#include <limits.h>
#include <stdint.h>
#include "libavutil/attributes.h"
#include "libavutil/intmath.h"

Data Structures
struct	Decorr

struct	WvChannel

Macros
#define	MAX_TERMS 16

#define	MAX_TERM 8

#define	WV_HEADER_SIZE 32

#define	WV_MONO 0x00000004

#define	WV_JOINT_STEREO 0x00000010

#define	WV_CROSS_DECORR 0x00000020

#define	WV_FLOAT_DATA 0x00000080

#define	WV_INT32_DATA 0x00000100

#define	WV_FALSE_STEREO 0x40000000

#define	WV_DSD_DATA 0x80000000

#define	WV_HYBRID_MODE 0x00000008

#define	WV_HYBRID_SHAPE 0x00000008

#define	WV_HYBRID_BITRATE 0x00000200

#define	WV_HYBRID_BALANCE 0x00000400

#define	WV_INITIAL_BLOCK 0x00000800

#define	WV_FINAL_BLOCK 0x00001000

#define	WV_MONO_DATA (WV_MONO \| WV_FALSE_STEREO)

#define	WV_SINGLE_BLOCK (WV_INITIAL_BLOCK \| WV_FINAL_BLOCK)

#define	WV_FLT_SHIFT_ONES 0x01

#define	WV_FLT_SHIFT_SAME 0x02

#define	WV_FLT_SHIFT_SENT 0x04

#define	WV_FLT_ZERO_SENT 0x08

#define	WV_FLT_ZERO_SIGN 0x10

#define	WV_MAX_CHANNELS (1 << 12)

#define	WV_MAX_SAMPLES 150000

#define	GET_MED(n) ((c->median[n] >> 4) + 1)

#define	DEC_MED(n) c->median[n] -= ((int)(c->median[n] + (128U >> (n)) - 2) / (128 >> (n))) * 2U

#define	INC_MED(n) c->median[n] += ((int)(c->median[n] + (128U >> (n)) ) / (128 >> (n))) * 5U

#define	UPDATE_WEIGHT_CLIP(weight, delta, samples, in)

Enumerations
enum	WP_ID_Flags { WP_IDF_MASK = 0x3F, WP_IDF_IGNORE = 0x20, WP_IDF_ODD = 0x40, WP_IDF_LONG = 0x80 }

enum	WP_ID { WP_ID_DUMMY = 0, WP_ID_ENCINFO, WP_ID_DECTERMS, WP_ID_DECWEIGHTS, WP_ID_DECSAMPLES, WP_ID_ENTROPY, WP_ID_HYBRID, WP_ID_SHAPING, WP_ID_FLOATINFO, WP_ID_INT32INFO, WP_ID_DATA, WP_ID_CORR, WP_ID_EXTRABITS, WP_ID_CHANINFO, WP_ID_DSD_DATA, WP_ID_SAMPLE_RATE = 0x27 }

Functions
static av_always_inline int	wp_exp2 (int16_t val)

static av_always_inline int	wp_log2 (uint32_t val)

Variables
static const int	wv_rates [16]

const uint8_t	ff_wp_exp2_table [256]

const uint8_t	ff_wp_log2_table [256]

Macro Definition Documentation

◆ MAX_TERMS

#define MAX_TERMS 16

Definition at line 30 of file wavpack.h.

◆ MAX_TERM

#define MAX_TERM 8

Definition at line 31 of file wavpack.h.

◆ WV_HEADER_SIZE

#define WV_HEADER_SIZE 32

Definition at line 33 of file wavpack.h.

◆ WV_MONO

#define WV_MONO 0x00000004

Definition at line 35 of file wavpack.h.

◆ WV_JOINT_STEREO

#define WV_JOINT_STEREO 0x00000010

Definition at line 36 of file wavpack.h.

◆ WV_CROSS_DECORR

#define WV_CROSS_DECORR 0x00000020

Definition at line 37 of file wavpack.h.

◆ WV_FLOAT_DATA

#define WV_FLOAT_DATA 0x00000080

Definition at line 38 of file wavpack.h.

◆ WV_INT32_DATA

#define WV_INT32_DATA 0x00000100

Definition at line 39 of file wavpack.h.

◆ WV_FALSE_STEREO

#define WV_FALSE_STEREO 0x40000000

Definition at line 40 of file wavpack.h.

◆ WV_DSD_DATA

#define WV_DSD_DATA 0x80000000

Definition at line 41 of file wavpack.h.

◆ WV_HYBRID_MODE

#define WV_HYBRID_MODE 0x00000008

Definition at line 43 of file wavpack.h.

◆ WV_HYBRID_SHAPE

#define WV_HYBRID_SHAPE 0x00000008

Definition at line 44 of file wavpack.h.

◆ WV_HYBRID_BITRATE

#define WV_HYBRID_BITRATE 0x00000200

Definition at line 45 of file wavpack.h.

◆ WV_HYBRID_BALANCE

#define WV_HYBRID_BALANCE 0x00000400

Definition at line 46 of file wavpack.h.

◆ WV_INITIAL_BLOCK

#define WV_INITIAL_BLOCK 0x00000800

Definition at line 47 of file wavpack.h.

◆ WV_FINAL_BLOCK

#define WV_FINAL_BLOCK 0x00001000

Definition at line 48 of file wavpack.h.

◆ WV_MONO_DATA

#define WV_MONO_DATA (WV_MONO | WV_FALSE_STEREO)

Definition at line 50 of file wavpack.h.

◆ WV_SINGLE_BLOCK

#define WV_SINGLE_BLOCK (WV_INITIAL_BLOCK | WV_FINAL_BLOCK)

Definition at line 52 of file wavpack.h.

