OutputAudioQueue Class
Definition
Important
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The output AudioQueue.
public class OutputAudioQueue : AudioToolbox.AudioQueuetype OutputAudioQueue = class
inherit AudioQueue- Inheritance
Remarks
Use this class to playback audio.
You will usually create an OutputAudioQueue instance and allocate a number of buffers that you will use to fill in with data. Once a buffer is filled, the buffer is enqueued and when the OutputAudioQueue has finished playing it back, the OutputCompleted event will be raised.
See the StreamingAudio sample program in monotouch-samples for an example program.
Constructors
| OutputAudioQueue(AudioStreamBasicDescription) |
Creates an OutputAudioQueue. |
| OutputAudioQueue(AudioStreamBasicDescription, CFRunLoop, CFString) |
Creates an OutputAudioQueue, specifying on which run loop events are delivered. |
| OutputAudioQueue(AudioStreamBasicDescription, CFRunLoop, String) |
Creates an OutputAudioQueue, specifying on which run loop events are delivered. |
Fields
| gch | (Inherited from AudioQueue) |
| handle | (Inherited from AudioQueue) |
Properties
| AudioStreamDescription | (Inherited from AudioQueue) |
| AudioStreamPacketDescription |
Obsolete.
The audio queue's AudioStreamBasicDescription. (Inherited from AudioQueue) |
| ChannelLayout |
The audio queue channel layout. (Inherited from AudioQueue) |
| ConverterError |
Contains the most recent error generated in the audio queue's encoding or decoding process. (Inherited from AudioQueue) |
| CurrentDevice |
Unique identifier for the device associated with this Audio Queue. (Inherited from AudioQueue) |
| CurrentLevelMeter |
Current Level meters, one per channel in the range zero (minimum) to one (maximum). (Inherited from AudioQueue) |
| CurrentLevelMeterDB |
Current Level meters, one per channel in decibels. (Inherited from AudioQueue) |
| CurrentTime |
Returns the current time for the hardware device. (Inherited from AudioQueue) |
| DecodeBufferSizeFrames | (Inherited from AudioQueue) |
| DeviceChannels | (Inherited from AudioQueue) |
| EnableLevelMetering |
Enables level metering on the audio queue. (Inherited from AudioQueue) |
| Handle |
Handle (pointer) to the unmanaged object representation. (Inherited from AudioQueue) |
| HardwareCodecPolicy | (Inherited from AudioQueue) |
| IsRunning | (Inherited from AudioQueue) |
| MagicCookie |
Audio metadata required by certain formats. (Inherited from AudioQueue) |
| MaximumOutputPacketSize | (Inherited from AudioQueue) |
| Pan | (Inherited from AudioQueue) |
| SampleRate | (Inherited from AudioQueue) |
| Volume |
The volume (Inherited from AudioQueue) |
| VolumeRampTime | (Inherited from AudioQueue) |
Methods
| AddListener(AudioQueueProperty, AudioQueue+AudioQueuePropertyChanged) |
Use this method to track changes to the audio queue properties. (Inherited from AudioQueue) |
| AllocateBuffer(Int32, AudioQueueBuffer*) |
Allocates an audio buffer associated with this AudioQueue (Inherited from AudioQueue) |
| AllocateBuffer(Int32, IntPtr) |
Allocates an audio buffer associated with this AudioQueue, used for fixed bit rate buffers. (Inherited from AudioQueue) |
| AllocateBufferWithPacketDescriptors(Int32, Int32, IntPtr) |
Allocates an audio queue object for variable-bit-rate buffers. (Inherited from AudioQueue) |
| CreateProcessingTap(AudioQueueProcessingTapDelegate, AudioQueueProcessingTapFlags, AudioQueueStatus) |
Creates a processing tap in the AudioQueue. (Inherited from AudioQueue) |
| CreateTimeline() |
Creates a timeline object that can be used to track discontinuities in the audio queue's audio. (Inherited from AudioQueue) |
