/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx.h"
#include "platform_config.h"
//#include "ili9320.h"
#include "OV7660.h"
//#include "delay.h"
#include <string.h>
#include <stdio.h>#include "jpeglib.h"//#include <stm32f4xx.h>
#include "FSMC_SUB.h"
#include "stm32f4xx_fsmc.h"
#include "stm32f4xx_rcc.h"
#include "stm32f4xx_gpio.h"
#include "stm32f4xx_syscfg.h"
#include "delay.h"
#include "ascii.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
ErrorStatus HSEStartUpStatus;
#define WIDTH 320//图片宽度
#define HEIGHT 240//图片高度
#define QUALITY 0.5//压缩质量
#define RGB565_MASK_RED 0xF800//获取红色分量
#define RGB565_MASK_GREEN 0x07E0//获取绿色分量
#define RGB565_MASK_BLUE 0x001F//获取蓝色分量
//char ID_Mode=0x02;
u16 max_x=240,max_y=320;typedef struct
{
vu16 LCD_REG;
vu16 LCD_RAM;
} LCD_TypeDef;
u16 Txt_Color = 0xf800;//定义文本颜色
u16 Back_Ground =0xffff ;//定义背景色
u16 POINT_COLOR=0x001f;//定义画笔绿色#define LCD_Data_Addr ((uint32_t)0x60020000) //数据地址
#define LCD_Reg_Addr ((uint32_t)0x60000000) //寄存器地址
#define LCD_BASE ((u32)(0x60020000 | 0x60000000))
#define LCD ((LCD_TypeDef *) LCD_BASE)
/* Private function prototypes -----------------------------------------------*/
void Demo_Init(void);
/* Private function prototypes -----------------------------------------------*/
void RCC_Configuration(void);
void NVIC_Configuration(void);
void GPIO_Configuration(void);
void USART_Configuration(void);
/* Private functions ---------------------------------------------------------*///加入的程序
extern void Compression(int width,int height,float quality); //设定图像要压缩图像的宽高,压缩质量 //需加入main2.c文件做子文件
extern unsigned int pt_buf;//缓冲区指针
extern unsigned char JPG_enc_buf[20000];//RGB565压缩后jpeg数据输出缓冲
extern unsigned char inbuf_buf[230400] __attribute__((at(0x68000000)));//输入缓冲 //需加入main2.c文件做子文件
void RGB565TORGB24(u32 num,u16 Pixel); //加入的程序void RGB565TORGB24(u32 num,u16 Pixel)
{
u32 Addr=0;
Addr=(num-1)*3;
inbuf_buf[Addr]=(Pixel&RGB565_MASK_RED)>>11; //R vs?? 获取蓝色分量存入buf右移11位,变为最低5位
inbuf_buf[Addr+1]=(Pixel&RGB565_MASK_GREEN)>>5; //G 获取绿色分量存入buf右移5位
inbuf_buf[Addr+2]=(Pixel&RGB565_MASK_BLUE); //B
inbuf_buf[Addr]<<=3;
inbuf_buf[Addr+1]<<=2;
inbuf_buf[Addr+2]<<=3;
}
/*******************************************************************************
* Function Name : main
* Description : Main program
* Input : None
* Output : None
* Return : None
*******************************************************************************/
u32 TimerCnt = 0; //计数
u16 value; //unsigned int
u16 val;extern unsigned char OV7660_init(void);int main(void)
{
u16 i=0; //串口，输入的字符
static unsigned int temp7660 = 0;#ifdef DEBUG
debug();
#endif
Demo_Init();
/* Configure the system clocks */
RCC_Configuration();
/* NVIC Configuration */
NVIC_Configuration();
/* Configure the GPIOs */
GPIO_Configuration();
/* Configure the USART1 */
USART_Configuration();
printf("\r\n Welcome to www.PowerAVR.com \r\n");
printf("\r\n Please Input Character From Keyboard \r\n");
// LCD_CtrlLinesConfig();
TFT_GPIO_Config();
FSMC_NORAMTiminginit();
Lcd_Init();
TFT_Clear(0xf800); delay_ms(1000);
while(1!=OV7660_init()); // 初始化ov7660
TimerCnt = 0;
while(TimerCnt < 76800) //320*240=76800
{
LCD_WriteRAM(0x0000); //TFT GRAM 数据 uint16_t LCD_RD_data(void)
// LCD_RD_data(0x0000);
TimerCnt ++;
}
while(1)
{
TimerCnt = 0;
temp7660 = 0;// CLK_init_ON(); // OV7660 XCLK 开
while(value & 0x0800) value = GPIOC->IDR; // Vsync=H
while((~value) & 0x0800) value = GPIOC->IDR; // Vhync=L
// TFT开窗口
TFT_SetCursor(0,0);
// LCD_WriteReg(0x0050, 0);
LCD_WR_CMD(0x0050, 0);
// LCD_WriteReg(0x0052, 0);
LCD_WR_CMD(0x0052, 0);
// LCD_WriteReg(0x0051, 239);
LCD_WR_CMD(0x0051, 239);
// LCD_WriteReg(0x0053, 319);
LCD_WR_CMD(0x0053, 319);
TFT_SetCursor(0,0);// LCD_WriteRAM_Prepare(); // 开显存
delay_ms(10);
// CLK_init_OFF(); //OV7660 XCLK 关
while(TimerCnt < 76800)
{
RCLK_L;
RCLK_H;
