libavcodec/aac_parser.c File Reference

#include "parser.h"
#include "aac_ac3_parser.h"
#include "aac_parser.h"
#include "bitstream.h"
#include "mpeg4audio.h"

Go to the source code of this file.

Defines
#define	AAC_HEADER_SIZE   7
Functions
int	ff_aac_parse_header (GetBitContext *gbc, AACADTSHeaderInfo *hdr)
	Parses AAC frame header.
static int	aac_sync (uint64_t state, AACAC3ParseContext *hdr_info, int *need_next_header, int *new_frame_start)
static av_cold int	aac_parse_init (AVCodecParserContext *s1)
Variables
AVCodecParser	aac_parser

---

Define Documentation

#define AAC_HEADER_SIZE   7

Definition at line 29 of file aac_parser.c.

Referenced by aac_parse_init(), aac_sync(), and ff_aac_parse_header().

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Function Documentation

static av_cold int aac_parse_init

(

AVCodecParserContext *

s1

)

[static]

Definition at line 102 of file aac_parser.c.

static int aac_sync	(	uint64_t	state,
		AACAC3ParseContext *	hdr_info,
		int *	need_next_header,
		int *	new_frame_start
	)			[static]

Definition at line 77 of file aac_parser.c.

Referenced by aac_parse_init().

int ff_aac_parse_header	(	GetBitContext *	gbc,
		AACADTSHeaderInfo *	hdr
	)

Parses AAC frame header.

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

Parameters:

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

Returns:

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

Definition at line 31 of file aac_parser.c.

Referenced by aac_sync(), and parse_adts_frame_header().

---

Variable Documentation

AVCodecParser aac_parser

Initial value:

 {
    { CODEC_ID_AAC },
    sizeof(AACAC3ParseContext),
    aac_parse_init,
    ff_aac_ac3_parse,
    ff_parse_close,
}

Definition at line 111 of file aac_parser.c.