diff options
Diffstat (limited to 'includes/yazedc.h')
| -rw-r--r-- | includes/yazedc.h | 85 |
1 files changed, 25 insertions, 60 deletions
diff --git a/includes/yazedc.h b/includes/yazedc.h index b990d3e..298c0eb 100644 --- a/includes/yazedc.h +++ b/includes/yazedc.h @@ -22,6 +22,8 @@ #ifndef __YAZEDC_H__ +#include "Exceptions.h" + #define RS_L12_BITS 8 /* audio sector definitions for CIRC */ @@ -32,17 +34,6 @@ #define L1_Q 4 #define L1_P 4 -/* audio sector Cross Interleaved Reed-Solomon Code (CIRC) encoder (layer 1) */ -/* adds P- and Q- parity information to audio (f2) frames. Also - optionally handles the various delays and permutations. The output with all - stages enabled can be fed into the Eight-Fourteen-Modulator. - On input: 2352 bytes of audio data is given. - On output: 3136 bytes of CIRC enriched audio data are returned. - */ -int do_encode_L1(unsigned char in[L1_RAW*FRAMES_PER_SECTOR], - unsigned char out[(L1_RAW+L1_Q+L1_P)*FRAMES_PER_SECTOR], - int delay1, int delay2, int delay3, int scramble); - /* data sector definitions for RSPC */ /* user data bytes per frame */ #define L2_RAW (1024*2) @@ -57,14 +48,25 @@ int do_encode_L1(unsigned char in[L1_RAW*FRAMES_PER_SECTOR], #define MODE_2_FORM_1 3 #define MODE_2_FORM_2 4 -#ifdef __cplusplus -extern "C" { -#endif +/* r-w sub channel definitions */ +#define RS_SUB_RW_BITS 6 + +#define PACKETS_PER_SUBCHANNELFRAME 4 +#define LSUB_RAW 18 +#define LSUB_QRAW 2 +/* 6 bit */ +#define LSUB_Q 2 +#define LSUB_P 4 + +class yazedc : public Base { + + public: + yazedc(); /* set one of the MODE_* constants for subsequent data sector formatting */ -int set_sector_type(int st); + int set_sector_type(int st); /* get the current sector type setting for data sector formatting */ -int get_sector_type(void); + int get_sector_type(void); /* data sector layer 2 Reed-Solomon Product Code encoder */ /* encode the given data portion depending on sector type (see @@ -88,55 +90,18 @@ int get_sector_type(void); in the inout array. Sync-, header- and edc- fields will be added. */ -int do_encode_L2(unsigned char *inout, int sectortype, unsigned address); -int decode_L2_Q(unsigned char inout[4 + L2_RAW + 12 + L2_Q]); -int decode_L2_P(unsigned char inout[4 + L2_RAW + 12 + L2_Q + L2_P]); -unsigned long int build_edc(unsigned char inout[], int from, int upto); + int do_encode_L2(unsigned char *inout, int sectortype, unsigned address); /* generates f2 frames from otherwise fully formatted sectors (generated by do_encode_L2()). */ -int scramble_L2(unsigned char *inout); + int scramble_L2(unsigned char *inout); -#ifdef __cplusplus -} -#endif - -/* r-w sub channel definitions */ -#define RS_SUB_RW_BITS 6 + unsigned char minute, second, frame; -#define PACKETS_PER_SUBCHANNELFRAME 4 -#define LSUB_RAW 18 -#define LSUB_QRAW 2 -/* 6 bit */ -#define LSUB_Q 2 -#define LSUB_P 4 - -#ifdef __cplusplus -extern "C" { -#endif - -/* R-W subchannel encoder */ -/* On input: 72 bytes packed user data, four frames with each 18 bytes. - On output: per frame: 2 bytes user data, 2 bytes Q parity, - 16 bytes user data, 4 bytes P parity. - Options: - delay1: use low level delay line - scramble: perform low level permutations - */ -int do_encode_sub(unsigned char in[LSUB_RAW*PACKETS_PER_SUBCHANNELFRAME], - unsigned char out[(LSUB_RAW+LSUB_Q+LSUB_P)*PACKETS_PER_SUBCHANNELFRAME], - int delay1, int scramble); -int do_decode_sub(unsigned char in[(LSUB_RAW+LSUB_Q+LSUB_P)*PACKETS_PER_SUBCHANNELFRAME], - unsigned char out[LSUB_RAW*PACKETS_PER_SUBCHANNELFRAME], - int delay1, int scramble); - -int decode_LSUB_Q(unsigned char inout[LSUB_QRAW + LSUB_Q]); -int decode_LSUB_P(unsigned char inout[LSUB_RAW + LSUB_Q + LSUB_P]); - -#ifdef __cplusplus -} -#endif + private: + int sectortype; + int build_address(unsigned char inout[], int sectortype, unsigned address); -extern unsigned char minute, second, frame; +}; #endif |