зеркало из https://github.com/mozilla/gecko-dev.git
78 строки
2.4 KiB
C++
78 строки
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 ChannelMediaDecoder_h_
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#define ChannelMediaDecoder_h_
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#include "MediaDecoder.h"
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#include "MediaResourceCallback.h"
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class nsIChannel;
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class nsIStreamListener;
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namespace mozilla {
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class ChannelMediaDecoder : public MediaDecoder
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{
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// Used to register with MediaResource to receive notifications which will
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// be forwarded to MediaDecoder.
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class ResourceCallback : public MediaResourceCallback
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{
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// Throttle calls to MediaDecoder::NotifyDataArrived()
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// to be at most once per 500ms.
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static const uint32_t sDelay = 500;
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public:
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explicit ResourceCallback(AbstractThread* aMainThread);
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// Start to receive notifications from ResourceCallback.
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void Connect(ChannelMediaDecoder* aDecoder);
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// Called upon shutdown to stop receiving notifications.
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void Disconnect();
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private:
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/* MediaResourceCallback functions */
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MediaDecoderOwner* GetMediaOwner() const override;
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void SetInfinite(bool aInfinite) override;
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void NotifyNetworkError() override;
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void NotifyDataArrived() override;
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void NotifyDataEnded(nsresult aStatus) override;
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void NotifyPrincipalChanged() override;
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void NotifySuspendedStatusChanged() override;
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void NotifyBytesConsumed(int64_t aBytes, int64_t aOffset) override;
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static void TimerCallback(nsITimer* aTimer, void* aClosure);
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// The decoder to send notifications. Main-thread only.
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ChannelMediaDecoder* mDecoder = nullptr;
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nsCOMPtr<nsITimer> mTimer;
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bool mTimerArmed = false;
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const RefPtr<AbstractThread> mAbstractMainThread;
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};
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RefPtr<ResourceCallback> mResourceCallback;
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public:
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explicit ChannelMediaDecoder(MediaDecoderInit& aInit);
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void Shutdown() override;
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// Create a new decoder of the same type as this one.
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// Subclasses must implement this.
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virtual ChannelMediaDecoder* Clone(MediaDecoderInit& aInit) = 0;
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nsresult Load(nsIChannel* aChannel,
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bool aIsPrivateBrowsing,
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nsIStreamListener** aStreamListener);
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nsresult Load(MediaResource* aOriginal);
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private:
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nsresult OpenResource(nsIStreamListener** aStreamListener);
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};
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} // namespace mozilla
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#endif // ChannelMediaDecoder_h_
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