libavcodec/ac3dec.h File Reference

#include "libavutil/internal.h"
#include "libavutil/lfg.h"
#include "ac3.h"
#include "bitstream.h"
#include "dsputil.h"

Go to the source code of this file.

Data Structures
struct	AC3DecodeContext
Defines
#define	AC3_MAX_CHANNELS   7
#define	CPL_CH   0
#define	AC3_OUTPUT_LFEON   8
#define	AC3_MAX_COEFS   256
#define	AC3_BLOCK_SIZE   256
#define	MAX_BLOCKS   6
Functions
int	ff_eac3_parse_header (AC3DecodeContext *s)
	Parse the E-AC-3 frame header.
void	ff_eac3_decode_transform_coeffs_aht_ch (AC3DecodeContext *s, int ch)
	Decode mantissas in a single channel for the entire frame.

---

Define Documentation

#define AC3_BLOCK_SIZE   256

Definition at line 44 of file ac3dec.h.

#define AC3_MAX_CHANNELS   7

Definition at line 38 of file ac3dec.h.

#define AC3_MAX_COEFS   256

Definition at line 43 of file ac3dec.h.

Referenced by ff_eac3_decode_transform_coeffs_aht_ch().

#define AC3_OUTPUT_LFEON   8

Definition at line 41 of file ac3dec.h.

Referenced by ac3_decode_frame(), and decode_audio_block().

#define CPL_CH   0

Definition at line 39 of file ac3dec.h.

Referenced by calc_transform_coeffs_cpl(), decode_audio_block(), decode_transform_coeffs(), ff_eac3_parse_header(), and remove_dithering().

#define MAX_BLOCKS   6

Definition at line 45 of file ac3dec.h.

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Function Documentation

void ff_eac3_decode_transform_coeffs_aht_ch	(	AC3DecodeContext *	s,
		int	ch
	)

Decode mantissas in a single channel for the entire frame.

This is used when AHT mode is enabled.

Definition at line 84 of file eac3dec.c.

Referenced by decode_transform_coeffs_ch().

int ff_eac3_parse_header

(

AC3DecodeContext *

s

)

Parse the E-AC-3 frame header.

This parses both the bit stream info and audio frame header.

Definition at line 175 of file eac3dec.c.

Referenced by parse_frame_header().