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LogitechC270 webcam class driver alpha version
Fork of USBHostMSD_HelloWorld by
main.cpp
- Committer:
- va009039
- Date:
- 2013-03-16
- Revision:
- 9:fecabade834a
- Parent:
- 4:f8a5c8aa895a
- Child:
- 10:387c49b2fc7e
File content as of revision 9:fecabade834a:
// 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(); } } }