BaseJpegDeocde exampe program
Dependencies: BaseJpegDecode Terminal BaseUsbHost mbed mbed-rtos
Fork of BaseJpegDecode by
example1_c270.cpp@0:7121d9fb45f4, 2012-10-07 (annotated)
- Committer:
- va009039
- Date:
- Sun Oct 07 12:03:40 2012 +0000
- Revision:
- 0:7121d9fb45f4
- Child:
- 2:697ebeb8336f
first commit
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
va009039 | 0:7121d9fb45f4 | 1 | #if 1 |
va009039 | 0:7121d9fb45f4 | 2 | #include "mbed.h" |
va009039 | 0:7121d9fb45f4 | 3 | #include "BaseJpegDecode.h" |
va009039 | 0:7121d9fb45f4 | 4 | #include "uvc.h" |
va009039 | 0:7121d9fb45f4 | 5 | |
va009039 | 0:7121d9fb45f4 | 6 | // Logitech C270 |
va009039 | 0:7121d9fb45f4 | 7 | #define WIDTH 320 |
va009039 | 0:7121d9fb45f4 | 8 | #define HEIGHT 176 |
va009039 | 0:7121d9fb45f4 | 9 | |
va009039 | 0:7121d9fb45f4 | 10 | #define ASSERT(A) while(!(A)){fprintf(stderr,"\n\n%s@%d %s ASSERT!\n\n",__PRETTY_FUNCTION__,__LINE__,#A);exit(1);}; |
va009039 | 0:7121d9fb45f4 | 11 | |
va009039 | 0:7121d9fb45f4 | 12 | DigitalOut led1(LED1), led2(LED2), led3(LED3), led4(LED4); |
va009039 | 0:7121d9fb45f4 | 13 | Serial pc(USBTX, USBRX); |
va009039 | 0:7121d9fb45f4 | 14 | |
va009039 | 0:7121d9fb45f4 | 15 | class CalcCenter : public BaseJpegDecode { |
va009039 | 0:7121d9fb45f4 | 16 | public: |
va009039 | 0:7121d9fb45f4 | 17 | int y_center, x_center; |
va009039 | 0:7121d9fb45f4 | 18 | int m_x_sum, m_y_sum, m_sum; |
va009039 | 0:7121d9fb45f4 | 19 | int8_t m_buf[WIDTH/16*HEIGHT/8]; |
va009039 | 0:7121d9fb45f4 | 20 | virtual void outputDC(int mcu, int block, int value) { |
va009039 | 0:7121d9fb45f4 | 21 | if (mcu >= (WIDTH/16*HEIGHT/8)) { |
va009039 | 0:7121d9fb45f4 | 22 | return; |
va009039 | 0:7121d9fb45f4 | 23 | } |
va009039 | 0:7121d9fb45f4 | 24 | if (block == 3) { // 0-1:Y 2:Cb 3:Cr |
va009039 | 0:7121d9fb45f4 | 25 | m_buf[mcu] = value; // debug |
va009039 | 0:7121d9fb45f4 | 26 | if (value >= 2) { // red |
va009039 | 0:7121d9fb45f4 | 27 | m_x_sum += value*(mcu%(WIDTH/16)); |
va009039 | 0:7121d9fb45f4 | 28 | m_y_sum += value*(mcu/(WIDTH/16)); |
va009039 | 0:7121d9fb45f4 | 29 | m_sum += value; |
va009039 | 0:7121d9fb45f4 | 30 | } |
va009039 | 0:7121d9fb45f4 | 31 | } |
va009039 | 0:7121d9fb45f4 | 32 | } |
va009039 | 0:7121d9fb45f4 | 33 | virtual void outputAC(int mcu, int block, int scan, int value){}; |
va009039 | 0:7121d9fb45f4 | 34 | virtual void outputMARK(uint8_t c){ |
va009039 | 0:7121d9fb45f4 | 35 | if (c == 0xd9) { // EOI |
va009039 | 0:7121d9fb45f4 | 36 | if(m_sum == 0) { |
