How to record Video Stream With Vp9 codec using ffmpeg

Integration
2

I use the VP9 KSVC Mode.

const codec = this._mediaDevice.rtpCapabilities.codecs.find((codec) => codec.mimeType.toLowerCase() === 'video/vp9');
					this._webcamProducer = await this._sendTransport.produce(
						{
							track,
							codec,
							encodings:[
								{ scalabilityMode: 'S3T3_KEY' }
							],
							codecOptions :
							{
								videoGoogleStartBitrate : 1000
							},
							appData :
							{
								source : 'webcam',
								videoAspectRatio:1.777,
								width:VIDEO_CONSTRAINS[resolution].width.ideal
							}
						});