Lame Header

Extended Lame Header

Octet↓, Bit→	0	1	2	3	4	5	6
0	revision				vbr_method
1	lowpass_filter
2	track_peak
3
4
5
6	track_gain Replay Gain Data Format
7
8	album_gain Replay Gain Data Format
9
10	album_gain_adj
11	encoding_flags				ath_type
12	bitrate
13	encoder_delay_start
14	encoder_delay_start				encoder_padding_end
15	encoder_padding_end
16	source_sample_frequency_enum		unwise_setting_used	stereo_mode			noise_shaping
17	mp3_gain_sign	mp3_gain
18			surround_info			preset_used
19	preset_used
20	music_length
21
22
23
24	music_crc
25	header_crc
26

In case of Lame, the meaning is the following:

Flag	Description
`000?`	LAME uses `--nspsytune`
`00?0`	LAME uses `--nssafejoint`
`0?00`	This track is `--nogap` continued in a next track, is true for all but the last track in a `--nogap` album
`?000`	This track is the `--nogap` continuation of an earlier one is true for all but the first track in a `--nogap` album

Flag value	Description
`0`	false
`1`	true