wavpack.h File Reference

#include "libavutil/common.h"

Go to the source code of this file.

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_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_SAMPLES   131072
#define	GET_MED(n)   ((c->median[n] >> 4) + 1)
#define	DEC_MED(n)   c->median[n] -= ((c->median[n] + (128 >> n) - 2) / (128 >> n)) * 2
#define	INC_MED(n)   c->median[n] += ((c->median[n] + (128 >> n) ) / (128 >> n)) * 5
#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_SAMPLE_RATE = 0x27 }

Functions
static av_always_inline int	wp_exp2 (int16_t val)
static av_always_inline int	wp_log2 (int32_t val)

Variables
static const int	wv_rates [16]
static const uint8_t	wp_exp2_table [256]
static const uint8_t	wp_log2_table []

Macro Definition Documentation

#define MAX_TERMS   16

Definition at line 27 of file wavpack.h.

Referenced by wavpack_decode_block(), and wavpack_encode_close().

#define MAX_TERM   8

Definition at line 28 of file wavpack.h.

Referenced by decorr_mono(), decorr_stereo(), decorr_stereo_pass2(), decorr_stereo_pass_id2(), decorr_stereo_quick(), reverse_decorr(), reverse_mono_decorr(), and wavpack_encode_block().

#define WV_HEADER_SIZE   32

Definition at line 30 of file wavpack.h.

Referenced by mkv_strip_wavpack(), wavpack_decode_frame(), wv_read_block_header(), wv_read_packet(), and wv_write_packet().

#define WV_MONO   0x00000004

Definition at line 32 of file wavpack.h.

#define WV_JOINT_STEREO   0x00000010

Definition at line 33 of file wavpack.h.

Referenced by wavpack_decode_block(), wavpack_encode_block(), and wv_stereo().

#define WV_CROSS_DECORR   0x00000020

Definition at line 34 of file wavpack.h.

Referenced by recurse_stereo(), wavpack_encode_block(), wavpack_encode_frame(), and wv_stereo().

#define WV_FLOAT_DATA   0x00000080

Definition at line 35 of file wavpack.h.

Referenced by wavpack_encode_block(), and wavpack_encode_frame().

#define WV_INT32_DATA   0x00000100

Definition at line 36 of file wavpack.h.

Referenced by scan_int23(), scan_int32(), and wavpack_encode_block().

#define WV_FALSE_STEREO   0x40000000

Definition at line 37 of file wavpack.h.

Referenced by wavpack_decode_block(), and wavpack_encode_block().

#define WV_HYBRID_MODE   0x00000008

Definition at line 39 of file wavpack.h.

Referenced by wavpack_decode_block().

#define WV_HYBRID_SHAPE   0x00000008

Definition at line 40 of file wavpack.h.

#define WV_HYBRID_BITRATE   0x00000200

Definition at line 41 of file wavpack.h.

Referenced by wavpack_decode_block().

#define WV_HYBRID_BALANCE   0x00000400

Definition at line 42 of file wavpack.h.

#define WV_INITIAL_BLOCK   0x00000800

Definition at line 43 of file wavpack.h.

Referenced by wavpack_encode_block().

#define WV_FINAL_BLOCK   0x00001000

Definition at line 44 of file wavpack.h.

Referenced by wavpack_encode_block().

#define WV_MONO_DATA   (WV_MONO | WV_FALSE_STEREO)

Definition at line 46 of file wavpack.h.

Referenced by allocate_buffers(), allocate_buffers2(), pack_float(), pack_int32(), scan_float(), scan_int23(), scan_int32(), and wavpack_encode_block().

#define WV_SINGLE_BLOCK   (WV_INITIAL_BLOCK | WV_FINAL_BLOCK)

Definition at line 48 of file wavpack.h.

Referenced by wavpack_decode_block().

#define WV_FLT_SHIFT_ONES   0x01

Definition at line 50 of file wavpack.h.

Referenced by wv_get_value_float().

#define WV_FLT_SHIFT_SAME   0x02

Definition at line 51 of file wavpack.h.

Referenced by wv_get_value_float().

#define WV_FLT_SHIFT_SENT   0x04

Definition at line 52 of file wavpack.h.

Referenced by wv_get_value_float().

#define WV_FLT_ZERO_SENT   0x08

Definition at line 53 of file wavpack.h.

Referenced by wv_get_value_float().

#define WV_FLT_ZERO_SIGN   0x10

Definition at line 54 of file wavpack.h.

Referenced by wv_get_value_float().

#define WV_MAX_SAMPLES   131072

Definition at line 56 of file wavpack.h.

Referenced by wavpack_decode_frame(), and wavpack_encode_init().

#define GET_MED

(

n

)

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

Definition at line 101 of file wavpack.h.

Referenced by scan_word(), wavpack_encode_sample(), and wv_get_value().

#define DEC_MED

(

n

)

c->median[n] -= ((c->median[n] + (128 >> n) - 2) / (128 >> n)) * 2

Definition at line 102 of file wavpack.h.

