FFmpeg API Composition and Merging
The FFmpeg API composes video, audio and image tracks on a timeline, merges external audio, builds videos from image sequences and extracts key frames.
Working with FFmpeg API
These are deterministic FFmpeg operations exposed as endpoints. Compose merges video, audio and image tracks into one timeline-based clip; Merge Audio Video combines footage with external or extracted audio in precise sync; Images to Video turns a sequence into MP4 with custom frame duration and FPS; and Extract Frame pulls the first, middle and last frames.
When to choose FFmpeg API
Use the FFmpeg API when the operation must be exact and repeatable — assembling a timeline, muxing audio, stitching frames. The Video API family covers the wider encoding and packaging catalog.
Choosing between the variants
Compose is the timeline assembler for mixed tracks. Merge Audio Video is the focused mux. Images to Video builds a clip from a sequence with FPS control, and Extract Frame produces thumbnails from fixed positions.
About FFmpeg API
- Are these operations generative?
- No. They are FFmpeg-powered and deterministic, so identical inputs and settings produce identical output every time.
- What is Images to Video useful for?
- Slideshows, stop-motion and stitching AI-generated frames into MP4, with custom frame duration and frame rate.
- Which frames does Extract Frame return?
- The first, middle and last frames, selected precisely, which covers most thumbnail and preview needs.