FFmpeg: libavcodec/opus/dec_celt.c File Reference

FFmpeg

#include <float.h>
#include "libavutil/mem.h"
#include "celt.h"
#include "tab.h"
#include "pvq.h"

Go to the source code of this file.

Functions
static void	celt_decode_coarse_energy (CeltFrame f, OpusRangeCoder rc)

static void	celt_decode_fine_energy (CeltFrame f, OpusRangeCoder rc)

static void	celt_decode_final_energy (CeltFrame f, OpusRangeCoder rc)

static void	celt_decode_tf_changes (CeltFrame f, OpusRangeCoder rc)

static void	celt_denormalize (CeltFrame f, CeltBlock block, float *data)

static void	celt_postfilter_apply_transition (CeltBlock block, float data)

static void	celt_postfilter (CeltFrame f, CeltBlock block)

static int	parse_postfilter (CeltFrame f, OpusRangeCoder rc, int consumed)

static void	process_anticollapse (CeltFrame f, CeltBlock block, float *X)

int	ff_celt_decode_frame (CeltFrame f, OpusRangeCoder rc, float **output, int channels, int frame_size, int start_band, int end_band)

void	ff_celt_flush (CeltFrame *f)

void	ff_celt_free (CeltFrame **f)

int	ff_celt_init (AVCodecContext avctx, CeltFrame *f, int output_channels, int apply_phase_inv)

Detailed Description

Opus CELT decoder

Definition in file dec_celt.c.

Function Documentation

◆ celt_decode_coarse_energy()

static void celt_decode_coarse_energy	(	CeltFrame *	f,
		OpusRangeCoder *	rc
	)

static

Definition at line 37 of file dec_celt.c.

Referenced by ff_celt_decode_frame().

◆ celt_decode_fine_energy()

static void celt_decode_fine_energy	(	CeltFrame *	f,
		OpusRangeCoder *	rc
	)

static

Definition at line 81 of file dec_celt.c.

Referenced by ff_celt_decode_frame().

◆ celt_decode_final_energy()

static void celt_decode_final_energy	(	CeltFrame *	f,
		OpusRangeCoder *	rc
	)

static

Definition at line 100 of file dec_celt.c.

Referenced by ff_celt_decode_frame().

◆ celt_decode_tf_changes()

static void celt_decode_tf_changes	(	CeltFrame *	f,
		OpusRangeCoder *	rc
	)

static

Definition at line 122 of file dec_celt.c.

Referenced by ff_celt_decode_frame().

◆ celt_denormalize()

static void celt_denormalize	(	CeltFrame *	f,
		CeltBlock *	block,
		float *	data
	)

static

Definition at line 149 of file dec_celt.c.

Referenced by ff_celt_decode_frame().

◆ celt_postfilter_apply_transition()

static void celt_postfilter_apply_transition	(	CeltBlock *	block,
		float *	data
	)

static

Definition at line 163 of file dec_celt.c.

Referenced by celt_postfilter().

◆ celt_postfilter()

static void celt_postfilter	(	CeltFrame *	f,
		CeltBlock *	block
	)

static

Definition at line 208 of file dec_celt.c.

Referenced by ff_celt_decode_frame().

◆ parse_postfilter()

static int parse_postfilter	(	CeltFrame *	f,
		OpusRangeCoder *	rc,
		int	consumed
	)

static

Definition at line 236 of file dec_celt.c.

Referenced by ff_celt_decode_frame().

◆ process_anticollapse()

static void process_anticollapse	(	CeltFrame *	f,
		CeltBlock *	block,
		float *	X
	)

static

Definition at line 271 of file dec_celt.c.

Referenced by ff_celt_decode_frame().

◆ ff_celt_decode_frame()

int ff_celt_decode_frame	(	CeltFrame *	f,
		OpusRangeCoder *	rc,
		float **	output,
		int	channels,
		int	frame_size,
		int	start_band,
		int	end_band
	)

Definition at line 323 of file dec_celt.c.

Referenced by opus_decode_frame(), and opus_decode_redundancy().

◆ ff_celt_flush()

void ff_celt_flush ( CeltFrame * f )

Definition at line 497 of file dec_celt.c.

Referenced by ff_celt_init(), opus_decode_flush(), and opus_decode_frame().

◆ ff_celt_free()

void ff_celt_free ( CeltFrame ** f )

Definition at line 528 of file dec_celt.c.

Referenced by ff_celt_init(), and opus_decode_close().

◆ ff_celt_init()

int ff_celt_init	(	AVCodecContext *	avctx,
		CeltFrame **	f,
		int	output_channels,
		int	apply_phase_inv
	)

Definition at line 545 of file dec_celt.c.

Referenced by opus_decode_init().