#if !defined(__CoreAudioTypes_h__) #define __CoreAudioTypes_h__ enum { kVariableLengthArray = 1 }; typedef uint32_t AudioChannelLabel; typedef uint32_t AudioChannelLayoutTag; struct AudioChannelDescription { AudioChannelLabel mChannelLabel; uint32_t mChannelFlags; float mCoordinates[3]; }; typedef struct AudioChannelDescription AudioChannelDescription; struct AudioChannelLayout { AudioChannelLayoutTag mChannelLayoutTag; uint32_t mChannelBitmap; uint32_t mNumberChannelDescriptions; AudioChannelDescription mChannelDescriptions[kVariableLengthArray]; }; typedef struct AudioChannelLayout AudioChannelLayout; enum { kAudioChannelLabel_Unknown = 0xFFFFFFFF, // unknown or unspecified other use kAudioChannelLabel_Unused = 0, // channel is present, but has no intended use or destination kAudioChannelLabel_UseCoordinates = 100, // channel is described by the mCoordinates fields. kAudioChannelLabel_Left = 1, kAudioChannelLabel_Right = 2, kAudioChannelLabel_Center = 3, kAudioChannelLabel_LFEScreen = 4, kAudioChannelLabel_LeftSurround = 5, // WAVE: "Back Left" kAudioChannelLabel_RightSurround = 6, // WAVE: "Back Right" kAudioChannelLabel_LeftCenter = 7, kAudioChannelLabel_RightCenter = 8, kAudioChannelLabel_CenterSurround = 9, // WAVE: "Back Center" or plain "Rear Surround" kAudioChannelLabel_LeftSurroundDirect = 10, // WAVE: "Side Left" kAudioChannelLabel_RightSurroundDirect = 11, // WAVE: "Side Right" kAudioChannelLabel_TopCenterSurround = 12, kAudioChannelLabel_VerticalHeightLeft = 13, // WAVE: "Top Front Left" kAudioChannelLabel_VerticalHeightCenter = 14, // WAVE: "Top Front Center" kAudioChannelLabel_VerticalHeightRight = 15, // WAVE: "Top Front Right" kAudioChannelLabel_TopBackLeft = 16, kAudioChannelLabel_TopBackCenter = 17, kAudioChannelLabel_TopBackRight = 18, kAudioChannelLabel_RearSurroundLeft = 33, kAudioChannelLabel_RearSurroundRight = 34, kAudioChannelLabel_LeftWide = 35, kAudioChannelLabel_RightWide = 36, kAudioChannelLabel_LFE2 = 37, kAudioChannelLabel_LeftTotal = 38, // matrix encoded 4 channels kAudioChannelLabel_RightTotal = 39, // matrix encoded 4 channels kAudioChannelLabel_HearingImpaired = 40, kAudioChannelLabel_Narration = 41, kAudioChannelLabel_Mono = 42, kAudioChannelLabel_DialogCentricMix = 43, kAudioChannelLabel_CenterSurroundDirect = 44, // back center, non diffuse kAudioChannelLabel_Haptic = 45, // first order ambisonic channels kAudioChannelLabel_Ambisonic_W = 200, kAudioChannelLabel_Ambisonic_X = 201, kAudioChannelLabel_Ambisonic_Y = 202, kAudioChannelLabel_Ambisonic_Z = 203, // Mid/Side Recording kAudioChannelLabel_MS_Mid = 204, kAudioChannelLabel_MS_Side = 205, // X-Y Recording kAudioChannelLabel_XY_X = 206, kAudioChannelLabel_XY_Y = 207, // other kAudioChannelLabel_HeadphonesLeft = 301, kAudioChannelLabel_HeadphonesRight = 302, kAudioChannelLabel_ClickTrack = 304, kAudioChannelLabel_ForeignLanguage = 305, // generic discrete channel kAudioChannelLabel_Discrete = 400, // numbered discrete channel kAudioChannelLabel_Discrete_0 = (1L<<16) | 0, kAudioChannelLabel_Discrete_1 = (1L<<16) | 1, kAudioChannelLabel_Discrete_2 = (1L<<16) | 2, kAudioChannelLabel_Discrete_3 = (1L<<16) | 3, kAudioChannelLabel_Discrete_4 = (1L<<16) | 4, kAudioChannelLabel_Discrete_5 = (1L<<16) | 5, kAudioChannelLabel_Discrete_6 = (1L<<16) | 6, kAudioChannelLabel_Discrete_7 = (1L<<16) | 7, kAudioChannelLabel_Discrete_8 = (1L<<16) | 8, kAudioChannelLabel_Discrete_9 = (1L<<16) | 9, kAudioChannelLabel_Discrete_10 = (1L<<16) | 10, kAudioChannelLabel_Discrete_11 = (1L<<16) | 11, kAudioChannelLabel_Discrete_12 = (1L<<16) | 12, kAudioChannelLabel_Discrete_13 = (1L<<16) | 13, kAudioChannelLabel_Discrete_14 = (1L<<16) | 14, kAudioChannelLabel_Discrete_15 = (1L<<16) | 15, kAudioChannelLabel_Discrete_65535 = (1L<<16) | 65535 }; #define AudioChannelLayoutTag_GetNumberOfChannels(layoutTag) \ ((uint32_t)((layoutTag) & 0x0000FFFF)) enum { kAudioChannelLayoutTag_UseChannelDescriptions = (0L<<16) | 0, // use the array of AudioChannelDescriptions to define the mapping. kAudioChannelLayoutTag_UseChannelBitmap = (1L<<16) | 0, // use the bitmap to define the mapping. kAudioChannelLayoutTag_Mono = (100L<<16) | 1, // a standard mono stream kAudioChannelLayoutTag_Stereo = (101L<<16) | 2, // a standard stereo stream (L R) - implied playback kAudioChannelLayoutTag_StereoHeadphones = (102L<<16) | 2, // a standard stereo stream (L R) - implied headphone playbac kAudioChannelLayoutTag_MatrixStereo = (103L<<16) | 2, // a matrix encoded stereo stream (Lt, Rt) kAudioChannelLayoutTag_MidSide = (104L<<16) | 2, // mid/side recording kAudioChannelLayoutTag_XY = (105L<<16) | 2, // coincident mic pair (often 2 figure 8's) kAudioChannelLayoutTag_Binaural = (106L<<16) | 2, // binaural stereo (left, right) kAudioChannelLayoutTag_Ambisonic_B_Format = (107L<<16) | 4, // W, X, Y, Z kAudioChannelLayoutTag_Quadraphonic = (108L<<16) | 4, // front left, front right, back left, back right kAudioChannelLayoutTag_Pentagonal = (109L<<16) | 5, // left, right, rear left, rear right, center kAudioChannelLayoutTag_Hexagonal = (110L<<16) | 6, // left, right, rear left, rear right, center, rear kAudioChannelLayoutTag_Octagonal = (111L<<16) | 8, // front left, front right, rear left, rear right, // front center, rear center, side left, side right kAudioChannelLayoutTag_Cube = (112L<<16) | 8, // left, right, rear left, rear right // top left, top right, top rear left, top rear right // MPEG defined layouts kAudioChannelLayoutTag_MPEG_1_0 = kAudioChannelLayoutTag_Mono, // C kAudioChannelLayoutTag_MPEG_2_0 = kAudioChannelLayoutTag_Stereo, // L R kAudioChannelLayoutTag_MPEG_3_0_A = (113L<<16) | 3, // L R C kAudioChannelLayoutTag_MPEG_3_0_B = (114L<<16) | 3, // C L R kAudioChannelLayoutTag_MPEG_4_0_A = (115L<<16) | 4, // L R C Cs kAudioChannelLayoutTag_MPEG_4_0_B = (116L<<16) | 4, // C L R Cs kAudioChannelLayoutTag_MPEG_5_0_A = (117L<<16) | 5, // L R C Ls Rs kAudioChannelLayoutTag_MPEG_5_0_B = (118L<<16) | 5, // L R Ls Rs C kAudioChannelLayoutTag_MPEG_5_0_C = (119L<<16) | 