Adding Audio Support

[cheesecake]

Is it possible to add support for audio formats that are not native to rockbox?
Like winamp's plugins that allow it to play other file formats.

[AlexP]

Yes, you can port a codec to Rockbox (bearing in mind things liked conversion to fixed point, no malloc(), etc) - that is how the vast support for current formats got there.

You could implement it as a plugin I believe, but as it wouldn't be integrated properly with the playback engine, it would have very limited point.  Much better to make it a codec.

Out of interest, what format do you miss?

[Febs]

There are no plugins that allow support for additional codecs other than those included with the Rockbox build, so no, it is not possible to add support for additional codecs in that sense. What codec are you looking for that Rockbox does not already support?

[cheesecake]

The format I wanted to use was .brstm
I have a winamp plugin to read it, but was having trouble converting it to a useable format, so I didn't know if it was possible to have something like this.

[LambdaCalculus]

What is .brstm? Can you tell us more about that codec?

[MarcGuay]

A quick search led me to something saying that they're files which have been ripped from a Nintendo game disc.  I also found some instructions on how to convert them to .wav using WinAmp.  

[LinusN]

How disappointing. I googled for "brstm codec" and the first hit was this thread...  

[cheesecake]

MarcGuay, where was the site? I've been trying to do it, but can't figure it out.

[MarcGuay]

http://www.zeldauniverse.net/forums/general-gaming/75437-help-brstm-files.html

I have no idea, by the way, if the files are lossless to begin with.  If they're compressed, and you output them to .wav and then compress them again, they'll probably sound pretty crummy.  

[LambdaCalculus]

From what I can gather from that link, they seem to be GameCube audio files.

Guess they used other codecs besides ADX files!

[cheesecake]

Actually i found a file writer output plugin for winamp, so i now have them in an mp3 format. Thanks for the site though! I appreciate all your guys help!

[Chronon]

There are no plugins that allow support for additional codecs other than those included with the Rockbox build, so no, it is not possible to add support for additional codecs in that sense. What codec are you looking for that Rockbox does not already support?

Do you mean 3rd party plugins such as in Winamp?  Or are you disqualifying MidiPlay because it is more like an interpreter than a simple codec?  I.e. it doesn't recreate an encoded waveform, it synthesizes sound at runtime according to a local patch set.

[AlexP]

Yes, I was referring to plugins in the sense that Chronon has outlined when I said it was possible - what isn't of course possible is just to 'drop' in another codec as a plugin straight off.