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LogitechC270 webcam class driver alpha version
Fork of USBHostMSD_HelloWorld by
Diff: main.cpp
- Revision:
- 10:387c49b2fc7e
- Parent:
- 9:fecabade834a
- Child:
- 11:6a8eef89eb22
diff -r fecabade834a -r 387c49b2fc7e main.cpp --- a/main.cpp Sat Mar 16 13:07:55 2013 +0000 +++ b/main.cpp Sun Mar 17 13:22:13 2013 +0000 @@ -1,135 +1,44 @@ -// USBHostC270_HelloWorld/main.cpp -#include "mbed.h" -#include "USBHostMSD.h" -#include "USBHostC270.h" -#include "decodeMJPEG.h" -#include "MyThread.h" - -#define IMAGE_BUF_SIZE (1024*3) - -Serial pc(USBTX, USBRX); -DigitalOut led1(LED1),led2(LED2),led3(LED3); - -struct ImageBuffer { - int pos; - uint8_t buf[IMAGE_BUF_SIZE]; - void clear() { pos = 0; } - int size() { return pos; } - uint8_t get(int pos) { return buf[pos]; } - void put(uint8_t c) { - if (pos < sizeof(buf)) { - buf[pos++] = c; - } - } -}; - -Mail<ImageBuffer, 1> mail_box; -class captureJPEG : public MyThread, public decodeMJPEG { -public: - captureJPEG(BaseUvc* cam) : m_cam(cam) { - m_buf = NULL; - m_cam->setOnResult(this, &captureJPEG::callback_motion_jpeg); - } -private: - virtual void outputJPEG(uint8_t c, int status) { - if (m_buf == NULL && status == JPEG_START) { - m_buf = mail_box.alloc(); - if (m_buf) { - m_buf->clear(); - } - } - if (m_buf) { - m_buf->put(c); - if (status == JPEG_END) { - mail_box.put(m_buf); - m_buf = NULL; - led3 = !led3; - } - } - } - - void callback_motion_jpeg(uint16_t frame, uint8_t* buf, int len) { - inputPacket(buf, len); - led1 = buf[1]&1; // FID - if (buf[1]&2) { // EOF - led2 = !led2; - } - } - - virtual void run() { - while(true) { - if (m_cam) { - m_cam->poll(); - } - } - } - ImageBuffer* m_buf; - BaseUvc* m_cam; -}; - -int main() { - pc.baud(921600); - printf("%s\n", __FILE__); - - USBHostMSD* msd = new USBHostMSD("usb"); - while(!msd->connect()) { - Thread::wait(200); - } - - - USBHostC270* cam = new USBHostC270(C270_MJPEG, C270_160x120, _5FPS); - while(!cam->connect()) { - Thread::wait(200); - } - - captureJPEG* capture = new captureJPEG(cam); - capture->set_stack(512); - capture->start(); - - Timer t; - t.reset(); - t.start(); - Timer interval_t; - interval_t.reset(); - interval_t.start(); - int shot = 0; - while(1) { - osEvent evt = mail_box.get(); - if (evt.status == osEventMail) { - ImageBuffer *buf = reinterpret_cast<ImageBuffer*>(evt.value.p); - if (interval_t.read() > 10) { - char path[32]; - snprintf(path, sizeof(path), "/usb/image%02d.jpg", shot % 100); - printf("%d %s %d bytes\n", shot, path, buf->size()); - if (msd->connected()) { - FILE* fp = fopen(path, "wb"); - if (fp) { - for(int i = 0; i < buf->size(); i++) { - fputc(buf->get(i), fp); - } - fclose(fp); - } - } - interval_t.reset(); - shot++; - } - mail_box.free(buf); - } - if (t.read() > 5) { - printf("captureJPEG stack used: %d/%d bytes\n", capture->stack_used(), capture->stack_size()); - printf("CC:"); - for(int i = 0; i < 16; i++) { - printf(" %u", cam->report_cc_count[i]); - } - printf("\nPS:"); - for(int i = 0; i < 16; i++) { - printf(" %u", cam->report_ps_cc_count[i]); - } - printf("\n"); - t.reset(); - } - if (!msd->connected()) { - msd->connect(); - } - } -} +#include "USBHostMSD.h" +#include "USBHostC270.h" + +Serial pc(USBTX, USBRX); +BusOut leds(LED1, LED2, LED3); + +int main() { + pc.baud(921600); + + USBHostMSD* msd = new USBHostMSD("usb"); // USB flash drive + + USBHostC270* cam = new USBHostC270(C270_MJPEG, C270_160x120, _5FPS); // Logitech C270 + while(!cam->connect()) { + Thread::wait(500); + } + + uint8_t buf[1024*3]; + Timer interval_t; + interval_t.reset(); + interval_t.start(); + int shot = 0; + while(1) { + if (interval_t.read() > 10) { + int r = cam->readJPEG(buf, sizeof(buf)); + char path[32]; + snprintf(path, sizeof(path), "/usb/image%02d.jpg", shot % 20); + printf("%d %s %d bytes\n", shot, path, r); + if (msd->connected()) { + FILE* fp = fopen(path, "wb"); + if (fp) { + fwrite(buf, r, 1, fp); + fclose(fp); + } + shot++; + leds = shot % 8; + } + interval_t.reset(); + } + if (!msd->connected()) { + msd->connect(); + } + cam->poll(); + } +}