62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
/*
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* Copyright (C) 2016-2017 Intel Corporation
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* Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _CAMERA3_V4L2_FORMAT_H_
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#define _CAMERA3_V4L2_FORMAT_H_
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#include <linux/videodev2.h>
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#include "UtilityMacros.h"
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NAMESPACE_DECLARATION {
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/**
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* \struct CameraFormatBridge
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* Structure to hold static array of formats with their depths, description
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* and information often needed in image buffer processing.
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* This is derived concept from camera driver, with
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* redefinition of info we are interested.
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*/
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struct CameraFormatBridge {
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unsigned int pixelformat;
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unsigned int depth;
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bool planar;
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bool bayer;
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};
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extern const struct CameraFormatBridge sV4l2PixelFormatBridge[];
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const struct CameraFormatBridge* getCameraFormatBridge(unsigned int fourcc);
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/**
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* return pixels based on bytes
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*
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* commonly used to calculate bytes-per-line as per pixel width
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*/
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int bytesToPixels(int fourcc, int bytes);
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/**
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* return bytes-per-line based on given pixels
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*/
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int pixelsToBytes(int fourcc, int pixels);
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/**
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* Return frame size (in bytes) based on image format description
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*/
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int frameSize(int fourcc, int width, int height);
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const char* v4l2Fmt2Str(int format);
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bool isBayerFormat(int fourcc);
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} NAMESPACE_DECLARATION_END
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#endif// _CAMERA3_V4L2_FORMAT_H_
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