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NEWS.md

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codplayer releases

2.1 ????-??-??

New features

  • codplayerd can now play mp3 radio streams too. The streams are configured in codplayer.conf, see the example there. Play streams by running codctl radio [STATIONID/NUMBER].

Breaking changes

  • Additional libraries must be installed before updating: apt-get install libmad0 libmad0-dev

  • codrestd now control players directly over ZeroMQ, instead of embedding the Node.js control web widget. As a result of this the format for specifying the list of players in codrest.conf has changed. The example config file shows the new format.

  • The additional dependencies for codrestd must be installed specifically, which probably won't happen during a regular update. See for more details.

Other fixes

  • New command: ejected. This is used by the on_cd_eject.sh script to avoid codplayerd trying to eject an already ejected disc.

  • Update codlcd dependencies to handle Linux v4 kernels. You may have to update some packages for this to work:

    ~/cod/bin/pip install -U Adafruit-GPIO Adafruit-CharLCD

    You may also have to install this patched version of RPIO: https://github.com/petli/RPIO/tree/v0.10.1-petli

2.0 2016-04-09

Some significant and breaking changes merits bumping the major version number. For this release the web control widget was moved to a separate repository to let it have its own version numbering.

Breaking changes

To support the additional daemons (see below) and simplifying the code in general, codplayer is now fully dependent on ZeroMQ for all intra-component communication. This led to changes in the configuration file structure to make configuration of the all-important ZeroMQ endpoints easy.

The old state publishing and command factory classes used in codplayer.conf has been removed. In its place are ZeroMQ channel definitions in codmq.conf.

codctl now reads codmq.conf, instead of codplayer.conf.

codplayer.conf has changed format, removing the state and command factory lists and instead just having a new parameter referencing the codmq.conf file.

The old FIFO command interface and the state files have been removed, on the assumption that the ZeroMQ interface is much more useful. If these old interfaces are needed, they could be reimplemented as components using the the ZeroMQ API.

codrestd is now a daemon and behaves in the same way as all the other codplayer daemons. Thus codrest.conf have additional required configuration properties: pid_file and log_file.

Hardware support

An IO control board, connected to a Raspberry Pi GPIO port, is now supported (and described in the doc directory). This board has two corresponding daemons:

  • codlircd: read remote control events from lircd and send keypress ZeroMQ events

  • codlcd: Display player status on an LCD and status LED

Daemon plugins

The various daemons can have plugins, listed in the config files.

This release adds one such plugin for codplayerd:

  • codplayer.remotecontrol.RemoteControl: consumes keypress events and translates them into commands.

Other fixes

  • All daemons support new config parameter initgroups. If set to True and the daemons are started with root and then drops privileges, they will acquire all the groups the daemon user belongs to, and not just the one specified in the config.

  • codctl: new flag -q/--quiet to suppress output from action commands.

  • #37: handle multiple error alerts in the database admin web UI.

  • Eject discs in background process to avoid hanging the IO loop while the hardware spits out the disc.

1.1 2015-03-08

New features

Discs can be linked as an alias for another disc. An example usecase is to play a remastered CD when inserting the original release.

If a linked disc is played, the source disc ID is available in the state.State.source_disc_id parameter.

Other fixes

  • #31: data file was stored as an absolute path.

  • #32: error handling broken when disc can't be read.

  • #33: highlighting broken when discs have skipped tracks.

1.0 2014-09-16

The ripping process has been completely refactored. The old process used cdrdao to rip both audio and the full TOC in a single pass. This had a bunch of problems:

  • cdrdao isn't as good as cdparanoia to handle damaged discs, resulting in some skips and crackles on those

  • the error-correcting code in cdrdao introduces a lot of errors in the subchannel reading that the TOC depends on, so pregaps and indices on tracks are generally way off

  • it just gets confused by discs with hidden tracks before the first proper track

This refactoring solves this, by splitting the ripping process into two phases: first get the audio with cdparanoia, then an undisturbed TOC with cdrdao.

All discs in a pre-1.0 database will be reripped with the new process after deploying codplayer 1.0, but the change is backward compatible to retain any disc information and edits previously added. The result is thus that discs are reripped to a higher quality, without having to restart with a blank database.

Incompatible changes

Changes requiring action from the user:

  • The configuration in codplayer.conf have new mandatory parameters: cdparanoia_command and FilePublisherFactory(rip_state_path = ...)

  • cdparanoia must be installed on the system

Good to know:

  • Discs ripped with the old method that never had any information added in the admin GUI (i.e. only had a .toc, not a .cod) are no longer visible in the admin GUI. They will re-appear when reripped with the new process.

Changes affecting codplayer clients:

  • Ripping state is no longer part of state.State, but handled in a separate state.RipState object instead. The ZeroMQ state updater emits rip_state messages with these objects.

  • Track.number may now be 0, indicating a "hidden" track before the nominal first track.

Other fixes

General:

  • All scripts now have a --version option
  • The player command version returns the currently running daemon verson

Database admin GUI:

  • User documentation
  • Don't overwrite any existing track settings when fetching disc information from Musicbrainz
  • More efficient sorting speeds up page load

Web control widget:

  • Timeout of 30 seconds after the last client disconnects before stopping the state subscriptions

codplayerd:

  • Limit rip spead with new (optional) config parameter cdrom_read_speed

  • Fix #30: handle errors on pause/resume in c_alsa_sink correctly

0.9.1 2014-07-14

  • Fixes #28: crashed on errors before playing any packet at all, e.g. on missing USB audio device.

0.9 2014-07-13

First fully packaged release.