| DisableOfflineRender() |
Disables the offline renderer. |
| Dispose() |
Releases the resources used by the AudioQueue object. (Inherited from AudioQueue) |
| Dispose(Boolean) |
Releases the resources used by the AudioQueue object. (Inherited from AudioQueue) |
| EnqueueBuffer(AudioQueueBuffer*, AudioStreamPacketDescription[]) |
Adds a buffer to the buffer queue of an audio queue. (Inherited from AudioQueue) |
| EnqueueBuffer(AudioQueueBuffer*, Int32, AudioStreamPacketDescription[], Int32, Int32, AudioQueueParameterEvent[], AudioTimeStamp) |
Adds a buffer that should play as soon as possible to the buffer queue of a playback audio queue. (Inherited from AudioQueue) |
| EnqueueBuffer(AudioQueueBuffer*, Int32, AudioStreamPacketDescription[], Int32, Int32, AudioQueueParameterEvent[], AudioTimeStamp, AudioTimeStamp) |
Adds a buffer to the buffer queue of a playback audio queue, specifying start time and parameters. (Inherited from AudioQueue) |
| EnqueueBuffer(IntPtr, AudioStreamPacketDescription[]) | (Inherited from AudioQueue) |
| EnqueueBuffer(IntPtr, Int32, AudioStreamPacketDescription[]) |
Adds a buffer to the buffer queue of an audio queue. (Inherited from AudioQueue) |
| EnqueueBuffer(IntPtr, Int32, AudioStreamPacketDescription[], Int32, Int32, AudioQueueParameterEvent[], AudioTimeStamp) |
Adds a buffer that should play as soon as possible to the buffer queue of a playback audio queue. (Inherited from AudioQueue) |
| EnqueueBuffer(IntPtr, Int32, AudioStreamPacketDescription[], Int32, Int32, AudioQueueParameterEvent[], AudioTimeStamp, AudioTimeStamp) |
Adds a buffer to the buffer queue of a playback audio queue, specifying start time and parameters. (Inherited from AudioQueue) |
| Flush() | (Inherited from AudioQueue) |
| FreeBuffer(IntPtr) |
Releases an AudioQueue buffer. (Inherited from AudioQueue) |
| GetCurrentTime(AudioQueueTimeline, AudioTimeStamp, Boolean) |
Returns the current time for the audio queue. (Inherited from AudioQueue) |
| GetNearestStartTime(AudioTimeStamp) | (Inherited from AudioQueue) |
| GetProperty(AudioQueueProperty, Int32) |
Low-level API to fetch AudioQueue properties. (Inherited from AudioQueue) |
| GetProperty(AudioQueueProperty, Int32, IntPtr) |
Low-level API to fetch AudioQueue properties. (Inherited from AudioQueue) |
| GetProperty<T>(AudioQueueProperty) |
Low-level API to fetch AudioQueue properties. (Inherited from AudioQueue) |
| OnBufferCompleted(IntPtr) | |
| Pause() | (Inherited from AudioQueue) |
| Prime(Int32, Int32) |
Used to prepare the audio buffers to play back and ensure that there is data ready to be played by the audio hardware. (Inherited from AudioQueue) |
| QueueDispose() | (Inherited from AudioQueue) |
| RemoveListener(AudioQueueProperty, AudioQueue+AudioQueuePropertyChanged) | (Inherited from AudioQueue) |
| RenderOffline(Double, AudioQueueBuffer*, Int32) |
Writes audio data to an audio buffer, instead of to a device. |
| Reset() | (Inherited from AudioQueue) |
| SetChannelAssignments(AudioQueueChannelAssignment[]) | (Inherited from AudioQueue) |
| SetOfflineRenderFormat(AudioStreamBasicDescription, AudioChannelLayout) |
Enables offline rendering by setting the audio format and optionally the channel layout to use when rendering. |
| SetProperty(AudioQueueProperty, Int32, IntPtr) | (Inherited from AudioQueue) |
| Start() |
Starts the audio queue. (Inherited from AudioQueue) |
| Start(AudioTimeStamp) | (Inherited from AudioQueue) |
| Stop(Boolean) |
Stops the AudioQueue. (Inherited from AudioQueue) |
| TranslateTime(AudioTimeStamp) | (Inherited from AudioQueue) |
Events
| BufferCompleted |