soundanalysis

package
v0.1.0 Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Jun 13, 2026 License: MIT Imports: 11 Imported by: 0

Documentation

Rendered for darwin/amd64

Overview

Package soundanalysis provides purego-based Go bindings for the macOS SoundAnalysis framework.

Apple documentation: https://developer.apple.com/documentation/soundanalysis

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func SNClassifierIdentifierVersion1 

func SNClassifierIdentifierVersion1() *foundation.NSString

Denotes the first edition of the Apple-provided sound classifier.

func SNErrorDomain 

func SNErrorDomain() uintptr

Types

type Acl_entry_id_t 

type Acl_entry_id_t int64
const (
	ACL_FIRST_ENTRY Acl_entry_id_t = 0
	ACL_NEXT_ENTRY  Acl_entry_id_t = -1
	ACL_LAST_ENTRY  Acl_entry_id_t = -2
)

func (Acl_entry_id_t) String 

func (e Acl_entry_id_t) String() string

type Acl_flag_t 

type Acl_flag_t int64
const (
	ACL_FLAG_DEFER_INHERIT      Acl_flag_t = 1
	ACL_FLAG_NO_INHERIT         Acl_flag_t = 131072
	ACL_ENTRY_INHERITED         Acl_flag_t = 16
	ACL_ENTRY_FILE_INHERIT      Acl_flag_t = 32
	ACL_ENTRY_DIRECTORY_INHERIT Acl_flag_t = 64
	ACL_ENTRY_LIMIT_INHERIT     Acl_flag_t = 128
	ACL_ENTRY_ONLY_INHERIT      Acl_flag_t = 256
)

func (Acl_flag_t) String 

func (e Acl_flag_t) String() string

type Acl_perm_t 

type Acl_perm_t int64
const (
	ACL_READ_DATA           Acl_perm_t = 2
	ACL_LIST_DIRECTORY      Acl_perm_t = 2
	ACL_WRITE_DATA          Acl_perm_t = 4
	ACL_ADD_FILE            Acl_perm_t = 4
	ACL_EXECUTE             Acl_perm_t = 8
	ACL_SEARCH              Acl_perm_t = 8
	ACL_DELETE              Acl_perm_t = 16
	ACL_APPEND_DATA         Acl_perm_t = 32
	ACL_ADD_SUBDIRECTORY    Acl_perm_t = 32
	ACL_DELETE_CHILD        Acl_perm_t = 64
	ACL_READ_ATTRIBUTES     Acl_perm_t = 128
	ACL_WRITE_ATTRIBUTES    Acl_perm_t = 256
	ACL_READ_EXTATTRIBUTES  Acl_perm_t = 512
	ACL_WRITE_EXTATTRIBUTES Acl_perm_t = 1024
	ACL_READ_SECURITY       Acl_perm_t = 2048
	ACL_WRITE_SECURITY      Acl_perm_t = 4096
	ACL_CHANGE_OWNER        Acl_perm_t = 8192
	ACL_SYNCHRONIZE         Acl_perm_t = 1048576
)

func (Acl_perm_t) String 

func (e Acl_perm_t) String() string

type Acl_tag_t 

type Acl_tag_t int64
const (
	ACL_UNDEFINED_TAG  Acl_tag_t = 0
	ACL_EXTENDED_ALLOW Acl_tag_t = 1
	ACL_EXTENDED_DENY  Acl_tag_t = 2
)

func (Acl_tag_t) String 

func (e Acl_tag_t) String() string

type Acl_type_t 

type Acl_type_t int64
const (
	ACL_TYPE_EXTENDED Acl_type_t = 256
	ACL_TYPE_ACCESS   Acl_type_t = 0
	ACL_TYPE_DEFAULT  Acl_type_t = 1
	ACL_TYPE_AFS      Acl_type_t = 2
	ACL_TYPE_CODA     Acl_type_t = 3
	ACL_TYPE_NTFS     Acl_type_t = 4
	ACL_TYPE_NWFS     Acl_type_t = 5
)

func (Acl_type_t) String 

func (e Acl_type_t) String() string

type CGLCPContextPriorityRequest 

type CGLCPContextPriorityRequest int64
const (
	KCGLCPContextPriorityRequestHigh   CGLCPContextPriorityRequest = 0
	KCGLCPContextPriorityRequestNormal CGLCPContextPriorityRequest = 1
	KCGLCPContextPriorityRequestLow    CGLCPContextPriorityRequest = 2
)

func (CGLCPContextPriorityRequest) String 

func (e CGLCPContextPriorityRequest) String() string

type Clockid_t 

type Clockid_t int64

func (Clockid_t) String 

func (e Clockid_t) String() string

type Dispatch_autorelease_frequency_t 

type Dispatch_autorelease_frequency_t uint64
const (
	DISPATCH_AUTORELEASE_FREQUENCY_INHERIT   Dispatch_autorelease_frequency_t = 0
	DISPATCH_AUTORELEASE_FREQUENCY_WORK_ITEM Dispatch_autorelease_frequency_t = 1
	DISPATCH_AUTORELEASE_FREQUENCY_NEVER     Dispatch_autorelease_frequency_t = 2
)

