Short: Player/Decoder for MPEG audio Layer III streams Author: Tomislav Uzelac / Christian Sauer (Amiga port) Uploader: sauer cip informatik uni-wuerzburg de (Christian Sauer) Type: mus/play Replaces: mus/misc/amp.lha Requires: ixemul.library v46 Architecture: m68k-amigaos AHI v4 for making noise NOTE TO THE MAINTAINERS OF AMINET: The last ports of amp until version 0.7.2 have been made by Michael Cheng. He gave me a written permission to replace his ports and to continue his work. Thanks Michael! This is the Amiga port of amp-0.7.3, which is finally able to play MPEG audio Layer III in realtime on a 68060/50! However, mpega (also to find in mus/play) is still faster - but I want to continue this port as it will be useful when PowerPC-boards are available. Installation: Copy the executable for your type of CPU wherever you want, that's it! If you have installed X-Windows from ADE (ftp://ftp.ninemoons.com) and want to have a GUI, you can use the one in xmpeg3.tgz, but you also need to install tcl/tk. Usage: You can get all options by simply starting amp without any options. I have removed buffered output (-b and -nobuffer options) as it slows down performance at the moment without asynchronous writes, but I plan to implement it in the next version. AHI Modes are set via AHI-Prefs, part of AHI v4. The performance you achieve is stronly dependent on which audio mode you choose. On my configuration, amp needs about 95% with paula-14bit-stereo++ and about 65% with paula-8bit-mono, although all samples are calculated in 16 Bit/Stereo! (only with a Stereo-MP3, of course ;)) note: amp always uses Unit 0, this restriction will change in the future. If amp should stop without any obvious reason, it's because of heavy CPU-load, then AHI might forget sometimes to signal the end of a played buffer - I hope that this will be fixed soon, as I couldn't find any bug in my sources ... TODO: - implement Michael's mono and frequency divide options - buffered output - optional direct 14 Bit output without using AHI - improve documentation - faster decoding - better configure.in and more ...