public abstract class VideoWriter

Encodes application supplied frames and audio into a video file using the platform’s native codecs. Obtain a VideoWriter from a VideoWriterBuilder, then push video frames (each as an Image you fully control, with an explicit presentation timestamp) and, optionally, interleaved PCM audio. Call #close() to finalize and mux the file.

This is the encode counterpart of VideoReader. Because every frame is just an Image, you have complete control over the pixels: render charts, overlays, transformed camera frames, generated animation, etc. into the image’s Graphics before handing it to the writer.

Example:

VideoWriter w = new VideoWriterBuilder().path(out).width(640).height(480).frameRate(30).build();
for (int i = 0; i < 90; i++) {
    Image frame = Image.createImage(640, 480, 0xff000000);
    Graphics g = frame.getGraphics();
    g.setColor(0xffffff);
    g.fillRect(i * 6 % 640, 0, 40, 480);
    w.writeFrame(frame, Math.round(i * 1000f / 30f));
}
w.close();