5, // L C R Ls Rs kAudioChannelLayoutTag_MPEG_5_0_D = (120L<<16) | 5, // C L R Ls Rs kAudioChannelLayoutTag_MPEG_5_1_A = (121L<<16) | 6, // L R C LFE Ls Rs kAudioChannelLayoutTag_MPEG_5_1_B = (122L<<16) | 6, // L R Ls Rs C LFE kAudioChannelLayoutTag_MPEG_5_1_C = (123L<<16) | 6, // L C R Ls Rs LFE kAudioChannelLayoutTag_MPEG_5_1_D = (124L<<16) | 6, // C L R Ls Rs LFE kAudioChannelLayoutTag_MPEG_6_1_A = (125L<<16) | 7, // L R C LFE Ls Rs Cs kAudioChannelLayoutTag_MPEG_7_1_A = (126L<<16) | 8, // L R C LFE Ls Rs Lc Rc kAudioChannelLayoutTag_MPEG_7_1_B = (127L<<16) | 8, // C Lc Rc L R Ls Rs LFE (doc: IS-13818-7 MPEG2-AAC Table 3.1) kAudioChannelLayoutTag_MPEG_7_1_C = (128L<<16) | 8, // L R C LFE Ls Rs Rls Rrs kAudioChannelLayoutTag_Emagic_Default_7_1 = (129L<<16) | 8, // L R Ls Rs C LFE Lc Rc kAudioChannelLayoutTag_SMPTE_DTV = (130L<<16) | 8, // L R C LFE Ls Rs Lt Rt // (kAudioChannelLayoutTag_ITU_5_1 plus a matrix encoded stereo mix) // ITU defined layouts kAudioChannelLayoutTag_ITU_1_0 = kAudioChannelLayoutTag_Mono, // C kAudioChannelLayoutTag_ITU_2_0 = kAudioChannelLayoutTag_Stereo, // L R kAudioChannelLayoutTag_ITU_2_1 = (131L<<16) | 3, // L R Cs kAudioChannelLayoutTag_ITU_2_2 = (132L<<16) | 4, // L R Ls Rs kAudioChannelLayoutTag_ITU_3_0 = kAudioChannelLayoutTag_MPEG_3_0_A, // L R C kAudioChannelLayoutTag_ITU_3_1 = kAudioChannelLayoutTag_MPEG_4_0_A, // L R C Cs kAudioChannelLayoutTag_ITU_3_2 = kAudioChannelLayoutTag_MPEG_5_0_A, // L R C Ls Rs kAudioChannelLayoutTag_ITU_3_2_1 = kAudioChannelLayoutTag_MPEG_5_1_A, // L R C LFE Ls Rs kAudioChannelLayoutTag_ITU_3_4_1 = kAudioChannelLayoutTag_MPEG_7_1_C, // L R C LFE Ls Rs Rls Rrs // DVD defined layouts kAudioChannelLayoutTag_DVD_0 = kAudioChannelLayoutTag_Mono, // C (mono) kAudioChannelLayoutTag_DVD_1 = kAudioChannelLayoutTag_Stereo, // L R kAudioChannelLayoutTag_DVD_2 = kAudioChannelLayoutTag_ITU_2_1, // L R Cs kAudioChannelLayoutTag_DVD_3 = kAudioChannelLayoutTag_ITU_2_2, // L R Ls Rs kAudioChannelLayoutTag_DVD_4 = (133L<<16) | 3, // L R LFE kAudioChannelLayoutTag_DVD_5 = (134L<<16) | 4, // L R LFE Cs kAudioChannelLayoutTag_DVD_6 = (135L<<16) | 5, // L R LFE Ls Rs kAudioChannelLayoutTag_DVD_7 = kAudioChannelLayoutTag_MPEG_3_0_A, // L R C kAudioChannelLayoutTag_DVD_8 = kAudioChannelLayoutTag_MPEG_4_0_A, // L R C Cs kAudioChannelLayoutTag_DVD_9 = kAudioChannelLayoutTag_MPEG_5_0_A, // L R C Ls Rs kAudioChannelLayoutTag_DVD_10 = (136L<<16) | 4, // L R C LFE kAudioChannelLayoutTag_DVD_11 = (137L<<16) | 5, // L R C LFE Cs kAudioChannelLayoutTag_DVD_12 = kAudioChannelLayoutTag_MPEG_5_1_A, // L R C LFE Ls Rs // 13 through 17 are duplicates of 8 through 12. kAudioChannelLayoutTag_DVD_13 = kAudioChannelLayoutTag_DVD_8, // L R C Cs kAudioChannelLayoutTag_DVD_14 = kAudioChannelLayoutTag_DVD_9, // L R C Ls Rs kAudioChannelLayoutTag_DVD_15 = kAudioChannelLayoutTag_DVD_10, // L R C LFE kAudioChannelLayoutTag_DVD_16 = kAudioChannelLayoutTag_DVD_11, // L R C LFE Cs kAudioChannelLayoutTag_DVD_17 = kAudioChannelLayoutTag_DVD_12, // L