FFmpeg
Macros | Functions
pvq.c File Reference
#include <float.h>
#include "config_components.h"
#include "libavutil/mem.h"
#include "mathops.h"
#include "tab.h"
#include "pvq.h"

Go to the source code of this file.

Macros

#define ROUND_MUL16(a, b)   ((MUL16(a, b) + 16384) >> 15)
 
#define CELT_PVQ_U(n, k)   (ff_celt_pvq_u_row[FFMIN(n, k)][FFMAX(n, k)])
 
#define CELT_PVQ_V(n, k)   (CELT_PVQ_U(n, k) + CELT_PVQ_U(n, (k) + 1))
 

Functions

static int16_t celt_cos (int16_t x)
 
static int celt_log2tan (int isin, int icos)
 
static int celt_bits2pulses (const uint8_t *cache, int bits)
 
static int celt_pulses2bits (const uint8_t *cache, int pulses)
 
static void celt_normalize_residual (const int *restrict iy, float *restrict X, int N, float g)
 
static void celt_exp_rotation_impl (float *X, uint32_t len, uint32_t stride, float c, float s)
 
static void celt_exp_rotation (float *X, uint32_t len, uint32_t stride, uint32_t K, enum CeltSpread spread, const int encode)
 
static uint32_t celt_extract_collapse_mask (const int *iy, uint32_t N, uint32_t B)
 
static void celt_stereo_merge (float *X, float *Y, float mid, int N)
 
static void celt_interleave_hadamard (float *tmp, float *X, int N0, int stride, int hadamard)
 
static void celt_deinterleave_hadamard (float *tmp, float *X, int N0, int stride, int hadamard)
 
static void celt_haar1 (float *X, int N0, int stride)
 
static int celt_compute_qn (int N, int b, int offset, int pulse_cap, int stereo)
 
static uint32_t celt_icwrsi (uint32_t N, uint32_t K, const int *y)
 
static uint64_t celt_cwrsi (uint32_t N, uint32_t K, uint32_t i, int *y)
 
static void celt_encode_pulses (OpusRangeCoder *rc, int *y, uint32_t N, uint32_t K)
 
static float celt_decode_pulses (OpusRangeCoder *rc, int *y, uint32_t N, uint32_t K)
 
static uint32_t celt_alg_quant (OpusRangeCoder *rc, float *X, uint32_t N, uint32_t K, enum CeltSpread spread, uint32_t blocks, float gain, CeltPVQ *pvq)
 
static uint32_t celt_alg_unquant (OpusRangeCoder *rc, float *X, uint32_t N, uint32_t K, enum CeltSpread spread, uint32_t blocks, float gain, CeltPVQ *pvq)
 Decode pulse vector and combine the result with the pitch vector to produce the final normalised signal in the current band. More...
 
static int celt_calc_theta (const float *X, const float *Y, int coupling, int N)
 
static void celt_stereo_is_decouple (float *X, float *Y, float e_l, float e_r, int N)
 
static void celt_stereo_ms_decouple (float *X, float *Y, int N)
 
static av_always_inline uint32_t quant_band_template (CeltPVQ *pvq, CeltFrame *f, OpusRangeCoder *rc, const int band, float *X, float *Y, int N, int b, uint32_t blocks, float *lowband, int duration, float *lowband_out, int level, float gain, float *lowband_scratch, int fill, int quant)
 
static QUANT_FN (pvq_decode_band)
 
static QUANT_FN (pvq_encode_band)
 
int av_cold ff_celt_pvq_init (CeltPVQ **pvq, int encode)
 
void av_cold ff_celt_pvq_uninit (CeltPVQ **pvq)
 

Macro Definition Documentation

◆ ROUND_MUL16

#define ROUND_MUL16 (   a,
  b 
)    ((MUL16(a, b) + 16384) >> 15)

Definition at line 35 of file pvq.c.

◆ CELT_PVQ_U

#define CELT_PVQ_U (   n,
  k 
)    (ff_celt_pvq_u_row[FFMIN(n, k)][FFMAX(n, k)])

Definition at line 37 of file pvq.c.

◆ CELT_PVQ_V

#define CELT_PVQ_V (   n,
  k 
)    (CELT_PVQ_U(n, k) + CELT_PVQ_U(n, (k) + 1))

Definition at line 38 of file pvq.c.

Function Documentation

◆ celt_cos()

static int16_t celt_cos ( int16_t  x)
inlinestatic

Definition at line 40 of file pvq.c.

Referenced by quant_band_template().

◆ celt_log2tan()

static int celt_log2tan ( int  isin,
int  icos 
)
inlinestatic

Definition at line 47 of file pvq.c.

Referenced by quant_band_template().

◆ celt_bits2pulses()

static int celt_bits2pulses ( const uint8_t *  cache,
int  bits 
)
inlinestatic

Definition at line 59 of file pvq.c.

Referenced by quant_band_template().

◆ celt_pulses2bits()

static int celt_pulses2bits ( const uint8_t *  cache,
int  pulses 
)
inlinestatic

Definition at line 78 of file pvq.c.

Referenced by quant_band_template().

◆ celt_normalize_residual()

static void celt_normalize_residual ( const int *restrict  iy,
float *restrict  X,
int  N,
float  g 
)
inlinestatic

Definition at line 84 of file pvq.c.

Referenced by celt_alg_quant(), and celt_alg_unquant().

◆ celt_exp_rotation_impl()

static void celt_exp_rotation_impl ( float *  X,
uint32_t  len,
uint32_t  stride,
float  c,
float  s 
)
static

Definition at line 92 of file pvq.c.

Referenced by celt_exp_rotation().

