sonic.c File Reference

Simple free lossless/lossy audio codec Based on Paul Francis Harrison's Bonk (http://www.logarithmic.net/pfh/bonk) Written and designed by Alex Beregszaszi. More...

#include "avcodec.h"
#include "get_bits.h"
#include "golomb.h"
#include "internal.h"
#include "rangecoder.h"

Classes
struct	SonicContext

Macros
#define	MAX_CHANNELS   2
#define	MID_SIDE   0
#define	LEFT_SIDE   1
#define	RIGHT_SIDE   2
#define	LATTICE_SHIFT   10
#define	SAMPLE_SHIFT   4
#define	LATTICE_FACTOR   (1 << LATTICE_SHIFT)
#define	SAMPLE_FACTOR   (1 << SAMPLE_SHIFT)
#define	BASE_QUANT   0.6
#define	RATE_VARIATION   3.0
#define	put_rac(C, S, B)

Typedefs
typedef struct SonicContext	SonicContext

Detailed Description

Simple free lossless/lossy audio codec Based on Paul Francis Harrison's Bonk (http://www.logarithmic.net/pfh/bonk) Written and designed by Alex Beregszaszi.

TODO:

• CABAC put/get_symbol
• independent quantizer for channels
• >2 channels support
• more decorrelation types
• more tap_quant tests
• selectable intlist writers/readers (bonk-style, golomb, cabac)

Macro Definition Documentation

put_rac

#define put_rac	(		C,
			S,
			B
	)

Value:

do{\
    if(rc_stat){\
        rc_stat[*(S)][B]++;\
        rc_stat2[(S)-state][B]++;\
    }\
    put_rac(C,S,B);\
}while(0)