Package apple.avfoundation

Class AVAudioFormat

  • All Implemented Interfaces:
    NSCoding, NSSecureCoding, NSObject
    public class AVAudioFormat
extends NSObject
implements NSSecureCoding
    AVAudioFormat A representation of an audio format. AVAudioFormat wraps a Core Audio AudioStreamBasicDescription struct, with convenience initializers and accessors for common formats, including Core Audio's standard deinterleaved 32-bit floating point. Instances of this class are immutable.

    • Constructor Detail

      • AVAudioFormat

        protected AVAudioFormat​(org.moe.natj.general.Pointer peer)

    • Method Detail

      • accessInstanceVariablesDirectly

        public static boolean accessInstanceVariablesDirectly()

      • allocWithZone

        public static java.lang.Object allocWithZone​(org.moe.natj.general.ptr.VoidPtr zone)

      • automaticallyNotifiesObserversForKey

        public static boolean automaticallyNotifiesObserversForKey​(java.lang.String key)

      • cancelPreviousPerformRequestsWithTarget

        public static void cancelPreviousPerformRequestsWithTarget​(java.lang.Object aTarget)

      • cancelPreviousPerformRequestsWithTargetSelectorObject

        public static void cancelPreviousPerformRequestsWithTargetSelectorObject​(java.lang.Object aTarget,
                                                                         org.moe.natj.objc.SEL aSelector,
                                                                         java.lang.Object anArgument)

      • classFallbacksForKeyedArchiver

        public static NSArray<java.lang.String> classFallbacksForKeyedArchiver()

      • classForKeyedUnarchiver

        public static org.moe.natj.objc.Class classForKeyedUnarchiver()

      • debugDescription_static

        public static java.lang.String debugDescription_static()

      • description_static

        public static java.lang.String description_static()

      • hash_static

        public static long hash_static()

      • instanceMethodSignatureForSelector

        public static NSMethodSignature instanceMethodSignatureForSelector​(org.moe.natj.objc.SEL aSelector)

      • instancesRespondToSelector

        public static boolean instancesRespondToSelector​(org.moe.natj.objc.SEL aSelector)

      • isSubclassOfClass

        public static boolean isSubclassOfClass​(org.moe.natj.objc.Class aClass)

      • keyPathsForValuesAffectingValueForKey

        public static NSSet<java.lang.String> keyPathsForValuesAffectingValueForKey​(java.lang.String key)

      • new_objc

        public static java.lang.Object new_objc()

      • resolveClassMethod

        public static boolean resolveClassMethod​(org.moe.natj.objc.SEL sel)

      • resolveInstanceMethod

        public static boolean resolveInstanceMethod​(org.moe.natj.objc.SEL sel)

      • setVersion_static

        public static void setVersion_static​(long aVersion)

      • superclass_static

        public static org.moe.natj.objc.Class superclass_static()

      • supportsSecureCoding

        public static boolean supportsSecureCoding()

      • version_static

        public static long version_static()

      • channelCount

        public int channelCount()
        [@property] channelCount The number of channels of audio data.

      • channelLayout

        public AVAudioChannelLayout channelLayout()
        [@property] channelLayout The underlying AVAudioChannelLayout, if any. Only formats with more than 2 channels are required to have channel layouts.

      • commonFormat

        public long commonFormat()
        [@property] commonFormat An `AVAudioCommonFormat` identifying the format

      • formatDescription

        public CMFormatDescriptionRef formatDescription()
        [@property] formatDescription Converts to a CMAudioFormatDescriptionRef, for use with Core Media API's.

      • initStandardFormatWithSampleRateChannelLayout

        public AVAudioFormat initStandardFormatWithSampleRateChannelLayout​(double sampleRate,
                                                                   AVAudioChannelLayout layout)
        initStandardFormatWithSampleRate:channelLayout: Initialize to deinterleaved float with the specified sample rate and channel layout.
        Parameters:
        sampleRate - the sample rate
        layout - the channel layout. must not be nil.

      • initStandardFormatWithSampleRateChannels

        public AVAudioFormat initStandardFormatWithSampleRateChannels​(double sampleRate,
                                                              int channels)
        initStandardFormatWithSampleRate:channels: Initialize to deinterleaved float with the specified sample rate and channel count. If the format specifies more than 2 channels, this method fails (returns nil).
        Parameters:
        sampleRate - the sample rate
        channels - the channel count

      • initWithCMAudioFormatDescription

        public AVAudioFormat initWithCMAudioFormatDescription​(CMFormatDescriptionRef formatDescription)
        initWithCMAudioFormatDescription: initialize from a CMAudioFormatDescriptionRef. If formatDescription is invalid, this method fails (returns nil).
        Parameters:
        formatDescription - the CMAudioFormatDescriptionRef.

