diff options
Diffstat (limited to 'libs/appleutility/CoreAudio/AudioFile/AFPublic/CompressedPacketTable.h')
| -rw-r--r-- | libs/appleutility/CoreAudio/AudioFile/AFPublic/CompressedPacketTable.h | 58 |
1 files changed, 29 insertions, 29 deletions
diff --git a/libs/appleutility/CoreAudio/AudioFile/AFPublic/CompressedPacketTable.h b/libs/appleutility/CoreAudio/AudioFile/AFPublic/CompressedPacketTable.h index 47e28ca499..8ca0ccfa50 100644 --- a/libs/appleutility/CoreAudio/AudioFile/AFPublic/CompressedPacketTable.h +++ b/libs/appleutility/CoreAudio/AudioFile/AFPublic/CompressedPacketTable.h @@ -2,14 +2,14 @@ File: CompressedPacketTable.h Abstract: Part of CoreAudio Utility Classes Version: 1.1 - + Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Inc. ("Apple") in consideration of your agreement to the following terms, and your use, installation, modification or redistribution of this Apple software constitutes acceptance of these terms. If you do not agree with these terms, please do not use, install, modify or redistribute this Apple software. - + In consideration of your agreement to abide by the following terms, and subject to these terms, Apple grants you a personal, non-exclusive license, under Apple's copyrights in this original Apple software (the @@ -25,13 +25,13 @@ implied, are granted by Apple herein, including but not limited to any patent rights that may be infringed by your derivative works or by other works in which the Apple Software may be incorporated. - + The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS. - + IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS @@ -40,9 +40,9 @@ AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - + Copyright (C) 2014 Apple Inc. All Rights Reserved. - + */ #include <iterator> #include <vector> @@ -72,17 +72,17 @@ class CompressedPacketTable public: CompressedPacketTable(UInt32 inFramesPerPacket) : mSize(0), mFramesPerPacket(inFramesPerPacket) {} ~CompressedPacketTable(); - + SInt64 size() const { return mSize; } void push_back(const AudioStreamPacketDescriptionExtended& inDesc); - + const AudioStreamPacketDescriptionExtended operator[](SInt64 inPacketIndex) const; const AudioStreamPacketDescriptionExtended front() const { return (*this)[0]; } const AudioStreamPacketDescriptionExtended back() const { return (*this)[mSize-1]; } - + //SInt64 PacketForByte(SInt64 inByteOffset) const; SInt64 ByteForPacket(SInt64 inPacketIndex) const { return (*this)[inPacketIndex].mStartOffset; } - + class iterator { public: typedef std::input_iterator_tag iterator_category; @@ -90,18 +90,18 @@ public: typedef SInt64 difference_type; typedef AudioStreamPacketDescriptionExtended value_type; typedef value_type& reference; - + iterator() : mTable(NULL), mIndex(0) {} iterator(const CompressedPacketTable* table, SInt64 index) : mTable(table), mIndex(index) {} iterator(const iterator& that) : mTable(that.mTable), mIndex(that.mIndex) {} - + iterator& operator=(const iterator& that) { mTable = that.mTable; mIndex = that.mIndex; return *this; } - + const AudioStreamPacketDescriptionExtended operator*() const { return (*mTable)[mIndex]; } const AudioStreamPacketDescriptionExtended* const operator->() { mValue = (*mTable)[mIndex]; return &mValue; } iterator& operator++() { ++mIndex; return *this; } iterator& operator--() { --mIndex; return *this; } - + SInt64 operator-(const iterator& that) { return mIndex - that.mIndex; } const iterator operator-(SInt64 index) { return iterator(mTable, mIndex - index); } const iterator operator+(SInt64 index) { return iterator(mTable, mIndex + index); } @@ -114,52 +114,52 @@ public: SInt64 mIndex; AudioStreamPacketDescriptionExtended mValue; // in order to support operator-> . }; - + iterator begin() const { return iterator(this, 0); } iterator end() const { return iterator(this, mSize); } - + private: struct TinyContiguousPacketDescription { UInt16 mNextOffset; }; - + struct TinyDiscontiguousPacketDescription : TinyContiguousPacketDescription { UInt16 mDataByteSize; }; - - // There could be a 24 bit packet description. But ALAC is who usually needs SmallContiguousPacketDescription and - // it already uses 8x fewer packet descriptions than AAC due to the mFramesPerPacket being 8x greater. + + // There could be a 24 bit packet description. But ALAC is who usually needs SmallContiguousPacketDescription and + // it already uses 8x fewer packet descriptions than AAC due to the mFramesPerPacket being 8x greater. // So there isn't as great a need for saving space. 4 bytes per packet is OK for ALAC. - + struct SmallContiguousPacketDescription { UInt32 mNextOffset; }; - + struct SmallDiscontiguousPacketDescription : SmallContiguousPacketDescription { UInt16 mDataByteSize; }; - + struct BigContiguousPacketDescription { UInt64 mNextOffset; }; - + struct BigDiscontiguousPacketDescription : BigContiguousPacketDescription { UInt32 mDataByteSize; }; - + struct PacketBase { SInt64 mBaseOffset; UInt8 mDescType; void* mDescs; }; - + enum { kTinyContiguousPacketDescription, kTinyDiscontiguousPacketDescription, @@ -171,14 +171,14 @@ private: }; static const UInt32 kShift; static const UInt32 kMask; - + bool isContiguous(PacketBase& base); bool hasVariableFrames(PacketBase& base); UInt32 largestPacket(PacketBase& base); - + void Compress(PacketBase& base); -private: +private: std::vector<PacketBase> mBases; UInt64 mSize; UInt32 mFramesPerPacket; |