Programming Forums - An Audio and Video class for ruby

This code can be used for both audio and video file. Please give credit for using it. you can modify the code as much as you want. as you can see you edit it so that the files are used from any folder by changing this variables

DIR = "Audio"
@movie_name = "Movies/"+name

To use the audio, you simply do
myAudio = Audio.new() #create an instance
myAudio = Audio.new(filename) #you can use the file with and without the extension name
if you use decide to use the instance without the filename, you can simple call myAudio.audio_open(filename) and the myAudio.audio_play()
#==============================================================================

# ** Audio

#==============================================================================

class Audio

  WAV = Win32API.new('winmm.dll', 'PlaySoundA', 'pll', 'l') 

  MCIExecute = Win32API.new('winmm', 'mciExecute', ['P'], 'B')

  MCISendString = Win32API.new('winmm','mciSendString','%w(p,p,l,p)','V')

  GetDevCaps = Win32API.new('winmm', 'auxGetDevCapsA', %w(l p l), 'l')

  GetVolume = Win32API.new('winmm', 'auxGetVolume', %w(l p), 'l')

  SetVolume = Win32API.new('winmm', 'auxSetVolume', %w(l l), 'l')

  GetNumDev = Win32API.new('winmm', 'auxGetNumDevs', %w(), 'l')

  AUXCAPS_VOLUME = 0x1 #supports volume control

  AUXCAPS_LRVOLUME = 0x2 #separate left-right volume control

  AC = [0, 0, 0, 0, 0, 0].pack("L*")

  Volume = [0, 0].pack("L*")

  DIR = "Audio"

  #--------------------------------------------------------------------------

  # * Public Instance Variables

  #--------------------------------------------------------------------------

  attr_accessor :filename

  #--------------------------------------------------------------------------

  # * Object Initialization

  #--------------------------------------------------------------------------

  def initialize(filename = nil)

    dir = Dir.entries(DIR)

    @filename = rand(100).to_s

    unless filename.nil?

      dir.each{|file| 

      if file.include?(filename)

        @filename = file

        break

      end}

      @filename = filename if filename.include?('.')

      audio_open(@filename)

      audio_play()

    end

  end

  #--------------------------------------------------------------------------

  # * Audio Open

  #--------------------------------------------------------------------------

  def audio_open(filename)

    MCISendString.call("open "+DIR+"/"+filename+" alias "+@filename,0,0,0)

  end

  #--------------------------------------------------------------------------

  # * Audio Play

  #--------------------------------------------------------------------------

  def audio_play(filename = @filename)

    MCISendString.call("play " +filename+" from 0",0,0,0)

  end

  #--------------------------------------------------------------------------

  # * Audio Stop

  #--------------------------------------------------------------------------

  def audio_stop(filename = @filename)

    MCISendString.call("stop " + filename,0,0,0)

  end

  #--------------------------------------------------------------------------

  # * Audio Close

  #--------------------------------------------------------------------------

  def audio_close(filename = @filename)

    MCISendString.call("close "+ filename,0,0,0) 

  end

  #--------------------------------------------------------------------------

  # * Audio Pause

  #--------------------------------------------------------------------------

  def audio_pause(filename = @filename)

    MCISendString.call("pause "+ filename,0,0,0) 

  end

  #--------------------------------------------------------------------------

  # * Audio Resume

  #--------------------------------------------------------------------------

  def audio_resume(filename = @filename)

    #MCISendString.call("resume "+ filename,0,0,0) 

    MCISendString.call("play " +filename+"",0,0,0)

  end

  #--------------------------------------------------------------------------

  # * Audio Repeat

  #--------------------------------------------------------------------------

  def audio_repeat(filename = @filename)

    MCISendString.call("repeat "+ filename,0,0,0) 

  end

  #--------------------------------------------------------------------------

  # * Audio Seek

  #--------------------------------------------------------------------------

  def audio_seek(seek,filename = @filename)

    MCISendString.call("seek "+ filename + " to "+seek.to_s,0,0,0) 

  end

  #--------------------------------------------------------------------------

  # * Audio Rewind

  #--------------------------------------------------------------------------

  def audio_rewind(filename = @filename)

    MCISendString.call("rewind "+ filename,0,0,0) 

  end

  #--------------------------------------------------------------------------

  # * Audio Playback

  #--------------------------------------------------------------------------

  def audio_playback(filename = @filename)

    if audio_status == "stop"

      audio_play

    end

  end

  #--------------------------------------------------------------------------

  # * Audio Length

  #--------------------------------------------------------------------------

  def audio_length(filename = @filename)

    status = " " * 30

    MCISendString.call("status "+@filename+" length",status,255,0)

    true_status = status.unpack("*v")

    return true_status.to_s

  end

  #--------------------------------------------------------------------------

  # * Audio Status

  #--------------------------------------------------------------------------

  def audio_status(filename = @filename)

    status = " " * 255

    MCISendString.call("status "+@filename+" mode",status,255,0)

    true_status = status.unpack("aaaa")

    return true_status.to_s

  end

end



#==============================================================================

# ** Movie

#==============================================================================

class Movie

  FindWindow = Win32API.new('user32', 'FindWindow', %w(p p), 'l')

  MCISEND = Win32API.new('winmm','mciSendString','%w(p,p,l,l)','V')

  Message = Win32API.new('user32','SendMessage','%w(l,l,l,l)','V')

  SystemMetric = Win32API.new('user32','GetSystemMetrics','%w(l)','L')

  #--------------------------------------------------------------------------

  # * Public Instance Variables

  #--------------------------------------------------------------------------

  attr_accessor :hwnd

  #--------------------------------------------------------------------------

  # * Object Initialization

  #--------------------------------------------------------------------------

  def initialize(movie, window = nil)

    @filename = Dir.entries("Movies")

    for i in 0...@filename.size

      if @filename[i].include?(movie)

        name = @filename[i]

        break

      end

    end

    @movie_name = "Movies/"+name

    @window = window

    main

  end

  #--------------------------------------------------------------------------

  # * Main

  #--------------------------------------------------------------------------

  def main

    @hwnd = FindWindow.call(nil,@window)

    MCISEND.call("open \""+@movie_name+"\" alias FILE style 1073741824 parent " + @hwnd.to_s,0,0,0)

    width = SystemMetric.call(0)

    if @width == 640

      Graphic.update

      sleep(1)

      Graphic.update

      sleep(1)

      Graphic.update

      sleep(1)

    end

    status = " " * 255

    MCISEND.call("play FILE",0,0,0)

    loop do

      sleep(0.1)

      Message.call(@hwnd.to_i,11,0,0)

      Message.call(@hwnd.to_i,11,1,0)

      MCISEND.call("status FILE mode",status,255,0)

      true_status = status.unpack("aaaa")

      break if true_status == "stop".split(//)

    end

    MCISEND.call("close FILE",0,0,0)

  end

end