75 lines
2.3 KiB
C
Executable File
75 lines
2.3 KiB
C
Executable File
/*
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* Copyright (c) 2008-2016 Allwinner Technology Co. Ltd.
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* All rights reserved.
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*
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* File : jpegdecode.h
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* Description : jpegdecode
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* History :
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*
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*/
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#ifndef JPEG_DECODE
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#define JPEG_DECODE
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "vdecoder.h" //* video decode library in "libcedarc/include/"
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#include "memoryAdapter.h"
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typedef enum JpegDecodeScaleDownRatio{
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JPEG_DECODE_SCALE_DOWN_1 = 0, /*no scale down*/
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JPEG_DECODE_SCALE_DOWN_2 = 1, /*scale down 1/2*/
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JPEG_DECODE_SCALE_DOWN_4 = 2, /*scale down 1/4*/
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JPEG_DECODE_SCALE_DOWN_8 = 3, /*scale down 1/8*/
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}JpegDecodeScaleDownRatio;
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typedef enum JpegDecodeOutputDataType
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{
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JpegDecodeOutputDataNV21 = 1,
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JpegDecodeOutputDataNV12 = 2,
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JpegDecodeOutputDataYU12 = 3,
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JpegDecodeOutputDataYV12 = 4,
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JpegDecodeOutputDataRGB565 = 5,
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}JpegDecodeOutputDataType;
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typedef struct ImgFrame
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{
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uint32_t mWidth; //the width which contains aligned buffer
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uint32_t mHeight; //the height which contains aligned buffer
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uint32_t mDisplayWidth; //the actural frame width
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uint32_t mDisplayHeight; //the actural frame height
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uint32_t mYuvSize; // Number of bytes in mYuvData
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uint8_t* mYuvData; // Actual yuv data
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uint32_t mRGB565Size; // Number of bytes in mRGB565Data
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uint8_t* mRGB565Data; // Actual RGB565 data
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int32_t mRotationAngle; // rotation angle, clockwise
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}ImgFrame;
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typedef struct JpegDecoderContext
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{
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VideoDecoder* mVideoDecoder;
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ImgFrame mImgFrame;
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char* mUrl;
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int mScaleDownEn;
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int mHorizonScaleDownRatio;
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int mVerticalScaleDownRatio;
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int mDecodedPixFormat;
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int mOutputDataType;
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struct ScMemOpsS *memops;
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}JpegDecoderContext;
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typedef void* JpegDecoder;
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JpegDecoder* JpegDecoderCreate();
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void JpegDecoderDestory(JpegDecoder* v);
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void JpegDecoderSetDataSource(JpegDecoder* v, const char* pUrl,JpegDecodeScaleDownRatio scaleRatio,JpegDecodeOutputDataType outputType);
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ImgFrame *JpegDecoderGetFrame(JpegDecoder* v);
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#ifdef __cplusplus
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}
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#endif
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#endif
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