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List:       ogg-dev
Subject:    Re: [ogg-dev] What does oggz_tell() actually return?
From:       Conrad Parker <conrad () metadecks ! org>
Date:       2010-02-25 2:02:18
Message-ID: dba6c0831002241802w3c32804foc029c113f6762e8c () mail ! gmail ! com
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On 30 January 2010 07:11, Pauli Ojala <pauli@lacquer.fi> wrote:
> Hello all,
>
> I'm trying to use liboggz to parse and display Ogg media files. I'm
> wondering what the return value of oggz_tell() actually is and how is
> one supposed to use it.
>
> The documentation says that oggz_tell() returns "the current offset of
> oggz". This sounds like it would be basically the file position
> indicator, and could be used to seek within the Ogg file to a specific
> byte position.
>
> The problem is that the values actually returned by this function
> extend way beyond the file's length. Is there some constant by which I
> should scale these values to make them usable?
>
> (To narrow down the problem, I modified oggz_tell() to print the
> result of a plain ftello(oggz->file) call. Here's an example value
> illustrating the problem: ftello() says the file position is 384000,
> but oggz_tell() returns 3623387. For the last packet in the file,
> ftello() reports 8322048, while oggz_tell() says 79363430... Where
> does this multiplier of roughly 9.5 come from?)

Hi,

firstly, what version of liboggz are you using?

Conrad.
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