wpcendec.comp.dwpt.2d.lib

su 的源代码库

WPCENDEC -  Wavelet Packet Coding, Encoding and Decoding routines

wpcEncoder - wavelet packet encoder
wpcDencoder - wavelet packet encoder

Function Prototypes:
int wpcEncoder(float **block, float error, void *inconf, void *outbuff, 
	void *interblock);
int wpcDecoder(float **block, void *inconf, void *outbuff,
	void *interblock);

wpcEncoder:
Input:
block		array[][] of data
error		relative RMS error tolerable
inconf		configuration information

Output:
outbuff		buffer holding the encoded stream 
interblock	reserved for interblock communication 

Return:		# of bytes after encoding

wpcDecoder:
Input:
inconf		configuration information
interblock	reserved for inter block communication

Output:
block		array[][] of data
outbuff		buffer holding the decoded stream 

Return:		consistancy flag, 1 if wpcCompressed, 0 otherwise

Author:		Tong Chen, 07/28/94