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src/ALAC/ : Whitespace only.
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@erikd
erikd committed Apr 19, 2014
1 parent a623b52 commit c612bf1
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Showing 19 changed files with 2,531 additions and 2,535 deletions.
162 changes: 80 additions & 82 deletions src/ALAC/ALACAudioTypes.h
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Original file line number Diff line number Diff line change
Expand Up @@ -3,11 +3,11 @@
*
* @APPLE_APACHE_LICENSE_HEADER_START@
*
* Licensed under the Apache License, Version 2.0 (the "License");
* Licensed under the Apache License, Version 2.0 (the "License") ;
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
Expand Down Expand Up @@ -55,100 +55,98 @@ extern "C" {

enum
{
kALAC_UnimplementedError = -4,
kALAC_FileNotFoundError = -43,
kALAC_ParamError = -50,
kALAC_MemFullError = -108,
fALAC_FrameLengthError = -666,
};
kALAC_UnimplementedError = -4,
kALAC_FileNotFoundError = -43,
kALAC_ParamError = -50,
kALAC_MemFullError = -108,
fALAC_FrameLengthError = -666,
} ;

enum
{
kALACFormatAppleLossless = MAKE_MARKER ('a', 'l', 'a', 'c'),
kALACFormatLinearPCM = MAKE_MARKER ('l', 'p', 'c', 'm')
};
kALACFormatAppleLossless = MAKE_MARKER ('a', 'l', 'a', 'c'),
kALACFormatLinearPCM = MAKE_MARKER ('l', 'p', 'c', 'm')
} ;

enum
{
kALACMaxChannels = 8,
kALACMaxEscapeHeaderBytes = 8,
kALACMaxSearches = 16,
kALACMaxCoefs = 16,
kALACDefaultFramesPerPacket = 4096
};
kALACMaxChannels = 8,
kALACMaxEscapeHeaderBytes = 8,
kALACMaxSearches = 16,
kALACMaxCoefs = 16,
kALACDefaultFramesPerPacket = 4096
} ;

typedef uint32_t ALACChannelLayoutTag;
typedef uint32_t ALACChannelLayoutTag ;

enum
{
kALACFormatFlagIsFloat = (1 << 0), // 0x1
kALACFormatFlagIsBigEndian = (1 << 1), // 0x2
kALACFormatFlagIsSignedInteger = (1 << 2), // 0x4
kALACFormatFlagIsPacked = (1 << 3), // 0x8
kALACFormatFlagIsAlignedHigh = (1 << 4), // 0x10
};
kALACFormatFlagIsFloat = (1 << 0), // 0x1
kALACFormatFlagIsBigEndian = (1 << 1), // 0x2
kALACFormatFlagIsSignedInteger = (1 << 2), // 0x4
kALACFormatFlagIsPacked = (1 << 3), // 0x8
kALACFormatFlagIsAlignedHigh = (1 << 4), // 0x10
} ;

enum
{
#if TARGET_RT_BIG_ENDIAN
kALACFormatFlagsNativeEndian = kALACFormatFlagIsBigEndian
kALACFormatFlagsNativeEndian = kALACFormatFlagIsBigEndian
#else
kALACFormatFlagsNativeEndian = 0
kALACFormatFlagsNativeEndian = 0
#endif
};
} ;

// this is required to be an IEEE 64bit float
typedef double alac_float64_t;
typedef double alac_float64_t ;

// These are the Channel Layout Tags used in the Channel Layout Info portion of the ALAC magic cookie
enum
{
kALACChannelLayoutTag_Mono = (100<<16) | 1, // C
kALACChannelLayoutTag_Stereo = (101<<16) | 2, // L R
kALACChannelLayoutTag_MPEG_3_0_B = (113<<16) | 3, // C L R
kALACChannelLayoutTag_MPEG_4_0_B = (116<<16) | 4, // C L R Cs
kALACChannelLayoutTag_MPEG_5_0_D = (120<<16) | 5, // C L R Ls Rs
kALACChannelLayoutTag_MPEG_5_1_D = (124<<16) | 6, // C L R Ls Rs LFE
kALACChannelLayoutTag_AAC_6_1 = (142<<16) | 7, // C L R Ls Rs Cs LFE
kALACChannelLayoutTag_MPEG_7_1_B = (127<<16) | 8 // C Lc Rc L R Ls Rs LFE (doc: IS-13818-7 MPEG2-AAC)
};
{ kALACChannelLayoutTag_Mono = (100 << 16) | 1, // C
kALACChannelLayoutTag_Stereo = (101 << 16) | 2, // L R
kALACChannelLayoutTag_MPEG_3_0_B = (113 << 16) | 3, // C L R
kALACChannelLayoutTag_MPEG_4_0_B = (116 << 16) | 4, // C L R Cs
kALACChannelLayoutTag_MPEG_5_0_D = (120 << 16) | 5, // C L R Ls Rs
kALACChannelLayoutTag_MPEG_5_1_D = (124 << 16) | 6, // C L R Ls Rs LFE
kALACChannelLayoutTag_AAC_6_1 = (142 << 16) | 7, // C L R Ls Rs Cs LFE
kALACChannelLayoutTag_MPEG_7_1_B = (127 << 16) | 8 // C Lc Rc L R Ls Rs LFE (doc: IS-13818-7 MPEG2-AAC)
} ;

