1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this file, 5 * You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #include "mozilla/EMEUtils.h" 8 9 #include "jsfriendapi.h" 10 #include "mozilla/dom/UnionTypes.h" 11 12 namespace mozilla { 13 GetEMELog()14LogModule* GetEMELog() { 15 static LazyLogModule log("EME"); 16 return log; 17 } 18 GetEMEVerboseLog()19LogModule* GetEMEVerboseLog() { 20 static LazyLogModule log("EMEV"); 21 return log; 22 } 23 GetArrayBufferViewOrArrayBufferData(const dom::ArrayBufferViewOrArrayBuffer & aBufferOrView)24ArrayData GetArrayBufferViewOrArrayBufferData( 25 const dom::ArrayBufferViewOrArrayBuffer& aBufferOrView) { 26 MOZ_ASSERT(aBufferOrView.IsArrayBuffer() || 27 aBufferOrView.IsArrayBufferView()); 28 JS::AutoCheckCannotGC nogc; 29 if (aBufferOrView.IsArrayBuffer()) { 30 const dom::ArrayBuffer& buffer = aBufferOrView.GetAsArrayBuffer(); 31 buffer.ComputeState(); 32 return ArrayData(buffer.Data(), buffer.Length()); 33 } else if (aBufferOrView.IsArrayBufferView()) { 34 const dom::ArrayBufferView& bufferview = 35 aBufferOrView.GetAsArrayBufferView(); 36 bufferview.ComputeState(); 37 return ArrayData(bufferview.Data(), bufferview.Length()); 38 } 39 return ArrayData(nullptr, 0); 40 } 41 CopyArrayBufferViewOrArrayBufferData(const dom::ArrayBufferViewOrArrayBuffer & aBufferOrView,nsTArray<uint8_t> & aOutData)42void CopyArrayBufferViewOrArrayBufferData( 43 const dom::ArrayBufferViewOrArrayBuffer& aBufferOrView, 44 nsTArray<uint8_t>& aOutData) { 45 JS::AutoCheckCannotGC nogc; 46 ArrayData data = GetArrayBufferViewOrArrayBufferData(aBufferOrView); 47 aOutData.Clear(); 48 if (!data.IsValid()) { 49 return; 50 } 51 aOutData.AppendElements(data.mData, data.mLength); 52 } 53 IsClearkeyKeySystem(const nsAString & aKeySystem)54bool IsClearkeyKeySystem(const nsAString& aKeySystem) { 55 return aKeySystem.EqualsLiteral(EME_KEY_SYSTEM_CLEARKEY); 56 } 57 IsWidevineKeySystem(const nsAString & aKeySystem)58bool IsWidevineKeySystem(const nsAString& aKeySystem) { 59 return aKeySystem.EqualsLiteral(EME_KEY_SYSTEM_WIDEVINE); 60 } 61 KeySystemToGMPName(const nsAString & aKeySystem)62nsString KeySystemToGMPName(const nsAString& aKeySystem) { 63 if (IsClearkeyKeySystem(aKeySystem)) { 64 return NS_LITERAL_STRING("gmp-clearkey"); 65 } 66 if (IsWidevineKeySystem(aKeySystem)) { 67 return NS_LITERAL_STRING("gmp-widevinecdm"); 68 } 69 MOZ_ASSERT(false, "We should only call this for known GMPs"); 70 return EmptyString(); 71 } 72 73 } // namespace mozilla 74