Norimasa Okamoto
Simple USBHost WebCam test program
Dependencies: F401RE-USBHost mbed
Fork of
KL46Z-USBHostC270_example
by 
Norimasa Okamoto
WebカメラからJPEG画像を読み取るテストプログラムです。
使い方はKL46Z-USBHostC270_exampleと同じです。
動作確認カメラ： Logitech C270, Logitech C210, Logitech Q200R(Qcam Orbit AF), LifeCam VX-500
Diff: KL46Z-USBHostC270/USBHostC270.h
- Revision:
- 0:a72d9b047d8d
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/KL46Z-USBHostC270/USBHostC270.h Mon Jan 27 11:07:34 2014 +0000
@@ -0,0 +1,57 @@
+// Simple USBHost Logtigech C270 for FRDM-KL46Z
+#include "USBHost.h"
+#include "BaseUvc.h"
+#include "decodeMJPEG.h"
+
+// Logitech C270
+#define C270_VID 0x046d
+#define C270_PID 0x0825
+#define C270_160x120 2
+#define C270_176x144 3
+#define C270_320x176 4
+#define C270_320x240 5
+#define C270_352x288 6
+#define C270_432x240 7
+#define C270_640x480 1
+#define C270_544x288 8
+#define C270_640x360 9
+#define C270_752x416 10
+#define C270_800x448 11
+#define C270_800x600 12
+
+#define C270_MJPEG 2
+#define C270_YUV2 1
+
+#define C270_EN 0x81
+#define C270_MPS 192
+#define C270_IF_ALT 1
+
+class USBHostC270 : public BaseUvc, public decodeMJPEG {
+public:
+ USBHostC270(int formatIndex = C270_MJPEG, int frameIndex = C270_160x120, uint32_t interval = _5FPS);
+ /**
+ * read jpeg image
+ *
+ * @param buf read buffer
+ * @param size buffer size
+ * @param timeout_ms timeout default 15sec
+ * @return jpeg size if read success else -1
+ */
+ int readJPEG(uint8_t* buf, int size, int timeout_ms = 15*1000);
+
+ Report* report;
+
+private:
+ int _formatIndex;
+ int _frameIndex;
+ uint32_t _interval;
+ uint8_t _seq;
+ uint8_t* _buf;
+ int _pos;
+ int _size;
+
+ void setup();
+ virtual void outputJPEG(uint8_t c, int status); // from decodeMJPEG
+ void callback_motion_jpeg(uint16_t frame, uint8_t* buf, int len);
+};
+