Dual Stream Switcher is a sample project that uses GStreamer to switch between two files when a key is pressed. GTK+ is used for rendering the video and for event handling.

Meson is used for building, and since GStreamer and GTK+ are cross-platform, this means this can be built and run on Linux, OS X, and Windows.

  $ ./build.sh
  $ cd build/
  $ ./dual-stream-switcher 1.mp4 2.mp4

Press F to fullscreen. Hold down R to switch the video. Releasing R will switch back to the original video.

1.mp4 and 2.mp4 are sample video files from the Honda Civic R ad which inspired this project:

http://digitalsynopsis.com/advertising/honda-civic-type-r-the-other-side/