// ALAC currently only utilizes these channels layouts. There is a one for one correspondance between a
// given number of channels and one of these layout tags
static const ALACChannelLayoutTag ALACChannelLayoutTags[kALACMaxChannels] =
static const ALACChannelLayoutTag ALACChannelLayoutTags [kALACMaxChannels] =
{
kALACChannelLayoutTag_Mono, // C
kALACChannelLayoutTag_Stereo, // L R
kALACChannelLayoutTag_MPEG_3_0_B, // C L R
kALACChannelLayoutTag_MPEG_4_0_B, // C L R Cs
kALACChannelLayoutTag_MPEG_5_0_D, // C L R Ls Rs
kALACChannelLayoutTag_MPEG_5_1_D, // C L R Ls Rs LFE
kALACChannelLayoutTag_AAC_6_1, // C L R Ls Rs Cs LFE
kALACChannelLayoutTag_MPEG_7_1_B // C Lc Rc L R Ls Rs LFE (doc: IS-13818-7 MPEG2-AAC)
};
kALACChannelLayoutTag_Mono, // C
kALACChannelLayoutTag_Stereo, // L R
kALACChannelLayoutTag_MPEG_3_0_B, // C L R
kALACChannelLayoutTag_MPEG_4_0_B, // C L R Cs
kALACChannelLayoutTag_MPEG_5_0_D, // C L R Ls Rs
kALACChannelLayoutTag_MPEG_5_1_D, // C L R Ls Rs LFE
kALACChannelLayoutTag_AAC_6_1, // C L R Ls Rs Cs LFE
kALACChannelLayoutTag_MPEG_7_1_B // C Lc Rc L R Ls Rs LFE (doc: IS-13818-7 MPEG2-AAC)
} ;

// AudioChannelLayout from CoreAudioTypes.h. We never need the AudioChannelDescription so we remove it
struct ALACAudioChannelLayout
{
ALACChannelLayoutTag mChannelLayoutTag;
uint32_t mChannelBitmap;
uint32_t mNumberChannelDescriptions;
};
typedef struct ALACAudioChannelLayout ALACAudioChannelLayout;
{ ALACChannelLayoutTag mChannelLayoutTag ;
uint32_t mChannelBitmap ;
uint32_t mNumberChannelDescriptions ;
} ;
typedef struct ALACAudioChannelLayout ALACAudioChannelLayout ;

struct AudioFormatDescription
{
alac_float64_t mSampleRate;
uint32_t mFormatID;
uint32_t mFormatFlags;
uint32_t mBytesPerPacket;
uint32_t mFramesPerPacket;
uint32_t mBytesPerFrame;
uint32_t mChannelsPerFrame;
uint32_t mBitsPerChannel;
uint32_t mReserved;
};
typedef struct AudioFormatDescription AudioFormatDescription;
alac_float64_t mSampleRate ;
uint32_t mFormatID ;
uint32_t mFormatFlags ;
uint32_t mBytesPerPacket ;
uint32_t mFramesPerPacket ;
uint32_t mBytesPerFrame ;
uint32_t mChannelsPerFrame ;
uint32_t mBitsPerChannel ;
uint32_t mReserved ;
} ;
typedef struct AudioFormatDescription AudioFormatDescription ;

/* Lossless Definitions */

Expand All @@ -158,39 +156,39 @@ enum
kALACVersion = 0,
kALACCompatibleVersion = kALACVersion,
kALACDefaultFrameSize = 4096
};
} ;

// note: this struct is wrapped in an 'alac' atom in the sample description extension area
// note: in QT movies, it will be further wrapped in a 'wave' atom surrounded by 'frma' and 'term' atoms
typedef struct ALACSpecificConfig
{
uint32_t frameLength;
uint8_t compatibleVersion;
uint8_t bitDepth; // max 32
uint8_t pb; // 0 <= pb <= 255
uint8_t mb;
uint8_t kb;
uint8_t numChannels;
uint16_t maxRun;
uint32_t maxFrameBytes;
uint32_t avgBitRate;
uint32_t sampleRate;
uint32_t frameLength ;
uint8_t compatibleVersion ;
uint8_t bitDepth ; // max 32
uint8_t pb ; // 0 <= pb <= 255
uint8_t mb ;
uint8_t kb ;
uint8_t numChannels ;
uint16_t maxRun ;
uint32_t maxFrameBytes ;
uint32_t avgBitRate ;
uint32_t sampleRate ;

} ALACSpecificConfig;
} ALACSpecificConfig ;


// The AudioChannelLayout atom type is not exposed yet so define it here
enum
{
AudioChannelLayoutAID = MAKE_MARKER ('c', 'h', 'a', 'n')
};
} ;

#if PRAGMA_STRUCT_ALIGN
#pragma options align=reset
#pragma options align = reset
#elif PRAGMA_STRUCT_PACKPUSH
#pragma pack(pop)
#pragma pack (pop)
#elif PRAGMA_STRUCT_PACK
#pragma pack()
#pragma pack ()
#endif

#ifdef __cplusplus
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