Webcam Server.
Dependencies: uvchost FatFileSystem mbed HTTPServer NetServicesMin
WebcamInput.cpp@1:7a4f2c038803, 2012-08-14 (annotated)
- Committer:
- va009039
- Date:
- Tue Aug 14 03:42:12 2012 +0000
- Revision:
- 1:7a4f2c038803
- Parent:
- 0:2b4ea8a138e5
supported LogitechC270 and Safari
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
va009039 | 1:7a4f2c038803 | 1 | #include "WebcamServerConfig.h" |
va009039 | 0:2b4ea8a138e5 | 2 | #include "WebcamInput.h" |
va009039 | 0:2b4ea8a138e5 | 3 | #include "WebcamHandler.h" |
va009039 | 1:7a4f2c038803 | 4 | #include "myjpeg.h" |
va009039 | 0:2b4ea8a138e5 | 5 | //#define __DEBUG |
va009039 | 0:2b4ea8a138e5 | 6 | #include "mydbg.h" |
va009039 | 0:2b4ea8a138e5 | 7 | |
va009039 | 0:2b4ea8a138e5 | 8 | DigitalOut led1(LED1), led2(LED2), led3(LED3), led4(LED4); |
va009039 | 0:2b4ea8a138e5 | 9 | |
va009039 | 0:2b4ea8a138e5 | 10 | |
va009039 | 0:2b4ea8a138e5 | 11 | WebcamInput::WebcamInput(int cam) |
va009039 | 0:2b4ea8a138e5 | 12 | :m_seq(0),m_cam(cam) |
va009039 | 0:2b4ea8a138e5 | 13 | { |
va009039 | 0:2b4ea8a138e5 | 14 | DBG("%p cam=%d\n", this, cam); |
va009039 | 0:2b4ea8a138e5 | 15 | m_t.reset(); |
va009039 | 0:2b4ea8a138e5 | 16 | m_t.start(); |
va009039 | 1:7a4f2c038803 | 17 | m_size = IMAGE_SIZE; |
va009039 | 1:7a4f2c038803 | 18 | m_image_buf = new uint8_t[m_size]; |
va009039 | 0:2b4ea8a138e5 | 19 | DBG_ASSERT(m_image_buf); |
va009039 | 0:2b4ea8a138e5 | 20 | } |
va009039 | 0:2b4ea8a138e5 | 21 | |
va009039 | 0:2b4ea8a138e5 | 22 | void WebcamInput::input(uint16_t frame, uint8_t* buf, int len) |
va009039 | 0:2b4ea8a138e5 | 23 | { |
va009039 | 0:2b4ea8a138e5 | 24 | if (len <= 12) { |
va009039 | 0:2b4ea8a138e5 | 25 | return; |
va009039 | 0:2b4ea8a138e5 | 26 | } |
va009039 | 0:2b4ea8a138e5 | 27 | uint8_t* data = buf+12; |
va009039 | 0:2b4ea8a138e5 | 28 | int data_len = len - 12; |
va009039 | 0:2b4ea8a138e5 | 29 | |
va009039 | 0:2b4ea8a138e5 | 30 | switch(m_seq) { |
va009039 | 0:2b4ea8a138e5 | 31 | case 0: |
va009039 | 0:2b4ea8a138e5 | 32 | if (m_t.read_ms() > INTERVAL_MS) { |
va009039 | 0:2b4ea8a138e5 | 33 | m_seq++; |
va009039 | 0:2b4ea8a138e5 | 34 | } |
va009039 | 0:2b4ea8a138e5 | 35 | break; |
va009039 | 0:2b4ea8a138e5 | 36 | case 1: |
va009039 | 0:2b4ea8a138e5 | 37 | if (!WebcamHandler::busy()) { |
