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What is the fastest method to get the duration of a vbr mp3 file Is it a must to scan the whole file once?
Yfwong
No. Traverse the ID3v2 metadata at the start of the file, looking for the TLEN frame. If it exists, the length can be found there. If there is no TLEN frame, then you will have to traverse each data frame to calculate the overall length. Once determined, insert a TLEN frame with the appropriate length into the file's ID3v2 metadata.
Wiki User
∙ 8y ago
Wiki User
∙ 9y agoNo. The duration can be encoded as a data frame at the start of the file.
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