Norimasa Okamoto
Webcam Server.
Dependencies: uvchost FatFileSystem mbed HTTPServer NetServicesMin
WebcamInput.cpp@0:2b4ea8a138e5, 2012-06-06 (annotated)
- Committer:
- va009039
- Date:
- Wed Jun 06 11:47:06 2012 +0000
- Revision:
- 0:2b4ea8a138e5
- Child:
- 1:7a4f2c038803
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| va009039 | 0:2b4ea8a138e5 | 1 | #include "WebcamInput.h" |
| va009039 | 0:2b4ea8a138e5 | 2 | #include "WebcamHandler.h" |
| va009039 | 0:2b4ea8a138e5 | 3 | //#define __DEBUG |
| va009039 | 0:2b4ea8a138e5 | 4 | #include "mydbg.h" |
| va009039 | 0:2b4ea8a138e5 | 5 | |
| va009039 | 0:2b4ea8a138e5 | 6 | DigitalOut led1(LED1), led2(LED2), led3(LED3), led4(LED4); |
| va009039 | 0:2b4ea8a138e5 | 7 | |
| va009039 | 0:2b4ea8a138e5 | 8 | |
| va009039 | 0:2b4ea8a138e5 | 9 | WebcamInput::WebcamInput(int cam) |
| va009039 | 0:2b4ea8a138e5 | 10 | :m_seq(0),m_cam(cam) |
| va009039 | 0:2b4ea8a138e5 | 11 | { |
| va009039 | 0:2b4ea8a138e5 | 12 | DBG("%p cam=%d\n", this, cam); |
| va009039 | 0:2b4ea8a138e5 | 13 | m_t.reset(); |
| va009039 | 0:2b4ea8a138e5 | 14 | m_t.start(); |
| va009039 | 0:2b4ea8a138e5 | 15 | m_image_buf = new char[IMAGE_SIZE]; |
| va009039 | 0:2b4ea8a138e5 | 16 | DBG_ASSERT(m_image_buf); |
| va009039 | 0:2b4ea8a138e5 | 17 | } |
| va009039 | 0:2b4ea8a138e5 | 18 | |
| va009039 | 0:2b4ea8a138e5 | 19 | void WebcamInput::input(uint16_t frame, uint8_t* buf, int len) |
| va009039 | 0:2b4ea8a138e5 | 20 | { |
| va009039 | 0:2b4ea8a138e5 | 21 | if (len <= 12) { |
| va009039 | 0:2b4ea8a138e5 | 22 | return; |
| va009039 | 0:2b4ea8a138e5 | 23 | } |
| va009039 | 0:2b4ea8a138e5 | 24 | uint8_t* data = buf+12; |
| va009039 | 0:2b4ea8a138e5 | 25 | int data_len = len - 12; |
| va009039 | 0:2b4ea8a138e5 | 26 | |
| va009039 | 0:2b4ea8a138e5 | 27 | switch(m_seq) { |
| va009039 | 0:2b4ea8a138e5 | 28 | case 0: |
| va009039 | 0:2b4ea8a138e5 | 29 | if (m_t.read_ms() > INTERVAL_MS) { |
| va009039 | 0:2b4ea8a138e5 | 30 | m_seq++; |
| va009039 | 0:2b4ea8a138e5 | 31 | } |
| va009039 | 0:2b4ea8a138e5 | 32 | break; |
| va009039 | 0:2b4ea8a138e5 | 33 | case 1: |
| va009039 | 0:2b4ea8a138e5 | 34 | if (!WebcamHandler::busy()) { |
| va009039 | 0:2b4ea8a138e5 | 35 | m_seq++; |
| va009039 | 0:2b4ea8a138e5 | 36 | } |
| va009039 | 0:2b4ea8a138e5 | 37 | break; |
| va009039 | 0:2b4ea8a138e5 | 38 | case 2: |
| va009039 | 0:2b4ea8a138e5 | 39 | if ((buf[1]^m_bfh)&0x01) { // FID change |
| va009039 | 0:2b4ea8a138e5 | 40 | m_pos = 0; |
| va009039 | 0:2b4ea8a138e5 | 41 | if (m_cam == 0) { |
| va009039 | 0:2b4ea8a138e5 | 42 | led3 = 1; |
| va009039 | 0:2b4ea8a138e5 | 43 | } else { |
| va009039 | 0:2b4ea8a138e5 | 44 | led4 = 1; |
| va009039 | 0:2b4ea8a138e5 | 45 | } |
| va009039 | 0:2b4ea8a138e5 | 46 | m_seq++; |
| va009039 | 0:2b4ea8a138e5 | 47 | } else { |
| va009039 | 0:2b4ea8a138e5 | 48 | break; |
| va009039 | 0:2b4ea8a138e5 | 49 | } |
| va009039 | 0:2b4ea8a138e5 | 50 | case 3: |
| va009039 | 0:2b4ea8a138e5 | 51 | for(int i = 0; m_pos < IMAGE_SIZE && i < data_len; i++) { |
| va009039 | 0:2b4ea8a138e5 | 52 | m_image_buf[m_pos++] = data[i]; |
| va009039 | 0:2b4ea8a138e5 | 53 | } |
| va009039 | 0:2b4ea8a138e5 | 54 | if (buf[1]&0x02) { // EOF |
| va009039 | 0:2b4ea8a138e5 | 55 | WebcamHandler::setImage(m_image_buf, m_pos, m_cam); |
| va009039 | 0:2b4ea8a138e5 | 56 | m_t.reset(); |
| va009039 | 0:2b4ea8a138e5 | 57 | m_seq = 0; |
| va009039 | 0:2b4ea8a138e5 | 58 | if (m_cam == 0) { |
| va009039 | 0:2b4ea8a138e5 | 59 | led3 = 0; |
| va009039 | 0:2b4ea8a138e5 | 60 | } else { |
| va009039 | 0:2b4ea8a138e5 | 61 | led4 = 0; |
| va009039 | 0:2b4ea8a138e5 | 62 | } |
| va009039 | 0:2b4ea8a138e5 | 63 | } |
| va009039 | 0:2b4ea8a138e5 | 64 | break; |
| va009039 | 0:2b4ea8a138e5 | 65 | } |
| va009039 | 0:2b4ea8a138e5 | 66 | m_bfh = buf[1]; |
| va009039 | 0:2b4ea8a138e5 | 67 | if (m_cam == 0) { |
| va009039 | 0:2b4ea8a138e5 | 68 | led1 = buf[1]&1; // FID |
| va009039 | 0:2b4ea8a138e5 | 69 | } else { |
| va009039 | 0:2b4ea8a138e5 | 70 | led2 = buf[1]&1; // FID |
| va009039 | 0:2b4ea8a138e5 | 71 | } |
| va009039 | 0:2b4ea8a138e5 | 72 | //led4 = WebcamHandler::busy(); |
| va009039 | 0:2b4ea8a138e5 | 73 | } |