[ID3 Dev] Info Sought

[Kirk McMillan]

Hi Andy,

OK I will. Thanks !

I need to ascertain one fact. The document I have 
(id3.org/id3v2.4.0-structure.txt) says each
frame header consists of 10 bytes.

The next byte is (always?) a zero and the actual information starts 
after that.

Is the frame header actually 11 bytes, or does the information require a 
leading zero, ignored by the reader ?

Some fields (COMM only I believe) have extra bytes consisting of "0 eng 
0". When this is present, can
it be detected in the frame header, or should the reader check for it ?

If the highest number that can be represented in the 32 bit synchsafe 
integer can store 28 bits of information,  are these bytes
values  7F 7F 7F 7F.  Or  are they  15 FF FF FF  ?

Hope that's not too much at once.
Thanks - Kirk



Andy Kernahan wrote:

> Kirk,
>
>    fire away with whatever questions you have, this is a place for 
> both specifics and for more general questions.
>
>    Andy.
>
>
> ----- Original Message ----- From: "Kirk McMillan" <kirkm at xtra.co.nz>
> To: <id3v2 at id3.org>
> Sent: Wednesday, October 26, 2005 4:08 AM
> Subject: [ID3 Dev] Info Sought
>
>
>> Dear List,
>>
>> I'm a newbie with ID3V2 tags. My aim to is write a VB routine within 
>> MSAccess to tag
>> my albums automatically (as they're riped to mp3 format).
>>
>> I have read the structure doc by Martin Nilsson.
>>
>> Some of the statements seem to be at odds with my findings as I 
>> interpret frame information (in Winamp).
>> Some I simply don't understand and I'm sure there's more to consider.
>>
>> Is this the place for specfic questions. Or, should I be looking 
>> elsewhere ? FAQ etc ?
>>
>> With thanks,
>> Kirk
>>
>>
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