mirror of
https://github.com/obsproject/obs-studio.git
synced 2024-09-20 21:13:04 +02:00
1bae57668c
This adds a small helper library to the v4l2 plugin that uses udev to get events for v4l2 devices.
81 lines
2.1 KiB
C
81 lines
2.1 KiB
C
/*
|
|
Copyright (C) 2014 by Leonhard Oelke <leonhard@in-verted.de>
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <inttypes.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* Initialize udev system to watch for device events
|
|
*
|
|
* @return monitor object, or NULL on error
|
|
*/
|
|
void *v4l2_init_udev(void);
|
|
|
|
/**
|
|
* Unref the udev system
|
|
*
|
|
* This will also remove any registered callbacks if there are any
|
|
*
|
|
* @param monitor monitor object
|
|
*/
|
|
void v4l2_unref_udev(void *monitor);
|
|
|
|
/**
|
|
* Callback when a device was added.
|
|
*
|
|
* @param dev device node of the device that was added
|
|
* @param userdata pointer to userdata specified when registered
|
|
*/
|
|
typedef void (*v4l2_device_added_cb)(const char *dev, void *userdata);
|
|
|
|
/**
|
|
* Callback when a device was removed.
|
|
*
|
|
* @param dev device node of the device that was removed
|
|
* @param userdata pointer to userdata specified when registered
|
|
*/
|
|
typedef void (*v4l2_device_removed_cb)(const char *dev, void *userdata);
|
|
|
|
/**
|
|
* Register the device added callback
|
|
*
|
|
* @param monitor monitor object
|
|
* @param cb the function that should be called
|
|
* @param userdata pointer to userdata that should be passed to the callback
|
|
*/
|
|
void v4l2_set_device_added_callback(void *monitor, v4l2_device_added_cb cb,
|
|
void *userdata);
|
|
|
|
/**
|
|
* Register the device remove callback
|
|
*
|
|
* @param monitor monitor object
|
|
* @param cb the function that should be called
|
|
* @param userdata pointer to userdata that should be passed to the callback
|
|
*/
|
|
void v4l2_set_device_removed_callback(void *monitor, v4l2_device_removed_cb cb,
|
|
void *userdata);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|