00001
00004 #if !defined(ALAW_H__)
00005 #define ALAW_H__
00006
00007
00011 class Alaw
00012 {
00013 public:
00014 static void conv_u8bit_alaw(unsigned char *src_ptr, unsigned char *dst_ptr, size_t size);
00015 static void conv_s8bit_alaw(unsigned char *src_ptr, unsigned char *dst_ptr, size_t size);
00016 static void conv_s16bit_alaw(unsigned short *src_ptr, unsigned char *dst_ptr, size_t size);
00017 static void conv_u16bit_alaw(unsigned short *src_ptr, unsigned char *dst_ptr, size_t size);
00018 private:
00019 static inline unsigned char linear2alaw(int pcm_val);
00020 static inline int search(int val, const short *table, int size);
00021 };
00022
00023 #endif // ALAW_H__
00024
00025