va009039 | 0:7121d9fb45f4 | 37 | x_center = y_center = -1; // not found |
va009039 | 0:7121d9fb45f4 | 38 | } else { |
va009039 | 0:7121d9fb45f4 | 39 | x_center = m_x_sum / m_sum; |
va009039 | 0:7121d9fb45f4 | 40 | y_center = m_y_sum / m_sum; |
va009039 | 0:7121d9fb45f4 | 41 | } |
va009039 | 0:7121d9fb45f4 | 42 | m_x_sum = m_y_sum = m_sum = 0; // reset |
va009039 | 0:7121d9fb45f4 | 43 | led2 = !led2; |
va009039 | 0:7121d9fb45f4 | 44 | } |
va009039 | 0:7121d9fb45f4 | 45 | }; |
va009039 | 0:7121d9fb45f4 | 46 | }; |
va009039 | 0:7121d9fb45f4 | 47 | |
va009039 | 0:7121d9fb45f4 | 48 | CalcCenter* calc = NULL; |
va009039 | 0:7121d9fb45f4 | 49 | |
va009039 | 0:7121d9fb45f4 | 50 | void callback_motion_jpeg(uint16_t frame, uint8_t* buf, int len) |
va009039 | 0:7121d9fb45f4 | 51 | { |
va009039 | 0:7121d9fb45f4 | 52 | if (calc) { |
va009039 | 0:7121d9fb45f4 | 53 | calc->input(buf+12, len-12); |
va009039 | 0:7121d9fb45f4 | 54 | } |
va009039 | 0:7121d9fb45f4 | 55 | led1 = buf[1]&1; // FID |
va009039 | 0:7121d9fb45f4 | 56 | } |
va009039 | 0:7121d9fb45f4 | 57 | |
va009039 | 0:7121d9fb45f4 | 58 | int main() { |
va009039 | 0:7121d9fb45f4 | 59 | pc.baud(921600); |
va009039 | 0:7121d9fb45f4 | 60 | printf("%s\n", __FILE__); |
va009039 | 0:7121d9fb45f4 | 61 | |
va009039 | 0:7121d9fb45f4 | 62 | calc = new CalcCenter; |
va009039 | 0:7121d9fb45f4 | 63 | ASSERT(calc); |
va009039 | 0:7121d9fb45f4 | 64 | uvc* cam = new uvc; |
va009039 | 0:7121d9fb45f4 | 65 | ASSERT(cam); |
va009039 | 0:7121d9fb45f4 | 66 | cam->SetImageSize(WIDTH, HEIGHT); |
va009039 | 0:7121d9fb45f4 | 67 | cam->SetFrameInterval(2000000); // 5.0fps |
va009039 | 0:7121d9fb45f4 | 68 | cam->setOnResult(callback_motion_jpeg); |
va009039 | 0:7121d9fb45f4 | 69 | ASSERT(cam->setup() >= 0); |
va009039 | 0:7121d9fb45f4 | 70 | while(1) { |
va009039 | 0:7121d9fb45f4 | 71 | printf("\n"); // start debug dump |
va009039 | 0:7121d9fb45f4 | 72 | for(int y = 0; y < HEIGHT/8; y++) { |
va009039 | 0:7121d9fb45f4 | 73 | for(int x = 0; x < WIDTH/16; x++) { |
va009039 | 0:7121d9fb45f4 | 74 | printf("%+3d,", calc->m_buf[y*WIDTH/16+x]); |
va009039 | 0:7121d9fb45f4 | 75 | cam->poll(); |
va009039 | 0:7121d9fb45f4 | 76 | } |
va009039 | 0:7121d9fb45f4 | 77 | printf("\n"); |
va009039 | 0:7121d9fb45f4 | 78 | } |
va009039 | 0:7121d9fb45f4 | 79 | printf("red:(%d,%d)\n", calc->x_center, calc->y_center); |
va009039 | 0:7121d9fb45f4 | 80 | cam->wait_ms(500); |
va009039 | 0:7121d9fb45f4 | 81 | led3 = !led3; |
va009039 | 0:7121d9fb45f4 | 82 | } |
va009039 | 0:7121d9fb45f4 | 83 | } |
va009039 | 0:7121d9fb45f4 | 84 | #endif |