If you want to build a digital picture frame with your Raspberry Pi, check out the free Photo app from FRAMEN. There is no faster way to build a great photo frame.
All the code that is being referred to in the video is in this article:
"The easiest way to build a Raspberry Pi picture frame: Streaming with the FRAMEN Photo App"
The video comes with English or German subtitles. To activate, click on the "CC" button in the lower right area of the video control strip.
To find all the components you need, click here.