Added a method to get the number of clips in the decoder list
The number of clips to decode will be displayed now
Added a empty method for the encoding of the clips
Added a call to the encoding method to start the joining of the single clips
Added code to do basic encoding
Added a method stub to estimate the output parameters for the joined movie
The estimation method can now throw an exception
The output parameters will now be estimated as soon as the encoding begins
Added code to figure out which codec to use
Removed an old debug statement
Added output.mp4 to the ignore list
Made use of the gathered information for creating the output file
Fixed the warnings about the used of deprecated methods