[vorbis] Finding length (time) of encoded birstream

[John Lundy]

OK, easy enough. And thanks.

However, the implication is that the entire file needs to be decoded in
order to determine the playtime. This sounds unreasonable just to display a
files properties.

Is there a more realistic alternative?

John

----- Original Message -----
From: "Ed Sweetman" <ed.sweetman at wmich.edu>
To: <vorbis at xiph.org>
Sent: Sunday, March 10, 2002 7:28 PM
Subject: Re: [vorbis] Finding length (time) of encoded birstream

<p>>
> ogg_page og;
> vorbis_info vi;
>
> final_granulepos = ogg_page_granulepos (&og); // (done after last page
> has been decoded (your final position)
> final_granulepos / vi.rate;  // (gives you time of stream in seconds)
>
>
>
> On Sun, 2002-03-10 at 19:37, John Lundy wrote:
> > I'm adding some final features to my CD Ripper and Encoder before the
full,
> > version 1 release. As part of that release, the program will offer the
> > ability to play (for review purposes) both WAV and OGG files. I have
both
> > the decoder and playback code working but I have one final issue to
resolve:
> > finding the play time for the Vorbis bitstream that is being played
back. I
> > used the example_encode and example_decode code as the initial basis for
my
> > code model (but it has really changes a bunch since I started the
project
> > <grin>). Anyway, can someone inform me how I can get this information
from
> > the file using the OGG, VORBIS or VORBISENC DLL interfaces? I'd rather
not
> > add any new interfaces to get this information. TIA.
> >
> > John Lundy
> >
> >
> >
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