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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   150000
 
#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   150000

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; \
} \
}
if
if()
Definition: avfilter.c:975
delta
float delta
Definition: vorbis_enc_data.h:457
in
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
Definition: audio_convert.c:194
weight
static int weight(int i, int blen, int offset)
Definition: diracdec.c:1298

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().

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