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83 lines
2.6 KiB
C++
83 lines
2.6 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_SUBBUFFERDECODER_H_
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#define MOZILLA_SUBBUFFERDECODER_H_
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#include "BufferDecoder.h"
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#include "SourceBufferResource.h"
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namespace mozilla {
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class MediaSourceDecoder;
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class SubBufferDecoder : public BufferDecoder
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{
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public:
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// This class holds a weak pointer to MediaResource. It's the responsibility
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// of the caller to manage the memory of the MediaResource object.
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SubBufferDecoder(MediaResource* aResource, MediaSourceDecoder* aParentDecoder)
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: BufferDecoder(aResource), mParentDecoder(aParentDecoder), mReader(nullptr)
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{
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}
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void SetReader(MediaDecoderReader* aReader)
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{
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MOZ_ASSERT(!mReader);
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mReader = aReader;
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}
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MediaDecoderReader* GetReader()
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{
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return mReader;
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}
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virtual ReentrantMonitor& GetReentrantMonitor() MOZ_OVERRIDE;
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virtual bool OnStateMachineThread() const MOZ_OVERRIDE;
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virtual bool OnDecodeThread() const MOZ_OVERRIDE;
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virtual SourceBufferResource* GetResource() const MOZ_OVERRIDE;
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virtual void SetMediaDuration(int64_t aDuration) MOZ_OVERRIDE;
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virtual void UpdateEstimatedMediaDuration(int64_t aDuration) MOZ_OVERRIDE;
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virtual void SetMediaSeekable(bool aMediaSeekable) MOZ_OVERRIDE;
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virtual void SetTransportSeekable(bool aTransportSeekable) MOZ_OVERRIDE;
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virtual layers::ImageContainer* GetImageContainer() MOZ_OVERRIDE;
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void NotifyDataArrived(const char* aBuffer, uint32_t aLength, int64_t aOffset)
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{
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mReader->NotifyDataArrived(aBuffer, aLength, aOffset);
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// XXX: Params make no sense to parent decoder as it relates to a
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// specific SubBufferDecoder's data stream. Pass bogus values here to
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// force parent decoder's state machine to recompute end time for
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// infinite length media.
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mParentDecoder->NotifyDataArrived(nullptr, 0, 0);
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}
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nsresult GetBuffered(dom::TimeRanges* aBuffered)
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{
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// XXX: Need mStartTime (from StateMachine) instead of passing 0.
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return mReader->GetBuffered(aBuffered, 0);
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}
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// Given a time convert it into an approximate byte offset from the
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// cached data. Returns -1 if no such value is computable.
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int64_t ConvertToByteOffset(double aTime);
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int64_t GetMediaDuration() MOZ_OVERRIDE
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{
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return mMediaDuration;
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}
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private:
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MediaSourceDecoder* mParentDecoder;
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nsAutoPtr<MediaDecoderReader> mReader;
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int64_t mMediaDuration;
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};
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} // namespace mozilla
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#endif /* MOZILLA_SUBBUFFERDECODER_H_ */
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