dom/media/mediasource/ContainerParser.h
author Nathan Froyd <froydnj@mozilla.com>
Sun, 18 Oct 2015 01:24:48 -0400
changeset 268184 e8c7dfe727cd970e2c3294934e2927b14143c205
parent 266639 41dea9df27ed995f8315ab4318c187a617937664
child 321409 2d85e1b19808d93ce58072b48a7fbd6bd2f525d9
permissions -rw-r--r--
Bug 1207245 - part 6 - rename nsRefPtr<T> to RefPtr<T>; r=ehsan; a=Tomcat The bulk of this commit was generated with a script, executed at the top level of a typical source code checkout. The only non-machine-generated part was modifying MFBT's moz.build to reflect the new naming. CLOSED TREE makes big refactorings like this a piece of cake. # The main substitution. find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \ xargs perl -p -i -e ' s/nsRefPtr\.h/RefPtr\.h/g; # handle includes s/nsRefPtr ?</RefPtr</g; # handle declarations and variables ' # Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h. perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h # Handle nsRefPtr.h itself, a couple places that define constructors # from nsRefPtr, and code generators specially. We do this here, rather # than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename # things like nsRefPtrHashtable. perl -p -i -e 's/nsRefPtr/RefPtr/g' \ mfbt/nsRefPtr.h \ xpcom/glue/nsCOMPtr.h \ xpcom/base/OwningNonNull.h \ ipc/ipdl/ipdl/lower.py \ ipc/ipdl/ipdl/builtin.py \ dom/bindings/Codegen.py \ python/lldbutils/lldbutils/utils.py # In our indiscriminate substitution above, we renamed # nsRefPtrGetterAddRefs, the class behind getter_AddRefs. Fix that up. find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \ xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g' if [ -d .git ]; then git mv mfbt/nsRefPtr.h mfbt/RefPtr.h else hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h fi

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef MOZILLA_CONTAINERPARSER_H_
#define MOZILLA_CONTAINERPARSER_H_

#include "mozilla/RefPtr.h"
#include "nsString.h"
#include "MediaResource.h"

namespace mozilla {

class MediaByteBuffer;
class SourceBufferResource;

class ContainerParser {
public:
  explicit ContainerParser(const nsACString& aType);
  virtual ~ContainerParser();

  // Return true if aData starts with an initialization segment.
  // The base implementation exists only for debug logging and is expected
  // to be called first from the overriding implementation.
  virtual bool IsInitSegmentPresent(MediaByteBuffer* aData);

  // Return true if aData starts with a media segment.
  // The base implementation exists only for debug logging and is expected
  // to be called first from the overriding implementation.
  virtual bool IsMediaSegmentPresent(MediaByteBuffer* aData);

  // Parse aData to extract the start and end frame times from the media
  // segment.  aData may not start on a parser sync boundary.  Return true
  // if aStart and aEnd have been updated.
  virtual bool ParseStartAndEndTimestamps(MediaByteBuffer* aData,
                                          int64_t& aStart, int64_t& aEnd);

  // Compare aLhs and rHs, considering any error that may exist in the
  // timestamps from the format's base representation.  Return true if aLhs
  // == aRhs within the error epsilon.
  bool TimestampsFuzzyEqual(int64_t aLhs, int64_t aRhs);

  virtual int64_t GetRoundingError();

  MediaByteBuffer* InitData();

  bool HasInitData()
  {
    return mHasInitData;
  }

  // Return true if a complete initialization segment has been passed
  // to ParseStartAndEndTimestamps(). The calls below to retrieve
  // MediaByteRanges will be valid from when this call first succeeds.
  bool HasCompleteInitData();
  // Returns the byte range of the first complete init segment, or an empty
  // range if not complete.
  MediaByteRange InitSegmentRange();
  // Returns the byte range of the first complete media segment header,
  // or an empty range if not complete.
  MediaByteRange MediaHeaderRange();
  // Returns the byte range of the first complete media segment or an empty
  // range if not complete.
  MediaByteRange MediaSegmentRange();

  static ContainerParser* CreateForMIMEType(const nsACString& aType);

protected:
  RefPtr<MediaByteBuffer> mInitData;
  RefPtr<SourceBufferResource> mResource;
  bool mHasInitData;
  MediaByteRange mCompleteInitSegmentRange;
  MediaByteRange mCompleteMediaHeaderRange;
  MediaByteRange mCompleteMediaSegmentRange;
  const nsCString mType;
};

} // namespace mozilla

#endif /* MOZILLA_CONTAINERPARSER_H_ */