ac3_parser_internal.h File Reference

#include <stddef.h>
#include <stdint.h>
#include "ac3defs.h"
#include "get_bits.h"

Go to the source code of this file.

Data Structures
struct	AC3HeaderInfo

Functions
int	ff_ac3_parse_header (GetBitContext *gbc, AC3HeaderInfo *hdr)
	Parse AC-3 frame header. More...
int	avpriv_ac3_parse_header (AC3HeaderInfo **hdr, const uint8_t *buf, size_t size)
int	ff_ac3_find_syncword (const uint8_t *buf, int buf_size)

Function Documentation

ff_ac3_parse_header()

int ff_ac3_parse_header	(	GetBitContext *	gbc,
		AC3HeaderInfo *	hdr
	)

Parse AC-3 frame header.

Parse the header up to the lfeon element, which is the first 52 or 54 bits depending on the audio coding mode.

Parameters

[in]	gbc	BitContext containing the first 54 bits of the frame.
[out]	hdr	Pointer to struct where header info is written.

Returns

Returns 0 on success, -1 if there is a sync word mismatch, -2 if the bsid (version) element is invalid, -3 if the fscod (sample rate) element is invalid, or -4 if the frmsizecod (bit rate) element is invalid.

Referenced by ac3_decode_frame(), eac3_core_filter(), ffat_create_decoder(), and parse_frame_header().

avpriv_ac3_parse_header()

int avpriv_ac3_parse_header	(	AC3HeaderInfo **	hdr,
		const uint8_t *	buf,
		size_t	size
	)

Definition at line 267 of file ac3_parser.c.

Referenced by ff_aac_ac3_parse(), ff_hls_senc_parse_audio_setup_info(), get_next_ac3_eac3_sync_frame(), handle_eac3(), and mpegts_write_packet_internal().

ff_ac3_find_syncword()

int ff_ac3_find_syncword	(	const uint8_t *	buf,
		int	buf_size
	)

Referenced by ac3_decode_frame(), and ff_aac_ac3_parse().