Ruby video player implemented using HornetsEye

play.rb

require 'rubygems'
require 'hornetseye_ffmpeg'
require 'hornetseye_xorg'
require 'hornetseye_alsa'
include Hornetseye
input = AVInput.new 'sintel.mp4'
alsa = AlsaOutput.new 'default:0', input.sample_rate, input.channels
audio_frame = input.read_audio
X11Display.show 600, :output => XVideoOutput do |display|
  img = input.read
  while alsa.avail >= audio_frame.shape[1]
    alsa.write audio_frame
    audio_frame = input.read_audio
  end
  delay = input.video_pos - input.audio_pos + (alsa.delay + audio_frame.shape[1]).quo(alsa.rate)
  display.event_loop [delay, 0].max
  img
end