[icecast-dev] song boundaries

[Deva Seetharam]

On Tue, 25 Feb 2003, Michael Smith wrote:

> On Tuesday 25 February 2003 16:13, Deva Seetharam wrote:
> > Mike,
> >
> > On Tue, 25 Feb 2003, Michael Smith wrote:
> > > On Tuesday 25 February 2003 10:31, Deva Seetharam wrote:
> > > > hello all,
> > > >
> > > > in icecast2, how can i determine when one *MP3* song ends and the next
> > > > one starts?
> > > >
> > > > i am involved in user preferences research and i am writing a
> > > > statistics collecting software the tracks the songs that are being
> > > > played, the number of people listening to particular songs, genre etc.
> > > >
> > > > i need to know how to hook into icecast2 so that i can collect these
> > > > information. i am reading the icecast src code. but it is not clear
> > > > where to look. could anyone pls. help?
> > >
> > > Generally - you can't. You can do in-depth audio analysis to try and
> > > guess, but that's WAY outside the scope of icecast.
> > >
> > > If you've got metadata updates synchronised well to the actual stream
> > > (rare - but it's not uncommon to be close enough), you can hook into the
> > > metadata updates (see handle_metadata_request() in connection.c, and a
> > > bunch more stuff in format_mp3.c), and you might assume that those are
> > > equivalent to song endings.
> > >
> > >
> > > You may be better off getting song info from the source program, and
> > > doing your own external synchronisation to icecast listener counts, etc.
> >
> > sorry, i dont quite understand what you are saying. could you pls.
> > explain?
>
> That's what the above was - an explanation. If you don't understand a specific
> part, you'll have to say which BIT you don't understand - I'm happy to
> explain, but I can't if you don't tell me what is unclear.

ah, sorry. what do you mean by the source program? streamer? what is
external synchronization?

btw, where can i find the mp3 straming specs? that is, i would like to
know the data format, metadata format and how they are sent together from
a streaming program to a broadcast server such as icecast.

> Mike
>
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