1. Prepare the Content

DASH.encrypt itself does not encode content. Therefore you need encode the content before. There are a bunch of commercial H264 encoders but as everybody has access to ffmpeg I'll use it for the examples:

1. Download a source file:

    $ wget http://mirrorblender.top-ix.org/movies/sintel-1024-surround.mp4
   

2. Create video file encoded at 250k 436p, H.264 codec:

    $ ffmpeg -i sintel-1024-surround.mp4 -an -b:v 250k -s:v 1024x436 -keyint_min 24 -g 72 -vcodec libx264 vid_rep_1.mp4
   

3. Create video file encoded at 500k 436p, H.264 codec:

    $ ffmpeg -i sintel-1024-surround.mp4 -an -b:v 500k -s:v 1024x436 -keyint_min 24 -g 72 -vcodec libx264 vid_rep_2.mp4
   

4. Create video file encoded at 1000k 436p, H.264 codec:

    $ ffmpeg -i sintel-1024-surround.mp4 -an -b:v 1000k -s:v 1024x436 -keyint_min 24 -g 72 -vcodec libx264 vid_rep_3.mp4
   

5. Create audio file encoded at 69k stereo, HE-AAC codec:

    $ ffmpeg -i sintel-1024-surround.mp4 -vn -ac 2 -acodec libfdk_aac -profile:a aac_he -ab 64k sou_rep_1.mp4