func (Dispatch_autorelease_frequency_t) String 

func (e Dispatch_autorelease_frequency_t) String() string

type Dispatch_block_flags_t 

type Dispatch_block_flags_t uint64
const (
	DISPATCH_BLOCK_BARRIER           Dispatch_block_flags_t = 1
	DISPATCH_BLOCK_DETACHED          Dispatch_block_flags_t = 2
	DISPATCH_BLOCK_ASSIGN_CURRENT    Dispatch_block_flags_t = 4
	DISPATCH_BLOCK_NO_QOS_CLASS      Dispatch_block_flags_t = 8
	DISPATCH_BLOCK_INHERIT_QOS_CLASS Dispatch_block_flags_t = 16
	DISPATCH_BLOCK_ENFORCE_QOS_CLASS Dispatch_block_flags_t = 32
)

func (Dispatch_block_flags_t) String 

func (e Dispatch_block_flags_t) String() string

type EvCmd 

type EvCmd int64
const (
	EVNOP   EvCmd = 0
	EVHIDE  EvCmd = 1
	EVSHOW  EvCmd = 2
	EVMOVE  EvCmd = 3
	EVLEVEL EvCmd = 4
)

func (EvCmd) String 

func (e EvCmd) String() string

type Filesec_property_t 

type Filesec_property_t int64
const (
	FILESEC_OWNER         Filesec_property_t = 1
	FILESEC_GROUP         Filesec_property_t = 2
	FILESEC_UUID          Filesec_property_t = 3
	FILESEC_MODE          Filesec_property_t = 4
	FILESEC_ACL           Filesec_property_t = 5
	FILESEC_GRPUUID       Filesec_property_t = 6
	FILESEC_ACL_RAW       Filesec_property_t = 100
	FILESEC_ACL_ALLOCSIZE Filesec_property_t = 101
)

func (Filesec_property_t) String 

func (e Filesec_property_t) String() string

type Idtype_t 

type Idtype_t int64
const (
	P_ALL  Idtype_t = 0
	P_PID  Idtype_t = 1
	P_PGID Idtype_t = 2
)

func (Idtype_t) String 

func (e Idtype_t) String() string

type Ipc_info_object_type_t 

type Ipc_info_object_type_t int64
const (
	IPC_OTYPE_NONE                 Ipc_info_object_type_t = 0
	IPC_OTYPE_THREAD_CONTROL       Ipc_info_object_type_t = 1
	IPC_OTYPE_TASK_CONTROL         Ipc_info_object_type_t = 2
	IPC_OTYPE_HOST                 Ipc_info_object_type_t = 3
	IPC_OTYPE_HOST_PRIV            Ipc_info_object_type_t = 4
	IPC_OTYPE_PROCESSOR            Ipc_info_object_type_t = 5
	IPC_OTYPE_PROCESSOR_SET        Ipc_info_object_type_t = 6
	IPC_OTYPE_PROCESSOR_SET_NAME   Ipc_info_object_type_t = 7
	IPC_OTYPE_TIMER                Ipc_info_object_type_t = 8
	IPC_OTYPE_PORT_SUBST_ONCE      Ipc_info_object_type_t = 9
	IPC_OTYPE_MIG                  Ipc_info_object_type_t = 10
	IPC_OTYPE_MEMORY_OBJECT        Ipc_info_object_type_t = 11
	IPC_OTYPE_XMM_PAGER            Ipc_info_object_type_t = 12
	IPC_OTYPE_XMM_KERNEL           Ipc_info_object_type_t = 13
	IPC_OTYPE_XMM_REPLY            Ipc_info_object_type_t = 14
	IPC_OTYPE_UND_REPLY            Ipc_info_object_type_t = 15
	IPC_OTYPE_HOST_NOTIFY          Ipc_info_object_type_t = 16
	IPC_OTYPE_HOST_SECURITY        Ipc_info_object_type_t = 17
	IPC_OTYPE_LEDGER               Ipc_info_object_type_t = 18
	IPC_OTYPE_MAIN_DEVICE          Ipc_info_object_type_t = 19
	IPC_OTYPE_TASK_NAME            Ipc_info_object_type_t = 20
	IPC_OTYPE_SUBSYSTEM            Ipc_info_object_type_t = 21
	IPC_OTYPE_IO_DONE_QUEUE        Ipc_info_object_type_t = 22
	IPC_OTYPE_SEMAPHORE            Ipc_info_object_type_t = 23
	IPC_OTYPE_LOCK_SET             Ipc_info_object_type_t = 24
	IPC_OTYPE_CLOCK                Ipc_info_object_type_t = 25
	IPC_OTYPE_CLOCK_CTRL           Ipc_info_object_type_t = 26
	IPC_OTYPE_IOKIT_IDENT          Ipc_info_object_type_t = 27
	IPC_OTYPE_NAMED_ENTRY          Ipc_info_object_type_t = 28
	IPC_OTYPE_IOKIT_CONNECT        Ipc_info_object_type_t = 29
	IPC_OTYPE_IOKIT_OBJECT         Ipc_info_object_type_t = 30
	IPC_OTYPE_UPL                  Ipc_info_object_type_t = 31
	IPC_OTYPE_MEM_OBJ_CONTROL      Ipc_info_object_type_t = 32
	IPC_OTYPE_AU_SESSIONPORT       Ipc_info_object_type_t = 33
	IPC_OTYPE_FILEPORT             Ipc_info_object_type_t = 34
	IPC_OTYPE_LABELH               Ipc_info_object_type_t = 35
	IPC_OTYPE_TASK_RESUME          Ipc_info_object_type_t = 36
	IPC_OTYPE_VOUCHER              Ipc_info_object_type_t = 37
	IPC_OTYPE_VOUCHER_ATTR_CONTROL Ipc_info_object_type_t = 38
	IPC_OTYPE_WORK_INTERVAL        Ipc_info_object_type_t = 39
	IPC_OTYPE_UX_HANDLER           Ipc_info_object_type_t = 40
	IPC_OTYPE_UEXT_OBJECT          Ipc_info_object_type_t = 41
	IPC_OTYPE_ARCADE_REG           Ipc_info_object_type_t = 42
	IPC_OTYPE_EVENTLINK            Ipc_info_object_type_t = 43
	IPC_OTYPE_TASK_INSPECT         Ipc_info_object_type_t = 44
	IPC_OTYPE_TASK_READ            Ipc_info_object_type_t = 45
	IPC_OTYPE_THREAD_INSPECT       Ipc_info_object_type_t = 46
	IPC_OTYPE_THREAD_READ          Ipc_info_object_type_t = 47
	IPC_OTYPE_SUID_CRED            Ipc_info_object_type_t = 48
	IPC_OTYPE_HYPERVISOR           Ipc_info_object_type_t = 49
	IPC_OTYPE_TASK_ID_TOKEN        Ipc_info_object_type_t = 50
	IPC_OTYPE_TASK_FATAL           Ipc_info_object_type_t = 51
	IPC_OTYPE_KCDATA               Ipc_info_object_type_t = 52
	IPC_OTYPE_EXCLAVES_RESOURCE    Ipc_info_object_type_t = 53
	IPC_OTYPE_THREAD_RESUME        Ipc_info_object_type_t = 54
	IPC_OTYPE_UNKNOWN              Ipc_info_object_type_t = 4294967295
)

