1/* 2 * Copyright (C) 2013 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#include "config.h" 27 28#if ENABLE(ENCRYPTED_MEDIA_V2) 29 30#include "CDM.h" 31 32#include "CDMPrivate.h" 33#include "MediaKeyError.h" 34#include "MediaKeys.h" 35#include <wtf/text/WTFString.h> 36 37#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1090 38#include "CDMPrivateAVFoundation.h" 39#endif 40 41namespace WebCore { 42 43struct CDMFactory { 44 WTF_MAKE_NONCOPYABLE(CDMFactory); WTF_MAKE_FAST_ALLOCATED; 45public: 46 CDMFactory(CreateCDM constructor, CDMSupportsKeySystem supportsKeySystem, CDMSupportsKeySystemAndMimeType supportsKeySystemAndMimeType) 47 : constructor(constructor) 48 , supportsKeySystem(supportsKeySystem) 49 , supportsKeySystemAndMimeType(supportsKeySystemAndMimeType) 50 { 51 } 52 53 CreateCDM constructor; 54 CDMSupportsKeySystem supportsKeySystem; 55 CDMSupportsKeySystemAndMimeType supportsKeySystemAndMimeType; 56}; 57 58static Vector<CDMFactory*>& installedCDMFactories() 59{ 60 DEFINE_STATIC_LOCAL(Vector<CDMFactory*>, cdms, ()); 61 static bool queriedCDMs = false; 62 if (!queriedCDMs) { 63 queriedCDMs = true; 64 65 // FIXME: initialize specific UA CDMs. http://webkit.org/b/109318, http://webkit.org/b/109320 66#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1090 67 cdms.append(new CDMFactory(CDMPrivateAVFoundation::create, CDMPrivateAVFoundation::supportsKeySystem, CDMPrivateAVFoundation::supportsKeySystemAndMimeType)); 68#endif 69 70 } 71 72 return cdms; 73} 74 75void CDM::registerCDMFactory(CreateCDM constructor, CDMSupportsKeySystem supportsKeySystem, CDMSupportsKeySystemAndMimeType supportsKeySystemAndMimeType) 76{ 77 installedCDMFactories().append(new CDMFactory(constructor, supportsKeySystem, supportsKeySystemAndMimeType)); 78} 79 80static CDMFactory* CDMFactoryForKeySystem(const String& keySystem) 81{ 82 Vector<CDMFactory*>& cdmFactories = installedCDMFactories(); 83 for (size_t i = 0; i < cdmFactories.size(); ++i) { 84 if (cdmFactories[i]->supportsKeySystem(keySystem)) 85 return cdmFactories[i]; 86 } 87 return 0; 88} 89 90bool CDM::supportsKeySystem(const String& keySystem) 91{ 92 return CDMFactoryForKeySystem(keySystem); 93} 94 95bool CDM::keySystemSupportsMimeType(const String& keySystem, const String& mimeType) 96{ 97 if (CDMFactory* factory = CDMFactoryForKeySystem(keySystem)) 98 return factory->supportsKeySystemAndMimeType(keySystem, mimeType); 99 return false; 100} 101 102PassOwnPtr<CDM> CDM::create(const String& keySystem) 103{ 104 if (!supportsKeySystem(keySystem)) 105 return nullptr; 106 107 return adoptPtr(new CDM(keySystem)); 108} 109 110CDM::CDM(const String& keySystem) 111 : m_keySystem(keySystem) 112 , m_client(0) 113{ 114 m_private = CDMFactoryForKeySystem(keySystem)->constructor(this); 115} 116 117CDM::~CDM() 118{ 119} 120 121bool CDM::supportsMIMEType(const String& mimeType) const 122{ 123 return m_private->supportsMIMEType(mimeType); 124} 125 126PassOwnPtr<CDMSession> CDM::createSession() 127{ 128 return m_private->createSession(); 129} 130 131MediaPlayer* CDM::mediaPlayer() const 132{ 133 if (!m_client) 134 return 0; 135 return m_client->cdmMediaPlayer(this); 136} 137 138} 139 140#endif // ENABLE(ENCRYPTED_MEDIA_V2) 141