Class: DirectoryProcessor

Inherits:
Object
  • Object
show all
Defined in:
lib/DirectoryProcessor.rb

Overview

Processes one or more directories

  • Scan for Multisamples *

TODO: Refactor this into an application class

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ DirectoryProcessor

Instantiate the DirectoryProcessor



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# File 'lib/DirectoryProcessor.rb', line 30

def initialize
  # root directories to look for samples under

  @dirs = []
   
   # optional message to place in the header of each SFZ file

  @message = false
   
   # keymapping setting, set to a Multisample contant.  

   # The currently supported values are:

   # * Multisample::XFADE (default )

   # * Multisample::STRICTKEYS

  @mapping = Multisample::XFADE
   
   # If true (which is the default), all SFZ files are generated in the

   # directory the script was called from.

  @generate_in_top_dir = true
  
  @transpose = 0
  @padding = 12
end

Instance Attribute Details

#dirs ⇒ Object

Returns the value of attribute dirs.



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# File 'lib/DirectoryProcessor.rb', line 26

def dirs
  @dirs
end

#generate_in_top_dir ⇒ Object

Returns the value of attribute generate_in_top_dir.



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# File 'lib/DirectoryProcessor.rb', line 26

def generate_in_top_dir
  @generate_in_top_dir
end

#mapping ⇒ Object

Returns the value of attribute mapping.



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# File 'lib/DirectoryProcessor.rb', line 26

def mapping
  @mapping
end

#message ⇒ Object

Returns the value of attribute message.



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# File 'lib/DirectoryProcessor.rb', line 26

def message
  @message
end

#padding ⇒ Object

Returns the value of attribute padding.



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# File 'lib/DirectoryProcessor.rb', line 26

def padding
  @padding
end

#transpose ⇒ Object

Returns the value of attribute transpose.



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# File 'lib/DirectoryProcessor.rb', line 26

def transpose
  @transpose
end

Instance Method Details

#get_unique_filename(name, path) ⇒ Object 



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# File 'lib/DirectoryProcessor.rb', line 136

def get_unique_filename( name, path )
  result = "#{name}.sfz"
  count = 0
  while( FileTest.exists?( result ) )
    result = "#{name}-#{count}.sfz"
    count = count + 1
  end
  result
end

#process_multisample_dir(path, top_path) ⇒ Object

starting from directory,



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# File 'lib/DirectoryProcessor.rb', line 75

def process_multisample_dir( path, top_path )
  named_hash = {}
  #numbered_hash = Hash.new

  
  puts 

  Dir.chdir( path )
  Dir.glob( "*#{Sample.suffix_glob}" ).each{ |file|

    # Start tracking potential instrument names

    if NamedSample.sample?( file )

      # Sanitize hashkeys

      file_basename =  File.basename( file )
    file_hashkey = sanitize_multisample_name( file_basename, path )

      #add Sample to a hashed Multisample

    multi = get_multisample( file_hashkey, path, named_hash )
    multi.add( NamedSample.new( file_basename ) )
    named_hash[ file_hashkey ] = multi
    end
  }

  # for each hash entry, make an SFZ

  for key in named_hash.keys.sort
    
    filename = key
  # generate the SFZ file from the Multisample

  
  extra_name = ""  
  if @generate_in_top_dir 
    Dir.chdir( top_path )
    relative_path = path.gsub( /^\\/, '' ).gsub( /^\//, '' )
    named_hash[ key ].default_path = true
    
      #filename = "#{top_path}/#{key}.sfz"

      # create a name based on subfolders to ensure uniqueness

    extra_name = relative_path.gsub( /\\/, "_" ).gsub( /\//, "_" ) + "_"
      extra_name.gsub!(/^(\.|-|_)+/, '')
      
      filename = "#{extra_name}#{filename}"
      
  end
    filename = filename.gsub( ' ', '_')
    filename = get_unique_filename( filename, path )
          
    puts "#{key}: #{filename}"
    multi = named_hash[ key ]
    #puts multi.to_sfz

    if( multi.valid? )
    f = File.new( filename, "w" )
    f.puts multi.to_sfz
    f.close
  else
    puts "NOT VALID\n\n\n"
  end

  end
end

#sanitize_multisample_name(string, path) ⇒ Object

Santizes a multisample



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# File 'lib/DirectoryProcessor.rb', line 151

def sanitize_multisample_name( string, path )
# puts "sanitizing '#{string}':"


# FIXME: Potential bug: this assumes the first portion of the string

# is the most significant indicator

  result = string.gsub( /\.#{Sample.suffix_regexp}$/, '' )
result = result.sub( NamedSample.regexp, '?' )
(result,) = result.split('?')

# sometimes, sample producers A

  if result.nil?
    result = File.basename( path )
  end

  # otherwise, strip it of common paired symbols

  result.sub!( /_\d\d(_)$/, '' )  # _01 + .wav and _01_.wav

  result.sub!( /[(\[{_]$/, '' )   # blahblha( + A#1

  result.sub!( /[-_]+$/, '' )
  #result.sub!( /^[-_]+/, '' )

  result.sub!( /\s*$/, '' )
result
end

#scan_dirs ⇒ Object

Scan each directory for multisamples



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# File 'lib/DirectoryProcessor.rb', line 54

def scan_dirs     
multidirs = get_multisample_directories

# convert each multisample directory

pwd = Dir.getwd
   if multidirs.size > 0
    
    puts "converting..."
    for dir in multidirs
      Dir.chdir( pwd )
      process_multisample_dir( dir, pwd )
    end
    
  else
    raise NoMultisamplesInDirectoryException      
   end
end