FFmpeg/libavdevice/avdevice.c

/*
 * 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"

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 (!s->control_message_cb)
        return AVERROR(ENOSYS);
    return s->control_message_cb(s, type, data, data_size);
}