1/*
2 * Copyright (C) 2017 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#if ENABLE(ENCRYPTED_MEDIA)
29
30#include "CDMKeyStatus.h"
31#include "CDMMessageType.h"
32#include "CDMSessionType.h"
33#include <utility>
34#include <wtf/Forward.h>
35#include <wtf/RefCounted.h>
36#include <wtf/TypeCasts.h>
37
38namespace WebCore {
39
40class SharedBuffer;
41
42class CDMInstanceSession;
43struct CDMKeySystemConfiguration;
44
45class CDMInstance : public RefCounted<CDMInstance> {
46public:
47 virtual ~CDMInstance() = default;
48
49 enum class ImplementationType {
50 Mock,
51 ClearKey,
52 FairPlayStreaming,
53 };
54 virtual ImplementationType implementationType() const = 0;
55
56 enum SuccessValue {
57 Failed,
58 Succeeded,
59 };
60
61 virtual SuccessValue initializeWithConfiguration(const CDMKeySystemConfiguration&) = 0;
62 virtual SuccessValue setDistinctiveIdentifiersAllowed(bool) = 0;
63 virtual SuccessValue setPersistentStateAllowed(bool) = 0;
64 virtual SuccessValue setServerCertificate(Ref<SharedBuffer>&&) = 0;
65 virtual SuccessValue setStorageDirectory(const String&) = 0;
66 virtual const String& keySystem() const = 0;
67 virtual RefPtr<CDMInstanceSession> createSession() = 0;
68
69 enum class HDCPStatus {
70 Unknown,
71 Valid,
72 OutputRestricted,
73 OutputDownscaled,
74 };
75 virtual SuccessValue setHDCPStatus(HDCPStatus) { return Failed; }
76};
77
78} // namespace WebCore
79
80#define SPECIALIZE_TYPE_TRAITS_CDM_INSTANCE(ToValueTypeName, ImplementationTypeName) \
81SPECIALIZE_TYPE_TRAITS_BEGIN(ToValueTypeName) \
82static bool isType(const WebCore::CDMInstance& instance) { return instance.implementationType() == ImplementationTypeName; } \
83SPECIALIZE_TYPE_TRAITS_END()
84
85#endif
86