Referenced by scan_word(), wavpack_encode_sample(), and wv_get_value().

#define INC_MED

(

n

)

c->median[n] += ((c->median[n] + (128 >> n) ) / (128 >> n)) * 5

Definition at line 103 of file wavpack.h.

Referenced by scan_word(), wavpack_encode_sample(), and wv_get_value().

#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 106 of file wavpack.h.

Referenced by decorr_stereo(), decorr_stereo_pass2(), decorr_stereo_quick(), and wv_unpack_stereo().

Enumeration Type Documentation

enum WP_ID_Flags

Enumerator:

WP_IDF_MASK
WP_IDF_IGNORE
WP_IDF_ODD
WP_IDF_LONG

Definition at line 58 of file wavpack.h.

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_SAMPLE_RATE

Definition at line 65 of file wavpack.h.

Function Documentation

static av_always_inline int wp_exp2 ( int16_t  val )

static

Definition at line 163 of file wavpack.h.

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

static av_always_inline int wp_log2 ( int32_t  val )

static

Definition at line 178 of file wavpack.h.

Referenced by log2s(), and wv_get_value().

Variable Documentation

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 119 of file wavpack.h.

Referenced by set_samplerate(), and wavpack_decode_block().

const uint8_t wp_exp2_table[256]

static

Initial value:

= {
    0x00, 0x01, 0x01, 0x02, 0x03, 0x03, 0x04, 0x05, 0x06, 0x06, 0x07, 0x08, 0x08, 0x09, 0x0a, 0x0b,
    0x0b, 0x0c, 0x0d, 0x0e, 0x0e, 0x0f, 0x10, 0x10, 0x11, 0x12, 0x13, 0x13, 0x14, 0x15, 0x16, 0x16,
    0x17, 0x18, 0x19, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1d, 0x1e, 0x1f, 0x20, 0x20, 0x21, 0x22, 0x23,
    0x24, 0x24, 0x25, 0x26, 0x27, 0x28, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2c, 0x2d, 0x2e, 0x2f, 0x30,
    0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3a, 0x3b, 0x3c, 0x3d,
    0x3e, 0x3f, 0x40, 0x41, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x48, 0x49, 0x4a, 0x4b,
    0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a,
    0x5b, 0x5c, 0x5d, 0x5e, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69,
    0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79,
    0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x87, 0x88, 0x89, 0x8a,
    0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b,
    0x9c, 0x9d, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad,
    0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0,
    0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc8, 0xc9, 0xca, 0xcb, 0xcd, 0xce, 0xcf, 0xd0, 0xd2, 0xd3, 0xd4,
    0xd6, 0xd7, 0xd8, 0xd9, 0xdb, 0xdc, 0xdd, 0xde, 0xe0, 0xe1, 0xe2, 0xe4, 0xe5, 0xe6, 0xe8, 0xe9,
    0xea, 0xec, 0xed, 0xee, 0xf0, 0xf1, 0xf2, 0xf4, 0xf5, 0xf6, 0xf8, 0xf9, 0xfa, 0xfc, 0xfd, 0xff
}

Definition at line 125 of file wavpack.h.

Referenced by wp_exp2().

const uint8_t wp_log2_table[]

static

Initial value:

= {
    0x00, 0x01, 0x03, 0x04, 0x06, 0x07, 0x09, 0x0a, 0x0b, 0x0d, 0x0e, 0x10, 0x11, 0x12, 0x14, 0x15,
    0x16, 0x18, 0x19, 0x1a, 0x1c, 0x1d, 0x1e, 0x20, 0x21, 0x22, 0x24, 0x25, 0x26, 0x28, 0x29, 0x2a,
    0x2c, 0x2d, 0x2e, 0x2f, 0x31, 0x32, 0x33, 0x34, 0x36, 0x37, 0x38, 0x39, 0x3b, 0x3c, 0x3d, 0x3e,
    0x3f, 0x41, 0x42, 0x43, 0x44, 0x45, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4d, 0x4e, 0x4f, 0x50, 0x51,
    0x52, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5c, 0x5d, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63,
    0x64, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x74, 0x75,
    0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85,
    0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95,
    0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4,
    0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb2,
    0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc0,
    0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcb, 0xcc, 0xcd, 0xce,
    0xcf, 0xd0, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd8, 0xd9, 0xda, 0xdb,
    0xdc, 0xdc, 0xdd, 0xde, 0xdf, 0xe0, 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe4, 0xe5, 0xe6, 0xe7, 0xe7,
    0xe8, 0xe9, 0xea, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xee, 0xef, 0xf0, 0xf1, 0xf1, 0xf2, 0xf3, 0xf4,
    0xf4, 0xf5, 0xf6, 0xf7, 0xf7, 0xf8, 0xf9, 0xf9, 0xfa, 0xfb, 0xfc, 0xfc, 0xfd, 0xfe, 0xff, 0xff
}

Definition at line 144 of file wavpack.h.

Referenced by log2sample(), and wp_log2().