Module: FLVTool2::Base

Defined in:
lib/flvtool2/base.rb

Class Method Summary collapse

Class Method Details

.add(options, stream, in_path, out_path) ⇒ Object 



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# File 'lib/flvtool2/base.rb', line 59

def add(options, stream, in_path, out_path)
  tag_structures = MiXML.parse( File.open( options[:tag_file], File::RDONLY ) { |file| file.readlines }.join )
  
  add_tag = Proc.new do |data|  
    
    tag = FLV::FLVMetaTag.new
  
    overwrite = ( data['overwrite'] && data['overwrite'].downcase ) == 'true' || false
    data.delete( 'overwrite' )
    
    tag.event = data['event'] || 'event'
    data.delete( 'event' )
    
    tag.timestamp = ( data['timestamp'] && data['timestamp'].to_i ) || 0
    tag.timestamp = stream.find_nearest_keyframe_video_tag(tag.timestamp).timestamp if options[:keyframe_mode] && data['type'] == 'navigation'
    data.delete( 'timestamp' )
    data['time'] = tag.timestamp / 1000
    
    tag.meta_data.merge!( data )
  
    stream.add_tags( tag, false, overwrite )
  end
  
  tag_structures['tags'].each do |tag_name, value|
    case tag_name
    when 'metatag'
      if value.class == Array
        value.each { |_value| add_tag.call( _value ) } 
      else
        add_tag.call( value )
      end
    else
    end
  end
  
  return true
end

.add_meta_data_tag(stream, options) ⇒ Object 



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# File 'lib/flvtool2/base.rb', line 177

def add_meta_data_tag(stream, options)
  # add onLastSecond tag
  onlastsecond = FLV::FLVMetaTag.new
  onlastsecond.event = 'onLastSecond'
  onlastsecond.timestamp = ((stream.duration - 1) * 1000).to_int
  stream.add_tags(onlastsecond, false) if onlastsecond.timestamp >= 0
  
  stream.add_meta_tag({ 'metadatacreator' => options[:metadatacreator], 'metadatadate' => Time.now }.merge(options[:metadata]))
  unless options[:compatibility_mode]
    stream.on_meta_data_tag.meta_data['duration'] += (stream.frame_sequence || 0) / 1000.0
  end
end

.after_print(options) ⇒ Object 



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# File 'lib/flvtool2/base.rb', line 172

def after_print(options)
  puts '</fileset>' if options[:xml]
end

.before_print(options) ⇒ Object 



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# File 'lib/flvtool2/base.rb', line 148

def before_print(options)
  puts "<?xml version=\"1.0\"?>\n<fileset>" if options[:xml]
end

.create_directories_for_path(path_to_build) ⇒ Object 



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# File 'lib/flvtool2/base.rb', line 275

def create_directories_for_path(path_to_build)
  parts = path_to_build.split(File::SEPARATOR)
  parts.shift #removes '/' or 'c:\'
  parts.pop # removes filename
  
  parts.inject('') do |path, dir|
    begin
      path += File::SEPARATOR + dir
      Dir.mkdir path
    rescue Object => e
      raise e unless File.directory?(path)
    end
    path
  end
end

.cut(options, stream, in_path, out_path) ⇒ Object 



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# File 'lib/flvtool2/base.rb', line 118

def cut(options, stream, in_path, out_path)
  
  in_point = options[:keyframe_mode] ? stream.find_nearest_keyframe_video_tag(options[:in_point] || 0).timestamp : options[:in_point]
  stream.cut( :in_point => in_point, :out_point => options[:out_point], :collapse => options[:collapse] )
  
  return true
end

.debug(options, stream, in_path, out_path) ⇒ Object 



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# File 'lib/flvtool2/base.rb', line 98

def debug(options, stream, in_path, out_path)
  
  puts "---\n"
  puts "path: #{in_path}"

  unless stream.nil?
    if options[:tag_number]
      puts "  tag_number: #{options[:tag_number]}"
      puts "  " + stream.tags[ options[:tag_number] - 1 ].inspect.join( "\n  " )
    else
      stream.tags.each_with_index do |tag, index|
        puts "##{index + 1} #{tag.info}"
      end
    end
  end
  
  return false
end

.execute!(options) ⇒ Object 



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# File 'lib/flvtool2/base.rb', line 37

def execute!(options)
  
  options[:commands].each do |command|
    before_filter = "before_#{command.to_s}".intern
    send(before_filter, options) if respond_to? before_filter
  end
  
  process_files(options) do |stream, in_path, out_path|
    write_stream = false
    options[:commands].each do |command|
      write_stream = true if send( command, options, stream, in_path, out_path )
    end
    stream.write if write_stream && !options[:simulate]
  end
  
  options[:commands].each do |command|
    after_filter = "after_#{command.to_s}".intern
    send(after_filter, options) if respond_to? after_filter
  end
end

