// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

library fuchsia.media.drm;

/// Standard error codes for DRM related protocols. Many of the error code names
/// originate from the [`W3C Encrypted Media Extensions`] specification to cover
/// common CDM exception cases.
///
/// [`W3C Encrypted Media Extensions`]:
///   https://www.w3.org/TR/encrypted-media
enum Error {
    // Encrypted Media Extension error codes
    /// An error that occurs when the client provides invalid parameter data to
    /// the server, such as an invalid license response message.
    TYPE = 1;
    /// An error that occurs when a requested operation is not supported by the
    /// CDM, such as a license generation request with an unknown initialization
    /// data type.
    NOT_SUPPORTED = 2;
    /// An error that occurs when the CDM is not in a proper state to perform
    /// the requested operation, such as calling
    /// [`LicenseSession.GenerateLicenseRequest`] when the [`LicenseSession`]
    /// has already started the license release process.
    INVALID_STATE = 3;
    /// An error that occurs when a requested action would exceed allowable
    /// limits, such as attempting to load an already opened session. 
    QUOTA_EXCEEDED = 4;

    // Additional common error codes for DRM systems (100)
    /// An internal, unexpected error that is not actionable by the client.
    INTERNAL = 100;
    /// An error that occurs when the CDM is not usable because it requires
    /// additional provisioning.
    NOT_PROVISIONED = 101;
};