--- /dev/null
+#ifndef DATA_H__
+#define DATA_H__
+
+#include <stdint.h>
+
+#define SAMPLE_BUFFER_SIZE 64
+
+extern uint8_t sample_buf[SAMPLE_BUFFER_SIZE];
+#define arraylen(x) (sizeof(x)/sizeof((x)[0]))
+
+void GetFromBigBuf(uint8_t *dest, int bytes);
+
+#endif