[ID3 Dev] How do I deal with this problem COMM frame

[Jud White]

ID3v2.4 uses syncsafe frame sizes, the same way the tag size is 
written.  The COMM frame you're talking about may not be corrupt.


Paul Taylor wrote:
> Its V24, what are their different ways of writing frame sizes ?
> Jud White wrote:
>> Have you tested to see if it's written with a syncsafe frame size?  
>> What ID3 version?
>>
>> Paul Taylor wrote:
>>> In my ID3 Tag library I am having problems with a particular tag. I 
>>> have a tag with a problem COMM frame, the COMM frame says that it is 
>>> 1000 bytes long, whereas in fact it is only about 500 bytes long. 
>>> The end result is that next 500 bytes of the ID3 tag are assumed to 
>>> be part of the Comment description when in fact they are other 
>>> frames, and no more frames are loaded after the COMM frame because 
>>> immediately after 1000 bytes after the COMM frame there is not a 
>>> valid frame identifier. There are lots of valuable frames after the 
>>> COMM frame and I would like my tag library to load as much 
>>> information as I can.
>>>
>>> Any ideas how I should:
>>>    Deal with frames in general that have an invalid size in their 
>>> header,
>>>    Determine in the */COMM.The actual text field/* the end of the 
>>> real data, I thought I could look for null terminaters because there 
>>> should be any in this field
>>>
>>> thanks Paul
>>>
>>>
>>>
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>>>
>>
>>
>>
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>
>
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