va009039 | 0:2b4ea8a138e5 | 38 | m_seq++; |
va009039 | 0:2b4ea8a138e5 | 39 | } |
va009039 | 0:2b4ea8a138e5 | 40 | break; |
va009039 | 0:2b4ea8a138e5 | 41 | case 2: |
va009039 | 0:2b4ea8a138e5 | 42 | if ((buf[1]^m_bfh)&0x01) { // FID change |
va009039 | 0:2b4ea8a138e5 | 43 | m_pos = 0; |
va009039 | 0:2b4ea8a138e5 | 44 | if (m_cam == 0) { |
va009039 | 0:2b4ea8a138e5 | 45 | led3 = 1; |
va009039 | 0:2b4ea8a138e5 | 46 | } else { |
va009039 | 0:2b4ea8a138e5 | 47 | led4 = 1; |
va009039 | 0:2b4ea8a138e5 | 48 | } |
va009039 | 0:2b4ea8a138e5 | 49 | m_seq++; |
va009039 | 0:2b4ea8a138e5 | 50 | } else { |
va009039 | 0:2b4ea8a138e5 | 51 | break; |
va009039 | 0:2b4ea8a138e5 | 52 | } |
va009039 | 0:2b4ea8a138e5 | 53 | case 3: |
va009039 | 0:2b4ea8a138e5 | 54 | for(int i = 0; m_pos < IMAGE_SIZE && i < data_len; i++) { |
va009039 | 0:2b4ea8a138e5 | 55 | m_image_buf[m_pos++] = data[i]; |
va009039 | 0:2b4ea8a138e5 | 56 | } |
va009039 | 0:2b4ea8a138e5 | 57 | if (buf[1]&0x02) { // EOF |
va009039 | 1:7a4f2c038803 | 58 | #ifdef UVC_INSERT_DHT |
va009039 | 1:7a4f2c038803 | 59 | myjpeg JPEG(m_image_buf, m_pos, m_size); |
va009039 | 1:7a4f2c038803 | 60 | JPEG.analytics(); |
va009039 | 1:7a4f2c038803 | 61 | if (JPEG.DHT_pos == 0) { |
va009039 | 1:7a4f2c038803 | 62 | m_pos = JPEG.insertDHT(); |
va009039 | 1:7a4f2c038803 | 63 | } |
va009039 | 1:7a4f2c038803 | 64 | #endif // UVC_INSERT_DHT |
va009039 | 0:2b4ea8a138e5 | 65 | WebcamHandler::setImage(m_image_buf, m_pos, m_cam); |
va009039 | 0:2b4ea8a138e5 | 66 | m_t.reset(); |
va009039 | 0:2b4ea8a138e5 | 67 | m_seq = 0; |
va009039 | 0:2b4ea8a138e5 | 68 | if (m_cam == 0) { |
va009039 | 0:2b4ea8a138e5 | 69 | led3 = 0; |
va009039 | 0:2b4ea8a138e5 | 70 | } else { |
va009039 | 0:2b4ea8a138e5 | 71 | led4 = 0; |
va009039 | 0:2b4ea8a138e5 | 72 | } |
va009039 | 0:2b4ea8a138e5 | 73 | } |
va009039 | 0:2b4ea8a138e5 | 74 | break; |
va009039 | 0:2b4ea8a138e5 | 75 | } |
va009039 | 0:2b4ea8a138e5 | 76 | m_bfh = buf[1]; |
va009039 | 0:2b4ea8a138e5 | 77 | if (m_cam == 0) { |
va009039 | 0:2b4ea8a138e5 | 78 | led1 = buf[1]&1; // FID |
va009039 | 0:2b4ea8a138e5 | 79 | } else { |
va009039 | 0:2b4ea8a138e5 | 80 | led2 = buf[1]&1; // FID |
va009039 | 0:2b4ea8a138e5 | 81 | } |
va009039 | 0:2b4ea8a138e5 | 82 | //led4 = WebcamHandler::busy(); |
va009039 | 0:2b4ea8a138e5 | 83 | } |