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Efika 5200B Project
Reggae on Efika

in category Multimedia
proposed by Grzegorz Kraszewski on 21st February 2006 (accepted on 20th March 2006)

Blog Entry

  MS ADPCM decoder is working
posted by Grzegorz Kraszewski on 10th April 2007

I've just got a first working version of MicroSoft ADPCM audio decoder. It is an universal, multichannel one (I've never seen more than two channels in an MS ADPCM WAVE, but Reggae is ready for this ayway). I'm going to write specialized, faster versions for mono and stereo. This is the second decoder using my BlockDecoder C++ framework. The framework worked after minor tweaks (one private method is now protected, I've also forgot to initialize one class member), so I've got buffering and single frame precision seek working automatically just after I've implemented the whole block decoding function. Using such framework saves a lot of work for block based audio codecs, and I'm going to use it in FLAC and MPEG audio decoders.

In the meantime I'm preparing to launch MorphOS on my Efika. The PSU is here already, tested to be working. I will probably post some photos of components and maybe booting process tomorrow.

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