From 0f9bfb784b7bbccf86b7d7d241982ba4e703efd4 Mon Sep 17 00:00:00 2001
From: Eric Wong <normalperson@yhbt.net>
Date: Sun, 25 Aug 2013 11:40:19 +0000
Subject: preliminary support for avconv/avprobe from libav

avconv is capable of outputting to the .sox format, greatly
simplifying our life as it enables us to easily apply sox
effects on a per-source file basis.

dtas-sourceedit and the "source" protocol commands will need
to change to support internal priorities (like sink).
---
 lib/dtas/source/sox.rb | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

(limited to 'lib/dtas/source/sox.rb')

diff --git a/lib/dtas/source/sox.rb b/lib/dtas/source/sox.rb
index 64ce095..954c1a5 100644
--- a/lib/dtas/source/sox.rb
+++ b/lib/dtas/source/sox.rb
@@ -8,16 +8,23 @@ require_relative '../replaygain'
 # this is usually one input file
 class DTAS::Source::Sox # :nodoc:
   require_relative 'file'
-  require_relative 'mp3gain'
 
   include DTAS::Source::File
-  include DTAS::Source::Mp3gain
 
   SOX_DEFAULTS = COMMAND_DEFAULTS.merge(
     "command" => 'exec sox "$INFILE" $SOXFMT - $TRIMFX $RGFX',
     "comments" => nil,
   )
 
+
+  def self.try(infile, offset = nil)
+    err = ""
+    DTAS::Process.qx(%W(soxi #{infile}), err: err)
+    return if err =~ /soxi FAIL formats:/
+    new(infile, offset)
+  rescue
+  end
+
   def initialize(infile, offset = nil)
     command_init(SOX_DEFAULTS)
     source_file_init(infile, offset)
@@ -79,11 +86,6 @@ class DTAS::Source::Sox # :nodoc:
     tmp
   end
 
-  def replaygain
-    @rg = DTAS::ReplayGain.new(comments) ||
-          DTAS::ReplayGain.new(mp3gain_comments)
-  end
-
   def spawn(format, rg_state, opts)
     raise "BUG: #{self.inspect}#spawn called twice" if @to_io
     e = format.to_env
-- 
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