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* [ANN] dtas 0.12.0 - duct tape audio suite for *nix
@ 2015-12-14  4:03  5% Eric Wong
  0 siblings, 0 replies; 2+ results
From: Eric Wong @ 2015-12-14  4:03 UTC (permalink / raw)
  To: ruby-talk; +Cc: dtas-all

Free Software command-line tools for audio playback, mastering, and
whatever else related to audio.  dtas follows the worse-is-better
philosophy and acts as duct tape to combine existing command-line tools
for flexibility and ease-of-development.  dtas is currently implemented
in Ruby (and some embedded shell), but may use other languages in the
future.

Changes: dtas 0.12.0 - many player updates

Notable additions for dtas-player music listeners.

  dtas-ctl queue cat - display the internal queue
  dtas-tl shuffle [true|false] - toggle tracklist shuffle
  dtas-tl edit - open tracklist in an editor
                 see dtas-tl(1) manpage for more details on this:
                 http://dtas.80x24.org/dtas-tl.txt

The player tracklist now uses sequential track IDs instead of Ruby
object IDs, so it should be easier to use existing commands such as
"dtas-tl goto" and "dtas-tl remove"

For people using dtas-player for applying real-time effects to
splitfx YAML files, dtas-player can now watch for changes in scripts
specified in the "command" field of the splitfx YAML file.
Previously, dtas-player could only read the splitfx YAML file
itself.  This requires GNU/Linux and the sleepy_penguin RubyGem
installed.

dtas-splitfx also learned some switches to allow easier
interoperability with other processing tools:

  -p/--sox-pipe - identical to the sox(1) option

  -t/--trim - only expose part of the track, useful when
              combined with the above -p switch

See http://dtas.80x24.org/dtas-splitfx.txt for more details.

There's also some work-in-progress stuff that's not well documented
at the moment.  As with anything pre-1.0, expect the possibility
of incompatible changes.

Since I'm not good at designing protocols, I've also started working
on mpd compatibility layer to allow using the normal music playback
stuff with more clients (some of the clients I actually like, unlike
the seemingly GUI-only landscape of MPRIS :P).

Of course, dtas-player itself has most the capabilities of a
Unix shell; and those capabilities will certainly not be available
to mpd or MPRIS clients.

64 changes since dtas 0.11.0
      INSTALL: update documentation for 0.11.0 release
      splitfx: fix lossy output with player command is in use
      splitfx: fix non-generic, user-specified targets
      use monotonic clock on Ruby 2.1+
      dtas-splitfx: no arguments for quiet and --no-dither
      dtas-splitfx: support --trim argument
      process: implement array expansion to preserve spaces
      splitfx: show correct command for output
      splitfx: remove support for encoding opus
      dtas-console: bind "o" to display time in absolute seconds
      splitfx: avoid double-truncation with user command
      source/splitfx: allow watching extra external scripts
      splitfx: drop unnecessary variable
      splitfx: documentation for subclasses
      splitfx: simplify output display
      dtas-splitfx: comment describing -j (nothing) as infinite
      dtas-*edit: fix inotify watch invocations
      splitfx: allow -p/--sox-pipe option
      splitfx: ensure rate is an integer
      splitfx: set OUTFMT correctly for subenv if command is set
      favor recv and recv_nonblock over recvmsg variants
      parse_time: pass through numeric types
      parse_freq: trivial new module for parsing frequencies
      use a common /dev/null
      player: add "queue cat" command
      dtas-readahead: new script for -player users on Linux
      dtas-readahead: avoid polling on pause
      dtas-cueedit: escape path to temporary file
      dtas-readahead: make executable
      gemspec: use SPDX-compatible license
      README: add link to NNTP and Atom feeds
      player: cleanup command dispatch
      dtas-archive: allow specifying SoX compression factor
      gemspec: duplicate frozen string for older Rubygems
      allow building the gem without pandoc
      introduce dtas-mlib for music library functions
      dtas-mlib: add dump support for debugging
      tracklist: use lower number unique track IDs
      tracklist: do not mutate @list when serializing
      tracklist: avoid needlessly building a hash for track IDs
      tracklist: shuffle support
      tracklist: support limiting maximum tracklist size
      player: refactor and document tracklist interface
      player: tl (repeat|shuffle|max) and trim swap values
      tracklist: fixup idempotent "tl shuffle false"
      switch to exception-free non-blocking I/O
      add .gitattributes for Ruby method detection
      mlib: remove non-existent entries
      mlib: add stats support
      mlib: no kwargs for 1.9.3 compatibility
      mlib: add find/search functionality based on mpd
      mlib: split out the output format from the library
      mlib: remove kwargs harder
      player: reduce I/O priority of connected clients
      mlib: SYSTEM_DEFAULT handlers for SIGINT and SIGPIPE
      player: support "tl clear" internally
      test_unixserver: remove test for element limit
      player: dump state file asynchronously when requested
      parse_time: enable frozen_string_literal
      unix_accepted: enable checking for readability after emit
      tracklist: swap functionality
      player: show "tracklist" hash with summary info with "current"
      dtas-tl: learn an "edit" sub command
      doc: document additions to tracklist handling

