Function attachMetadataExtractor

attachMetadataExtractor<Meta, O>(rtpProcessor, worker, processMetadata, options?): Promise<(() => void)>
Convenience API that builds on top of attachRtpScriptTransform for transforms that just need to extract metadata from frames and send it back.
Type Parameters
- Meta = unknown
- O = unknown
Parameters
- rtpProcessor: RTCRtpReceiver | RTCRtpSender
  
  part of the RTP transceiver to attach the transform at (either the RTPRtcSender, or the RTPRtcReceiver).
- worker: Worker
  
  worker where processing will take place; this worker must have the worker service started, and will have its callback invoked with the created transformer (see module description for requirements). the same worker can be used for multiple metadata extractions.
- processMetadata: ((meta) => void)
  
  callback to invoke whenever a new metadata frame arrives
  - - (meta): void
    - callback to invoke whenever a new metadata frame arrives
      
      Parameters
      
      meta: Meta
      
      Returns void
- options: AttachRtpScriptTransformOptions<O> = {}
  
  attachment options
Returns Promise<(() => void)>
Stop / deregister callback, wrapped in a promise that resolves when the transformer is fully set up.
- Defined in lib/sync/RtpScriptTransform.ts:333

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