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Re: looking forward to Emms 6.0
From: |
Yoni Rabkin |
Subject: |
Re: looking forward to Emms 6.0 |
Date: |
Sat, 02 May 2020 23:08:43 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.91 (gnu/linux) |
"Fran Burstall (Gmail)" <address@hidden> writes:
> python-mutagen looks like a possibility but it gives different output
> for different filetypes. This is what it looks like on a .ogg file
>
> -- /home/timeshift/snapshots/2018-08-31_16-56-03/localhost/usr/share/
> cinnamon/sounds/bell.ogg
> - Ogg Vorbis, 0.23 seconds, 96000 bps (audio/vorbis)
> TITLE=bell
> COMMENTS=
> I do not have any other filetypes to experiment on (flac?...) but we
> would have to at least internally manage ID3 frame names vs vobis
> comments etc
Indeed, an ogg file looks like:
- Ogg Vorbis, 184.40 seconds, 112000 bps (audio/vorbis)
TITLE=Messiah: Part I, no. 1: Sinfonia
ARTIST=George Frideric Handel
TRACKNUMBER=1
TRACKTOTAL=21
ALBUM=CD1
COMPOSER=George Frideric Handel
MUSICBRAINZ_ALBUMID=404f83ab-c0e5-48d9-a1e5-60e41f16882b
ALBUMARTIST=George Frideric Handel; Academy of Ancient Music, Choir of New
College Oxford, Edward Higginbottom
MUSICBRAINZ_ARTISTID=27870d47-bb98-42d1-bf2b-c7e972e6befc
MUSICBRAINZ_TRACKID=f1d339ef-ec0a-4f35-b087-0fd5fd588341
ARTISTSORT=Handel, George Frideric
DATE=2006-10-02
DISCNUMBER=1
DISCID=20103815
MUSICBRAINZ_DISCID=RQtY8w9xCa7gnc3Hifc2WAS1vkA-
...and flac:
- FLAC, 216.48 seconds, 44100 Hz (audio/x-flac)
ARTIST=Anne-Sophie Mutter [Violin] & Trondheim Soloists [Ensemble] &
Anne-Sophie Mutter [Director]
TITLE=1. (Allegro moderato)
ALBUM=In tempus praesens - Bach, J.S.: Violin Concertos BWV1041 & BWV1042;
Gubaidulina: Violin Concerto In tempus praesens
TRACKNUMBER=1
... so mutagen doesn't do any mapping, but outputs the fields as-is, and
we would need to map the different fields from the different formats to
our own internal representation.
> ---Fran
>
> On Sat, 2 May 2020 at 04:41, Yoni Rabkin <address@hidden> wrote:
>
> "Fran Burstall (Gmail)" <address@hidden> writes:
>
> > pyprinttags fails to provide playing-time which
> emms-print-metadata
> > does get by querying TagLib::AudioProperties.
> >
> > Is this a show-stopper?
>
> I've just had a look at python-mutagen, which installs
> mutagen-inspect. It's output on my machine looks like this
> (ignoring the
> non-standard PRIV tag):
>
> -- /home/yrk/audio/classical/Verdi__La_Traviata__Netrebko/01 -
> Prelude - Prelude.mp3
> - MPEG 1 layer 3, 256000 bps (CBR?), 44100 Hz, 2 chn, 216.93
> seconds (audio/mp3)
> APIC= (image/jpeg, 205990 bytes)
> COMM==eng=Amazon.com Song ID: 204947184
> TALB=Verdi: La Traviata
> TCOM=Giuseppe Verdi
> TCON=Classical
> TCOP=(C) 2005 Deutsche Grammophon GmbH, Hamburg
> TDRC=2005
> TIT2=Prelude - Prelude
> TPE1=Wiener Philharmoniker
> TPE2=Anna Netrebko
> TPE3=Carlo Rizzi
> TPOS=1/2
> TRCK=1/22
>
> Do you see mutagen-inspect from python-mutagen as a candidate?
