mad_header Struct Reference

MPEG frame header information. More...

#include <frame.h>

Collaboration diagram for mad_header:

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Data Fields
enum mad_layer	layer
	audio layer (1, 2, or 3)
enum mad_mode	mode
	channel mode (see above)
int	mode_extension
	additional mode info
enum mad_emphasis	emphasis
	de-emphasis to use (see above)
unsigned long	bitrate
	stream bitrate (bps)
unsigned int	samplerate
	sampling frequency (Hz)
unsigned short	crc_check
	frame CRC accumulator
unsigned short	crc_target
	final target CRC checksum
int	flags
	flags (see below)
int	private_bits
	private bits (see below)
mad_timer_t	duration
	audio playing time of frame

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Detailed Description

MPEG frame header information.

Definition at line 55 of file frame.h.

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Field Documentation

enum mad_layer mad_header::layer

audio layer (1, 2, or 3)

Definition at line 56 of file frame.h.

Referenced by decode_header(), free_bitrate(), mad_frame_decode(), mad_header_decode(), and mad_header_init().

enum mad_mode mad_header::mode

channel mode (see above)

Definition at line 57 of file frame.h.

Referenced by decode_header(), III_decode(), mad_header_init(), mad_layer_I(), and mad_layer_II().

int mad_header::mode_extension

additional mode info

Definition at line 58 of file frame.h.

Referenced by decode_header(), III_decode(), III_stereo(), mad_header_init(), mad_layer_I(), and mad_layer_II().

enum mad_emphasis mad_header::emphasis

de-emphasis to use (see above)

Definition at line 59 of file frame.h.

Referenced by decode_header(), and mad_header_init().

unsigned long mad_header::bitrate

stream bitrate (bps)

Definition at line 61 of file frame.h.

Referenced by decode_header(), mad_header_decode(), mad_header_init(), and mad_layer_II().

unsigned int mad_header::samplerate

sampling frequency (Hz)

Definition at line 62 of file frame.h.

Referenced by decode_header(), free_bitrate(), III_decode(), mad_header_decode(), mad_header_init(), mad_layer_II(), and mad_synth_frame().

unsigned short mad_header::crc_check

frame CRC accumulator

Definition at line 64 of file frame.h.

Referenced by decode_header(), mad_header_init(), mad_layer_I(), mad_layer_II(), and mad_layer_III().

unsigned short mad_header::crc_target

final target CRC checksum

Definition at line 65 of file frame.h.

Referenced by decode_header(), mad_header_init(), mad_layer_I(), mad_layer_II(), and mad_layer_III().

int mad_header::flags

flags (see below)

Definition at line 67 of file frame.h.

Referenced by decode_header(), free_bitrate(), III_decode(), III_stereo(), mad_frame_decode(), mad_header_decode(), mad_header_init(), mad_layer_I(), mad_layer_II(), and mad_layer_III().

int mad_header::private_bits

private bits (see below)

Definition at line 68 of file frame.h.

Referenced by decode_header(), mad_header_init(), and mad_layer_III().

mad_timer_t mad_header::duration

audio playing time of frame

Definition at line 70 of file frame.h.

Referenced by mad_header_decode(), and mad_header_init().

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The documentation for this struct was generated from the following file:

• frame.h