PyTone-users Mai 2005

pytone-users@luga.de

7 Teilnehmer
20 Diskussionen

[sebastian.roeder@uni-bielefeld.de: Pytone UTF8 support and ebuild for Gentoo?]
by Joerg Lehmann 26 Jul '05

26 Jul '05

Hi, here is a request of a PyTone user for Gentoo ebuilds. Maybe somebody of you is interested. Jörg PS: Concerning the UTF8 Sebastian is asking for, I already answered that the problem are the Python ncurses bindings, which do not support Unicode at the moment. ----- Forwarded message from Sebastian Roeder <sebastian.roeder(a)uni-bielefeld.de> ----- Date: Sun, 22 May 2005 21:57:36 +0200 From: Sebastian Roeder <sebastian.roeder(a)uni-bielefeld.de> Subject: Pytone UTF8 support and ebuild for Gentoo? To: joerg(a)luga.de User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) Hi, I searched freshmeat for a cli Musicplayer and found PyTone - which is very promissing and might fit all my needs. Now I have two questions: 1. Is UTF8 fully supported in PyTone? I guess it should since ncurces is UTF8 aware, but I'm not shure whether there might be problems with filenames and/or ID3 tags in UTF8. 2. Might there be a chance to get an ebuild for Gentoo Linux? Maybe there is a Gentoo user on the ML how can write one? Could you redirect this question to the ML since I didn't want to sign on another ML? Thanks and keep on the good work. Regards, Sebastian (Ahhh, You can answer in German of cause, realized to late that you might be native German) ----- End forwarded message -----

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Pytone 2.2.3 plays only with debugfile = on!
by Stefan Wimmer 20 Jul '05

20 Jul '05

Hi all, the title says it all :) I downloaded the new Pytone-2.2.3 and installed it on 2 machines (PC & laptop both running Gentoo) and it works like a charm on the notebook but *not* on the PC :( On the PC it refuses to play any music listed in the playlist even if I use Alt+Enter on a highlighted item ... except I use '-d ~/.pytone/pytone.debug'!!! Then it starts to play the music without any problem :) Another problem is that I am not sure if it makes sense that I attach a debug-file because then it works :) I attach my pytonerc anyway ... Any other idea what is going wrong? Greetz Stefan

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Pytone Script and Plugin Archiv
by Alexander Wirt 20 Jun '05

20 Jun '05

Hi folks, I have plans for a pytone-plugins package for debian, to do that properly I want to setup a website where everybody is able download and to provide own plugins. To get a start I ask you to send me your plugins or scripts you have written for pytone. Later the archiv will be a darcs repo and everybody should be able to send me the stuff via darcs --send :). But at first I want to have some scripts for the initial archiv. So, if you have written something for pytone and you think it could be usefull to others, please send me. Best wishes Alex -- Alexander "formorer" Wirt KeyID: BC7D020A EMail: formorer(a)formorer.de ICQ: 28651245

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Introducing DanceBox. A semi-fork of pyTone
by Richard Smith 31 Mai '05