func (Ipc_info_object_type_t) String 

func (e Ipc_info_object_type_t) String() string

type Launch_data_type_t 

type Launch_data_type_t int64
const (
	LAUNCH_DATA_DICTIONARY Launch_data_type_t = 1
	LAUNCH_DATA_ARRAY      Launch_data_type_t = 2
	LAUNCH_DATA_FD         Launch_data_type_t = 3
	LAUNCH_DATA_INTEGER    Launch_data_type_t = 4
	LAUNCH_DATA_REAL       Launch_data_type_t = 5
	LAUNCH_DATA_BOOL       Launch_data_type_t = 6
	LAUNCH_DATA_STRING     Launch_data_type_t = 7
	LAUNCH_DATA_OPAQUE     Launch_data_type_t = 8
	LAUNCH_DATA_ERRNO      Launch_data_type_t = 9
	LAUNCH_DATA_MACHPORT   Launch_data_type_t = 10
)

func (Launch_data_type_t) String 

func (e Launch_data_type_t) String() string

type MDLabelDomain 

type MDLabelDomain int64

@typedef MDLabelDomain @abstract These constants are used to specify a domain to MDLabelCreate(). 

const (
	KMDLabelUserDomain  MDLabelDomain = 0
	KMDLabelLocalDomain MDLabelDomain = 1
)

func (MDLabelDomain) String 

func (e MDLabelDomain) String() string

type MDQueryOptionFlags 

type MDQueryOptionFlags int64
const (
	KMDQuerySynchronous        MDQueryOptionFlags = 1
	KMDQueryWantsUpdates       MDQueryOptionFlags = 4
	KMDQueryAllowFSTranslation MDQueryOptionFlags = 8
)

func (MDQueryOptionFlags) String 

func (e MDQueryOptionFlags) String() string

type MDQuerySortOptionFlags 

type MDQuerySortOptionFlags int64

@enum MDQuerySortOptionFlags @constant kMDQueryReverseSortOrderFlag Sort the attribute in reverse order. 

const (
	KMDQueryReverseSortOrderFlag MDQuerySortOptionFlags = 1
)

func (MDQuerySortOptionFlags) String 

func (e MDQuerySortOptionFlags) String() string

type Mach_vm_range_flags_t 

type Mach_vm_range_flags_t int64
const (
	MACH_VM_RANGE_NONE Mach_vm_range_flags_t = 0
)

func (Mach_vm_range_flags_t) String 

func (e Mach_vm_range_flags_t) String() string

type Mach_vm_range_flavor_t 

type Mach_vm_range_flavor_t int64
const (
	MACH_VM_RANGE_FLAVOR_INVALID Mach_vm_range_flavor_t = 0
	MACH_VM_RANGE_FLAVOR_V1      Mach_vm_range_flavor_t = 1
)

