#include <twinvq.h>

Data Fields
AVCodecContext *	avctx

AVFloatDSPContext	fdsp

FFTContext	mdct_ctx [3]

const TwinVQModeTab *	mtab

int	is_6kbps

float	lsp_hist [2][20]
	LSP coefficients of the last frame.

float	bark_hist [3][2][40]
	BSE coefficients of last frame.

int16_t	permut [4][4096]

uint8_t	length [4][2]
	main codebook stride

uint8_t	length_change [4]

uint8_t	bits_main_spec [2][4][2]
	bits for the main codebook

int	bits_main_spec_change [4]

int	n_div [4]

float *	spectrum

float *	curr_frame
	non-interleaved output

float *	prev_frame
	non-interleaved previous frame

int	last_block_pos [2]

int	discarded_packets

float *	cos_tabs [3]

float *	tmp_buf

int	frame_size

int	frames_per_packet

int	cur_frame

TwinVQFrameData	bits [TWINVQ_MAX_FRAMES_PER_PACKET]

enum TwinVQCodec	codec

int(*	read_bitstream )(AVCodecContext avctx, struct TwinVQContext tctx, const uint8_t *buf, int buf_size)

void(*	dec_bark_env )(struct TwinVQContext tctx, const uint8_t in, int use_hist, int ch, float *out, float gain, enum TwinVQFrameType ftype)

void(*	decode_ppc )(struct TwinVQContext tctx, int period_coef, int g_coef, const float shape, float *speech)

Detailed Description

Definition at line 137 of file twinvq.h.

Field Documentation

AVCodecContext* TwinVQContext::avctx

Definition at line 138 of file twinvq.h.

Referenced by construct_perm_table(), dec_bark_env(), dec_gain(), decode_ppc(), ff_twinvq_decode_init(), imdct_output(), init_bitstream_params(), init_mdct_win(), metasound_read_bitstream(), read_and_decode_spectrum(), and twinvq_read_bitstream().

AVFloatDSPContext TwinVQContext::fdsp

Definition at line 139 of file twinvq.h.

Referenced by ff_twinvq_decode_init(), imdct_and_window(), imdct_output(), and read_and_decode_spectrum().

FFTContext TwinVQContext::mdct_ctx[3]

Definition at line 140 of file twinvq.h.

Referenced by ff_twinvq_decode_close(), imdct_and_window(), and init_mdct_win().

const TwinVQModeTab* TwinVQContext::mtab

int TwinVQContext::is_6kbps

Definition at line 144 of file twinvq.h.

Referenced by init_bitstream_params(), metasound_decode_init(), metasound_read_bitstream(), and twinvq_decode_init().

float TwinVQContext::lsp_hist[2][20]

LSP coefficients of the last frame.

Definition at line 147 of file twinvq.h.

Referenced by read_and_decode_spectrum().

float TwinVQContext::bark_hist[3][2][40]

BSE coefficients of last frame.

Definition at line 148 of file twinvq.h.

Referenced by dec_bark_env(), and ff_twinvq_decode_init().

int16_t TwinVQContext::permut[4][4096]

Definition at line 151 of file twinvq.h.

Referenced by construct_perm_table(), and dequant().

uint8_t TwinVQContext::length[4][2]

main codebook stride

Definition at line 152 of file twinvq.h.

Referenced by construct_perm_table(), dequant(), and init_bitstream_params().

uint8_t TwinVQContext::length_change[4]

Definition at line 153 of file twinvq.h.

Referenced by construct_perm_table(), dequant(), and init_bitstream_params().

uint8_t TwinVQContext::bits_main_spec[2][4][2]

bits for the main codebook

Definition at line 154 of file twinvq.h.

Referenced by dequant(), init_bitstream_params(), and read_cb_data().

int TwinVQContext::bits_main_spec_change[4]

Definition at line 155 of file twinvq.h.

