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/*
* Copyright (C) 2018 Paul Kocialkowski <paul.kocialkowski@bootlin.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef _V4L2_H_
#define _V4L2_H_
#include <stdbool.h>
#define SOURCE_SIZE_MAX (1024 * 1024)
int v4l2_query_capabilities(int video_fd, unsigned int *capabilities);
bool v4l2_find_format(int video_fd, unsigned int type,
unsigned int pixelformat);
int v4l2_set_format(int video_fd, unsigned int type, unsigned int pixelformat,
unsigned int width, unsigned int height);
int v4l2_get_format(int video_fd, unsigned int type, unsigned int *width,
unsigned int *height, unsigned int *bytesperline,
unsigned int *sizes, unsigned int *planes_count);
int v4l2_create_buffers(int video_fd, unsigned int type,
unsigned int buffers_count, unsigned int *index_base);
int v4l2_query_buffer(int video_fd, unsigned int type, unsigned int index,
unsigned int *lengths, unsigned int *offsets,
unsigned int buffers_count);
int v4l2_request_buffers(int video_fd, unsigned int type,
unsigned int buffers_count);
int v4l2_queue_buffer(int video_fd, int request_fd, unsigned int type,
unsigned int index, unsigned int size,
unsigned int buffers_count);
int v4l2_dequeue_buffer(int video_fd, int request_fd, unsigned int type,
unsigned int index, unsigned int buffers_count);
int v4l2_export_buffer(int video_fd, unsigned int type, unsigned int index,
unsigned int flags, int *export_fds,
unsigned int export_fds_count);
int v4l2_set_control(int video_fd, int request_fd, unsigned int id, void *data,
unsigned int size);
int v4l2_set_stream(int video_fd, unsigned int type, bool enable);
#endif
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