Images to Slideshow
A Node API that turns a set of still images into an MP4 slideshow with crossfades and music, built as Shotlify's backend.
Node.js, Express, FFmpeg, videoshow
The other half of Shotlify. Shotlify captures the frames in the browser, and this service turns them into a video.
What’s in it
- One endpoint.
POST /slideshowtakes a JSON list of base64 images and responds with the finished MP4. - FFmpeg under the hood. It runs videoshow on fluent-ffmpeg: five seconds per image, one-second crossfades, H.264 at 640px wide, and a royalty-free music track that fades in and out.
- Leaves nothing behind. Uploaded frames go to a temp folder, and both the frames and the rendered video are deleted once the response is sent.
- Self-contained binaries. FFmpeg and ffprobe come from npm installer packages, so nothing has to be installed on the host.
The screenshot is a real run: two frames in, one slideshow out, and the cleanup after.
Status
Paused. The service works on its own. Hooking it up to Shotlify’s Create Slideshow button is the missing piece.