// You can optionally provide these field(s).
videoCampaign.setStartDate(new DateTime().plusDays(1).toString("yyyyMMdd"));
videoCampaign.setBudgetId(budgetId);
// Create operations.
VideoCampaignOperation operation = new VideoCampaignOperation();
operation.setOperand(videoCampaign);
operation.setOperator(Operator.ADD);
VideoCampaignOperation[] operations = new VideoCampaignOperation[] {operation};
// Add video campaigns.
VideoCampaignReturnValue result = videoCampaignService.mutate(operations);