func (Mach_vm_range_flavor_t) String 

func (e Mach_vm_range_flavor_t) String() string

type Mach_vm_range_tag_t 

type Mach_vm_range_tag_t int64
const (
	MACH_VM_RANGE_DEFAULT Mach_vm_range_tag_t = 0
	MACH_VM_RANGE_DATA    Mach_vm_range_tag_t = 1
	MACH_VM_RANGE_FIXED   Mach_vm_range_tag_t = 2
)

func (Mach_vm_range_tag_t) String 

func (e Mach_vm_range_tag_t) String() string

type Mpo_flags_t 

type Mpo_flags_t int64
const (
	MPO_PORT                            Mpo_flags_t = 0
	MPO_SERVICE_PORT                    Mpo_flags_t = 1024
	MPO_CONNECTION_PORT                 Mpo_flags_t = 2048
	MPO_REPLY_PORT                      Mpo_flags_t = 4096
	MPO_WEAK_REPLY_PORT                 Mpo_flags_t = 16384
	MPO_NOTIFICATION_PORT               Mpo_flags_t = 17408
	MPO_EXCEPTION_PORT                  Mpo_flags_t = 32768
	MPO_CONNECTION_PORT_WITH_PORT_ARRAY Mpo_flags_t = 65536
)

func (Mpo_flags_t) String 

func (e Mpo_flags_t) String() string

type NXMouseButton 

type NXMouseButton int64
const (
	NX_OneButton   NXMouseButton = 0
	NX_LeftButton  NXMouseButton = 1
	NX_RightButton NXMouseButton = 2
)

func (NXMouseButton) String 

func (e NXMouseButton) String() string

type Os_clockid_t 

type Os_clockid_t int64
const (
	OS_CLOCK_MACH_ABSOLUTE_TIME Os_clockid_t = 32
)

func (Os_clockid_t) String 

func (e Os_clockid_t) String() string

type PMPageToPaperMappingType 

type PMPageToPaperMappingType int64
const (
	KPMPageToPaperMappingNone       PMPageToPaperMappingType = 1
	KPMPageToPaperMappingScaleToFit PMPageToPaperMappingType = 2
)

func (PMPageToPaperMappingType) String 

func (e PMPageToPaperMappingType) String() string

type Ptrauth_key 

type Ptrauth_key int64
const (
	Ptrauth_key_none                     Ptrauth_key = -1
	Ptrauth_key_asia                     Ptrauth_key = 0
	Ptrauth_key_asib                     Ptrauth_key = 1
	Ptrauth_key_asda                     Ptrauth_key = 2
	Ptrauth_key_asdb                     Ptrauth_key = 3
	Ptrauth_key_process_independent_code Ptrauth_key = 0
	Ptrauth_key_process_dependent_code   Ptrauth_key = 1
	Ptrauth_key_process_independent_data Ptrauth_key = 2
	Ptrauth_key_process_dependent_data   Ptrauth_key = 3
	Ptrauth_key_return_address           Ptrauth_key = 1
	Ptrauth_key_frame_pointer            Ptrauth_key = 3
	Ptrauth_key_function_pointer         Ptrauth_key = 0
	Ptrauth_key_block_function           Ptrauth_key = 0
	Ptrauth_key_cxx_vtable_pointer       Ptrauth_key = 2
	Ptrauth_key_method_list_pointer      Ptrauth_key = 2
	Ptrauth_key_objc_isa_pointer         Ptrauth_key = 2
	Ptrauth_key_objc_super_pointer       Ptrauth_key = 2
	Ptrauth_key_objc_sel_pointer         Ptrauth_key = 3
	Ptrauth_key_objc_class_ro_pointer    Ptrauth_key = 2
	Ptrauth_key_block_descriptor_pointer Ptrauth_key = 2
	Ptrauth_key_init_fini_pointer        Ptrauth_key = 0
)

func (Ptrauth_key) String 

func (e Ptrauth_key) String() string

type Qos_class_t 

type Qos_class_t uint32
const (
	QOS_CLASS_USER_INTERACTIVE Qos_class_t = 33
	QOS_CLASS_USER_INITIATED   Qos_class_t = 25
	QOS_CLASS_DEFAULT          Qos_class_t = 21
	QOS_CLASS_UTILITY          Qos_class_t = 17
	QOS_CLASS_BACKGROUND       Qos_class_t = 9
	QOS_CLASS_UNSPECIFIED      Qos_class_t = 0
)

func (Qos_class_t) String 

func (e Qos_class_t) String() string

type SNAudioFileAnalyzer 

type SNAudioFileAnalyzer struct {
	foundation.NSObject
}

Apple documentation: https://developer.apple.com/documentation/soundanalysis/snaudiofileanalyzer

func SNAudioFileAnalyzerFromID 

func SNAudioFileAnalyzerFromID(id objc.ID) *SNAudioFileAnalyzer

func (*SNAudioFileAnalyzer) AddRequestWithObserverError 

func (o *SNAudioFileAnalyzer) AddRequestWithObserverError(request SNRequest, observer SNResultsObserving) (bool, error)

