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57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
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/* -*- 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 SamplesWaitingForKey_h_
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#define SamplesWaitingForKey_h_
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#include "mozilla/TaskQueue.h"
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#include "PlatformDecoderModule.h"
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namespace mozilla {
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typedef nsTArray<uint8_t> CencKeyId;
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class CDMProxy;
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// Encapsulates the task of waiting for the CDMProxy to have the necessary
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// keys to decrypt a given sample.
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class SamplesWaitingForKey {
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(SamplesWaitingForKey)
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explicit SamplesWaitingForKey(MediaDataDecoder* aDecoder,
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MediaDataDecoderCallback* aCallback,
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TaskQueue* aTaskQueue,
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CDMProxy* aProxy);
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// Returns true if we need to wait for a key to become usable.
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// Will callback MediaDataDecoder::Input(aSample) on mDecoder once the
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// sample is ready to be decrypted. The order of input samples is
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// preserved.
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bool WaitIfKeyNotUsable(MediaRawData* aSample);
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void NotifyUsable(const CencKeyId& aKeyId);
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void Flush();
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void BreakCycles();
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protected:
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~SamplesWaitingForKey();
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private:
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Mutex mMutex;
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RefPtr<MediaDataDecoder> mDecoder;
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MediaDataDecoderCallback* mDecoderCallback;
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RefPtr<TaskQueue> mTaskQueue;
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RefPtr<CDMProxy> mProxy;
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nsTArray<RefPtr<MediaRawData>> mSamples;
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};
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} // namespace mozilla
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#endif // SamplesWaitingForKey_h_
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