.object_to_hash(object) ⇒ Object 



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# File 'lib/flvtool2/base.rb', line 165

def object_to_hash(object)
  object.instance_variables.inject( {} ) do |hash, variable|
    hash[variable.gsub('@', '')] = object.instance_variable_get( variable.intern )
    hash
  end
end

.open_stream(in_path, out_path = nil, stream_log = false) ⇒ Object 



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# File 'lib/flvtool2/base.rb', line 253

def open_stream(in_path, out_path = nil, stream_log = false)
  attributes = (RUBY_PLATFORM =~ /win32/) ? File::BINARY : 0
  
  if in_path == 'pipe'
    in_stream = $stdin
  elsif in_path == out_path || out_path.nil?
    in_stream = File.open( in_path, File::RDWR|attributes )
  else
    in_stream = File.open( in_path, File::RDONLY|attributes )
  end
  
  if out_path == 'pipe' || ( in_path == 'pipe' && out_path.nil? )
    out_stream = $stdout
  elsif in_path != out_path && !out_path.nil?
    out_stream = File.open( out_path, File::CREAT|File::WRONLY|attributes )
  else
    out_stream = nil
  end
  
  FLV::FLVStream.new( in_stream, out_stream, stream_log )
end

.print(options, stream, in_path, out_path) ⇒ Object 



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# File 'lib/flvtool2/base.rb', line 152

def print(options, stream, in_path, out_path)
  
  if options[:xml]
    puts "  <flv name=\"#{in_path}\">"
    puts MiXML.dump( stream.on_meta_data_tag && stream.on_meta_data_tag.meta_data, 2 )
    puts "  </flv>"
  else
    puts MiYAML.dump( { in_path => ( stream.on_meta_data_tag && stream.on_meta_data_tag.meta_data ) } )
  end
  
  return false
end

.process_files(options) ⇒ Object 



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# File 'lib/flvtool2/base.rb', line 193

def process_files(options)
  
  if options[:in_pipe]
  
    unless options[:omit_out] || options[:out_path].nil?
      create_directories_for_path( options[:out_path] )
      out_path = options[:out_path]
    else
      out_path = nil
    end
    
    begin
      stream = open_stream( 'pipe', out_path )
      yield stream, 'pipe', out_path
      begin
        stream.close
      rescue
      end
      
    rescue Exception => e
      show_exception(e, options)
    end
    
  else
  
    if File.directory?( options[:in_path] )
      pattern = options[:recursive] ? "#{File::SEPARATOR}**#{File::SEPARATOR}*.flv" : "#{File::SEPARATOR}*.flv"
      file_names = Dir[options[:in_path] + pattern]
    else
      file_names = [options[:in_path]]
    end
    
    file_names.each do |in_path|
  
      if options[:out_pipe]
        out_path = 'pipe'
      else
        out_path = options[:out_path]
        unless options[:out_path].nil?
          out_path = in_path.gsub( options[:in_path], options[:out_path] )
          create_directories_for_path( out_path )
        end
      end
      
      begin
        stream = open_stream( in_path, out_path, options[:stream_log] )
        yield stream, in_path, out_path
  
        begin
          stream.close
        rescue
        end
        
      rescue Exception => e
        show_exception(e, options)
      end
    end
  end
end

.show_exception(e, options) ⇒ Object 



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# File 'lib/flvtool2/base.rb', line 291

def show_exception(e, options)
  puts "ERROR: #{e.message}\nERROR: #{e.backtrace.join("\nERROR: ")}"
  puts "Skipping file #{options[:in_path]}\n" if options[:verbose]
end

.update(options, stream, in_path, out_path) ⇒ Object 



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# File 'lib/flvtool2/base.rb', line 127

def update(options, stream, in_path, out_path)
  
  if ( 
        options[:preserve] && 
        ( 
          !stream.on_meta_data_tag ||
          ( stream.on_meta_data_tag && stream.on_meta_data_tag.meta_data['metadatacreator'] != options[:metadatacreator] ) 
        ) 
     ) || !options[:preserve]
    
    add_meta_data_tag( stream, options )
  
    return true
  else
    puts 'Input file is FLV v1.1 yet. No update necessary.' if options[:verbose]
    
    return false
  end
end