[L2Ork-dev] Purr Data and MP3 Objects

[Jonathan Wilkes]

On Wed, Sep 16, 2020 at 4:49 PM Linux ROUEN Normandie
<linux.rouen at free.fr> wrote:
>
> Thanks Jonathan,
> But that means it's not usable by a standard project user.

What means that?

> You have to
> put your hands under the hood and then into the dirty engine.
> I just checked [mp3play~] with 'iemlib' r.1.17 properly installed and
> declared under Pd Vanilla v.0.50.2 and it's the same bad behavior than
> under Purr Data v.2.13.0. Even more, here 'mp3play~-help.pd' is not
> present at all.

Do you know where the source code is for the version of mp3play~
available through Vanilla?

-Jonathan

> -Joseph
> - - - - - - - - - - - - - - - - - - - -
> Le 16/09/2020 à 21:13, Jonathan Wilkes a écrit :
> > On Wed, Sep 16, 2020 at 2:37 PM Linux ROUEN Normandie
> > <linux.rouen at free.fr> wrote:
> >> Hello Folks,
> >>
> >> I'm looking for some advises regarding Recording and Playing MP3 files -directly- inside Purr Data v2.13.0+ under GNU/Linux and Windows.
> >>
> >> In my MIDI/Audio projects under Purr Data I'm already using successfully:
> >> - [oggwrite~] / [oggread~] for .ogg (Vorbis) files (with lossy audio compression), and
> >> - [writesf~] / [readsf~] for  .wav, .aif, .au and .snd files (with uncompressed linear pulse-code modulation).
> >>
> >> But some users are requesting, among other demands, the possibility to handle also MP3 (with lossy data-compression) for extending the number of compatible Audio equipment (like TVs) able to read them.
> >>
> >> After analysis I found only 2 objects -not tested yet- from the 'unauthorized' library being able to deal with MP3:
> >> - [mp3write~] an MP3 file recorder v.0.4, and
> >> - [mp3cast~] an MP3 streamer v.0.5.
> >> But there is nothing about an MP3 file reader/player.
> >>
> >> Despite the many libraries installed by default, Purr Data could not create any of the following objects (see towards the end of the link - FR):
> >> - [mp3amp~],
> >> - [graphic-mp3amp~],
> >> - [mp3live~],
> >> - [mp3streamout~],
> >> - [mp3streamin~],
> >> - [mp3fileout~], and
> >> - [mp3play~] from 'iemlib library'.
> >>
> >> * [mp3play~] should be in the 'iemlib' library but it's not there when its help file is well present in '/opt/purr-data/lib/pd-l2ork/extra/iemlib/mp3play~-help.pd'.
> >> One strange thing is that the 'mp3play~.c' file is well present on the Git copy I made from Jonathan's repo for my French translations in:
> >> - '/home/joe/GitLab/purr-data/externals/build/src/mp3play~.c' (47 bytes), and
> >> - '/home/joe/GitLab/purr-data/externals/iemlib/iem_mp3/src/' (107 kB).
> > mp3play~ is not currently getting built (and wasn't in Pd-extended, either).
> >
> > What a weirdo class structure! After compiling it, you must first create this:
> >
> > [iem_mp3]
> >
> > Which will then go in and trigger the setup routine for mp3play~, so
> > that you can then do this:
> >
> > [mp3play~]
> >
> > Both will create properly. I was able to play the test file and it
> > seemed to output something, though couldn't get my headphones to work
> > so I don't know if it sounded right.
> >
> > It appears there are no dependencies for this object, so if we add it
> > then it will work in the web app, too!
> >
> > I guess the first thing to do is look in Pd Vanilla and see if anyone
> > has done work on this object since 2003.
> >
> > -Jonathan
> >
> >> Any ideas - suggestions about an available and working [MP3 file reader/player] object?
> >> Thank you.
> >> - - - - - - - - - - - - - - - - - - - -
> >> Best,
> >> Joseph Gastelais
> >> LINUX ♥ ROUEN ♥ Normandie
> >> - - - - - - - - - - - - - - - - - - - -
> >> _______________________________________________
> >> L2Ork-dev mailing list
> >> L2Ork-dev at disis.music.vt.edu
> >> https://disis.music.vt.edu/listinfo/l2ork-dev
> > _______________________________________________
> > L2Ork-dev mailing list
> > L2Ork-dev at disis.music.vt.edu
> > https://disis.music.vt.edu/listinfo/l2ork-dev
>
> _______________________________________________
> L2Ork-dev mailing list
> L2Ork-dev at disis.music.vt.edu
> https://disis.music.vt.edu/listinfo/l2ork-dev