Hello,

I am making some mp3 analyzing tool.
I am not certain that the following is correct mp3 format, so
would you advise me wheather it is correct?


(ID3v2)
<frame stream>
-----------------------------------
frame side information                    4byte
(CRC)
{main_data_begin,private_bits,scfsi_data} 16bit(stereo) or 18bit(mono)
granule side information                  59bit * 4(2ch,2gr)
main data                                 
-----------------------------------
(ID3v1)


and about the size of main data...

Why are there mp3 files in which the value of part2_3_length is zero?
e.g. http://php.s3.to/bbs/up/img/216.png
Isn't the part2_3_length length of main data per 1granule, 1channel?


with regards,

-- 
Miyoko Shioda <[EMAIL PROTECTED]>


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