use streamio-ffmpeg

Rakefile

@@ -62,6 +62,7 @@ spec = Gem::Specification.new do |s|
   s.add_dependency('ruby-mp3info')
   s.add_dependency('riff', '<= 0.3.0')
   s.add_dependency('tempdir')
+  s.add_dependency('streamio-ffmpeg')
   #s.required_ruby_version = '>= 1.8.2'
 
   s.files = %w(README.rdoc ChangeLog Rakefile) +

lib/scissor/writer.rb

@@ -2,6 +2,7 @@
 require 'pathname'
 require 'open4'
 require 'temp_dir'
+require 'streamio-ffmpeg'
 
 module Scissor
   class Writer
@@ -17,7 +18,6 @@ def initialize
       @tracks = []
 
       which('ecasound')
-      which('ffmpeg')
       which('rubberband')
     end
 
@@ -40,7 +40,8 @@ def join_fragments(fragments, outfile, tmpdir)
         fragment_outfile = tmpdir + (Digest::MD5.hexdigest(fragment_filename.to_s) + '.wav')
 
         unless fragment_outfile.exist?
-          run_command("ffmpeg -i \"#{fragment_filename}\" -ar 44100 \"#{fragment_outfile}\"")
+          movie = FFMPEG::Movie.new(fragment_filename.to_s)
+          movie.transcode(fragment_outfile.to_s, :audio_sample_rate => 44100)
         end
 
         cmd << "-a:#{index} -o:#{outfile} -y:#{position}"
@@ -115,7 +116,8 @@ def to_file(filename, options)
 
         mix_files(tmpfiles, final_tmpfile = tmpdir + 'tmp.wav')
 
-        run_command("ffmpeg -ab #{options[:bitrate]} -i \"#{final_tmpfile}\" -ar 44100 \"#{full_filename}\"")
+        movie = FFMPEG::Movie.new(final_tmpfile.to_s)
+        movie.transcode(full_filename.to_s, :audio_sample_rate => 44100, :audio_bitrate => options[:bitrate])
       end
     end
 

spec/scissor_spec.rb

@@ -7,6 +7,8 @@
 
 describe Scissor do
   before do
+    FFMPEG.logger.level = Logger::WARN
+
     @mp3 = Scissor(fixture('sample.mp3'))
     mkdir '/tmp/scissor-test'
   end