERSION_INT;
- }
- const char * avdevice_configuration(void)
- {
- return FFMPEG_CONFIGURATION;
- }
- const char * avdevice_license(void)
- {
- #define LICENSE_PREFIX "libavdevice license: "
- return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
- }
- int avdevice_app_to_dev_control_message(struct AVFormatContext *s, enum AVAppToDevMessageType type,
- void *data, size_t data_size)
- {
- if (!s->oformat || !s->oformat->control_message)
- return AVERROR(ENOSYS);
- return s->oformat->control_message(s, type, data, data_size);
- }
- int avdevice_dev_to_app_control_message(struct AVFormatContext *s, enum AVDevToAppMessageType type,
- void *data, size_t data_size)
- {
- if (!av_format_get_control_message_cb(s))
- return AVERROR(ENOSYS);
- return av_format_get_control_message_cb(s)(s, type, data, data_size);
- }
- int avdevice_list_devices(AVFormatContext *s, AVDeviceInfoList **device_list)
- {
- av_assert0(s);
- av_assert0(device_list);
- av_assert0(s->oformat || s->iformat);
- if ((s->oformat && !s->oformat->get_device_list) ||
- (s->iformat && !s->iformat->get_device_list)) {
- *device_list = NULL;
- return AVERROR(ENOSYS);
- }
- *device_list = av_mallocz(sizeof(AVDeviceInfoList));
- if (!(*device_list))
- return AVERROR(ENOMEM);
- if (s->oformat)
- return s->oformat->get_device_list(s, *device_list);
- return s->iformat->get_device_list(s, *device_list);
- }
- void avdevice_free_list_devices(AVDeviceInfoList **device_list)
- {
- AVDeviceInfoList *list;
- AVDeviceInfo *dev;
- int i;
- av_assert0(device_list);
- list = *device_list;
- if (!list)
- return;
- for (i = 0; i < list->nb_devices; i++) {
- dev = list->devices[i];
- if (dev) {
- av_free(dev->device_name);
- av_free(dev->device_description);
- av_free(dev);
- }
- }
- av_free(list->devices);
- av_freep(device_list);
- }
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