      • initWithCommonFormatSampleRateChannelsInterleaved

        public AVAudioFormat initWithCommonFormatSampleRateChannelsInterleaved​(long format,
                                                                       double sampleRate,
                                                                       int channels,
                                                                       boolean interleaved)
        initWithCommonFormat:sampleRate:channels:interleaved: Initialize to float with the specified sample rate, channel count and interleavedness. If the format specifies more than 2 channels, this method fails (returns nil).
        Parameters:
        format - the common format type
        sampleRate - the sample rate
        channels - the channel count
        interleaved - true if interleaved

      • initWithCommonFormatSampleRateInterleavedChannelLayout

        public AVAudioFormat initWithCommonFormatSampleRateInterleavedChannelLayout​(long format,
                                                                            double sampleRate,
                                                                            boolean interleaved,
                                                                            AVAudioChannelLayout layout)
        initWithCommonFormat:sampleRate:interleaved:channelLayout: Initialize to float with the specified sample rate, channel layout and interleavedness.
        Parameters:
        format - the common format type
        sampleRate - the sample rate
        interleaved - true if interleaved
        layout - the channel layout. must not be nil.

      • initWithSettings

        public AVAudioFormat initWithSettings​(NSDictionary<java.lang.String,​?> settings)
        initWithSettings: Initialize using a settings dictionary. See AVAudioSettings.h. Note that many settings dictionary elements pertain to encoder settings, not the basic format, and will be ignored. Returns nil if a format cannot be constructed with the provided settings, e.g. when: - AVNumberOfChannelsKey specifies more than 2 channels, but AVChannelLayoutKey hasn't been specified or the layout does not match - AVLinearPCMBitDepthKey for linear PCM format specifies less than 8 or greater than 32 bits - values for the keys are not of the expected types

      • initWithStreamDescription

        public AVAudioFormat initWithStreamDescription​(AudioStreamBasicDescription asbd)
        initWithStreamDescription: Initialize from an AudioStreamBasicDescription. If the format specifies more than 2 channels, this method fails (returns nil).
        Parameters:
        asbd - the AudioStreamBasicDescription

      • initWithStreamDescriptionChannelLayout

        public AVAudioFormat initWithStreamDescriptionChannelLayout​(AudioStreamBasicDescription asbd,
                                                            AVAudioChannelLayout layout)
        initWithStreamDescription:channelLayout: Initialize from an AudioStreamBasicDescription and optional channel layout. If the format specifies more than 2 channels, this method fails (returns nil) unless layout is non-nil.
        Parameters:
        asbd - the AudioStreamBasicDescription
        layout - the channel layout. Can be nil only if asbd specifies 1 or 2 channels.

      • isEqual

        public boolean isEqual​(java.lang.Object object)
        isEqual: Determine whether another format is functionally equivalent. For PCM, interleavedness is ignored for mono. Differences in the AudioStreamBasicDescription alignment and packedness are ignored when they are not significant (e.g. with 1 channel, 2 bytes per frame and 16 bits per channel, neither alignment, the format is implicitly packed and can be interpreted as either high- or low-aligned.) For AVAudioChannelLayout, a layout with standard mono/stereo tag is considered to be equivalent to a nil layout. Otherwise, the layouts are compared for equality.
        Specified by:
        isEqual in interface NSObject
        Overrides:
        isEqual in class NSObject
        Parameters:
        object - the format to compare against

      • isInterleaved

        public boolean isInterleaved()
        [@property] interleaved Describes whether the samples are interleaved. For non-PCM formats, the value is undefined.

      • isStandard

        public boolean isStandard()
        [@property] standard Describes whether the format is deinterleaved native-endian float.

      • magicCookie

        public NSData magicCookie()
        [@property] magicCookie The underlying magic cookie, if any. A magic cookie contains metadata associated with encoders and decoders. Encoders produce a magic cookie, and some decoders require a magic cookie to decode properly.

      • sampleRate

        public double sampleRate()
        [@property] sampleRate A sampling rate in Hertz.

      • setMagicCookie

        public void setMagicCookie​(NSData value)
        [@property] magicCookie The underlying magic cookie, if any. A magic cookie contains metadata associated with encoders and decoders. Encoders produce a magic cookie, and some decoders require a magic cookie to decode properly.

      • settings

        public NSDictionary<java.lang.String,​?> settings()
        [@property] settings Returns the format represented as a dictionary with keys from AVAudioSettings.h.

      • streamDescription

        public AudioStreamBasicDescription streamDescription()
        [@property] streamDescription Returns the AudioStreamBasicDescription, for use with lower-level audio API's.

      • _supportsSecureCoding

        public boolean _supportsSecureCoding()
        Description copied from interface: NSSecureCoding
        This property must return YES on all classes that allow secure coding. Subclasses of classes that adopt NSSecureCoding and override initWithCoder: must also override this method and return YES. The Secure Coding Guide should be consulted when writing methods that decode data.
        Specified by:
        _supportsSecureCoding in interface NSSecureCoding