value = GPIOC->IDR;
temp7660 ++;
if(value & 0x0100) // HREF = H
{
if(temp7660 == 1)// 高字节
{
val = value << 8;
}
else // 低字节
{
val |= (value & 0x00ff);
temp7660 = 0;
// LCD_WriteRAM(val); //TFT GRAM 数据
// LCD_RD_data(val);
RGB565TORGB24(TimerCnt,val);/////
//val2=ili9320_BGR2RGB(val);
TimerCnt ++;
}
}
if(temp7660 ==0) RGB565TORGB24(TimerCnt,val);
}
#ifdef MYDEBUG
SendAString("开始压缩\r\n");
#endif
Compression(WIDTH,HEIGHT,QUALITY);//压缩
#ifdef MYDEBUG
SendAString("压缩完毕\r\n");
#endif //加入的程序
if(USART_GetFlagStatus(USART1,USART_IT_RXNE)==SET)
{ //while(USART_GetFlagStatus(USART1,USART_IT_RXNE)!=SET)
{
i = USART_ReceiveData(USART1);
printf("%c\n",i&0xFF); /* print the input char */
}
}
}
}
/*******************************************************************************
* Function Name : assert_failed
* Description : Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* Input : - file: pointer to the source file name
* - line: assert_param error line source number
* Output : None
* Return : None
*******************************************************************************/
void assert_failed(u8* file, u32 line)
{
/* User can add his own implementation to report the file name and line number */
printf("\n\r Wrong parameter value detected on\r\n");
printf(" file %s\r\n", file);
printf(" line %d\r\n", line);
/* Infinite loop */
/* while (1)
{
} */
}
#endif
int fputc(int ch, FILE *f)
{
/* Place your implementation of fputc here */
/* e.g. write a character to the USART */
USART_SendData(USART1, (u8) ch); /* Loop until the end of transmission */
while(USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET)
{
} return ch;
}/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/
#include "stm32f4xx.h"
#include "platform_config.h"
//#include "ili9320.h"
#include "OV7660.h"
//#include "delay.h"
#include <string.h>
#include <stdio.h>#include "jpeglib.h"//#include <stm32f4xx.h>
#include "FSMC_SUB.h"
#include "stm32f4xx_fsmc.h"
#include "stm32f4xx_rcc.h"
#include "stm32f4xx_gpio.h"
#include "stm32f4xx_syscfg.h"
#include "delay.h"
#include "ascii.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
ErrorStatus HSEStartUpStatus;
#define WIDTH 320//图片宽度
#define HEIGHT 240//图片高度
#define QUALITY 0.5//压缩质量
#define RGB565_MASK_RED 0xF800//获取红色分量
#define RGB565_MASK_GREEN 0x07E0//获取绿色分量
#define RGB565_MASK_BLUE 0x001F//获取蓝色分量
//char ID_Mode=0x02;
u16 max_x=240,max_y=320;typedef struct
{
vu16 LCD_REG;
vu16 LCD_RAM;
} LCD_TypeDef;
u16 Txt_Color = 0xf800;//定义文本颜色
u16 Back_Ground =0xffff ;//定义背景色
u16 POINT_COLOR=0x001f;//定义画笔绿色#define LCD_Data_Addr ((uint32_t)0x60020000) //数据地址
#define LCD_Reg_Addr ((uint32_t)0x60000000) //寄存器地址
#define LCD_BASE ((u32)(0x60020000 | 0x60000000))
#define LCD ((LCD_TypeDef *) LCD_BASE)
/* Private function prototypes -----------------------------------------------*/
void Demo_Init(void);
/* Private function prototypes -----------------------------------------------*/
void RCC_Configuration(void);
void NVIC_Configuration(void);
void GPIO_Configuration(void);
void USART_Configuration(void);
/* Private functions ---------------------------------------------------------*///加入的程序
extern void Compression(int width,int height,float quality); //设定图像要压缩图像的宽高,压缩质量 //需加入main2.c文件做子文件
extern unsigned int pt_buf;//缓冲区指针
extern unsigned char JPG_enc_buf[20000];//RGB565压缩后jpeg数据输出缓冲
extern unsigned char inbuf_buf[230400] __attribute__((at(0x68000000)));//输入缓冲 //需加入main2.c文件做子文件
void RGB565TORGB24(u32 num,u16 Pixel); //加入的程序void RGB565TORGB24(u32 num,u16 Pixel)
{
u32 Addr=0;
Addr=(num-1)*3;
inbuf_buf[Addr]=(Pixel&RGB565_MASK_RED)>>11; //R vs?? 获取蓝色分量存入buf右移11位,变为最低5位
inbuf_buf[Addr+1]=(Pixel&RGB565_MASK_GREEN)>>5; //G 获取绿色分量存入buf右移5位
inbuf_buf[Addr+2]=(Pixel&RGB565_MASK_BLUE); //B
inbuf_buf[Addr]<<=3;
inbuf_buf[Addr+1]<<=2;
inbuf_buf[Addr+2]<<=3;
