I have both a graph cross stitch pattern and in-depth video tutorial to help you with this technique but it is really quite simple - cross stitch using a tapestry needle over your single crochet stitches! Now I'd like to offer a little written explanation
This screenshot shows how I used Adobe Premiere Pro to edit my sequence. I used this to a large extent to edit my music video. I found it easy to import and sort footage and music files. This was easy to use and probably the most used program out of my whole production. Here you can see how I have numerous clips throughout the duration of the song, due to the concept of my music video and the green screen effects.