FFmpeg: ModeTab Struct Reference

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Data Fields

ModeTab Struct Reference

Parameters and tables that are different for every combination of bitrate/sample rate. More...

Data Fields

struct FrameMode fmode [3]

frame type-dependant parameters

uint16_t size

frame size in samples

uint8_t n_lsp

number of lsp coefficients

const float * lspcodebook

uint8_t lsp_bit0

uint8_t lsp_bit1

uint8_t lsp_bit2

uint8_t lsp_split

number of CB entries for the LSP decoding

const int16_t * ppc_shape_cb

PPC shape CB.

uint8_t ppc_period_bit

number of the bits for the PPC period value

uint8_t ppc_shape_bit

number of bits of the PPC shape CB coeffs

uint8_t ppc_shape_len

size of PPC shape CB

uint8_t pgain_bit

bits for PPC gain

uint16_t peak_per2wid

constant for peak period to peak width conversion

Detailed Description

Parameters and tables that are different for every combination of bitrate/sample rate.

Definition at line 70 of file twinvq.c.

Field Documentation

struct FrameMode ModeTab::fmode[3]

frame type-dependant parameters

Definition at line 71 of file twinvq.c.

Referenced by construct_perm_table(), dec_bark_env(), dec_gain(), dec_lpc_spectrum_inv(), eval_lpcenv(), imdct_and_window(), init_bitstream_params(), init_mdct_win(), and read_and_decode_spectrum().

uint16_t ModeTab::size

frame size in samples

Definition at line 73 of file twinvq.c.

Referenced by construct_perm_table(), dec_lpc_spectrum_inv(), decode_ppc(), eval_lpcenv(), imdct_and_window(), imdct_output(), init_bitstream_params(), init_mdct_win(), read_and_decode_spectrum(), and twin_decode_frame().

uint8_t ModeTab::n_lsp

number of lsp coefficients

Definition at line 74 of file twinvq.c.

Referenced by dec_lpc_spectrum_inv(), decode_lsp(), eval_lpcenv(), and eval_lpcenv_or_interp().

const float* ModeTab::lspcodebook

Definition at line 75 of file twinvq.c.

Referenced by decode_lsp().

uint8_t ModeTab::lsp_bit0

Definition at line 78 of file twinvq.c.

Referenced by init_bitstream_params(), and read_and_decode_spectrum().

uint8_t ModeTab::lsp_bit1

Definition at line 79 of file twinvq.c.

Referenced by decode_lsp(), init_bitstream_params(), and read_and_decode_spectrum().

uint8_t ModeTab::lsp_bit2

Definition at line 80 of file twinvq.c.

Referenced by decode_lsp(), init_bitstream_params(), and read_and_decode_spectrum().

uint8_t ModeTab::lsp_split

number of CB entries for the LSP decoding

Definition at line 82 of file twinvq.c.

Referenced by decode_lsp(), init_bitstream_params(), and read_and_decode_spectrum().

const int16_t* ModeTab::ppc_shape_cb

PPC shape CB.

Definition at line 83 of file twinvq.c.

Referenced by read_and_decode_spectrum().

uint8_t ModeTab::ppc_period_bit

number of the bits for the PPC period value

Definition at line 86 of file twinvq.c.

Referenced by decode_ppc(), init_bitstream_params(), and read_and_decode_spectrum().

uint8_t ModeTab::ppc_shape_bit

number of bits of the PPC shape CB coeffs

Definition at line 88 of file twinvq.c.

Referenced by init_bitstream_params().

uint8_t ModeTab::ppc_shape_len

size of PPC shape CB

Definition at line 89 of file twinvq.c.

Referenced by construct_perm_table(), decode_ppc(), init_bitstream_params(), and read_and_decode_spectrum().

uint8_t ModeTab::pgain_bit

bits for PPC gain

Definition at line 90 of file twinvq.c.

Referenced by init_bitstream_params(), and read_and_decode_spectrum().

uint16_t ModeTab::peak_per2wid

constant for peak period to peak width conversion

Definition at line 93 of file twinvq.c.

Referenced by decode_ppc().

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

libavcodec/twinvq.c

Generated on Wed Jul 10 2013 23:48:37 for FFmpeg by doxygen 1.8.2