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[Show comments] [Show snapshots] [Show videos] [Show content] [Replace file] Source code for MP3 player ARAMP. Original Readme --------------- Introduction ------------ WarpAMP is an MPEG audio player based on Tomislav Uzelac's amp decoding engine. It is based on Tomislav Uzelac's AMP. It supports AHI, but it also has a special mode where it directly accesses a Prelude Soundboard using the prelude.library, if present. As Default it uses AHI (AHI V4 required). The prelude.library Audio-Code is based on Thomas Wenzel's PreludeAMP for ppc.library (i got his permission to use this Replay source on a email-request by myselves to him, he uploaded the Source recently on Aminet). The AHI Code was done by Thorsten Hansen of KATO, thanks for his help with AHI :) Version 0.8 fixes some small bugs. Version 0.9 changes some small things to make it work okay with OpusMPEGA Features -------- - FREEWARE! - Compiled with StormC PPC - Does not need ixemul.library! - Does not need the AHI audio system, but supports it - Does not stop the music, when Intuition is locked, if -quiet mode is used Requirements ------------ - AHI or prelude.library v2 (V2.41 recommended) - A PowerUP compatible system with WarpOS installed (should also work with V7, though not tested... might give slowdown in V7...) Usage ----- WarpAMP infile If you call it without parameter, a Filerequester will be invoked. MultiSelect is possible. It is also possible to use a program file by WarpAMP -program or WarpAMP -program prgfile The first version uses a Filerequester, the second not. The programfile format looks like: work:mpg/mympg1.mp3 work:mpg/mympg2.mp3 repeat This file plays the two MPEG files (one line, one file) and then repeats. Until CTRL-C is pressed. If you do not specify repeat at the end, it does not repeat. Program files have filenames with .prg at the end. By default WarpAMP - uses a PPC BAT register. - disables the Caches for the Sound-Memory-Buffer If you do not like this, use the option -nobat -prelude uses the prelude.library Replaycode, if you do not specify this, AHI is used. -quiet makes WarpAMP not to print out any output. This has the effect, that WarpAMP will not stop when you do Intuition-Operations. I know, handling it in a new task would be the cleaner implementation, but this was more easy to do. :) History ------- v0.5 - First version, based on PreludeAMP with some modifications v0.6 - Added AHI Support v0.7 - Added -quiet mode Legal stuff ----------- WarpAMP ------- I don't claim a specific copyright on it. It is just freeware. You are obliged to confirm to the copyright notices of PreludeAMP and AMP, though. I am in no way responsible, if this program should damage your computer (but it should not, just a standard disclaimer) or anything else. PreludeAMP of Thomas Wenzel Copyright Notice -------------------------------------------- PreludeAMP is copyrighted freeware. It may be distributed freely as long as no modifications are made to the executable and this document. A nominal fee may be asked to cover distribution costs. PreludeAMP may not be used for any commercial purposes or included with any commercial product without the written permission of the author. It may NOT be stored on ftp servers or websites that also hold commercial software products or drivers for commercial hardware. The only exception are servers of the Aminet archive. No responsibilities are taken for damaged speakers, amplifiers, Amigas or any other components or data involved while using PreludeAMP. Although I've done some beta testing I can't guarantee that PreludeAMP will not crash! If you find any bugs, let me know. ----- Note, that i (Steffen Haeuser) have the email-permission to use his sources and modify them in a way to create an MPEG Player of my own, as long as i conform to the AMP license. Here's the original amp.readme: ------------------------------- amp MPEG audio decoder readme file (version 0.7.5) (C) Tomislav Uzelac 1996,1997 amp is free software and can be _used_ freely by anyone. If you want to do anything else with it, be sure to check the Legal section of this document for legal issues. THERE IS NO WARRANTY FOR THIS PROGRAM. Please check out the Legal section of this document. 