* homepage: http://dtas.80x24.org/README
* http://dtas.80x24.org/INSTALL
* http://dtas.80x24.org/dtas-player.txt
* http://dtas.80x24.org/NEWS
* git clone git://80x24.org/dtas
* dtas-all@nongnu.org (plain-text only, no HTML mail, please)
* mailing list archives http://80x24.org/dtas-all/

-- 
EW


^ permalink raw reply	[relevance 5%]

* tracklist changes pushed out, release coming...
@ 2015-12-07 11:14  7% Eric Wong
  0 siblings, 0 replies; 2+ results
From: Eric Wong @ 2015-12-07 11:14 UTC (permalink / raw)
  To: dtas-all

Pushed out a bunch of tracklist-related changes to "master" of
git://80x24.org/dtas

Eric Wong (4):
      tracklist: shuffle support
      tracklist: support limiting maximum tracklist size
      player: refactor and document tracklist interface
      player: tl (repeat|shuffle|max) and trim swap values

 Documentation/dtas-player_protocol.txt |   8 +-
 lib/dtas/player/client_handler.rb      | 193 ++++++++++++++++++++-------------
 lib/dtas/tracklist.rb                  | 108 ++++++++++++++----
 test/test_tracklist.rb                 |  37 +++++++
 4 files changed, 250 insertions(+), 96 deletions(-)

Will probably release the current tree in a day or two with a few minor
tweaks, and have the mpd emulation proxy as a separate release in a few
more weeks.

The work-in-progress "mpd" branch is also pushed and
will be frequently rebased against master.

There's actually a lot of documentation stuff I'll need to catch
up on for the release.  I tend to be better at writing commit messages
:x

And so, commit messages available below:

commit 1a63ca046d42dc9d35fe656c034e0c791834ae67
Author: Eric Wong <e@80x24.org>
Date:   Mon Dec 7 11:04:32 2015 +0000

    player: tl (repeat|shuffle|max) and trim swap values

    It makes more sense to return the previous value
    rather than the newly-set one, since the user presumably
    knows what they're setting and might care about the
    previous value.

commit ebf129cb0e067c204343bfdd3c73c38abae7f335
Author: Eric Wong <e@80x24.org>
Date:   Mon Dec 7 10:43:07 2015 +0000

    player: refactor and document tracklist interface

    The dpc_tl method was becoming too large, split it up into
    sub-methods for easier readability.  While we're at it,
    at least make "tl repeat" consistent with "tl shuffle"
    when setting new values.

commit b08fe09e296524daf4de7ed16e0bed224f5008a2
Author: Eric Wong <e@80x24.org>
Date:   Mon Dec 7 09:50:26 2015 +0000

    tracklist: support limiting maximum tracklist size

    This defaults to 16384?  This is what mpd uses by default as well.
    Of course folks interacting with dtas-player directly can override
    this:

    	dtas-tl max INTEGER
    	dtas-tl max

    This is NOT meant to be a hard security measure for local users
    talking to dtas-player directly.  It is only to prevent
    accidentally stupid things like flooding the playlist with
    a broken script and to prevent remote users from DoS-ing
    us via the to-be-written mpd proxy/emulation layer.

    Remember: dtas-player itself will ALWAYS remain capable of
    executing arbitrary code :)

commit 3e013d3f24f0f935dce985d4c6bd155889e05dbb
Author: Eric Wong <e@80x24.org>
Date:   Mon Dec 7 03:51:33 2015 +0000

    tracklist: shuffle support

    This is in the MPRIS 2.0 TrackList spec and also in mpd (as "repeat"
    mode), so we can probably support it directly in player to ease
    implementations of future wrappers.

-- 
EW


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