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rinco · Posted: Wed Feb 02, 2005 9:59 pm Post subject: libmp3 now in cvs

lib version of ps2mp3.
now in cvs.
top of readme:

What is it
~~~~
A wrapper around the libmad library that manages mp3 operations

What does it do
~~~~
You execute the PlayMP3 function with a filename and a callback.

The callback will be executed during the decoding of the mp3. Be sure
to return from this function quickly else the audio may stutter or freeze.

Saotome · Joined: 03 Apr 2004 Posts: 182

nice,
i already had a look on the example (it plays an mp3 file from host) and was wondering if you could easily modify it to play an mp3-file from a memory buffer (i.e. you load the whole mp3 file into ee memory and play if from there).
thanks
_________________
infj

rinco · Posted: Wed Feb 02, 2005 10:36 pm Post subject:

Playing from memory instead of a filesystem could be done...
But I'm not going to do it.
Although I will accept a patch.

mrbrown · Joined: 17 Jan 2004 Posts: 1536

Your request sounds nice
Open Source made me lazy
Send your patch or die
_________________
"He was warned..."

ooPo · Posted: Thu Feb 03, 2005 4:31 am Post subject:

Dark Lord Of the Sif,
May I call you mister brown?
You've gone haiku-coo.

mharris · Joined: 25 Jan 2004 Posts: 155 Location: Annapolis, MD, USA

radad · Posted: Thu Feb 03, 2005 8:32 am Post subject:

Good work. I was going to work on somehting like this. Haven't had the time though.

I haven't looked at the source yet but does your library handle mp3s with tags?

rinco · Posted: Thu Feb 03, 2005 8:45 am Post subject:

no id3 yet,
but i am working on this,
do not heed the sif

Raizor · Joined: 18 Jan 2004 Posts: 60 Location: out there

rinco, you rocko!

rinco · Posted: Sun Feb 06, 2005 11:41 pm Post subject: madplayer with id3v2

i'll clean it up some and put in cvs tomorrow... here is some teaser output:

loadelf: fname host:bin/madplay.elf secname all
Input ELF format filename = host:bin/madplay.elf
0 00100000 0004c194 .....
Loaded, host:bin/madplay.elf
start address 0x1000e0
gp address 00000000
MPEG Audio Decoder 0.15.2 (beta) - Copyright (C) 2000-2004 Robert Leslie et al.
loadmodule: fname rom0:LIBSD args 0 arg
loadmodule: id 33, ret 0
loadmodule: fname host:irx/sjpcm.irx args 0 arg
loadmodule: id 34, ret 0
open name host:contrib/4.mp3 flag 1 data 41378
output: sample frequency 44100 Hz not available; using 48000 Hz
output: resampling 44100 Hz to 48000 Hz
Title: Numb/Encore(Live)
Artist: Jay-Z And Linkin Park
Album: Collision Course(DVDA)
8018 frames decoded (5124095576013384:31:33.9), +1.1 dB peak amplitude, 6762 clipped samples

rinco · Posted: Tue Feb 08, 2005 12:28 am Post subject:

I have checked into CVS the files I added/changed to compile the latest
versions of libid3tag, libmad and madplay. The original sources can be
obtained from the libmad website.

If you look at the changes to libmad and libid3tag you will see there is
barely anything to it! For the madplay application I created an sjpcm
audio output module, which I hope to get added to the core of madplay.

I also hacked in my first attempt at a timer using a vsync interrupt
handler (thanks gslib!).

I should probably state that the libmp3 library does not currently bind
against this new and improved player.

Requires zlib (from ps2-packer) and isjcmp. No more libsample nonsense.

And my mp3 of choice for testing stereo?...