R C LFE Ls Rs kAudioChannelLayoutTag_DVD_18 = (138L<<16) | 5, // L R Ls Rs LFE kAudioChannelLayoutTag_DVD_19 = kAudioChannelLayoutTag_MPEG_5_0_B, // L R Ls Rs C kAudioChannelLayoutTag_DVD_20 = kAudioChannelLayoutTag_MPEG_5_1_B, // L R Ls Rs C LFE // These layouts are recommended for AudioUnit usage // These are the symmetrical layouts kAudioChannelLayoutTag_AudioUnit_4 = kAudioChannelLayoutTag_Quadraphonic, kAudioChannelLayoutTag_AudioUnit_5 = kAudioChannelLayoutTag_Pentagonal, kAudioChannelLayoutTag_AudioUnit_6 = kAudioChannelLayoutTag_Hexagonal, kAudioChannelLayoutTag_AudioUnit_8 = kAudioChannelLayoutTag_Octagonal, // These are the surround-based layouts kAudioChannelLayoutTag_AudioUnit_5_0 = kAudioChannelLayoutTag_MPEG_5_0_B, // L R Ls Rs C kAudioChannelLayoutTag_AudioUnit_6_0 = (139L<<16) | 6, // L R Ls Rs C Cs kAudioChannelLayoutTag_AudioUnit_7_0 = (140L<<16) | 7, // L R Ls Rs C Rls Rrs kAudioChannelLayoutTag_AudioUnit_7_0_Front = (148L<<16) | 7, // L R Ls Rs C Lc Rc kAudioChannelLayoutTag_AudioUnit_5_1 = kAudioChannelLayoutTag_MPEG_5_1_A, // L R C LFE Ls Rs kAudioChannelLayoutTag_AudioUnit_6_1 = kAudioChannelLayoutTag_MPEG_6_1_A, // L R C LFE Ls Rs Cs kAudioChannelLayoutTag_AudioUnit_7_1 = kAudioChannelLayoutTag_MPEG_7_1_C, // L R C LFE Ls Rs Rls Rrs kAudioChannelLayoutTag_AudioUnit_7_1_Front = kAudioChannelLayoutTag_MPEG_7_1_A, // L R C LFE Ls Rs Lc Rc kAudioChannelLayoutTag_AAC_3_0 = kAudioChannelLayoutTag_MPEG_3_0_B, // C L R kAudioChannelLayoutTag_AAC_Quadraphonic = kAudioChannelLayoutTag_Quadraphonic, // L R Ls Rs kAudioChannelLayoutTag_AAC_4_0 = kAudioChannelLayoutTag_MPEG_4_0_B, // C L R Cs kAudioChannelLayoutTag_AAC_5_0 = kAudioChannelLayoutTag_MPEG_5_0_D, // C L R Ls Rs kAudioChannelLayoutTag_AAC_5_1 = kAudioChannelLayoutTag_MPEG_5_1_D, // C L R Ls Rs Lfe kAudioChannelLayoutTag_AAC_6_0 = (141L<<16) | 6, // C L R Ls Rs Cs kAudioChannelLayoutTag_AAC_6_1 = (142L<<16) | 7, // C L R Ls Rs Cs Lfe kAudioChannelLayoutTag_AAC_7_0 = (143L<<16) | 7, // C L R Ls Rs Rls Rrs kAudioChannelLayoutTag_AAC_7_1 = kAudioChannelLayoutTag_MPEG_7_1_B, // C Lc Rc L R Ls Rs Lfe kAudioChannelLayoutTag_AAC_Octagonal = (144L<<16) | 8, // C L R Ls Rs Rls Rrs Cs kAudioChannelLayoutTag_TMH_10_2_std = (145L<<16) | 16, // L R C Vhc Lsd Rsd Ls Rs Vhl Vhr Lw Rw Csd Cs LFE1 LFE2 kAudioChannelLayoutTag_TMH_10_2_full = (146L<<16) | 21, // TMH_10_2_std plus: Lc Rc HI VI Haptic kAudioChannelLayoutTag_AC3_1_0_1 = (149L<<16) | 2, // C LFE kAudioChannelLayoutTag_AC3_3_0 = (150L<<16) | 3, // L C R kAudioChannelLayoutTag_AC3_3_1 = (151L<<16) | 4, // L C R Cs kAudioChannelLayoutTag_AC3_3_0_1 = (152L<<16) | 4, // L C R LFE kAudioChannelLayoutTag_AC3_2_1_1 = (153L<<16) | 4, // L R Cs LFE kAudioChannelLayoutTag_AC3_3_1_1 = (154L<<16) | 5, // L C R Cs LFE kAudioChannelLayoutTag_DiscreteInOrder = (147L<<16) | 0, // needs to be ORed with the actual number of channels kAudioChannelLayoutTag_Unknown = 0xFFFF0000 // needs to be ORed with the actual number of channels }; #endif