forked from marfrit/libva-v4l2-request-fourier
Paul Kocialkowski
49 lines
2.1 KiB
C
49 lines
2.1 KiB
C
/*
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* Copyright (C) 2018 Paul Kocialkowski <paul.kocialkowski@bootlin.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef _V4L2_H_
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#define _V4L2_H_
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#include <stdbool.h>
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#define DESTINATION_SIZE_MAX (1024 * 1024)
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bool v4l2_find_format(int video_fd, unsigned int type,
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unsigned int pixelformat);
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int v4l2_set_format(int video_fd, unsigned int type, unsigned int pixelformat,
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unsigned int width, unsigned int height);
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int v4l2_create_buffers(int video_fd, unsigned int type,
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unsigned int buffers_count);
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int v4l2_request_buffer(int video_fd, unsigned int type, unsigned int index,
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unsigned int *length, unsigned int *offset);
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int v4l2_queue_buffer(int video_fd, int request_fd, unsigned int type,
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unsigned int index, unsigned int size);
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int v4l2_dequeue_buffer(int video_fd, int request_fd, unsigned int type,
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unsigned int index);
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int v4l2_set_control(int video_fd, int request_fd, unsigned int id, void *data,
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unsigned int size);
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int v4l2_set_stream(int video_fd, unsigned int type, bool enable);
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#endif
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