31 Mai '05

pyToners, I've forked a copy of pyTone that I'm calling DanceBox. You can get a tarball of my work so far at sourceforge. No web page or mailing list exist so go to the dancebox project. http://sourceforge.net/projects/dancebox/ I'm using darcs as my vcs. The tarball contains the repository. You can pull directly from my local public repository @ http://tant.com/~dancebox/dancebox-devel I haven't made any kind of public announcement and probably won't until I get much further along but I thought I'd mention something here so I can get some pre-alpha feedback. What: DanceBox is a customized version of pyTone for a Dance Studio. Specifically for a dance studio that does partner dancing. Things like Cha Cha, Hustle, Swing, Waltz etc. Modifications from mainline pyTone: - I added a SQLite database backend. Currently it supports _most_ of what pyTone did originally. Implementing that was how I started learning how pyTone worked. I say most of pyTone functionality because once I got where the curses interface would play a song I stopped trying to implement the remaining pyTone functionality. The primary reason for adding SQLite is supporting my song classification system. For my purposes the "song can only be 1 genre" is way to limiting. In the partner dance world a single song may be good for several different dances. So I have a full relational setup that allows a song to be categorized by class, genre, dance, speed, and style. The only limit on how many of those classifications any single song can belong to is the number of records in a a SQLite table. So for all practical purposes unlimited. I feel that what I have set up is probably the most flexible classification system of _any_ open source jukebox and should rival commercial offerings. - Added support for speeding up and slowing down the currently played song with the internal player. By adding code and events that change the output sample rate of pcm.rate_convert it is possible to speed up and slow down the song. Yes it changes the pitch as well but in partner dance we aren't concerned about that. Slow it down for practice/learning and then gradually speed it up back normal. - Moved all the user interface(s) stuff into its own subdirectory of a directory called 'ui' and created packages for them. You can now create multiple user interfaces. - Added a (fledgling) Qt interface with pyQt. My goal for DanceBox is to have it operated from a single window using a touchscreen. So I'm working on a ui that's simple and easy to use from a touchscreen. I've only just started so its very incomplete. But it does load and display some items queried from the database. No player functions yet. Goals and Directions: The focus for pyTone and DanceBox are very different. The object store model used with the berkley db doesn't map well into the relational SQL world in some cases. I store all the info rather then the entire object. Which means I have to re-create a song object every time. So to support that I had to create a new song_lite class that did not go read all the meta-info of a song when instantiated. pyTone wants to parse a collection of files and display all the ID3 info in an organized manner. DanceBox doesn't care about the id3 info. The artist, title, album, year, etc are all secondary, what matters most are what dance is it and how fast is it. Speed in this setup is fuzzy. Slow, medium, fast, etc. The database has fields for BPM and MPM (Measures per minute) but a single BPM may be fast in one dance and slow in another so you can't really catagorize on BPM. Bringing up full pyTone compatibility is left as an exercise to the pyTone community. I'll be glad to help however I can but I won't ever really complete that on my own since it doesn't match up with how DanceBox works. That said all of pyTone's functionality should be able to be implemented with the database I setup. So if someone wanted to re-tool pyTone into using SQLite this should be a great start. I saw in the archives that moving to SQLite was suggested but met some resistance due to the additional dependencies that would add. I have plans of going cross platform as well. Windows and Max OS X are targets. I know of studios in my local area using these platforms. pyAo and apsw (the SQLite wrapper) already do both of these platforms and building pcm.rate_convert should not be much of a problem. I haven't looked yet at mad and the other dependencies I called it a semi-fork because I'd like to stay compatible with pyTone such that both projects can use advancements from each other with minimum hassle. I just don't know if that will be possible given the very different operational methods. The astute hacker will also notice a difference in coding styles. I strongly dislike the alllowercasefunctions naming scheme. Being a native english speaker I find this very hard to read. I do realize that you german and dutch speaking folks are used to that and that even python itself uses that style. My code uses a mixture of underscore names (get_the_data) and Qt style StudlyCaps (getTheData) I started coding using the _ names but once I got into the PyQt stuff for the gui I started matching Qt's style. In my database code its underscores and the ui code its Qt. I'll probably continue to do that. Since I don't really care as long as its readable and to me longfuncitonnames are not readable. If you do pull down the code to play with you will need pyQt and apsw as additional dependencies. At some point I may move from apsw to Qt's database wrapper to keep it only dependent on pyQt and also leverage Qt's ability to access several different SQL databases but apsw is very easy to use. One drawback of apsw (from SQLite actually) is that all operations to the database must be called from the same thread the cursor was created from. Apsw complained about that early on. So right now I workaound by grabbing an new cursor every time a query is made and releasing it when I'm done. For SQLite this is very fast. But doing this with say Qt and MySQL would probably be quite a bit slower so I need to serialize the access all from one thread. I'll cross those bridges later on as I reach them. Moving to Qt database wrappers may take care of this for me. To use dancebox you start with dancebox.py rather than pytone.py. Running pytone.py will load up the curses interface. But remember a large amount of pyTone functionality is _not_ implemented. In either case DanceBox or the original pyTone will try to look for 'dancebox.conf' rather than 'pytonerc' in the normal places. I have not modified the config.py yet to recognize that it was started as pyTone vs DanceBox. I've included my sample dancebox.conf in the ./conf directory Thanks in advance for your time and comments -- Richard A. Smith

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PyTone plugins
by Horst Eyermann 31 Mai '05

31 Mai '05

Hello, I want to use PyTone in a home-entertainment environment, as I is the best platform I found so far. With a few things missing: a) LCD-output b) (consumer) infrared receiver (lirc) c) integration into freevo For the home entertainment a & b are fairly important, and I found drivers for both in python, the question is has anyone done similar plugins, or ideas for the best approach for integration. my questions are: a: the LCD does not have ncruses interface, so I would have to do bits of the layout myself, where do I start best b: The lirc interface does not wait for events, but sends them how would I do that c: Freevo is a multimedia platform, which I think could do with a real musicbox plugin like pytone. Has anyone thought of integration? Horst -- Horst Eyermann <horst(a)freedict.de>

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Not cacheing database queries
by Richard Smith 31 Mai '05

31 Mai '05

Is there a way to issue database requests such that they aren't cached? My song list queries have several filters on them and building a unique __str__ for each query involves going through all the filters and producing what will be a really long string. Seems better just to make that query not cached. -- Richard A. Smith

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pytone shn and flac support
by Dag Wieers 30 Mai '05

