From: Jon Dahl <jon@...>
Date: 2007-10-03T05:18:39+09:00
Subject: [ANN] RVideo - Ruby video transcoding library

RVideo has just been released as a gem!

RVideo is a Ruby library inspects and processes video and audio files
by providing an interface to free Unix tools like ffmpeg. Install
with:

sudo gem install rvideo

(RVideo requires ffmpeg, and may require other video tools, depending
on what you intend to do.)

For more information, see the full announcement at RailSpikes
(http://railspikes.com/2007/10/2/rvideo-0-9-is-now-available), or the
RVideo site at Google Code (http://code.google.com/p/rvideo)


Code example 1: inspecting a video file
------------------------------

file = RVideo::Inspector.new(:file => "#{FILE_PATH}/filename.mp4")
file.video_codec  # => mpeg4
file.audio_codec  # => aac
file.resolution   # => 320x240

Code example 2: transcoding a video file
------------------------------

command = "ffmpeg -i $input_file -vcodec xvid -s $resolution$
$output_file$"
options = {
  :input_file => "#{FILE_PATH}/filename.mp4",
  :output_file => "#{FILE_PATH}/processed_file.mp4",
  :resolution => "640x480"
  }

transcoder = RVideo::Transcoder.new

transcoder.execute(command, options)

transcoder.processed.video_codec # => xvid
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