adts_parser.c File Reference

#include "config.h"
#include <stddef.h>
#include <stdint.h>
#include "libavutil/mem.h"
#include "adts_header.h"
#include "adts_parser.h"

Go to the source code of this file.

Functions
int	av_adts_header_parse (const uint8_t *buf, uint32_t *samples, uint8_t *frames)
	Extract the number of samples and frames from AAC data. 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...

Function Documentation

av_adts_header_parse()

int av_adts_header_parse	(	const uint8_t *	buf,
		uint32_t *	samples,
		uint8_t *	frames
	)

Extract the number of samples and frames from AAC data.

Parameters

[in]	buf	pointer to AAC data buffer
[out]	samples	Pointer to where number of samples is written
[out]	frames	Pointer to where number of frames is written

Returns

Returns 0 on success, error code on failure.

Definition at line 28 of file adts_parser.c.

Referenced by spdif_get_offset_and_codec(), and spdif_header_aac().

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

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 47 of file adts_parser.c.

Referenced by ff_aac_ac3_parse(), and get_next_adts_frame().