Sundance SMT319 - Manual (Page 35)

Version 1.0.7 Page 35 of 45 SMT319 User Manual
Software
Introduction
SMT319 is comes with a software package, providing a basic example (loopback.c)
decoding a PAL, B, D, G, H, I input video stream and displaying it to a screen. This
example doesn’t claim to be real time.
This example makes use of 3 libraries:
• VidEnc.lib: provides functions to set-up video encoder chip.
• VidDec.lib: provides functions to set-up video decoder chip.
• SndGrInt.lib: Sundance Graphical Interface. Provides basic functions to
acquire and display images. This library makes use of 3L real time operating
system, Diamond.
Functions description
Sundance Graphical Interface
InitLib
Initialises the SndGrInt library. Applications must call this function before using any
other feature of he library.
Prototype
int InitLibrary(int bufsize)
Parameters
Count: number of frames to store
Bufsize: size of a frame
Return value
This function returns OK if successful or MEMNOTALLOC if memory for
buffers could not been allocated.
CloseLib
Close SndGrInt library. Free SndGrInt memory.
Prototype
void CloseLib(void)
Acquire
This function acquires the video stream connected to video input component.
Prototype
void Acquire(void*)