}
/*******************************************************************************
* Function Name : main
* Description : Main program
* Input : None
* Output : None
* Return : None
*******************************************************************************/
u32 TimerCnt = 0; //计数
u16 value; //unsigned int
u16 val;extern unsigned char OV7660_init(void);int main(void)
{
u16 i=0; //串口，输入的字符
static unsigned int temp7660 = 0;#ifdef DEBUG
debug();
#endif
Demo_Init();
/* Configure the system clocks */
RCC_Configuration();
/* NVIC Configuration */
NVIC_Configuration();
/* Configure the GPIOs */
GPIO_Configuration();
/* Configure the USART1 */
USART_Configuration();
printf("\r\n Welcome to www.PowerAVR.com \r\n");
printf("\r\n Please Input Character From Keyboard \r\n");
// LCD_CtrlLinesConfig();
TFT_GPIO_Config();
FSMC_NORAMTiminginit();
Lcd_Init();
TFT_Clear(0xf800); delay_ms(1000);
while(1!=OV7660_init()); // 初始化ov7660
TimerCnt = 0;
while(TimerCnt < 76800) //320*240=76800
{
LCD_WriteRAM(0x0000); //TFT GRAM 数据 uint16_t LCD_RD_data(void)
// LCD_RD_data(0x0000);
TimerCnt ++;
}
while(1)
{
TimerCnt = 0;
temp7660 = 0;// CLK_init_ON(); // OV7660 XCLK 开
while(value & 0x0800) value = GPIOC->IDR; // Vsync=H
while((~value) & 0x0800) value = GPIOC->IDR; // Vhync=L
// TFT开窗口
TFT_SetCursor(0,0);
// LCD_WriteReg(0x0050, 0);
LCD_WR_CMD(0x0050, 0);
// LCD_WriteReg(0x0052, 0);
LCD_WR_CMD(0x0052, 0);
// LCD_WriteReg(0x0051, 239);
LCD_WR_CMD(0x0051, 239);
// LCD_WriteReg(0x0053, 319);
LCD_WR_CMD(0x0053, 319);
TFT_SetCursor(0,0);// LCD_WriteRAM_Prepare(); // 开显存
delay_ms(10);
// CLK_init_OFF(); //OV7660 XCLK 关
while(TimerCnt < 76800)
{
RCLK_L;
RCLK_H;
value = GPIOC->IDR;
temp7660 ++;
if(value & 0x0100) // HREF = H
{
if(temp7660 == 1)// 高字节
{
val = value << 8;
}
else // 低字节
{
val |= (value & 0x00ff);
temp7660 = 0;
// LCD_WriteRAM(val); //TFT GRAM 数据
// LCD_RD_data(val);
RGB565TORGB24(TimerCnt,val);/////
//val2=ili9320_BGR2RGB(val);
TimerCnt ++;
}
}
if(temp7660 ==0) RGB565TORGB24(TimerCnt,val);
}
#ifdef MYDEBUG
SendAString("开始压缩\r\n");
#endif
Compression(WIDTH,HEIGHT,QUALITY);//压缩
#ifdef MYDEBUG
SendAString("压缩完毕\r\n");
#endif //加入的程序
if(USART_GetFlagStatus(USART1,USART_IT_RXNE)==SET)
{ //while(USART_GetFlagStatus(USART1,USART_IT_RXNE)!=SET)
{
i = USART_ReceiveData(USART1);
printf("%c\n",i&0xFF); /* print the input char */
}
}
}
}
/*******************************************************************************
* Function Name : assert_failed
* Description : Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* Input : - file: pointer to the source file name
* - line: assert_param error line source number
* Output : None
* Return : None
*******************************************************************************/
void assert_failed(u8* file, u32 line)
{
/* User can add his own implementation to report the file name and line number */
printf("\n\r Wrong parameter value detected on\r\n");
printf(" file %s\r\n", file);
printf(" line %d\r\n", line);
/* Infinite loop */
/* while (1)
{
} */
}
#endif
int fputc(int ch, FILE *f)
{
/* Place your implementation of fputc here */
/* e.g. write a character to the USART */
USART_SendData(USART1, (u8) ch); /* Loop until the end of transmission */
while(USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET)
{
} return ch;
}/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/
2 改改QUALITY看有没有变化
3 看Compression是怎么写的
1.压缩：
/*************************************************************************
*函数描述：全局变量和位定义
*参数入口：
*参数出口:
*函数说明:
*************************************************************************/
unsigned char JPG_enc_buf[20000];//jpeg 输出
volatile unsigned int pt_buf;//缓冲区指针
//__no_init
unsigned char inbuf_buf[230400] __attribute__((at(0x68000000)));//输入缓冲
//注意：原始RGB565数据和输入缓冲用同一段外扩RAM！我这样做是节省空间!!
