adts_header.h File Reference

#include "adts_parser.h"
#include "defs.h"

Go to the source code of this file.

Data Structures
struct	AACADTSHeaderInfo

Enumerations
enum	AACParseError { AAC_PARSE_ERROR_SYNC = -0x1030c0a, AAC_PARSE_ERROR_SAMPLE_RATE = -0x3030c0a, AAC_PARSE_ERROR_FRAME_SIZE = -0x4030c0a }

Functions
int	ff_adts_header_parse (struct GetBitContext *gbc, AACADTSHeaderInfo *hdr)
	Parse the ADTS frame header to the end of the variable header, which is the first 54 bits. More...
int	ff_adts_header_parse_buf (const uint8_t buf[AV_AAC_ADTS_HEADER_SIZE+AV_INPUT_BUFFER_PADDING_SIZE], AACADTSHeaderInfo *hdr)
	Wrapper around ff_adts_header_parse() for users that don't already have a suitable GetBitContext. More...
int	avpriv_adts_header_parse (AACADTSHeaderInfo **phdr, const uint8_t *buf, size_t size)
	Parse the ADTS frame header contained in the buffer, which is the first 54 bits. More...

Enumeration Type Documentation

AACParseError

enum AACParseError

Enumerator
AAC_PARSE_ERROR_SYNC
AAC_PARSE_ERROR_SAMPLE_RATE
AAC_PARSE_ERROR_FRAME_SIZE

Definition at line 29 of file adts_header.h.

Function Documentation

ff_adts_header_parse()

int ff_adts_header_parse	(	struct GetBitContext *	gbc,
		AACADTSHeaderInfo *	hdr
	)

Parse the ADTS frame header to the end of the variable header, which is the first 54 bits.

Parameters

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

Returns

the size in bytes of the header parsed on success and AAC_PARSE_ERROR_* values otherwise.

Definition at line 30 of file adts_header.c.

Referenced by ff_adts_header_parse_buf(), ftr_decode_frame(), and parse_adts_frame_header().

ff_adts_header_parse_buf()

int ff_adts_header_parse_buf	(	const uint8_t	buf[AV_AAC_ADTS_HEADER_SIZE+AV_INPUT_BUFFER_PADDING_SIZE],
		AACADTSHeaderInfo *	hdr
	)

Wrapper around ff_adts_header_parse() for users that don't already have a suitable GetBitContext.

Definition at line 76 of file adts_header.c.

Referenced by aac_adtstoasc_filter(), aac_sync(), av_adts_header_parse(), avpriv_adts_header_parse(), ff_aac_ac3_parse(), and ftr_parse().

avpriv_adts_header_parse()

int avpriv_adts_header_parse	(	AACADTSHeaderInfo **	phdr,
		const uint8_t *	buf,
		size_t	size
	)

Parse the ADTS frame header contained in the buffer, which is the first 54 bits.

Parameters

[in]	buf	Pointer to buffer containing the first 54 bits of the frame.
[in]	size	Size of buffer containing the first 54 bits of the frame.
[out]	phdr	Pointer to pointer to struct AACADTSHeaderInfo for which memory is allocated and header info is written into it. After using the header information, the allocated memory must be freed by using av_free.

Returns

0 on success, AAC_PARSE_ERROR_* values on invalid input and ordinary AVERROR codes otherwise.

Definition at line 50 of file adts_parser.c.

Referenced by get_next_adts_frame().