File content as of revision 2:c10029b87439:

#if 0
// example_captureJPEG.cpp
#include "mbed.h"
#include "rtos.h"
#include "BaseUsbHost.h"
#include "LogitechC270.h"
#include "UvcCam.h"
#include "UsbFlashDrive.h"
#include "decodeMJPEG.h"
#include "MyThread.h"

#define IMAGE_BUF_SIZE (1024*8)
#define INTERVAL_S 10
#define SHOT_N 5
#define BASE_PATH "usb"

Serial pc(USBTX, USBRX);
DigitalOut led1(LED1), led2(LED2), led3(LED3), led4(LED4);

class captureJPEG : public MyThread, public decodeMJPEG {
public:
    captureJPEG(BaseUvc* cam) {
        m_cam = cam;
        m_cam->setOnResult(this, &captureJPEG::callback_motion_jpeg);
        interval_t.start();
        shot = 0;
        for(buf_size = IMAGE_BUF_SIZE; ; buf_size -= 128) {
            buf = new uint8_t[buf_size];
            if (buf) {
                break;
            }
        }
        printf("%p buf size: %d\n", buf, buf_size); 
    }
    int shot;    
    Timer interval_t;
protected:    
    virtual void outputJPEG(uint8_t c, int status) {
        if (status == JPEG_START) {
            pos = 0;
            led2 = !led2;
        }
        if (pos < buf_size) {
            buf[pos++] = c;
        }
        if (status == JPEG_END) {
            led3 = !led3;
            if (interval_t.read_ms() > INTERVAL_S*1000) {
                interval_t.reset();                               
                led4 = !led4;
                if (shot < SHOT_N) {
                    char path[32];
                    snprintf(path, sizeof(path), "/%s/image%02d.jpg", BASE_PATH, shot);
                    printf("%d %s %d bytes\n", shot, path, pos);
                    FILE* fp = fopen(path, "wb");
                    if (fp) {
                        fwrite(buf, pos, 1, fp);
                        fclose(fp);
                    }
                    shot++;
                }
            }
        }
    }

    void callback_motion_jpeg(uint16_t frame, uint8_t* buf, int len) {
        inputPacket(buf, len);
        if (buf[1]&1) { // FID
            led1 = !led1;
        }
        if (buf[1]&2) { // EOF
            led2 = !led2;
        }
    }

    virtual void run() {
        while(true) {
            if (m_cam) {
                m_cam->poll();
            }
        }
    }
    uint8_t* buf;
    int buf_size;
    int pos;
    BaseUvc* m_cam;
};

int main() {
    pc.baud(921600);
    printf("%s\n", __FILE__);

    BaseUvc* cam = NULL;
    UsbFlashDrive* drive = NULL;
    BaseUsbHost* usbHost = new BaseUsbHost();
    UsbHub* hub = new UsbHub();
    
    for(int i = 1; i <= MAX_HUB_PORT; i++) {
        ControlEp* ctlEp = hub->GetPortEp(i);
        if (drive == NULL && UsbFlashDrive::check(ctlEp)) {
            drive = new UsbFlashDrive("usb", ctlEp);
        }
        if (cam == NULL && LogitechC270::check(ctlEp)) {
            cam = new LogitechC270(C270_160x120, _5FPS, ctlEp); 
        }
        if (cam == NULL && UvcCam::check(ctlEp)) {
            cam = new UvcCam(UVC_MJPEG, UVC_160x120, _5FPS, ctlEp); 
        }
    }
    if (cam == NULL) {
        error("UVC cam not found\n");
    }
    if (drive == NULL) {
        error("USB flash drive not found\n");
    }
    
    captureJPEG* capture = new captureJPEG(cam);
    printf("captureJPEG: %p %d\n", capture, sizeof(captureJPEG));
    capture->set_stack(DEFAULT_STACK_SIZE+256);
    capture->start();

    for(int n = 0; ; n++) {
        printf("%d captureJPEG stack used: %d/%d bytes, interval %d/%d %d/%d sec\n", 
            n, capture->stack_used(), capture->stack_size(), 
            capture->shot, SHOT_N, capture->interval_t.read_ms()/1000, INTERVAL_S);
        printf("CC:");
        for(int i = 0; i < 16; i++) {
            printf(" %u", cam->report_cc_count[i]);
        }
        printf("\n");
        printf("PS:");
        for(int i = 0; i < 16; i++) {
            printf(" %u", cam->report_ps_cc_count[i]);
        }
        printf("\n");
        Thread::wait(3000);
    }
}

#endif