94 lines
2.5 KiB
C
94 lines
2.5 KiB
C
#ifndef __SWM341_JPEG_H__
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#define __SWM341_JPEG_H__
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#include <stdint.h>
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typedef struct {
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uint8_t DoneIEn; // 解码完成中断使能
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uint8_t ErrorIEn; // 解码出错中断使能
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} JPEG_InitStructure;
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typedef struct {
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uint8_t format; // 解码输出格式，可取值JPEG_OUT_YUV、JPEG_OUT_YUVsp、JPEG_OUT_XRGB888、...
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/* for RGB output */
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uint8_t dither; // RGB565 dithering enable
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uint32_t RGBAddr;
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/* for YUV output */
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uint32_t YAddr;
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uint32_t CbAddr;
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uint32_t CrAddr;
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} jpeg_outset_t; // output setting
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#define JPEG_OUT_YUV 0
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#define JPEG_OUT_YUVsp 1 // semi-planar
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#define JPEG_OUT_XRGB888 2
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#define JPEG_OUT_RGB888 3
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#define JPEG_OUT_RGB565 4
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#define JPEG_OUT_YVU (0 | (1 << 4))
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#define JPEG_OUT_YVUsp (1 | (1 << 4))
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#define JPEG_OUT_XBGR888 (2 | (1 << 5))
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#define JPEG_OUT_BGR888 (3 | (1 << 5))
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#define JPEG_OUT_BGR565 (4 | (1 << 5))
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#define JPEG_OUT_BGRX888 (2 | (1 << 6))
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#define JPEG_OUT_RGBX888 (2 | (1 << 5) | (1 << 6))
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#define JPEG_FMT_H2V2 0 // YUV420
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#define JPEG_FMT_H2V1 1 // YUV422
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#define JPEG_FMT_H1V1 2 // YUV444
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#define JFIF_QTAB_MAX 3
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#define JFIF_HTAB_MAX 2
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typedef struct {
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uint16_t Width;
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uint16_t Height;
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struct {
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uint8_t id; // 1：Y 2：Cb 3：Cr
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uint8_t hfactor; // 颜色分量水平采样因子
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uint8_t vfactor; // 颜色分量垂直采样因子
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uint8_t qtab_id; // 颜色分量使用的量化表ID
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uint8_t htab_id_dc; // 直流分量使用的霍夫曼表ID
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uint8_t htab_id_ac; // 交流分量使用的霍夫曼表ID
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} CompInfo[3]; // Component Information
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uint8_t CompCnt;
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uint8_t QTable[JFIF_QTAB_MAX][64];
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uint8_t QTableCnt;
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struct {
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struct {
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uint16_t codeWord[16];
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uint8_t codeLen[16];
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uint8_t codeVal[16];
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} DC;
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struct {
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uint16_t codeWord[162];
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uint8_t codeLen[162];
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uint8_t codeVal[162];
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} AC;
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} HTable[JFIF_HTAB_MAX];
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uint8_t HTableCnt;
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uint32_t CodeAddr; // 待解码数据
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uint32_t CodeLen;
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} jfif_info_t;
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void JPEG_Init(JPEG_TypeDef * JPEGx, JPEG_InitStructure * initStruct);
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void JPEG_Decode(JPEG_TypeDef * JPEGx, jfif_info_t * jfif_info, jpeg_outset_t * jpeg_outset);
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uint32_t JPEG_DecodeBusy(JPEG_TypeDef * JPEGx);
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#endif //__SWM341_JPEG_H__
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