LSP dequantization routines

LSP dequantization routines, for 10/16LSPs and independent/residual coding. More...

Functions
static void	dequant_lsp10i (GetBitContext *gb, double *lsps)
	Parse 10 independently-coded LSPs.
static void	dequant_lsp10r (GetBitContext *gb, double *i_lsps, const double *old, double *a1, double *a2, int q_mode)
	Parse 10 independently-coded LSPs, and then derive the tables to generate LSPs for the other frames from them (residual coding).
static void	dequant_lsp16i (GetBitContext *gb, double *lsps)
	Parse 16 independently-coded LSPs.
static void	dequant_lsp16r (GetBitContext *gb, double *i_lsps, const double *old, double *a1, double *a2, int q_mode)
	Parse 16 independently-coded LSPs, and then derive the tables to generate LSPs for the other frames from them (residual coding).

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Detailed Description

LSP dequantization routines, for 10/16LSPs and independent/residual coding.

Note:

we assume enough bits are available, caller should check. lsp10i() consumes 24 bits; lsp10r() consumes an additional 24 bits; lsp16i() consumes 34 bits; lsp16r() consumes an additional 26 bits.

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Function Documentation

static void dequant_lsp10i	(	GetBitContext *	gb,
		double *	lsps
	)			[static]

Parse 10 independently-coded LSPs.

Definition at line 836 of file wmavoice.c.

Referenced by dequant_lsp10r(), and synth_superframe().

static void dequant_lsp10r	(	GetBitContext *	gb,
		double *	i_lsps,
		const double *	old,
		double *	a1,
		double *	a2,
		int	q_mode
	)			[static]

Parse 10 independently-coded LSPs, and then derive the tables to generate LSPs for the other frames from them (residual coding).

Definition at line 862 of file wmavoice.c.

Referenced by synth_superframe().

static void dequant_lsp16i	(	GetBitContext *	gb,
		double *	lsps
	)			[static]

Parse 16 independently-coded LSPs.

Definition at line 898 of file wmavoice.c.

Referenced by dequant_lsp16r(), and synth_superframe().

static void dequant_lsp16r	(	GetBitContext *	gb,
		double *	i_lsps,
		const double *	old,
		double *	a1,
		double *	a2,
		int	q_mode
	)			[static]

Parse 16 independently-coded LSPs, and then derive the tables to generate LSPs for the other frames from them (residual coding).

Definition at line 931 of file wmavoice.c.

Referenced by synth_superframe().