AudioPresentation Class
Definition
Important
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The AudioPresentation class encapsulates the information that describes an audio presentation which is available in next generation audio content.
[Android.Runtime.Register("android/media/AudioPresentation", ApiSince=28, DoNotGenerateAcw=true)]
public sealed class AudioPresentation : Java.Lang.Object, Android.OS.IParcelable, IDisposable[<Android.Runtime.Register("android/media/AudioPresentation", ApiSince=28, DoNotGenerateAcw=true)>]
type AudioPresentation = class
inherit Object
interface IParcelable
interface IJavaObject
interface IDisposable
interface IJavaPeerable- Inheritance
- Attributes
- Implements
Remarks
The AudioPresentation class encapsulates the information that describes an audio presentation which is available in next generation audio content.
Used by MediaExtractorMediaExtractor#getAudioPresentations(int) and AudioTrackAudioTrack#setPresentation(AudioPresentation) to query available presentations and to select one, respectively.
A list of available audio presentations in a media source can be queried using MediaExtractor#getAudioPresentations(int). This list can be presented to a user for selection. An AudioPresentation can be passed to an offloaded audio decoder via AudioTrack#setPresentation(AudioPresentation) to request decoding of the selected presentation. An audio stream may contain multiple presentations that differ by language, accessibility, end point mastering and dialogue enhancement. An audio presentation may also have a set of description labels in different languages to help the user to make an informed selection.
Applications that parse media streams and extract presentation information on their own can create instances of AudioPresentation by using AudioPresentation.Builder class.
Java documentation for android.media.AudioPresentation.
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.
Fields
| Name | Description |
|---|---|
| ContentCommentary |
Obsolete.
Audio presentation content classifier: Commentary. |
| ContentDialog |
Obsolete.
Audio presentation content classifier: Dialog. |
| ContentEmergency |
Obsolete.
Audio presentation content classifier: Emergency. |
| ContentHearingImpaired |
Obsolete.
Audio presentation content classifier: Hearing impaired. |
| ContentMain |
Obsolete.
Audio presentation classifier: Complete main. |
| ContentMusicAndEffects |
Obsolete.
Audio presentation content classifier: Music and effects. |
| ContentUnknown |
Obsolete.
Audio presentation classifier: Unknown. |
| ContentVisuallyImpaired |
Obsolete.
Audio presentation content classifier: Visually impaired. |
| ContentVoiceover |
Obsolete.
Audio presentation content classifier: Voice over. |
| MasteredFor3d |
Obsolete.
Three-dimensional (e. |
| MasteredForHeadphone |
Obsolete.
Prerendered for headphone playback. |
| MasteredForStereo |
Obsolete.
Stereo speaker layout. |
| MasteredForSurround |
Obsolete.
Two-dimensional (e. |
| MasteringNotIndicated |
Obsolete.
No preferred reproduction channel layout. |
| PresentationIdUnknown |
Unknown audio presentation ID, this indicates audio presentation ID is not selected. |
| ProgramIdUnknown |
Unknown audio program ID, this indicates audio program ID is not selected. |
Properties
| Name | Description |
|---|---|
| Class |
Returns the runtime class of this |
| Creator | |
| Handle |
The handle to the underlying Android instance. (Inherited from Object) |
| HasAudioDescription |
Indicates whether an audio description for the visually impaired is available. |
| HasDialogueEnhancement |
Indicates whether dialogue enhancement is available. |
| HasSpokenSubtitles |
Indicates whether spoken subtitles for the visually impaired are available. |
| JniIdentityHashCode |
Gets the identity hash code assigned to this Java peer by the interop runtime. (Inherited from Object) |
| JniManagedPeerState | (Inherited from JavaObject) |
| JniPeerMembers | |
| Labels | |
| Locale | |
| MasteringIndication | |
| PeerReference |
Gets the JNI object reference for this Java peer. (Inherited from Object) |
| PresentationId |
Returns presentation ID used by the framework to select an audio presentation rendered by a decoder. |
| ProgramId |
Returns program ID used by the framework to select an audio presentation rendered by a decoder. |
| ThresholdClass |
This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. (Inherited from Object) |
| ThresholdType |
This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. (Inherited from Object) |
Methods
| Name | Description |
|---|---|
| Clone() |
Creates and returns a copy of this object. (Inherited from Object) |
| Construct(JniObjectReference, JniObjectReferenceOptions) | (Inherited from JavaObject) |
| DescribeContents() |
Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. |
| Dispose() |
Releases the resources held by this Java peer. (Inherited from Object) |
| Dispose(Boolean) |
Releases the resources held by this Java peer. (Inherited from Object) |
| DisposeUnlessReferenced() | (Inherited from JavaObject) |
| Equals(Object) | (Inherited from JavaObject) |
| Equals(Object) |
Indicates whether some other object is "equal to" this one. (Inherited from Object) |
| GetHashCode() |
Returns a hash code value for the object. (Inherited from Object) |
| JavaFinalize() |
Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. (Inherited from Object) |
| Notify() |
Wakes up a single thread that is waiting on this object's monitor. (Inherited from Object) |
| NotifyAll() |
Wakes up all threads that are waiting on this object's monitor. (Inherited from Object) |
| SetHandle(IntPtr, JniHandleOwnership) |
Sets the Handle property. (Inherited from Object) |
| SetPeerReference(JniObjectReference, JniObjectReferenceOptions) | (Inherited from JavaObject) |
| ToArray<T>() |
Creates a managed array from this Java array wrapper. (Inherited from Object) |
| ToString() |
Returns a string representation of the object. (Inherited from Object) |
| UnregisterFromRuntime() |
Unregisters this Java peer from the interop runtime. (Inherited from Object) |
| Wait() |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>. (Inherited from Object) |
| Wait(Int64, Int32) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
| Wait(Int64) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
| WriteToParcel(Parcel, ParcelableWriteFlags) |
Flatten this object in to a Parcel. |
Explicit Interface Implementations
| Name | Description |
|---|---|
| IJavaPeerable.Disposed() | (Inherited from JavaObject) |
| IJavaPeerable.Finalized() | (Inherited from JavaObject) |
| IJavaPeerable.JniObjectReferenceControlBlock | (Inherited from JavaObject) |
| IJavaPeerable.SetJniIdentityHashCode(Int32) | (Inherited from JavaObject) |
| IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates) | (Inherited from JavaObject) |
| IJavaPeerable.SetPeerReference(JniObjectReference) | (Inherited from JavaObject) |
| IJavaPeerable.UnregisterFromRuntime() | |
Extension Methods
| Name | Description |
|---|---|
| GetJniTypeName(IJavaPeerable) |
Gets the JNI name of the type of the instance |
| JavaAs<TResult>(IJavaPeerable) |
Try to coerce |
| JavaCast<TResult>(IJavaObject) |
Performs an Android runtime-checked type conversion. |
| JavaCast<TResult>(IJavaObject) | |
| TryJavaCast<TResult>(IJavaPeerable, TResult) |
Try to coerce |