>
> > >
> >
>
> *************************************************************************
> > > TAGS OF '02. Peter Gunn (live) _ Where's Your Head At
> > > (Head-a-Pella).mp3'
> > >
> >
>
> *************************************************************************
> > > ALBUM = As Heard on Radio
> > Soulwax,
> > > Part 2
> > > ALBUM ARTIST CREDIT = 2 Many DJ’s
> > > ALBUMARTIST = 2 Many DJ’s
> > > ALBUMARTISTSORT = 2 Many DJ’s
> > > ARTIST = Emerson, Lake &
> Palmer
> > /
> > > Basement Jaxx
> > > ARTIST CREDIT = Emerson, Lake &
> Palmer
> > /
> >
> > [snip]
> >
> > I got something like this:
> >
> > ************************************
> > TAGS OF '01 - Prelude - Prelude.mp3'
> > ************************************
> > ALBUM = Verdi: La Traviata
> > COMMENT = Amazon.com Song ID: 204947184
> > COPYRIGHT = (C) 2005 Deutsche Grammophon GmbH, Hamburg
> > CONDUCTOR = Carlo Rizzi
> > ARTIST = Wiener Philharmoniker
> > TITLE = Prelude - Prelude
> > GENRE = Classical
> > ALBUMARTIST = Anna Netrebko
> > COMPOSER = Giuseppe Verdi
> > DATE = 2005
> > TRACKNUMBER = 1/22
> > DISCNUMBER = 1/2
> > Unsupported tag elements: PRIV; APIC
> >
> > ...which looks easy enough to parse.
> >
> > Unfortunately, installing pytaglib on my Trisquel machine
> was as
> > much
> > work as emms-print-metadata. It involved manually
> downloading
> > pytaglib-0.3.4, then installing cython, then:
> >
> > $ python setup.py build
> > $ python setup.py install --user
> >
> > But I assume that it is easier on systems with pip, so this
> isn't
> > a
> > show-stopper. Moreover, it shows that this can run on a
> > completely free
> > system. If it couldn't then that would be another
> show-stopper.
> >
> > As an aside: looking at the command line of pyprinttags I
> note
> > that
> > we'll have to add the "-b" (batch) option so that
> pyprinttags
> > doesn't
> > try to ask the user questions and hang the elisp process
> call.
> >
> > > Clearly a little parsing would be necessary to get this
> into a
> > shape
> > > that emms could work with.
> > >
> > > I see two ways to go with this:
> > >
> > > 1. write emms-info-pytaglib.el which does the parsing.
> > >
> > > 2. write a python version of emms-print-metadata that is
> a
> > drop-in
> > > replacement for the C version.
> > >
> > > Both are easy though option 2 is probably easier. The
> downside
> > of
> > > option 2 is that we still have a piece of non-elisp to
> install
> > in the
> > > user's path.
> > >
> > > Preferences?
> >
> > Absolutely option 1, since otherwise we would be shipping
> C, C++,
> > Perl,
> > and Python; no thank you. The idea is to let the OS provide
> the
> > packages, and let elisp do the rest. This is as opposed to
> what
> > we do
> > now, which is: let the OS provide a package, provide some
> glue
> > code, and
> > then let elisp do the rest. We are trying to get rid of the
> glue.
> >
> > I can write an implementation of emms-info-pytaglib and
> ping you
> > to test
> > it once I'm done, or you can do that. It really depends on
> > whether you
> > feel like writing that would be fun for you; your choice.
> Thank
> > you
> > nevertheless.
> >
> > --
> > "Cut your own wood and it will warm you twice"
> >
> >
> >
>
> --
> "Cut your own wood and it will warm you twice"
>
>
>
--
"Cut your own wood and it will warm you twice"
- Re: looking forward to Emms 6.0, (continued)
- Re: looking forward to Emms 6.0, Fran Burstall (Gmail), 2020/05/01
- Re: looking forward to Emms 6.0, Fran Burstall (Gmail), 2020/05/01
- Re: looking forward to Emms 6.0, Yoni Rabkin, 2020/05/01
- Re: looking forward to Emms 6.0, Yoni Rabkin, 2020/05/01
- Re: looking forward to Emms 6.0, Fran Burstall (Gmail), 2020/05/02
- Re: looking forward to Emms 6.0, Fran Burstall (Gmail), 2020/05/02
- Re: looking forward to Emms 6.0, Yoni Rabkin, 2020/05/02
- Re: looking forward to Emms 6.0, Fran Burstall (Gmail), 2020/05/03
- Message not available
- Message not available
- Re: looking forward to Emms 6.0, Fran Burstall (Gmail), 2020/05/08
- Re: looking forward to Emms 6.0, Yoni Rabkin, 2020/05/08
- Re: looking forward to Emms 6.0,
Yoni Rabkin <=
Re: looking forward to Emms 6.0, Pierre Neidhardt, 2020/05/01