Files
LordMZTE df939d4fe8 osdep/linux-als: support ambient-light on Linux
This implements the ambient-light property on Linux using the sysfs
interface.
2025-10-15 21:59:42 +02:00

50 lines
1.4 KiB
C

/*
* Generic interface for ambient light sensors (ALS)
*
* This file is part of mpv.
*
* mpv 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.
*
* mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
typedef struct MPContext MPContext;
struct mp_als;
enum mp_als_status {
MP_ALS_STATUS_OK = 0,
// The system has no ALS
MP_ALS_STATUS_NODEVICE,
// The system has an ALS, but we couldn't read it.
MP_ALS_STATUS_READFAILED,
};
/**
* @param parent talloc parent
* @return a newly allocated mp_linux_als_state
*/
// TODO: replace the mpctx parameter with mpv_global when we no longer need the
// vo for the als-voctrl implementation.
struct mp_als *mp_als_create(void *parent, MPContext *mpctx);
/**
* Get the ambient brightness.
* @param lux output value
*/
enum mp_als_status mp_als_get_lux(struct mp_als *state, double *lux);