auelement(3) [debian man page]
AuElement(3) Library Functions Manual AuElement(3) Name AuElement - AuElement union Structures #include <audio/audiolib.h> typedef union _AuElement { unsigned short type; AuElementImportClient importclient; AuElementImportDevice importdevice; AuElementImportBucket importbucket; AuElementImportWaveForm importwaveform; AuElementBundle bundle; AuElementMultiplyConstant multiplyconstant; AuElementAddConstant addconstant; AuElementSum sum; AuElementExportClient exportclient; AuElementExportDevice exportdevice; AuElementExportBucket exportbucket; AuElementExportMonitor exportmonitor; }AuElement; Members type Specifies the element type. Currently, one of these constants: AuElementTypeAddConstant, AuElementTypeBundle, AuElementTypeEx- portBucket, AuElementTypeExportClient, AuElementTypeExportDevice, AuElementTypeExportMonitor, AuElementTypeImportClient, AuEle- mentTypeImportDevice, AuElementTypeImportBucket, AuElementTypeImportWaveForm, AuElementTypeMultiplyConstant, or AuElementTypeSum. importclient Used to read audio data from a client application. importdevice Used to read audio data from a device. importbucket Used to read audio data from a bucket. importwaveform Used to read audio data from a waveform generator. bundle Used to access tracks in audio data. multiplyconstant Used to scale the value of samples in audio data. addconstant Used to offset the value of samples in audio data. sum Used to merge together samples from different inputs. exportclient Used to write audio data to a client application. exportdevice Used to write audio data to a device. exportbucket Used to write audio data to a bucket. exportmonitor Used to write monitor data to a client application. Description Elements are instructions to the server on how to handle the audio data in a flow. See Also AuMakeElementAddConstant, AuMakeElementBundle, AuMakeElementImportClient, AuMakeElementImportDevice, AuMakeElementImportBucket, AuMakeEle- mentImportWaveForm, AuMakeElementExportClient, AuMakeElementExportDevice, AuMakeElementExportBucket, AuMakeElementExportMonitor, AuMakeEle- mentMultiplyConstant, AuMakeElementSum, AuReadElement, AuSetElements, AuSetElementParameters, AuWriteElement. audiolib - Network Audio System C Language Interface audiolib - element union 1.9.3 AuElement(3)
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AuMakeElementExportClient(3) Library Functions Manual AuMakeElementExportClient(3) Name AuMakeElementExportClient - initialize an ExportClient element Synopsis #include <audio/audiolib.h> AuMakeElementExportClient(element, input, sample_rate, format, num_tracks, discard, max_samples, high_water_mark, num_actions, actions) AuElement *element; /* RETURN */ unsigned short input; unsigned short sample_rate; unsigned char format; unsigned char num_tracks; unsigned char discard; AuUint32 max_samples; AuUint32 high_water_mark; int num_actions; AuElementAction *actions; Arguments element Returns the initialized element. input Specifies the index of the element to supply the audio data to this element. sample_rate Specifies the sample rate of the audio data. format Specifies the format of the audio data. Currently, the following formats are defined: AuFormatULAW8, AuFormatLinearUnsigned8, AuFormatLinearSigned8, AuFormatLinearSigned16MSB, AuFormatLinearUnsigned16MSB, AuFormatSignedLinear16LSB, and AuFormatLinearUn- signed16LSB. num_tracks Specifies the number of tracks in the audio data. discard Specifies if the flow should pause initially. Normally AuTrue. max_samples Specifies the maximum number of samples to send to the client in a single write. Ignored for "trivial" flows. high_water_mark Specifies when to tell the client application to read the audio data from the server. When this number of samples is reached in the buffer, an ElementNotify event with kind set to AuElementNotifyKindHighWater will be sent to the client application. num_actions Specifies the number of actions in actions. actions Specifies the list of actions to associate with this element. Entries in this list can be initialized with AuMakeChangeStateAc- tion, AuMakeSendNotifyAction, and AuMakeNoopAction. May be NULL. Description AuMakeElementExportClient sets the type member of element to AuElementTypeExportClient and initializes the exportclient member of element with the remaining arguments. AuMakeElementExportClient is implemented as a macro. See Also AuElementNotifyEvent, AuMakeElementAddConstant, AuMakeElementBundle, AuMakeElementExportBucket, AuMakeElementExportDevice, AuMakeElementEx- portMonitor, AuMakeElementImportBucket, AuMakeElementImportClient, AuMakeElementImportDevice, AuMakeElementImportWaveForm, AuMakeElement- MultiplyConstant, AuMakeElementSum. audiolib - Network Audio System C Language Interface audiolib - element initialization 1.9.3 AuMakeElementExportClient(3)