зеркало из https://github.com/mozilla/gecko-dev.git
100 строки
2.3 KiB
C++
100 строки
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef GMPUtils_h_
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#define GMPUtils_h_
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#include "mozilla/UniquePtr.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/AbstractThread.h"
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#include "nsStringFwd.h"
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#include "nsTArray.h"
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#include "nsCOMPtr.h"
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#include "nsClassHashtable.h"
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#define CHROMIUM_CDM_API_BACKWARD_COMPAT "chromium-cdm8-host4"
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#define CHROMIUM_CDM_API "chromium-cdm9-host4"
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class nsIFile;
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class nsISimpleEnumerator;
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namespace mozilla {
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template<typename T>
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struct DestroyPolicy
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{
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void operator()(T* aGMPObject) const {
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aGMPObject->Destroy();
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}
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};
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template<typename T>
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using GMPUniquePtr = mozilla::UniquePtr<T, DestroyPolicy<T>>;
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void
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SplitAt(const char* aDelims,
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const nsACString& aInput,
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nsTArray<nsCString>& aOutTokens);
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nsCString
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ToHexString(const nsTArray<uint8_t>& aBytes);
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nsCString
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ToHexString(const uint8_t* aBytes, uint32_t aLength);
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bool
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FileExists(nsIFile* aFile);
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// Enumerate directory entries for a specified path.
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class DirectoryEnumerator {
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public:
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enum Mode {
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DirsOnly, // Enumeration only includes directories.
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FilesAndDirs // Enumeration includes directories and non-directory files.
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};
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DirectoryEnumerator(nsIFile* aPath, Mode aMode);
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already_AddRefed<nsIFile> Next();
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private:
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Mode mMode;
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nsCOMPtr<nsISimpleEnumerator> mIter;
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};
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class GMPInfoFileParser {
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public:
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bool Init(nsIFile* aFile);
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bool Contains(const nsCString& aKey) const;
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nsCString Get(const nsCString& aKey) const;
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private:
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nsClassHashtable<nsCStringHashKey, nsCString> mValues;
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};
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bool
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ReadIntoString(nsIFile* aFile,
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nsCString& aOutDst,
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size_t aMaxLength);
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bool
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HaveGMPFor(const nsCString& aAPI,
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nsTArray<nsCString>&& aTags);
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void
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LogToConsole(const nsAString& aMsg);
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RefPtr<AbstractThread>
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GetGMPAbstractThread();
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// Returns the number of bytes required to store an aWidth x aHeight image in
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// I420 format, padded so that the width and height are multiples of 16.
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size_t
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I420FrameBufferSizePadded(int32_t aWidth, int32_t aHeight);
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} // namespace mozilla
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#endif
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