This little project does only one simple thing: it generates a series of videos based on some data in .yaml files and a template.html, rendering each as MP4 files (using ffmpeg) from the moment an element .capture is displayed, until it is hidden.

My primary goal was to create dynamic videos to introduce speakers in the video recording of the sessions at Golang Montréal meetups (https://golangmontreal.org). I wanted to cut the post-production cost of doing videos recordings of the session, so I coded the repetitive stuff.

Check talks.yaml, sponsors.yaml and event.yaml to see the format. This mostly refers to the structure we use in https://github.com/gomtl/golangmontreal.org content and data dirs.

See the included template.html for an example template.

It then uses ChromeDriver (using the agouti WebDriver implementation ) to open the browser, resize it properly, load the template from its own internal web server. It waits until an HTML node with a capture class appears (on the body for example). It then starts ffmpeg to capture the screen at 25 fps, writing an .mp4 file in H.264 to disk for each entry in the data.yaml. When the capture class disappears, the video stops. It then proceeds to the next video.

Pretty simple eh ?

You need to have the binary for ffmpeg available in your PATH (with libx264 support). You also need chromedriver to be in your PATH for agouti to pick up. You'll also need Google Chrome install.. I'll let you figure that one out.

This currently runs only on Linux (uses the x11grab ffmpeg module). The window-decorations dimensions are modeled around the Ubuntu Unity environment and are currently hard-coded.

It could be adapted to run on Windows though.