libavcodec/wma.h File Reference

#include "bitstream.h"
#include "dsputil.h"

Go to the source code of this file.

Data Structures
struct	CoefVLCTable
struct	WMACodecContext
Defines
#define	BLOCK_MIN_BITS   7
#define	BLOCK_MAX_BITS   11
#define	BLOCK_MAX_SIZE   (1 << BLOCK_MAX_BITS)
#define	BLOCK_NB_SIZES   (BLOCK_MAX_BITS - BLOCK_MIN_BITS + 1)
#define	HIGH_BAND_MAX_SIZE   16
#define	NB_LSP_COEFS   10
#define	MAX_CODED_SUPERFRAME_SIZE   16384
#define	MAX_CHANNELS   2
#define	NOISE_TAB_SIZE   8192
#define	LSP_POW_BITS   7
#define	VLCBITS   9
#define	VLCMAX   ((22+VLCBITS-1)/VLCBITS)
Functions
int	ff_wma_init (AVCodecContext *avctx, int flags2)
int	ff_wma_total_gain_to_bits (int total_gain)
int	ff_wma_end (AVCodecContext *avctx)
Variables
const uint16_t	ff_wma_hgain_huffcodes [37]
const uint8_t	ff_wma_hgain_huffbits [37]
const float	ff_wma_lsp_codebook [NB_LSP_COEFS][16]
const uint32_t	ff_wma_scale_huffcodes [121]
const uint8_t	ff_wma_scale_huffbits [121]

---

Define Documentation

#define BLOCK_MAX_BITS   11

Definition at line 30 of file wma.h.

#define BLOCK_MAX_SIZE   (1 << BLOCK_MAX_BITS)

Definition at line 31 of file wma.h.

#define BLOCK_MIN_BITS   7

Definition at line 29 of file wma.h.

Referenced by ff_wma_init().

#define BLOCK_NB_SIZES   (BLOCK_MAX_BITS - BLOCK_MIN_BITS + 1)

Definition at line 33 of file wma.h.

#define HIGH_BAND_MAX_SIZE   16

Definition at line 36 of file wma.h.

Referenced by wma_decode_block().

#define LSP_POW_BITS   7

Definition at line 47 of file wma.h.

Referenced by pow_m1_4(), and wma_lsp_to_curve_init().

#define MAX_CHANNELS   2

Definition at line 43 of file wma.h.

#define MAX_CODED_SUPERFRAME_SIZE   16384

Definition at line 41 of file wma.h.

Referenced by wma_decode_superframe().

#define NB_LSP_COEFS   10

Definition at line 38 of file wma.h.

Referenced by decode_exp_lsp(), and wma_lsp_to_curve().

#define NOISE_TAB_SIZE   8192

Definition at line 45 of file wma.h.

Referenced by ff_wma_init(), and wma_decode_block().

#define VLCBITS   9

Definition at line 50 of file wma.h.

Referenced by init_coef_vlc(), and wma_decode_block().

#define VLCMAX   ((22+VLCBITS-1)/VLCBITS)

Definition at line 51 of file wma.h.

Referenced by wma_decode_block().

---

Function Documentation

int ff_wma_end

(

AVCodecContext *

avctx

)

Definition at line 362 of file wma.c.

int ff_wma_init	(	AVCodecContext *	avctx,
		int	flags2
	)

Definition at line 65 of file wma.c.

Referenced by encode_init(), and wma_decode_init().

int ff_wma_total_gain_to_bits

(

int

total_gain

)

Definition at line 354 of file wma.c.

Referenced by encode_block(), and wma_decode_block().

---

Variable Documentation

const uint8_t ff_wma_hgain_huffbits[37]

Definition at line 67 of file wmadata.h.

Referenced by wma_decode_init().

const uint16_t ff_wma_hgain_huffcodes[37]

Definition at line 59 of file wmadata.h.

Referenced by wma_decode_init().

const float ff_wma_lsp_codebook[NB_LSP_COEFS][16]

Definition at line 75 of file wmadata.h.

Referenced by decode_exp_lsp().

const uint8_t ff_wma_scale_huffbits[121]

Definition at line 114 of file wmadata.h.

Referenced by encode_exp_vlc(), and wma_decode_init().

const uint32_t ff_wma_scale_huffcodes[121]

Definition at line 95 of file wmadata.h.

Referenced by encode_exp_vlc(), and wma_decode_init().