Linuxlib

API functions

unsigned int audiodac_callback(unsigned short left, unsigned short right);

this is callback, that freedo will call 44100 times a second to put next sample into DAC buffer. this should be blocking function -- it should wait if buffer is full. Returns 1 if everything went ok, returns 0 if there's no buffer or other problems.

unsigned int videobuf_callback(unsigned char * buf);

this is callback, that freedo will call every video frame update (60 times a second). the parameter is 640x480, 32 bit, little endian, ARGB frame.

API Structures

typedef struct{
   void * audiodac_callback;
   void * videobuf_callback;
   void * keypad_callback[5];
}freedo_struct;

where all are pointers to call back functions. see function API for details