FFmpeg: libavcodec/opus_pvq.c File Reference

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opus_pvq.c File Reference

#include <float.h>
#include "config_components.h"
#include "mathops.h"
#include "opustab.h"
#include "opus_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 *av_restrict iy, float *av_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,

) ((MUL16(a, b) + 16384) >> 15)

Definition at line 34 of file opus_pvq.c.

◆ CELT_PVQ_U

#define CELT_PVQ_U ( n,

) (ff_celt_pvq_u_row[FFMIN(n, k)][FFMAX(n, k)])

Definition at line 36 of file opus_pvq.c.

◆ CELT_PVQ_V

#define CELT_PVQ_V ( n,

) (CELT_PVQ_U(n, k) + CELT_PVQ_U(n, (k) + 1))

Definition at line 37 of file opus_pvq.c.

Function Documentation

◆ celt_cos()

static int16_t celt_cos ( int16_t x )

inlinestatic

Definition at line 39 of file opus_pvq.c.

Referenced by quant_band_template().

◆ celt_log2tan()

static int celt_log2tan ( int isin,

int icos

)

inlinestatic

Definition at line 46 of file opus_pvq.c.

Referenced by quant_band_template().

◆ celt_bits2pulses()

static int celt_bits2pulses ( const uint8_t * cache,

int bits

)

inlinestatic

Definition at line 58 of file opus_pvq.c.

Referenced by quant_band_template().

◆ celt_pulses2bits()

static int celt_pulses2bits ( const uint8_t * cache,

int pulses

)

inlinestatic

Definition at line 77 of file opus_pvq.c.

Referenced by quant_band_template().

◆ celt_normalize_residual()

static void celt_normalize_residual ( const int *av_restrict iy,

float *av_restrict X,

int N,

float g

)

inlinestatic

Definition at line 83 of file opus_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 91 of file opus_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 114 of file opus_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 154 of file opus_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 168 of file opus_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 206 of file opus_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 219 of file opus_pvq.c.

Referenced by quant_band_template().

◆ celt_haar1()

static void celt_haar1 ( float * X,

int N0,

int stride

)

static

Definition at line 232 of file opus_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 246 of file opus_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 263 of file opus_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 275 of file opus_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 358 of file opus_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 363 of file opus_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 424 of file opus_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 440 of file opus_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 452 of file opus_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 470 of file opus_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 480 of file opus_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 490 of file opus_pvq.c.

Referenced by QUANT_FN().

◆ QUANT_FN() [1/2]

static QUANT_FN ( pvq_decode_band )

static

Definition at line 886 of file opus_pvq.c.

◆ QUANT_FN() [2/2]

static QUANT_FN ( pvq_encode_band )

static

Definition at line 896 of file opus_pvq.c.

◆ ff_celt_pvq_init()

int av_cold ff_celt_pvq_init ( CeltPVQ ** pvq,

int encode

)

Definition at line 906 of file opus_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 926 of file opus_pvq.c.

Referenced by ff_celt_free(), and opus_encode_end().

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