DelfAIFF

Short:        AIFF sound player for Delfina DSP
Author:       Smack/Infect! (Michael Henke)
Type:         mus/play
Architecture: m68k-amigaos


 #features
   -plays 16bit files: AIFF-SSND (uncompressed) and AIFF-ADP4 (4bit ADPCM)
   -multi-stage buffering system for smooth playback while loading
   -full source code included


 #requirements
   -CPU 68020+
   -AmigaOS V37+
   -Delfina DSP board - delfina.library V4+
   -asyncio.library V39+

   -tested on: A1200 (68030+882 @ 40MHz, 16MB Fast, Delfina1200 DSP)


 #recommended
   -reqtools.library V38+
   -FastRAM
   -some AIFF files :-)


 #news
   -some code cleanups and optimizations
    (see src/CHANGES for details)
   -vbcc makefile included
    (thanks to anton_rolls@melbourne.net)

;
;
;---------------------------------
;
; DelfAIFF 0.3
; code by Smack/Infect!
; Fri 01-Oct-1999
;
;---------------------------------
;
;


 #introduction
   This is my first program for Delfina DSP (nice sound board featuring
   the powerful Motorola 56002 DSP). I have no intentions to implement
   many more features in DelfAIFF because for me it's rather a coding
   exercise than a full featured tool. Anyway, if you find a bug or have
   any comments or ideas then don't hesitate to contact me!
   

 #how to use it
   DelfAIFF is a shell-only program. The argument template is:
   FILES/M          one or more filenames
                    (if omitted a reqtools file requester appears)
   NOPLAY/S         don't play but just print file info

   During playback you can use these controls:
   CTRL-E           pause/continue
   CTRL-C           stop current file, start next file
   CTRL-D           exit program


 #technical stuff
   Those AIFF-ADP4 files are created using this program:
      AudioConvert V1.0 (c) Stephane TAVENARD
      (distributed together with SongPlayer)
   The 4bit ADPCM method reduces the file size of 16bit sound to 1/4 while
   retaining a surprisingly high sound quality.
   DelfAIFF utilizes Delfina DSP for decoding this file format and therefore
   needs only very little CPU time. (perfect for background music even on
   slow 68030 machines:-)

   I'm planning to code an MPEG audio decoder for Delfina DSP. The 56002 DSP
   should have enough power to handle this in realtime. (faster than 68060!)
   Anybody interested? Anybody able to support me with some docs and sources?
   Then contact me now!

   UPDATE:
   The MPEG audio player is under construction. I downloaded lots of sources
   from all over the Web and now I'm busy converting them to DSP56K assembly.
   I hope to get it working before Y2K comes upon us, stay tuned! :-)


 #author
   email: smack@smack.de

   DelfAIFF is Copyright (c) 1999 by Michael Henke.
   It is released as FREEWARE, which means it may be distributed and used
   for free, but no profit may be made with it (neither by selling the
   program nor by using it for commercial purposes). The program and the
   information within this text are provided 'AS-IS'. The entire risk as
   to its quality and performance is with the user. In no event will the
   author be liable for direct, indirect, incidental or consequential
   damages resulting from any defect in the program.