◆ celt_exp_rotation()

static void celt_exp_rotation ( float *  X,
uint32_t  len,
uint32_t  stride,
uint32_t  K,
enum CeltSpread  spread,
const int  encode 
)
inlinestatic

Definition at line 115 of file pvq.c.

Referenced by celt_alg_quant(), and celt_alg_unquant().

◆ celt_extract_collapse_mask()

static uint32_t celt_extract_collapse_mask ( const int *  iy,
uint32_t  N,
uint32_t  B 
)
inlinestatic

Definition at line 155 of file pvq.c.

Referenced by celt_alg_quant(), and celt_alg_unquant().

◆ celt_stereo_merge()

static void celt_stereo_merge ( float *  X,
float *  Y,
float  mid,
int  N 
)
inlinestatic

Definition at line 169 of file pvq.c.

Referenced by quant_band_template().

◆ celt_interleave_hadamard()

static void celt_interleave_hadamard ( float *  tmp,
float *  X,
int  N0,
int  stride,
int  hadamard 
)
static

Definition at line 207 of file pvq.c.

Referenced by quant_band_template().

◆ celt_deinterleave_hadamard()

static void celt_deinterleave_hadamard ( float *  tmp,
float *  X,
int  N0,
int  stride,
int  hadamard 
)
static

Definition at line 220 of file pvq.c.

Referenced by quant_band_template().

◆ celt_haar1()

static void celt_haar1 ( float *  X,
int  N0,
int  stride 
)
static

Definition at line 233 of file pvq.c.

Referenced by quant_band_template().

◆ celt_compute_qn()

static int celt_compute_qn ( int  N,
int  b,
int  offset,
int  pulse_cap,
int  stereo 
)
inlinestatic

Definition at line 247 of file pvq.c.

Referenced by quant_band_template().

◆ celt_icwrsi()

static uint32_t celt_icwrsi ( uint32_t  N,
uint32_t  K,
const int *  y 
)
inlinestatic

Definition at line 264 of file pvq.c.

Referenced by celt_encode_pulses().

◆ celt_cwrsi()

static uint64_t celt_cwrsi ( uint32_t  N,
uint32_t  K,
uint32_t  i,
int *  y 
)
inlinestatic

Definition at line 276 of file pvq.c.

Referenced by celt_decode_pulses().

◆ celt_encode_pulses()

static void celt_encode_pulses ( OpusRangeCoder *  rc,
int *  y,
uint32_t  N,
uint32_t  K 
)
inlinestatic

Definition at line 359 of file pvq.c.

Referenced by celt_alg_quant().

◆ celt_decode_pulses()

static float celt_decode_pulses ( OpusRangeCoder *  rc,
int *  y,
uint32_t  N,
uint32_t  K 
)
inlinestatic

Definition at line 364 of file pvq.c.

Referenced by celt_alg_unquant().

◆ celt_alg_quant()

static uint32_t celt_alg_quant ( OpusRangeCoder *  rc,
float *  X,
uint32_t  N,
uint32_t  K,
enum CeltSpread  spread,
uint32_t  blocks,
float  gain,
CeltPVQ *  pvq 
)
static

Definition at line 425 of file pvq.c.

Referenced by quant_band_template().

◆ celt_alg_unquant()

static uint32_t celt_alg_unquant ( OpusRangeCoder *  rc,
float *  X,
uint32_t  N,
uint32_t  K,
enum CeltSpread  spread,
uint32_t  blocks,
float  gain,
CeltPVQ *  pvq 
)
static

Decode pulse vector and combine the result with the pitch vector to produce the final normalised signal in the current band.

Definition at line 441 of file pvq.c.

Referenced by quant_band_template().

◆ celt_calc_theta()

static int celt_calc_theta ( const float *  X,
const float *  Y,
int  coupling,
int  N 
)
static

Definition at line 453 of file pvq.c.

Referenced by quant_band_template().

◆ celt_stereo_is_decouple()

static void celt_stereo_is_decouple ( float *  X,
float *  Y,
float  e_l,
float  e_r,
int  N 
)
static

Definition at line 471 of file pvq.c.

Referenced by quant_band_template().

◆ celt_stereo_ms_decouple()

static void celt_stereo_ms_decouple ( float *  X,
float *  Y,
int  N 
)
static

Definition at line 481 of file pvq.c.

Referenced by quant_band_template().

◆ quant_band_template()

static av_always_inline uint32_t quant_band_template ( CeltPVQ *  pvq,
CeltFrame *  f,
OpusRangeCoder *  rc,
const int  band,
float *  X,
float *  Y,
int  N,
int  b,
uint32_t  blocks,
float *  lowband,
int  duration,
float *  lowband_out,
int  level,
float  gain,
float *  lowband_scratch,
int  fill,
int  quant 
)
static

Definition at line 491 of file pvq.c.

Referenced by QUANT_FN().

◆ QUANT_FN() [1/2]

static QUANT_FN ( pvq_decode_band  )
static

Definition at line 887 of file pvq.c.

◆ QUANT_FN() [2/2]

static QUANT_FN ( pvq_encode_band  )
static

Definition at line 897 of file pvq.c.

◆ ff_celt_pvq_init()

int av_cold ff_celt_pvq_init ( CeltPVQ **  pvq,
int  encode 
)

Definition at line 907 of file pvq.c.

Referenced by ff_celt_init(), and opus_encode_init().

◆ ff_celt_pvq_uninit()

void av_cold ff_celt_pvq_uninit ( CeltPVQ **  pvq)

Definition at line 927 of file pvq.c.

Referenced by ff_celt_free(), and opus_encode_end().

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