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105 lines
3.6 KiB
C++
105 lines
3.6 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 MOZILLA_SOURCEBUFFERRESOURCE_H_
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#define MOZILLA_SOURCEBUFFERRESOURCE_H_
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#include "MediaCache.h"
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#include "MediaResource.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/ReentrantMonitor.h"
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#include "nsCOMPtr.h"
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#include "nsError.h"
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#include "nsIPrincipal.h"
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#include "nsStringGlue.h"
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#include "nsTArray.h"
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#include "nscore.h"
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class nsIStreamListener;
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namespace mozilla {
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class MediaDecoder;
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namespace dom {
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class SourceBuffer;
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} // namespace dom
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class SourceBufferResource MOZ_FINAL : public MediaResource
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{
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public:
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SourceBufferResource(nsIPrincipal* aPrincipal,
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const nsACString& aType);
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~SourceBufferResource();
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virtual nsresult Close() MOZ_OVERRIDE;
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virtual void Suspend(bool aCloseImmediately) MOZ_OVERRIDE {}
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virtual void Resume() MOZ_OVERRIDE {}
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virtual already_AddRefed<nsIPrincipal> GetCurrentPrincipal() MOZ_OVERRIDE
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{
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return nsCOMPtr<nsIPrincipal>(mPrincipal).forget();
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}
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virtual already_AddRefed<MediaResource> CloneData(MediaDecoder* aDecoder) MOZ_OVERRIDE
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{
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return nullptr;
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}
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virtual void SetReadMode(MediaCacheStream::ReadMode aMode) MOZ_OVERRIDE {}
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virtual void SetPlaybackRate(uint32_t aBytesPerSecond) MOZ_OVERRIDE {}
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virtual nsresult Read(char* aBuffer, uint32_t aCount, uint32_t* aBytes) MOZ_OVERRIDE;
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virtual nsresult ReadAt(int64_t aOffset, char* aBuffer, uint32_t aCount, uint32_t* aBytes) MOZ_OVERRIDE;
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virtual nsresult Seek(int32_t aWhence, int64_t aOffset) MOZ_OVERRIDE;
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virtual void StartSeekingForMetadata() MOZ_OVERRIDE { }
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virtual void EndSeekingForMetadata() MOZ_OVERRIDE {}
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virtual int64_t Tell() MOZ_OVERRIDE { return mOffset; }
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virtual void Pin() MOZ_OVERRIDE {}
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virtual void Unpin() MOZ_OVERRIDE {}
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virtual double GetDownloadRate(bool* aIsReliable) MOZ_OVERRIDE { return 0; }
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virtual int64_t GetLength() MOZ_OVERRIDE { return mInputBuffer.Length(); }
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virtual int64_t GetNextCachedData(int64_t aOffset) MOZ_OVERRIDE { return aOffset; }
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virtual int64_t GetCachedDataEnd(int64_t aOffset) MOZ_OVERRIDE { return GetLength(); }
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virtual bool IsDataCachedToEndOfResource(int64_t aOffset) MOZ_OVERRIDE { return true; }
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virtual bool IsSuspendedByCache() MOZ_OVERRIDE { return false; }
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virtual bool IsSuspended() MOZ_OVERRIDE { return false; }
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virtual nsresult ReadFromCache(char* aBuffer, int64_t aOffset, uint32_t aCount) MOZ_OVERRIDE;
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virtual bool IsTransportSeekable() MOZ_OVERRIDE { return true; }
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virtual nsresult Open(nsIStreamListener** aStreamListener) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
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virtual nsresult GetCachedRanges(nsTArray<MediaByteRange>& aRanges) MOZ_OVERRIDE
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{
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aRanges.AppendElement(MediaByteRange(0, GetLength()));
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return NS_OK;
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}
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virtual const nsCString& GetContentType() const MOZ_OVERRIDE { return mType; }
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// Used by SourceBuffer.
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void AppendData(const uint8_t* aData, uint32_t aLength);
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void Ended();
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private:
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nsCOMPtr<nsIPrincipal> mPrincipal;
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const nsAutoCString mType;
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// Provides synchronization between SourceBuffers and InputAdapters.
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// Protects all of the member variables below. Read() will await a
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// Notify() (from Seek, AppendData, Ended, or Close) when insufficient
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// data is available in mData.
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ReentrantMonitor mMonitor;
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nsTArray<uint8_t> mInputBuffer;
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int64_t mOffset;
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bool mClosed;
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bool mEnded;
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};
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} // namespace mozilla
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#endif /* MOZILLA_SOURCEBUFFERRESOURCE_H_ */
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