1. Introduction 2. Installation 3. Running 4. Feedback 5. Contributing 6. Legal 1. Introduction amp (Audio Mpeg Player) is an MPEG audio decoder which I originally started putting together as a side project of the MPEG hardware design project at FER/Zagreb - just to confirm my knowledge of the standard. It works with both MPEG1 and MPEG2 audio streams (except for the multichannel extensions defined in MPEG2), layers 2 and 3. There is a gui for amp, written in Tcl/Tk by Edouard Lafargue. It is available at the amp home site ftp://ftp.rasip.fer.hr Another gui supported is the Sajber Jukebox, written by Joel Lindholm. The following people contributed their time and knowledge to amp: Karl Anders Oygard, Ilkka Karvinen, Lutz Vieweg, Dan Nelson, Edouard Lafargue, Andrew Richards, George Colouris, Dmitry Boldyrev, Andy Lo A Foe, Thomas Sailer, Justin Frankel amp home location is ftp://ftp.rasip.fer.hr/pub/mpeg/ and the mailing list: send 'HELP' in the body of the message to: multimedia()rasip.fer.hr If you want to find out more about MPEG, best places to start are http://www.mpeg.org http://www.mpeg2.de 2. Installation Installation should be simple enough if amp was ported to your system, just do a ./configure make You can edit the makefile further to suit your system. If configure fails to make a usable Makefile, you'll _have_ to edit it yourself. Linux users should try real-time playing support, as described in doc/realtime.txt. Some people that might pass on this feature are those with slower machines (i.e. 486's), or SMP systems (see the doc/linuxrealtime.txt file). Some versions of the linux C library produce an error when compiling amp with realtime support. A quick fix is to edit /usr/include/sched.h and replace _P in the offending line with __P. ./configure --enable-realtime make chown root.root amp chmod u+s amp ... this requires /dev/dsp to be both world readable and writeable. If you have a special group for people allowed to use the sound device (for instance, a group called sound), you can do a: chmod g+s amp or make your audio card world read/writeable (not recomended) chmod o+rw /dev/dsp* 3. Running: 'amp -h' gives you usage & options. If your computer is on the slower side, direct playback might not work, but you can decode it to .wav or raw pcm and play it later. 4. Feedback Send in your makefiles, opinions, bugreports, fixes; anything related to this program. You can also send me unlimited amounts of money, sugar, milk, etc. If you find any mpeg audio files that amp has trouble decoding, please tell me about this via e-mail <tuzelac()rasip.fer.hr>. 5. Contributing Please contribute to amp. If you want to know what is going on in amp development, you can join the developers mailing list mpeg_audio_developers()rasip.fer.hr There are certain debugging facilities that I made in amp, but are disabled in the current release (they are neither nice nor user-friendly). If anyone enhances them (they are in dump.c) to the point that they're actually usable I'll be happy to include the changes in the release. I think this kind of debug output would be very useful to people studying these audio algorithms. 6. Legal This software can be used freely for any purpose. It can be distributed freely, as long as it is not sold commercially without permission from Tomislav Uzelac <tuzelac()rasip.fer.hr>. However, including this software on CD_ROMs containing other free software is explicitly permitted even when a modest distribution fee is charged for the CD, as long as this software is not a primary selling argument for the CD. Building derived versions of this software is permitted, as long as they are not sold commercially without permission from Tomislav Uzelac <tuzelac()rasip.fer.hr>. Any derived versions must be clearly marked as such, and must be called by a name other than amp. Any derived versions must retain this copyright notice. /* This license is itself copied from Tatu Ylonen's ssh package. It does * not mention being copyrighted itself :) */ THERE IS NO WARRANTY FOR THIS PROGRAM - whatsoever. You use it entirely at your risk, and neither Tomislav Uzelac, nor FER will be liable for any damages that might occur to your computer, software, etc. in consequence of you using this freeware program. Tomislav Uzelac <tuzelac()rasip.fer.hr>
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