uplink/app/streams/metadata_stream.go

package streams

import "io"

type MetadataStream struct {
	me   *MetadataExtractor
	data chan interface{}
}

func (ms *MetadataStream) Read() (retval Metadata, err error) {
	data, ok := <-ms.data
	if !ok {
		err = io.EOF
		return
	}
	retval = data.(Metadata)
	return
}

func (ms *MetadataStream) Close() {
	ms.me.pubsub.Unsub(ms.data)
}