Referenced by dequant(), init_bitstream_params(), and read_cb_data().

int TwinVQContext::n_div[4]

Definition at line 156 of file twinvq.h.

Referenced by construct_perm_table(), dequant(), init_bitstream_params(), read_and_decode_spectrum(), and read_cb_data().

float* TwinVQContext::spectrum

Definition at line 158 of file twinvq.h.

Referenced by ff_twinvq_decode_close(), ff_twinvq_decode_frame(), imdct_output(), and init_mdct_win().

float* TwinVQContext::curr_frame

non-interleaved output

Definition at line 159 of file twinvq.h.

Referenced by ff_twinvq_decode_close(), ff_twinvq_decode_frame(), imdct_and_window(), imdct_output(), and init_mdct_win().

float* TwinVQContext::prev_frame

non-interleaved previous frame

Definition at line 160 of file twinvq.h.

Referenced by ff_twinvq_decode_close(), ff_twinvq_decode_frame(), imdct_output(), and init_mdct_win().

int TwinVQContext::last_block_pos[2]

Definition at line 161 of file twinvq.h.

Referenced by imdct_and_window(), and imdct_output().

int TwinVQContext::discarded_packets

Definition at line 162 of file twinvq.h.

Referenced by ff_twinvq_decode_frame().

float* TwinVQContext::cos_tabs[3]

Definition at line 164 of file twinvq.h.

Referenced by eval_lpcenv(), eval_lpcenv_or_interp(), ff_twinvq_decode_close(), and init_mdct_win().

float* TwinVQContext::tmp_buf

Definition at line 167 of file twinvq.h.

Referenced by construct_perm_table(), ff_twinvq_decode_close(), imdct_and_window(), init_mdct_win(), and read_and_decode_spectrum().

int TwinVQContext::frame_size

Definition at line 169 of file twinvq.h.

Referenced by ff_twinvq_decode_init(), metasound_decode_init(), and twinvq_decode_init().

int TwinVQContext::frames_per_packet

Definition at line 169 of file twinvq.h.

Referenced by ff_twinvq_decode_frame(), ff_twinvq_decode_init(), and metasound_read_bitstream().

int TwinVQContext::cur_frame

Definition at line 169 of file twinvq.h.

Referenced by dec_gain(), ff_twinvq_decode_frame(), metasound_read_bitstream(), and read_and_decode_spectrum().

TwinVQFrameData TwinVQContext::bits[TWINVQ_MAX_FRAMES_PER_PACKET]

Definition at line 170 of file twinvq.h.

Referenced by dec_gain(), ff_twinvq_decode_frame(), metasound_read_bitstream(), read_and_decode_spectrum(), and twinvq_read_bitstream().

enum TwinVQCodec TwinVQContext::codec

Definition at line 172 of file twinvq.h.

Referenced by init_bitstream_params(), metasound_decode_init(), and twinvq_decode_init().

int(* TwinVQContext::read_bitstream)(AVCodecContext *avctx, struct TwinVQContext *tctx, const uint8_t *buf, int buf_size)

Definition at line 174 of file twinvq.h.

Referenced by ff_twinvq_decode_frame(), metasound_decode_init(), and twinvq_decode_init().

void(* TwinVQContext::dec_bark_env)(struct TwinVQContext *tctx, const uint8_t *in, int use_hist, int ch, float *out, float gain, enum TwinVQFrameType ftype)

Definition at line 176 of file twinvq.h.

Referenced by metasound_decode_init(), read_and_decode_spectrum(), and twinvq_decode_init().

void(* TwinVQContext::decode_ppc)(struct TwinVQContext *tctx, int period_coef, int g_coef, const float *shape, float *speech)

Definition at line 179 of file twinvq.h.

Referenced by metasound_decode_init(), read_and_decode_spectrum(), and twinvq_decode_init().

The documentation for this struct was generated from the following file:

libavcodec/twinvq.h

Data Fields

Detailed Description

Field Documentation