extract_async

Description:

public virtual bool extract_async (string uri, uint timeout_in_ms) throws Error

Queues uri for metadata discovery.

When discovery is completed, the done signal is emitted on this.

Parameters:

this

MetadataExtractor object to use for discovery
uri

URI to gather metadata for
timeout_in_ms

Timeout in miliseconds.

Returns:

true if uri was successfully queued, false otherwise.