Properties:
| Name | Value | Type | Description | 
|---|---|---|---|
RELOAD | 
            
            
                reload | string | Allow codec switching which will always involve reloading
the . | 
        
SMOOTH | 
            
            
                smooth | string | Allow codec switching; determine if SourceBuffer.changeType
is available and attempt to use this first, but fall back to reloading
MediaSource if not available.
Note: Some devices that support SourceBuffer.changeType can
become stuck in a pause state. |