Adds a new analysis request to the analyzer - Parameters: - request: An audio analysis request to be performed on the audio stream - observer: The object that will receive the analysis results for the supplied request. The observer is weakly retained by the analyzer. - error On input, a pointer to an error object. If an error occurs, this pointer is set to an actual error object containing the error information. You may specify nil for this parameter if you do not want the error information. - Returns: YES if the request was successfully added, and NO otherwise. If addRequest is called while the file is being processed, an error will be returned.

func (*SNAudioFileAnalyzer) Analyze 

func (o *SNAudioFileAnalyzer) Analyze()

Analyzes the audio file synchronously This function executes synchronously. Any errors produced during analysis will flow downstream to the request observers. This method may block for a long period of time, so be careful to ensure this call does not block UI or other important tasks.

func (*SNAudioFileAnalyzer) AnalyzeWithCompletionHandler 

func (o *SNAudioFileAnalyzer) AnalyzeWithCompletionHandler(completionHandler func(bool))

Analyzes the audio file asynchronously This function executes asynchronously, calling the completion after the entire file has completed analysis. Any errors produced during analysis will flow downstream to the request observers. If the cancelAnalysis method is called, the completionHandler will still be called, but with didReachEndOfFile set to NO.

func (*SNAudioFileAnalyzer) CancelAnalysis 

func (o *SNAudioFileAnalyzer) CancelAnalysis()

Cancels any in-progress analysis of the audio file This function executes asynchronously, and will trigger the completion handler provided in the analyzeWithCompletionHandler method after the cancellation is complete.

func (*SNAudioFileAnalyzer) InitWithURLError 

func (o *SNAudioFileAnalyzer) InitWithURLError(url *foundation.NSURL) (*SNAudioFileAnalyzer, error)

Creates a new analyzer - Parameters: - url: The url for the audio file to be analyzed - error: On input, a pointer to an error object. If an error occurs, this pointer is set to an actual error object containing the error information. You may specify nil for this parameter if you do not want the error information.

func (*SNAudioFileAnalyzer) RemoveAllRequests 

func (o *SNAudioFileAnalyzer) RemoveAllRequests()

Removes all requests from the analyzer

func (*SNAudioFileAnalyzer) RemoveRequest 

func (o *SNAudioFileAnalyzer) RemoveRequest(request SNRequest)

Removes an existing analysis request from the analyzer - Parameter request: An audio analysis request to be removed Requests can be removed while analysis is in progress. Once the removeRequest method returns, the previously registered observer will not receive any more callbacks.

type SNAudioStreamAnalyzer 

type SNAudioStreamAnalyzer struct {
	foundation.NSObject
}

Apple documentation: https://developer.apple.com/documentation/soundanalysis/snaudiostreamanalyzer

func SNAudioStreamAnalyzerFromID 

func SNAudioStreamAnalyzerFromID(id objc.ID) *SNAudioStreamAnalyzer

func (*SNAudioStreamAnalyzer) AddRequestWithObserverError 

func (o *SNAudioStreamAnalyzer) AddRequestWithObserverError(request SNRequest, observer SNResultsObserving) (bool, error)

Adds a new analysis request to the analyzer - Parameters: - request: An audio analysis request to be performed on the audio stream - observer: The object that will receive the analysis results for the supplied request. The observer is weakly retained by the analyzer. - error: On input, a pointer to an error object. If an error occurs, this pointer is set to an actual error object containing the error information. You may specify nil for this parameter if you do not want the error information. - Returns: YES if the request was successfully added, and NO otherwise. Requests can be added while analysis is in progress. If the analyzer cannot perform the requested analysis, an error will be returned. For example, an error could be returned if the request requires a stream format that doesn't match the analyzer's stream format.

func (*SNAudioStreamAnalyzer) AnalyzeAudioBufferAtAudioFramePosition 

func (o *SNAudioStreamAnalyzer) AnalyzeAudioBufferAtAudioFramePosition(audioBuffer *avfaudio.AVAudioBuffer, audioFramePosition int64)

Provides the next buffer for analysis - Parameters: - audioBuffer: The buffer containing the audio to be processed - audioFramePosition: The frame position of the data in the buffer The framePosition should be a monotonically increasing sample timestamp. If the sample timeline is detected to be non-continuous, the analyzer's internal state may reset to account for the jump. Some types of audio analysis are performed at a fixed block size, which may differ from the buffer sizes provided for analysis. For this reason, an invocation of analyzeAudioBuffer may cause an analysis request observer to be called zero times, one time, or many times, depending on the relationship between the input buffer size, current analyzer state, and native analysis block size. Any errors produced during analysis will be provided through the request observers. This method may block as a means of indicating backpressure to the caller. These methods are not safe to call from a realtime audio context but may be called from lower priority threads (i.e. AVAudioEngine tap callback or AudioQueue callback).

func (*SNAudioStreamAnalyzer) CompleteAnalysis 

func (o *SNAudioStreamAnalyzer) CompleteAnalysis()

Indicates that the audio stream has ended, and no more audio buffers will be analyzed After this method has been called, it is invalid to provide any more audio data for analysis, and any provided buffers will be ignored. This method is useful for types of analysis that may have final results to provide upon the completion of the stream.

func (*SNAudioStreamAnalyzer) InitWithFormat 

func (o *SNAudioStreamAnalyzer) InitWithFormat(format *avfaudio.AVAudioFormat) *SNAudioStreamAnalyzer

