OSLO, Dec 1 (Reuters) - Struggling Swedish streaming company Viaplay on Friday said it planned to raise 4 billion Swedish crowns ($380 million) in new equity, write down 2 billion crowns in debt and renegotiate the terms of debt totalling 14.6 billion crowns. (Reporting by Marta Frckowiak and Terje Solsvik; Editing by Tom Hogue)