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* [ANN] dtas 0.12.0 - duct tape audio suite for *nix
@ 2015-12-14  4:03  7% 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 7%]

* [PATCH] splitfx: allow -p/--sox-pipe option
@ 2015-05-24  8:22  6% Eric Wong
  0 siblings, 0 replies; 2+ results
From: Eric Wong @ 2015-05-24  8:22 UTC (permalink / raw)
  To: dtas-all; +Cc: Eric Wong

This allows splitfx YAML files to operate more seamlessly with
external commands such as play(1) especially when combined with
the -t/--trim option.
---
 Documentation/dtas-splitfx.txt |  5 +++++
 bin/dtas-splitfx               |  9 +++++++--
 lib/dtas/splitfx.rb            | 19 +++++++++++++------
 3 files changed, 25 insertions(+), 8 deletions(-)

diff --git a/Documentation/dtas-splitfx.txt b/Documentation/dtas-splitfx.txt
index 2a599ea..c077137 100644
--- a/Documentation/dtas-splitfx.txt
+++ b/Documentation/dtas-splitfx.txt
@@ -59,6 +59,11 @@ to use ecasound(1), too.
      of "000".  For ease-of-typing, commas in this command-line
      argument are automatically expanded to spaces when passed to sox.
 
+-p, \--sox-pipe
+:    Used in place of an output target to specify outputting audio data in
+     the native "sox" format to another sox(1) or play(1) command.  This
+     moves printing of output to stderr and disables parallel job invocation.
+
 # FILE FORMAT
 
 * infile - string, the pathname of the original audio file
diff --git a/bin/dtas-splitfx b/bin/dtas-splitfx
index d363ab9..fc8cc69 100755
--- a/bin/dtas-splitfx
+++ b/bin/dtas-splitfx
@@ -6,8 +6,8 @@ require 'optparse'
 require 'dtas/splitfx'
 usage = "#$0 [-n|--dry-run][-j [JOBS]][-s|--silent] SPLITFX_FILE.yml [TARGET]"
 overrides = {} # FIXME: not tested
+default_target = "flac"
 opts = { jobs: 1 }
-jobs = 1
 OptionParser.new('', 24, '  ') do |op|
   op.banner = usage
   op.on('-n', '--dry-run') { opts[:dryrun] = true }
@@ -19,6 +19,10 @@ OptionParser.new('', 24, '  ') do |op|
   op.on('-r', '--rate RATE') { |val| opts[:rate] = val }
   op.on('-b', '--bits RATE', Integer) { |val| opts[:bits] = val }
   op.on('-t', '--trim POSITION') { |val| opts[:trim] = val.tr(',', ' ') }
+  op.on('-p', '--sox-pipe') do
+    opts[:sox_pipe] = true
+    default_target = 'sox'
+  end
   op.parse!(ARGV)
 end
 
@@ -39,8 +43,9 @@ ARGV.each do |arg|
   end
 end
 
+trap(:INT) { exit 130 }
 file = args.shift or abort usage
-target = args.shift || "flac"
+target = args.shift || default_target
 splitfx = DTAS::SplitFX.new
 splitfx.import(YAML.load(File.read(file)), overrides)
 splitfx.run(target, opts)
diff --git a/lib/dtas/splitfx.rb b/lib/dtas/splitfx.rb
index adc6c77..97e6153 100644
--- a/lib/dtas/splitfx.rb
+++ b/lib/dtas/splitfx.rb
@@ -10,8 +10,7 @@ require 'tempfile'
 # Unlike the stuff for dtas-player, dtas-splitfx is fairly tied to sox
 # (but we may still pipe to ecasound or anything else)
 class DTAS::SplitFX # :nodoc:
-  CMD = 'sox "$INFILE" $COMMENTS $OUTFMT "$OUTDIR$TRACKNUMBER.$SUFFIX" '\
-        '$TRIMFX $FX $RATEFX $DITHERFX'
+  CMD = 'sox "$INFILE" $COMMENTS $OUTFMT $OUTDST $TRIMFX $FX $RATEFX $DITHERFX'
   include DTAS::Process
   include DTAS::XS
   attr_reader :infile, :env, :command
@@ -155,8 +154,6 @@ class DTAS::SplitFX # :nodoc:
   def generic_target(target = "flac")
     outfmt = @infmt.dup
     outfmt.type = target
-    outfmt.bits = @bits if @bits
-    outfmt.rate = @rate if @rate
     { "command" => CMD, "format" => outfmt }
   end
 
@@ -174,6 +171,9 @@ class DTAS::SplitFX # :nodoc:
       outfmt.type = "flac"
     end
 
+    outfmt.bits = @bits if @bits
+    outfmt.rate = @rate if @rate
+
     # player commands will use SOXFMT by default, so we must output that
     # as a self-describing format to the actual encoding instances
     player_cmd = @command
@@ -211,6 +211,7 @@ class DTAS::SplitFX # :nodoc:
     env["OUTFMT"] = xs(outarg)
     env["SUFFIX"] = suffix
     env["OUTDIR"] = @outdir ? "#@outdir/".squeeze('/') : ''
+    env["OUTDST"] = opts[:sox_pipe] ? "-p" : "$OUTDIR$TRACKNUMBER.$SUFFIX"
     env.merge!(t.env)
 
     command = target["command"]
@@ -237,7 +238,7 @@ class DTAS::SplitFX # :nodoc:
       show_cmd = expand_cmd(env, command)
     end
 
-    puts(show_cmd.join(' ')) unless opts[:silent]
+    @out.puts(show_cmd.join(' ')) unless opts[:silent]
     command = 'true' if opts[:dryrun] # still gotta fork
 
     # pgroup: false so Ctrl-C on command-line will immediately stop everything
@@ -353,6 +354,12 @@ class DTAS::SplitFX # :nodoc:
     tracks = @tracks.dup
     pids = {}
     jobs = opts[:jobs] || tracks.size # jobs == nil => everything at once
+    if opts[:sox_pipe]
+      jobs = 1
+      @out = $stderr
+    else
+      @out = $stdout
+    end
     jobs.times.each do
       t = tracks.shift or break
       pid, tmp = splitfx_spawn(target, t, opts)
@@ -367,7 +374,7 @@ class DTAS::SplitFX # :nodoc:
           pid, tmp = splitfx_spawn(target, t, opts)
           pids[pid] = [ t, tmp ]
         end
-        puts "DONE #{done[0].inspect}" if $DEBUG
+        @out.puts "DONE #{done[0].inspect}" if $DEBUG
         done[1].close!
       else
         fails << [ t, status ]
-- 
EW



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2015-05-24  8:22  6% [PATCH] splitfx: allow -p/--sox-pipe option Eric Wong
2015-12-14  4:03  7% [ANN] dtas 0.12.0 - duct tape audio suite for *nix Eric Wong

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