jpeg_compress_info info1;
JQUANT_TBL JQUANT_TBL_2[2]; //量化表
JHUFF_TBL JHUFF_TBL_4[4]; //哈弗曼表
unsigned char dcttab[3][512]; //DCT变换表
//压缩
void Compression(int width,int height,float quality)
{
jpeg_compress_info *cinfo; pt_buf=0;
cinfo=jpeg_create_compress(); //cinfo:图像输入信息
cinfo->image_width=width;//设定图片大小
cinfo->image_height=height;
cinfo->output=JPG_enc_buf;//设定输出缓冲位置
jpeg_set_default(cinfo,quality);
jpeg_start_compress(cinfo);
while(cinfo->next_line<cinfo->image_height)//一行一行的扫描进输入缓冲中
{
jpeg_write_scanline(cinfo,&inbuf_buf[(cinfo->next_line*cinfo->image_width*3)]);
}
jpeg_finish_compress(cinfo);
}
2.量化
//写入量化表
void jmkr_write_quant_table(jpeg_compress_info *cinfo)
{
int i, j;
for (i=0; i<NUM_QUANT_TBLS; i++)
{
if (!cinfo->quant_table[i])
continue;
/* er */
jutl_write_byte(0xFF, cinfo->output); //quant table defination
jutl_write_byte(DQT, cinfo->output);
/* length, always 43h */
jutl_write_byte(0x00, cinfo->output);
jutl_write_byte(0x43, cinfo->output);
/* ouput Pq & Tq */
jutl_write_byte(i&0xFF, cinfo->output);
/* all element */
for (j=0; j<DCTSIZE2; j++)
{
UINT8 Q = cinfo->quant_table[i]->quantval[j];
jutl_write_byte(Q, cinfo->output);
}
}
}
void jint_add_quant_table( jpeg_compress_info *cinfo,
unsigned int which_tbl, const UINT16 *base_tbl,
float quality)
{
int i;
DCTVAL *qtblptr;
cinfo->quant_table[which_tbl] = &JQUANT_TBL_2[which_tbl];//(JQUANT_TBL *)malloc(sizeof(JQUANT_TBL)); qtblptr = cinfo->quant_table[which_tbl]->quantval;
for (i=0; i<DCTSIZE2; i++)
{
qtblptr[i] = (INT16)(base_tbl[i] * quality + 0.5);//根据压缩质量产生新的量化表
}
jutl_zigzag_sort(qtblptr);
}
void jint_std_quant_tables( jpeg_compress_info *cinfo )
{
const UINT16 std_luminance_quant_tbl[DCTSIZE2] =
{
16, 11, 10, 16, 24, 40, 51, 61,
12, 12, 14, 19, 26, 58, 60, 55,
14, 13, 16, 24, 40, 57, 69, 56,
14, 17, 22, 29, 51, 87, 80, 62,
18, 22, 37, 56, 68, 109, 103, 77,
24, 35, 55, 64, 81, 104, 113, 92,
49, 64, 78, 87, 103, 121, 120, 101,
72, 92, 95, 98, 112, 100, 103, 99
};
const UINT16 std_chrominance_quant_tbl[DCTSIZE2] =
{
17, 18, 24, 47, 99, 99, 99, 99,
18, 21, 26, 66, 99, 99, 99, 99,
24, 26, 56, 99, 99, 99, 99, 99,
47, 66, 99, 99, 99, 99, 99, 99,
99, 99, 99, 99, 99, 99, 99, 99,
99, 99, 99, 99, 99, 99, 99, 99,
99, 99, 99, 99, 99, 99, 99, 99,
99, 99, 99, 99, 99, 99, 99, 99
};
jint_add_quant_table(cinfo, 0, std_luminance_quant_tbl, cinfo->quality);
jint_add_quant_table(cinfo, 1, std_chrominance_quant_tbl, cinfo->quality);
}这是我的压缩和量化程序，大侠帮忙看一下吧。在这论坛上有点慢，我留个QQ号码，可以再QQ上讨论吗？565690710.期待好心人~~~