writer.rb in scissor-0.2.0

- old
+ new

@@ -1,9 +1,10 @@
 require 'digest/md5'
 require 'pathname'
 require 'open4'
 require 'temp_dir'
+require 'streamio-ffmpeg'
 
 module Scissor
   class Writer
     include Loggable
 
@@ -15,11 +16,10 @@
 
     def initialize
       @tracks = []
 
       which('ecasound')
-      which('ffmpeg')
       which('rubberband')
     end
 
     def add_track(fragments)
       @tracks << fragments
@@ -38,11 +38,12 @@
         end
 
         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}"
 
         if fragment.stretched? && fragment.pitch.to_f != 100.0
@@ -113,10 +114,11 @@
           join_fragments(fragments, tmpfile, tmpdir)
         end
 
         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
 
     def which(command)
       run_command("which #{command}")