Creates a new analyzer - Parameter format: The format of the audio stream to be analyzed. Only PCM formats are supported.

func (*SNAudioStreamAnalyzer) RemoveAllRequests 

func (o *SNAudioStreamAnalyzer) RemoveAllRequests()

Removes all requests from the analyzer

func (*SNAudioStreamAnalyzer) RemoveRequest 

func (o *SNAudioStreamAnalyzer) RemoveRequest(request SNRequest)

Removes an existing analysis request from the analyzer - Parameter request: An audio analysis request to be removed Requests can be removed while analysis is in progress. Once the removeRequest method returns, the previously registered observer will not receive any more callbacks.

type SNClassification 

type SNClassification struct {
	foundation.NSObject
}

Apple documentation: https://developer.apple.com/documentation/soundanalysis/snclassification

func SNClassificationFromID 

func SNClassificationFromID(id objc.ID) *SNClassification

func (*SNClassification) Confidence 

func (o *SNClassification) Confidence() float64

The level of confidence normalized to [0, 1], where 1 is most confident

func (*SNClassification) Identifier 

func (o *SNClassification) Identifier() *foundation.NSString

The identifier of a classification request. An example classification could be a string like 'laughter' or 'applause'. The string is defined in the model that was used for the classification. Usually these are technical labels that are not localized and not meant to be used directly to be presented to an end user in the UI.

type SNClassificationResult 

type SNClassificationResult struct {
	foundation.NSObject
}

Apple documentation: https://developer.apple.com/documentation/soundanalysis/snclassificationresult

func SNClassificationResultFromID 

func SNClassificationResultFromID(id objc.ID) *SNClassificationResult

func (*SNClassificationResult) ClassificationForIdentifier 

func (o *SNClassificationResult) ClassificationForIdentifier(identifier *foundation.NSString) *SNClassification

Retrieves the classification candidate with the specified identifier. - Parameter identifier: An identifier on which to query for a particular classification candidate. The query will match to any classification candidate whose `identifier` property (see `identifier` property of `SNClassification`) contains a value equal to the provided argument. - Returns: The classification candidate which has the specified identifier, if it exists. If no such candidate exists, `nil` will be returned.

func (*SNClassificationResult) Classifications 

func (o *SNClassificationResult) Classifications() *foundation.NSArray[*SNClassification]

All classification candidates, sorted with highest confidence first.

func (*SNClassificationResult) TimeRange 

func (o *SNClassificationResult) TimeRange() coremedia.CMTimeRange

The time range in the client-provided audio stream to which this classification result corresponds Each CMTime contains of a value (audio frame count) and timescale (client sample rate). This enables the client to precisely identify the frame range in the original audio stream to which this result corresponds. Time ranges will often be in the past compared to the frame count of the most recent audio buffer provided to the analyzer, due to the inherent audio buffering operations required to deliver a full block of audio to an MLModel.

type SNClassifySoundRequest 

type SNClassifySoundRequest struct {
	foundation.NSObject
}

Apple documentation: https://developer.apple.com/documentation/soundanalysis/snclassifysoundrequest

func SNClassifySoundRequestFromID 

func SNClassifySoundRequestFromID(id objc.ID) *SNClassifySoundRequest

func (*SNClassifySoundRequest) InitWithClassifierIdentifierError 

func (o *SNClassifySoundRequest) InitWithClassifierIdentifierError(classifierIdentifier *foundation.NSString) (*SNClassifySoundRequest, error)

Initializes a sound classification request with a known classifier. - Parameters: - classifierIdentifier: An identifier identifying the particular classifier to use for labeling sounds. - error: An output parameter which, in the case of an error, will be populated with details about that error. Upon success, the contents of this output parameter are undefined. Please use the return value of this method to determine whether or not an error occurred before using the value assigned to this output parameter. - Returns Upon failure, `nil`; upon success, an `SNClassifySoundRequest` instance which can be added to an analyzer to classify sounds using a recognized classifier. This initializer may be used to classify sounds using Apple-provided sound classifiers. Note that Apple may add new classifiers in the future, but it commits to ensuring the consistent performance of existing classifiers.

func (*SNClassifySoundRequest) InitWithMLModelError 

func (o *SNClassifySoundRequest) InitWithMLModelError(mlModel *coreml.MLModel) (*SNClassifySoundRequest, error)

Initializes a sound classification request with the provided MLModel - Parameter mlModel: The CoreML audio classification model to be used with this request The provided model must accept audio data as input, and output a classification dictionary containing the probability of each category.

func (*SNClassifySoundRequest) KnownClassifications 

func (o *SNClassifySoundRequest) KnownClassifications() *foundation.NSArray[*foundation.NSString]

Lists all labels that can be produced by this request. - Returns: An array of strings containing all sound identifiers which can be produced by this request.

