{
  // enableFfmpegLog: true,
  outPath: './audio-transition.mp4',
  keepSourceAudio: true,
  defaults: {
    duration: 3,
    transition: { duration: 1, name: 'directional' },
  },
  clips: [
    { layers: [
      { type: 'title-background', text: 'Default transition' },
      { type: 'audio', path: './assets/sample1.m4a' }
    ] },
    { transition: { duration: 0.2 }, layers: [
      { type: 'title-background', text: 'Fast transition' },
      { type: 'audio', path: './assets/sample2.m4a' }
    ] },
    { transition: { duration: 0 }, layers: [
      { type: 'title-background', text: 'No transition' },
      { type: 'audio', path: './assets/sample1.m4a' }
    ] },
    { transition: { audioInCurve: 'exp', audioOutCurve: 'exp' }, layers: [
      { type: 'title-background', text: 'Exp curve' },
      { type: 'audio', path: './assets/sample2.m4a' }
    ] },
    { transition: { name: 'dummy' }, layers: [
      { type: 'title-background', text: 'Dummy' },
      { type: 'audio', path: './assets/sample1.m4a' }
    ] },
    { transition: { duration: 2 }, layers: [
      { type: 'title-background', text: 'Too short' },
      { type: 'audio', path: './assets/sample2.m4a' }
    ] },
    { duration: 1, transition: { duration: 2 }, layers: [
      { type: 'title-background', text: 'Too short' },
      { type: 'audio', path: './assets/sample2.m4a' }
    ] },
    { duration: 1, transition: { duration: 2 }, layers: [
      { type: 'title-background', text: 'Too short' },
      { type: 'audio', path: './assets/sample2.m4a' }
    ] },
    { layers: [
      { type: 'title-background', text: 'THE END' },
      { type: 'audio', path: './assets/sample2.m4a' }
    ] },
  ],
}