[mad-dev] Xing ID3 and VBR

[Rob Leslie]

On Tuesday, November 5, 2002, at 07:47  PM, Joe Drew wrote:
> Russell O'Connor wrote:
>> Specifically, if I get my application to read ID3 tags, will I be 
>> able to
>> find out the decoded length of an audio file without going through and
>> counting all the frames?
>
> Unless I am incorrect, this is *not* the case. id3 tags don't contain 
> this information as far as I know.

The exception is if the tag contains a TLEN frame; this is supposed to 
contain the length of the audio file in milliseconds, represented as a 
numeric string. This frame is not very common, though.

-- 
Rob Leslie
rob@mars.org