mirror of
https://github.com/classilla/tenfourfox.git
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83 lines
2.9 KiB
C++
83 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_CONTAINERPARSER_H_
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#define MOZILLA_CONTAINERPARSER_H_
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#include "mozilla/RefPtr.h"
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#include "nsString.h"
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#include "MediaResource.h"
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namespace mozilla {
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class MediaByteBuffer;
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class SourceBufferResource;
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class ContainerParser {
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public:
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explicit ContainerParser(const nsACString& aType);
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virtual ~ContainerParser();
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// Return true if aData starts with an initialization segment.
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// The base implementation exists only for debug logging and is expected
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// to be called first from the overriding implementation.
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virtual bool IsInitSegmentPresent(MediaByteBuffer* aData);
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// Return true if aData starts with a media segment.
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// The base implementation exists only for debug logging and is expected
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// to be called first from the overriding implementation.
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virtual bool IsMediaSegmentPresent(MediaByteBuffer* aData);
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// Parse aData to extract the start and end frame times from the media
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// segment. aData may not start on a parser sync boundary. Return true
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// if aStart and aEnd have been updated.
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virtual bool ParseStartAndEndTimestamps(MediaByteBuffer* aData,
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int64_t& aStart, int64_t& aEnd);
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// Compare aLhs and rHs, considering any error that may exist in the
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// timestamps from the format's base representation. Return true if aLhs
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// == aRhs within the error epsilon.
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bool TimestampsFuzzyEqual(int64_t aLhs, int64_t aRhs);
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virtual int64_t GetRoundingError();
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MediaByteBuffer* InitData();
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bool HasInitData()
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{
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return mHasInitData;
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}
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// Return true if a complete initialization segment has been passed
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// to ParseStartAndEndTimestamps(). The calls below to retrieve
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// MediaByteRanges will be valid from when this call first succeeds.
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bool HasCompleteInitData();
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// Returns the byte range of the first complete init segment, or an empty
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// range if not complete.
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MediaByteRange InitSegmentRange();
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// Returns the byte range of the first complete media segment header,
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// or an empty range if not complete.
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MediaByteRange MediaHeaderRange();
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// Returns the byte range of the first complete media segment or an empty
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// range if not complete.
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MediaByteRange MediaSegmentRange();
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static ContainerParser* CreateForMIMEType(const nsACString& aType);
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protected:
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RefPtr<MediaByteBuffer> mInitData;
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RefPtr<SourceBufferResource> mResource;
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bool mHasInitData;
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MediaByteRange mCompleteInitSegmentRange;
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MediaByteRange mCompleteMediaHeaderRange;
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MediaByteRange mCompleteMediaSegmentRange;
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const nsCString mType;
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};
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} // namespace mozilla
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#endif /* MOZILLA_CONTAINERPARSER_H_ */
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