import { getFFmpegVersion, listCodecs, hasCodec, isNativeAvailable } from 'node-webcodecs';

// Codec state lifecycle
type CodecState = 'unconfigured' | 'configured' | 'closed';

// Buffer input type
type BufferSource = ArrayBuffer | ArrayBufferView;

// Video pixel formats
type VideoPixelFormat =
  | 'I420' | 'I420A' | 'I422' | 'I444'
  | 'NV12' | 'RGBA' | 'RGBX' | 'BGRA' | 'BGRX';

// Audio sample formats
type AudioSampleFormat =
  | 'u8' | 's16' | 's32' | 'f32'
  | 'u8-planar' | 's16-planar' | 's32-planar' | 'f32-planar';

// 1. Create encoder with output callback
const encoder = new VideoEncoder({
  output: (chunk, metadata) => { /* handle encoded chunk */ },
  error: (e) => console.error(e)
});

// 2. Configure codec settings
encoder.configure({
  codec: 'avc1.42001f',
  width: 1920,
  height: 1080,
  bitrate: 5_000_000
});

// 3. Feed frames
encoder.encode(frame);

// 4. Finish encoding
await encoder.flush();
encoder.close();

// 1. Create decoder with output callback
const decoder = new VideoDecoder({
  output: (frame) => { /* handle decoded frame */ },
  error: (e) => console.error(e)
});

// 2. Configure with codec info
decoder.configure({
  codec: 'avc1.42001f',
  codedWidth: 1920,
  codedHeight: 1080
});

// 3. Feed chunks
decoder.decode(chunk);

// 4. Finish decoding
await decoder.flush();
decoder.close();