◆ WV_FLT_SHIFT_ONES

#define WV_FLT_SHIFT_ONES 0x01

Definition at line 54 of file wavpack.h.

◆ WV_FLT_SHIFT_SAME

#define WV_FLT_SHIFT_SAME 0x02

Definition at line 55 of file wavpack.h.

◆ WV_FLT_SHIFT_SENT

#define WV_FLT_SHIFT_SENT 0x04

Definition at line 56 of file wavpack.h.

◆ WV_FLT_ZERO_SENT

#define WV_FLT_ZERO_SENT 0x08

Definition at line 57 of file wavpack.h.

◆ WV_FLT_ZERO_SIGN

#define WV_FLT_ZERO_SIGN 0x10

Definition at line 58 of file wavpack.h.

◆ WV_MAX_CHANNELS

#define WV_MAX_CHANNELS (1 << 12)

Definition at line 60 of file wavpack.h.

◆ WV_MAX_SAMPLES

#define WV_MAX_SAMPLES 150000

Definition at line 61 of file wavpack.h.

◆ GET_MED

#define GET_MED ( n ) ((c->median[n] >> 4) + 1)

Definition at line 107 of file wavpack.h.

◆ DEC_MED

#define DEC_MED ( n ) c->median[n] -= ((int)(c->median[n] + (128U >> (n)) - 2) / (128 >> (n))) * 2U

Definition at line 108 of file wavpack.h.

◆ INC_MED

#define INC_MED ( n ) c->median[n] += ((int)(c->median[n] + (128U >> (n)) ) / (128 >> (n))) * 5U

Definition at line 109 of file wavpack.h.

◆ UPDATE_WEIGHT_CLIP

#define UPDATE_WEIGHT_CLIP	(	weight,
		delta,
		samples,
		in
	)

Value:

    if ((samples) && (in)) { \
        if (((samples) ^ (in)) < 0) { \
            (weight) -= (delta); \
            if ((weight) < -1024) \
                (weight) = -1024; \
        } else { \
            (weight) += (delta); \
            if ((weight) > 1024) \
                (weight) = 1024; \
        } \
    }

Definition at line 112 of file wavpack.h.

Enumeration Type Documentation

◆ WP_ID_Flags

enum WP_ID_Flags

Enumerator
WP_IDF_MASK
WP_IDF_IGNORE
WP_IDF_ODD
WP_IDF_LONG

Definition at line 63 of file wavpack.h.

◆ WP_ID

enum WP_ID

Enumerator
WP_ID_DUMMY
WP_ID_ENCINFO
WP_ID_DECTERMS
WP_ID_DECWEIGHTS
WP_ID_DECSAMPLES
WP_ID_ENTROPY
WP_ID_HYBRID
WP_ID_SHAPING
WP_ID_FLOATINFO
WP_ID_INT32INFO
WP_ID_DATA
WP_ID_CORR
WP_ID_EXTRABITS
WP_ID_CHANINFO
WP_ID_DSD_DATA
WP_ID_SAMPLE_RATE

Definition at line 70 of file wavpack.h.

Function Documentation

◆ wp_exp2()

static av_always_inline int wp_exp2 ( int16_t val )

static

Definition at line 134 of file wavpack.h.

Referenced by decorr_mono(), decorr_stereo(), decorr_stereo_quick(), update_error_limit(), and wavpack_decode_block().

◆ wp_log2()

static av_always_inline int wp_log2 ( uint32_t val )

static

Definition at line 151 of file wavpack.h.

Referenced by log2s(), and wv_get_value().

Variable Documentation

◆ wv_rates

const int wv_rates[16]

static

Initial value:

= {
     6000,  8000,  9600, 11025, 12000, 16000,  22050, 24000,
    32000, 44100, 48000, 64000, 88200, 96000, 192000,     0
}

Definition at line 125 of file wavpack.h.

Referenced by set_samplerate(), and wavpack_decode_block().

◆ ff_wp_exp2_table

const uint8_t ff_wp_exp2_table[256]

Definition at line 24 of file wavpackdata.c.

Referenced by wp_exp2().

◆ ff_wp_log2_table

const uint8_t ff_wp_log2_table[256]

Definition at line 43 of file wavpackdata.c.

Referenced by log2sample(), and wp_log2().

Data Structures

Macros

Enumerations

Functions

Variables

Macro Definition Documentation

◆ MAX_TERMS

◆ MAX_TERM

◆ WV_HEADER_SIZE

◆ WV_MONO

◆ WV_JOINT_STEREO

◆ WV_CROSS_DECORR

◆ WV_FLOAT_DATA

◆ WV_INT32_DATA

◆ WV_FALSE_STEREO

◆ WV_DSD_DATA

◆ WV_HYBRID_MODE

◆ WV_HYBRID_SHAPE

◆ WV_HYBRID_BITRATE

◆ WV_HYBRID_BALANCE

◆ WV_INITIAL_BLOCK

◆ WV_FINAL_BLOCK

◆ WV_MONO_DATA

◆ WV_SINGLE_BLOCK

◆ WV_FLT_SHIFT_ONES

◆ WV_FLT_SHIFT_SAME

◆ WV_FLT_SHIFT_SENT

◆ WV_FLT_ZERO_SENT

◆ WV_FLT_ZERO_SIGN

◆ WV_MAX_CHANNELS

◆ WV_MAX_SAMPLES

◆ GET_MED

◆ DEC_MED

◆ INC_MED

◆ UPDATE_WEIGHT_CLIP

Enumeration Type Documentation

◆ WP_ID_Flags

◆ WP_ID

Function Documentation

◆ wp_exp2()

◆ wp_log2()

Variable Documentation

◆ wv_rates

◆ ff_wp_exp2_table

◆ ff_wp_log2_table