[Scummvm-devel] Idea: IndexedMp3AudioStream

[Michael Madsen]

> -----Original Message-----
> From: Max Horn [mailto:max at quendi.de]
> Sent: Friday, October 08, 2010 12:00 PM
> To: yotam barnoy
> Cc: ScummVM devel
> Subject: Re: [Scummvm-devel] Idea: IndexedMp3AudioStream
> 
> Yeah; note that libid3tag also support creating ID3 frame data, so it
> would be useful for a tool that adds ID3 data to existing MP3s. For
> *parsing* those (esp. only parsing the few we are interested in, and
> skipping the rest), we could roll our own code. However, I am not sure how
> complex that parsing actually is. But since there are various open source
> libs for that out there, we can find out... ;)

IIRC, ID3 isn't that hard to parse, especially not since we're only interested in a few fields.

I recall writing some simple Delphi code for parsing the basic metadata (title, author, that sort of thing), but it seems I've lost that over the years, so unfortunately, I only have my memory to go by.

> 
> However, the XING header might be a lot easier to parse (which is good:
> small code size, easier debugging :).

...but we also lose the ability to fine-tune how many data points we have. XING provides exactly 100 data points, whereas the ID3 solution can provide us with many more. Considering that we're mainly planning this for small, embedded devices with limited processing power, that extra bit of flexibility *might* be nice to have.

Michael