CODEWITHSUNDEEP
asp.netjavascriptjquerymp3
HP.
HP.

Reputation: 19896

Get mp3 total track time using either javascript or ASP.NET

I am using the below jQuery plugin for playing mp3 www.happyworm.com/jquery/jplayer

However, there is a bug in Flash that the total play (track) time won't show up correctly UNTIL AFTER the whole mp3 is completed downloaded.

I wonder if there is a way to work around this to get the correct total time using either javascript / another flash / even backend library in ASP.NET. Any suggestion helps. Thanks

Upvotes: 0

Views: 1411

Answers (1)

Herms
Herms

Reputation: 38798

You sure that's a bug? Looking at the header definition for the MP3 format I don't see any values for the length of the file. Generally applications that play MP3s would have to calculate the time, and that may not be doable until the entire file is downloaded. So the behavior you're seeing from Flash might be expected.

Theoretically if it's a fixed bitrate file (as opposed to VBR) then knowing the bitrate (gotten from the header) and the total size of the file should be enough to calculate it. However, the server would have to report the size of the file in the response headers (and that's not guaranteed to be accurate).

My guess is you'd need some service on the server that could calculate the length and report that to you in a separate request.

Upvotes: 1

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