运行前需要创建两个目录 ， image用来存放需要处理的图片 ， outfile用来存放处理过后的文件 。这种处理文件批处理方式很暴力 ， 偶尔用用还是可以的 。
5、IO控制小程序
嵌入式设备系统一般为了节省空间 ， 一般都会对系统进行裁剪 ， 所以很多有用的命令都会被删除 。
在嵌入式设备中要调试代码也是比较麻烦的 ， 一般只能看串口打印 。现在写了个小程序 ， 专门用来查看和控制海思Hi3520DV300芯片的IO电平状态 。
/*=============================================================================#     FileName: Hi3520_IO_CTRL.cpp#         Desc: Hi3520DV300 IO Write and  Read#       Author: Caibiao Lee#      Version: #   LastChange: 2018-11-30#      History:=============================================================================*/#include <stdio.h>#include <stdlib.h>#include "hstGpioAL.h" int PrintfInputTips(char *ps8Name){ printf("=========== error!!! ========nn"); printf("usage Write: %s GPIO bit value n", ps8Name); printf("usage Read : %s GPIO bit n", ps8Name); printf("eg Write 1 to GPIO1_bit02  :     %s 1 2 1n", ps8Name); printf("eg Read  GPIO1_bit02 Value :     %s 1 2 nn", ps8Name);  printf("=============BT20==================n") printf("USB HUB    GPIO_0_2  1_UP; 0_Down n"); printf("RESET_HD   GPIO_13_0 0_EN; 1_disENn"); printf("Power_HD   GPIO_13_3 1_UP; 0_Down n"); return 0;} int main(int argc, char **argv){ if((3!=argc)&&(4!=argc)) {  PrintfInputTips(argv[0]);  return -1; }  unsigned char l_u8GPIONum = 0; unsigned char l_u8GPIOBit = 0; unsigned char l_u8SetValue = 0;  GPIO_GROUP_E  l_eGpioGroup; GPIO_BIT_E   l_eBit; GPIO_DATA_E   l_eData;  l_u8GPIONum   = atoi(argv[1]); l_u8GPIOBit   = atoi(argv[2]);  if(l_u8GPIONum<14) {  l_eGpioGroup = (GPIO_GROUP_E)l_u8GPIONum; }else {  printf("l_u8GPIONum error l_u8GPIONum = %dn",l_u8GPIONum);  return -1; };  if(l_u8GPIOBit<8) {  l_eBit = (GPIO_BIT_E)l_u8GPIOBit; }else {  printf("l_u8GPIOBit error l_u8GPIOBit = %dn",l_u8GPIOBit);  return -1; }  if(NULL!=argv[3]) {  l_u8SetValue = atoi(argv[3]);  if(0==l_u8SetValue)  {   l_eData = (GPIO_DATA_E)l_u8SetValue;  }else if(1==l_u8SetValue)  {   l_eData = (GPIO_DATA_E)l_u8SetValue;  }else  {   printf("l_u8SetValue error l_u8SetValue = %dn",l_u8SetValue);  } }  if(3==argc)                                                        {/**read**/                                                                                                                                                           printf("read GPIO%d Bit%d n",l_u8GPIONum,l_u8GPIOBit);                   /**set input**/                                                       HstGpio_Set_Direction(l_eGpioGroup, l_eBit, GPIO_INPUT);                                                                                                                       /**read **/                                                                                    char l_s8bit_val = 0;                                                                          HstGpio_Get_Value(l_eGpioGroup, l_eBit, &l_s8bit_val);                                                                                                                                        printf("read Data = %d n",l_s8bit_val);                                                                                                                                                      }else if(4==argc)                                                                                {/**write**/                                                                                                                                                                                   printf("Write GPIO %d; Bit %d; Value %dn",l_u8GPIONum,l_u8GPIOBit,l_u8SetValue);                                                                                                                 /***set IO output*/                                                                              HstGpio_Set_Direction(l_eGpioGroup, l_eBit, GPIO_OUPUT);                                                                                                                                          /**Write To IO**/     HstGpio_Set_Value(l_eGpioGroup,l_eBit,l_eData);   }else                                               {                                                                                                                                                                                                 }  return 0; }