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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef SamplesWaitingForKey_h_
#define SamplesWaitingForKey_h_
#include "mozilla/TaskQueue.h"
#include "PlatformDecoderModule.h"
namespace mozilla {
typedef nsTArray<uint8_t> CencKeyId;
class CDMProxy;
// Encapsulates the task of waiting for the CDMProxy to have the necessary
// keys to decrypt a given sample.
class SamplesWaitingForKey {
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(SamplesWaitingForKey)
explicit SamplesWaitingForKey(MediaDataDecoder* aDecoder,
MediaDataDecoderCallback* aCallback,
TaskQueue* aTaskQueue,
CDMProxy* aProxy);
// Returns true if we need to wait for a key to become usable.
// Will callback MediaDataDecoder::Input(aSample) on mDecoder once the
// sample is ready to be decrypted. The order of input samples is
// preserved.
bool WaitIfKeyNotUsable(MediaRawData* aSample);
void NotifyUsable(const CencKeyId& aKeyId);
void Flush();
void BreakCycles();
protected:
~SamplesWaitingForKey();
private:
Mutex mMutex;
RefPtr<MediaDataDecoder> mDecoder;
MediaDataDecoderCallback* mDecoderCallback;
RefPtr<TaskQueue> mTaskQueue;
RefPtr<CDMProxy> mProxy;
nsTArray<RefPtr<MediaRawData>> mSamples;
};
} // namespace mozilla
#endif // SamplesWaitingForKey_h_
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