func (*SNClassifySoundRequest) OverlapFactor 

func (o *SNClassifySoundRequest) OverlapFactor() float64

The overlap factor of the windows of audio data provided to the classifier, if the model operates on fixed audio block sizes. When performing audio analysis on fixed audio block sizes, it is common for the analysis windows to overlap by some factor. Without overlapping the analysis windows (when the overlap factor is 0.0), a sound might be split across two analysis windows, which could negatively affect classification performance. Overlapping the analysis windows by 50% ensures each sound will fall near the center of at least one analysis window. The supported range is [0.0, 1.0), and the default value is 0.5. Increasing the overlap factor increases computational complexity, so values greater than 0.5 should be used with care.

func (*SNClassifySoundRequest) SetOverlapFactor 

func (o *SNClassifySoundRequest) SetOverlapFactor(overlapFactor float64)

func (*SNClassifySoundRequest) SetWindowDuration 

func (o *SNClassifySoundRequest) SetWindowDuration(windowDuration coremedia.CMTime)

func (*SNClassifySoundRequest) WindowDuration 

func (o *SNClassifySoundRequest) WindowDuration() coremedia.CMTime

The duration of a single analysis window. When performing classification over an audio stream, a classifier computes each classification result based on a single 'analysis window' of audio. Analysis windows are uniformly-sized time intervals, where the size of any given window is considered that window's 'duration'. Some classifiers can operate over analysis windows which conform to one of several different duration options. Larger window durations allow classification to execute less frequently over larger contexts of audio, potentially improving classification performance. Smaller window durations allow classification to execute more frequently over smaller contexts of audio, producing results with sharper time resolution. Depending on the use-case, a larger or smaller window may be preferable. When configuring the window duration, it is important to respect the capabilities of the classifier. A classifier's supported window durations can be discovered using the `windowDurationConstraint` property. If an unsupported window duration is selected, the window duration will be automatically rounded down to the nearest supported value if possible, else rounded up.

func (*SNClassifySoundRequest) WindowDurationConstraint 

func (o *SNClassifySoundRequest) WindowDurationConstraint() *SNTimeDurationConstraint

The constraints governing permitted analysis window durations. The analysis window duration is controlled using the `windowDuration` property. If an analysis window duration is selected which does not meet the necessary constraints, it will automatically be adjusted to meet these constraints (see `windowDuration` for more information regarding how this adjustment will be applied).

type SNErrorCode 

type SNErrorCode int64
const (
	SNErrorCodeUnknownError    SNErrorCode = 1
	SNErrorCodeOperationFailed SNErrorCode = 2
	SNErrorCodeInvalidFormat   SNErrorCode = 3
	SNErrorCodeInvalidModel    SNErrorCode = 4
	SNErrorCodeInvalidFile     SNErrorCode = 5
)

func (SNErrorCode) String 

func (e SNErrorCode) String() string

type SNRequest 

type SNRequest interface {
}

SNRequest wraps the ObjC protocol SNRequest.

type SNResult 

type SNResult interface {
}

SNResult wraps the ObjC protocol SNResult.

type SNResultsObserving 

type SNResultsObserving interface {
	RequestDidProduceResult(request SNRequest, result SNResult)
}

SNResultsObserving wraps the ObjC protocol SNResultsObserving.

type SNTimeDurationConstraint 

type SNTimeDurationConstraint struct {
	foundation.NSObject
}

Apple documentation: https://developer.apple.com/documentation/soundanalysis/sntimedurationconstraint

func SNTimeDurationConstraintFromID 

func SNTimeDurationConstraintFromID(id objc.ID) *SNTimeDurationConstraint

func (*SNTimeDurationConstraint) DurationRange 

func (o *SNTimeDurationConstraint) DurationRange() coremedia.CMTimeRange

If the constraint type is range, then the range of allowable window durations. - Returns: If the constraint type is range, a CMTimeRange representing the range of allowable window durations. If the constraint type is not range, `kCMTimeRangeInvalid`. The `type` property should be queried before this property is accessed. This property will only yield meaningful values if the constraint type is considered to be 'range'. The constraint type is considered to be 'range' if the `type` property is equal to `SNTimeDurationConstraintTypeRange`.

func (*SNTimeDurationConstraint) EnumeratedDurations 

func (o *SNTimeDurationConstraint) EnumeratedDurations() *foundation.NSArray[*foundation.NSValue]

If the constraint type is enumerated, then the set of discrete allowable time durations. - Returns: If the constraint type is enumerated, an array of CMTime structures (boxed in NSValue instances) representing the set of allowable time durations. The durations will always be provided sorted in order of ascending time. If the constraint type is not enumerated, an empty array will be returned. The `type` property should be queried before this property is accessed. This property will only yield meaningful values if the constraint type is considered to be 'enumerated'. The constraint type is considered to be 'enumerated' if the `type` property is equal to `SNTimeDurationConstraintTypeEnumerated`.

func (*SNTimeDurationConstraint) InitWithDurationRange 

func (o *SNTimeDurationConstraint) InitWithDurationRange(durationRange coremedia.CMTimeRange) *SNTimeDurationConstraint

Initializes a range-type constraint. - Parameter durationRange: A continuous range of duration values (represented as CMTime values) permitted by this constraint. - Returns: An instance whose `type` is `SNTimeDurationConstraintTypeRange`, and which constrains durations values to the provided range.

