mirror of
https://github.com/roytam1/palemoon27.git
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trav90
90 lines
2.9 KiB
C++
90 lines
2.9 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_SOURCEBUFFERCONTENTMANAGER_H_
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#define MOZILLA_SOURCEBUFFERCONTENTMANAGER_H_
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#include "MediaData.h"
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#include "MediaPromise.h"
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#include "MediaSourceDecoder.h"
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#include "SourceBuffer.h"
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#include "TimeUnits.h"
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#include "nsString.h"
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namespace mozilla {
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using media::TimeUnit;
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using media::TimeIntervals;
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class SourceBufferContentManager {
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(SourceBufferContentManager);
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typedef MediaPromise<bool, nsresult, /* IsExclusive = */ true> AppendPromise;
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static already_AddRefed<SourceBufferContentManager>
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CreateManager(MediaSourceDecoder* aParentDecoder, const nsACString& aType);
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// Append data to the current decoder. Also responsible for calling
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// NotifyDataArrived on the decoder to keep buffered range computation up
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// to date. Returns false if the append failed.
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virtual nsRefPtr<AppendPromise>
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AppendData(MediaLargeByteBuffer* aData, TimeUnit aTimestampOffset /* microseconds */) = 0;
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// Abort any pending AppendData.
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virtual void AbortAppendData() = 0;
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// Run MSE Reset Parser State Algorithm.
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// 3.5.2 Reset Parser State
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// http://w3c.github.io/media-source/#sourcebuffer-reset-parser-state
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virtual void ResetParserState() = 0;
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// Runs MSE range removal algorithm.
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// http://w3c.github.io/media-source/#sourcebuffer-coded-frame-removal
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virtual bool RangeRemoval(TimeUnit aStart, TimeUnit aEnd) = 0;
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enum class EvictDataResult : int8_t
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{
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NO_DATA_EVICTED,
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DATA_EVICTED,
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CANT_EVICT,
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};
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// Evicts data up to aPlaybackTime. aThreshold is used to
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// bound the data being evicted. It will not evict more than aThreshold
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// bytes. aBufferStartTime contains the new start time of the data after the
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// eviction.
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virtual EvictDataResult
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EvictData(TimeUnit aPlaybackTime, uint32_t aThreshold, TimeUnit* aBufferStartTime) = 0;
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// Evicts data up to aTime.
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virtual void EvictBefore(TimeUnit aTime) = 0;
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// Returns the buffered range currently managed.
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// This may be called on any thread.
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// Buffered must conform to http://w3c.github.io/media-source/index.html#widl-SourceBuffer-buffered
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virtual media::TimeIntervals Buffered() = 0;
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// Return the size of the data managed by this SourceBufferContentManager.
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virtual int64_t GetSize() = 0;
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// Indicate that the MediaSource parent object got into "ended" state.
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virtual void Ended() = 0;
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// The parent SourceBuffer is about to be destroyed.
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virtual void Detach() = 0;
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#if defined(DEBUG)
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virtual void Dump(const char* aPath) { }
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#endif
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protected:
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virtual ~SourceBufferContentManager() { }
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};
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} // namespace mozilla
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#endif /* MOZILLA_SOURCEBUFFERCONTENTMANAGER_H_ */
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