dolby_e.h File Reference

#include <stdint.h>
#include "get_bits.h"

Go to the source code of this file.

Data Structures
struct	DolbyEHeaderInfo
struct	DBEContext

Macros
#define	FRAME_SAMPLES   1792
#define	MAX_PROG_CONF   23
#define	MAX_PROGRAMS   8
#define	MAX_CHANNELS   8

Functions
int	ff_dolby_e_convert_input (DBEContext *s, int nb_words, int key)
	Use the provided key to transform the input into data (put into s->buffer) suitable for further processing and initialize s->gb to read said data. More...
int	ff_dolby_e_parse_header (DBEContext *s, const uint8_t *buf, int buf_size)
	Initialize DBEContext and parse Dolby E metadata. More...

Macro Definition Documentation

FRAME_SAMPLES

#define FRAME_SAMPLES   1792

Definition at line 27 of file dolby_e.h.

MAX_PROG_CONF

#define MAX_PROG_CONF   23

Definition at line 29 of file dolby_e.h.

MAX_PROGRAMS

#define MAX_PROGRAMS   8

Definition at line 30 of file dolby_e.h.

MAX_CHANNELS

#define MAX_CHANNELS   8

Definition at line 31 of file dolby_e.h.

Function Documentation

ff_dolby_e_convert_input()

int ff_dolby_e_convert_input	(	DBEContext *	s,
		int	nb_words,
		int	key
	)

Use the provided key to transform the input into data (put into s->buffer) suitable for further processing and initialize s->gb to read said data.

Definition at line 60 of file dolby_e_parse.c.

Referenced by ff_dolby_e_parse_header(), and parse_audio().

ff_dolby_e_parse_header()

int ff_dolby_e_parse_header	(	DBEContext *	s,
		const uint8_t *	buf,
		int	buf_size
	)

Initialize DBEContext and parse Dolby E metadata.

Set word_bits/word_bytes, input, input_size, key_present and parse the header up to the end_gain element.

Parameters

[out]	s	DBEContext.
[in]	buf	raw input buffer.
[in]	buf_size	must be 3 bytes at least.

Returns

Returns 0 on success, AVERROR_INVALIDDATA on error

Definition at line 97 of file dolby_e_parse.c.

Referenced by dolby_e_decode_frame(), and dolby_e_parse().