func (*SNTimeDurationConstraint) InitWithEnumeratedDurations 

func (o *SNTimeDurationConstraint) InitWithEnumeratedDurations(enumeratedDurations *foundation.NSArray[*foundation.NSValue]) *SNTimeDurationConstraint

Initializes an enumerated-type constraint. - Parameter enumeratedDurations: A discrete set of duration values (represented as CMTime values boxed in NSValue instances) permitted by this constraint. - Returns: An instance whose `type` is `SNTimeDurationConstraintTypeEnumerated`, and which constrains duration values to the provided set of discrete values.

func (*SNTimeDurationConstraint) Type 

func (o *SNTimeDurationConstraint) Type() SNTimeDurationConstraintType

The time constraint type. The value of this property dictates whether or not other properties associated with this class can be validly accessed. Please refer to the documentation of other individual properties to understand their relationship to this one. This property is always valid to access.

type SNTimeDurationConstraintType 

type SNTimeDurationConstraintType int64
const (
	// An 'enumerated' constraint type. In order for a duration to satisfy a constraint of this type, it must be a member of a particular set of discrete permissible values.
	SNTimeDurationConstraintTypeEnumerated SNTimeDurationConstraintType = 1
	// A 'range' constraint type. In order for a duration to satisfy a constraint of this type, it must be a member of a particular continuous range of permissible values.
	SNTimeDurationConstraintTypeRange SNTimeDurationConstraintType = 2
)

func (SNTimeDurationConstraintType) String 

func (e SNTimeDurationConstraintType) String() string

type Virtual_memory_guard_exception_code_t 

type Virtual_memory_guard_exception_code_t int64
const (
	KGUARD_EXC_DEALLOC_GAP                   Virtual_memory_guard_exception_code_t = 1
	KGUARD_EXC_RECLAIM_COPYIO_FAILURE        Virtual_memory_guard_exception_code_t = 2
	KGUARD_EXC_RECLAIM_INDEX_FAILURE         Virtual_memory_guard_exception_code_t = 4
	KGUARD_EXC_RECLAIM_DEALLOCATE_FAILURE    Virtual_memory_guard_exception_code_t = 8
	KGUARD_EXC_RECLAIM_ACCOUNTING_FAILURE    Virtual_memory_guard_exception_code_t = 9
	KGUARD_EXC_SEC_IOPL_ON_EXEC_PAGE         Virtual_memory_guard_exception_code_t = 10
	KGUARD_EXC_SEC_EXEC_ON_IOPL_PAGE         Virtual_memory_guard_exception_code_t = 11
	KGUARD_EXC_SEC_UPL_WRITE_ON_EXEC_REGION  Virtual_memory_guard_exception_code_t = 12
	KGUARD_EXC_LARGE_ALLOCATION_TELEMETRY    Virtual_memory_guard_exception_code_t = 13
	KGUARD_EXC_SEC_ACCESS_FAULT              Virtual_memory_guard_exception_code_t = 98
	KGUARD_EXC_SEC_ASYNC_ACCESS_FAULT        Virtual_memory_guard_exception_code_t = 99
	KGUARD_EXC_SEC_COPY_DENIED               Virtual_memory_guard_exception_code_t = 100
	KGUARD_EXC_SEC_SHARING_DENIED            Virtual_memory_guard_exception_code_t = 101
	KGUARD_EXC_MTE_SYNC_FAULT                Virtual_memory_guard_exception_code_t = 200
	KGUARD_EXC_MTE_ASYNC_USER_FAULT          Virtual_memory_guard_exception_code_t = 201
	KGUARD_EXC_MTE_ASYNC_KERN_FAULT          Virtual_memory_guard_exception_code_t = 202
	KGUARD_EXC_GUARD_OBJECT_ASYNC_USER_FAULT Virtual_memory_guard_exception_code_t = 203
	KGUARD_EXC_GUARD_OBJECT_ASYNC_KERN_FAULT Virtual_memory_guard_exception_code_t = 204
)

func (Virtual_memory_guard_exception_code_t) String 

func (e Virtual_memory_guard_exception_code_t) String() string

type Xpc_listener_create_flags_t 

type Xpc_listener_create_flags_t int64
const (
	XPC_LISTENER_CREATE_NONE             Xpc_listener_create_flags_t = 0
	XPC_LISTENER_CREATE_INACTIVE         Xpc_listener_create_flags_t = 1
	XPC_LISTENER_CREATE_FORCE_MACH       Xpc_listener_create_flags_t = 2
	XPC_LISTENER_CREATE_FORCE_XPCSERVICE Xpc_listener_create_flags_t = 4
)

func (Xpc_listener_create_flags_t) String 

func (e Xpc_listener_create_flags_t) String() string

type Xpc_session_create_flags_t 

type Xpc_session_create_flags_t int64
const (
	XPC_SESSION_CREATE_NONE            Xpc_session_create_flags_t = 0
	XPC_SESSION_CREATE_INACTIVE        Xpc_session_create_flags_t = 1
	XPC_SESSION_CREATE_MACH_PRIVILEGED Xpc_session_create_flags_t = 2
)

func (Xpc_session_create_flags_t) String 

func (e Xpc_session_create_flags_t) String() string

Source Files

View all Source files

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.