30 Mai '05

Hi, Playing around with bittorrent on (legal!) bittorrent sites, I noticed most of the bittorrents offer SHN and FLAC files. It would be nice if pytone could support those too. Any plans ? I found a python-flac module, but no python-shn module yet. -- dag wieers, dag(a)wieers.com, http://dag.wieers.com/ -- [all I want is a warm bed and a kind word and unlimited power]

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Some more user comments :)
by Dag Wieers 29 Mai '05

29 Mai '05

Hey, Another set of comments: + The interface feels a bit sluggish and I think that is because if you 'tab' between the 2 windows there is a visible refresh. I've been looking to get rid of it one way or the other but I struggle with ncurses. + One of my databases is /media/cdrom, even though pytone doesn't really take care of removable media, it works well. The only problem is that when it jumps to a new song and the new song happens to be on CD/DVD, the cross-fading stops (and the playback stops) until the CD/DVD has spun up. Usually a 1 or 2 second freeze :( + It would be nice if there was a global search facility. Something that is not context sensitive (like the 'j' option in xmms). A popup with all the results as you type. + Regarding the open()/close() versus seek()/truncate(), strace clearly shows that open()/close() costs more than seek()/truncate() (I'm not sure if the results is system dependent). But the win is just a small part of the overall of pytone. + It would be nice if someone more experienced with 'strace -f -c -p <pid of pytone>' during playback can comment on the immense ammount of futex time spend. I see 11 threads by default for 1 playback, most of the threads spend time in futex. I wonder why there need to be 11 threads ? PS strace -f seems to be the problem, but you can strace individual threads to see where they spend the most time during playback. Any help in understanding this is welcome :) PS2 But you can do strace -c -p <pid thread1> -p <pid thread2> ... to get a total picture.. -- dag wieers, dag(a)wieers.com, http://dag.wieers.com/ -- [all I want is a warm bed and a kind word and unlimited power]

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pytone user comments
by Dag Wieers 29 Mai '05

29 Mai '05

Hi, I've got a few comments/requests as a user :) 1. Is there some way to have the 'cursor' move with the current playing track ? (ie when it changes song, look if the cursor was highlighting the previous song and move it to the next song) This way the info-window displays the current song at all times, if once selected. 2. Can I support multiple music directories and/or temporary music directories (like USB storage or CD/DVDs) ? What I would like is to be able to specify multiple locations and have pytone manage each of these. And when a location suddenly gets unmounted/remounted, have it act upon that. 3. I noticed that when starting pytone it starts to eagerly rescan all the files in such a way that my system cannot keep up with it and it influences the interactivity with the ncurses interface (seems not to respond) and playback is being interrupted several times because of this. (I already increased the buffer because of this and that helped, still...) 4. ctrl-enter does not seem to work as advertized, it behaves exactly like Enter. I have to first add a song and then press 'n' if I want to play a song of my own choice immediately. Thanks for listening :) -- dag wieers, dag(a)wieers.com, http://dag.wieers.com/ -- [all I want is a warm bed and a kind word and unlimited power]

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Pytone db corruption ?
by Dag Wieers 28 Mai '05

28 Mai '05

Hi, I have a strange case of corruption. [dag@emyn ~]$ pytone Traceback (most recent call last): File "/usr/lib/python2.3/site-packages/pytone/pytone.py", line 115, in ? songdbid = songdbmanager.addsongdb(songdbname, config.database[songdbname]) File "/usr/lib/python2.3/site-packages/pytone/services/songdb.py", line 148, in addsongdb songdb = songdbs.local.songdb(id, config, self.songdbhub) File "/usr/lib/python2.3/site-packages/pytone/services/songdbs/local.py", line 156, in __init__ self.dbenv = dbenv(config.dbenvdir, config.cachesize) File "/usr/lib/python2.3/site-packages/pytone/services/songdbs/local.py", line 74, in __init__ bsddb.db.DB_CREATE | bsddb._db.DBRunRecoveryError: (-30978, 'DB_RUNRECOVERY: Fatal error, run database recovery -- /home/dag/.pytone/cdrom.db: unable to flush page: 85') This happened after I switched from ogg DVD and did an update of the directory. Since pytone stalled (probably while scanning the new media and maybe indexing) I exited pytone and restarted. Maybe pytone allows you to exit the application while doing updates to the db and that corrupts these files ? Also, if I change media I assume pytone wille throw away everything I collected about the old media ? Are there plans to support removable media (or even support a complete index of soundfiles, so that the same file with the same metadata will have the same pytone info attached to it, regardless of the media/location). -- dag wieers, dag(a)wieers.com, http://dag.wieers.com/ -- [all I want is a warm bed and a kind word and unlimited power]

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PyTone-users Mai 2005