Class TMdaAudioDataSettings

class TMdaAudioDataSettings : public TMdaDatatypeSettings;

Description

The settings for audio data played through the media server.

These can be the settings for an audio clip, for streamed audio data, or can be the capabilities of the sound device. The sample rate and number of channels apply to the audio sample, the maximum volume applies to the output device and the volume setting can apply to either, depending on the device. An object of this class is a public data member of class CMdaAudioType and also can be passed to CMdaAudioOutputStream::Open().

Derivation

• TMdaRawPackage - Abstract base class for all media server package types

• TMdaPackage - A data structure used to package messages (that include the package type) sent between the media server and its clients

• TMdaDatatypeSettings - Datatype parameters

• TMdaAudioDataSettings - The settings for audio data played through the media server

Members

Defined in TMdaAudioDataSettings:
EChannelsMono, EChannelsStereo, ENoLocalRouting, ENoNetworkRouting, ERealTime, ERoutingControl, ESampleRate11025Hz, ESampleRate12000Hz, ESampleRate16000Hz, ESampleRate22050Hz, ESampleRate24000Hz, ESampleRate32000Hz, ESampleRate44100Hz, ESampleRate48000Hz, ESampleRate64000Hz, ESampleRate8000Hz, ESampleRate96000Hz, ESampleRateAnyInRange, ESampleRateFixed, Query(), TAudioCaps, TAudioFlags, TMdaAudioDataSettings(), iCaps, iChannels, iFlags, iMaxVolume, iSampleRate, iVolume

Inherited from TMdaPackage:
SetUid(), Type(), Uid(), operator==()

Inherited from TMdaRawPackage:
Package(), SetSize(), iThis

See also:

• CMdaAudioType
• CMdaAudioOutputStream::Open()

inline TMdaAudioDataSettings();

Description

Default constructor. The member data is not initialised.

inline void Query();

Description

Sets the number of channels, the sample rate and the volume to KMdaUnknown (–1). Call this function when you only want to have the iCaps and iMaxVolume members filled.

TAudioCaps

Description

Audio capabilities, which include the sample rate and number of channels. The iCaps member is a combination of these flags.

ESampleRateFixed If specified, the sample rate iSampleRate is the only one supported. If not specified, multiple sample rates may be supported. ESampleRateAnyInRange If specified, all sample rates between the minimum and the maximum are supported. ESampleRate8000Hz The audio sample supports a sample rate of 8.000KHz. ESampleRate11025Hz The audio sample supports a sample rate of 11.025KHz. ESampleRate12000Hz The audio sample supports a sample rate of 12.000KHz. ESampleRate16000Hz The audio sample supports a sample rate of 16.000KHz. ESampleRate22050Hz The audio sample supports a sample rate of 22.000KHz. ESampleRate24000Hz The audio sample supports a sample rate of 24.000KHz. ESampleRate32000Hz The audio sample supports a sample rate of 32.000KHz. ESampleRate44100Hz The audio sample supports a sample rate of 44.100KHz. ESampleRate48000Hz The audio sample supports a sample rate of 48.000KHz. ESampleRate96000Hz The audio sample supports a sample rate of 96.000KHz. ESampleRate64000Hz The audio sample supports a sample rate of 64.000KHz. EChannelsMono The audio sample supports mono. EChannelsStereo The audio sample supports stereo. ERoutingControl Routing related ERealTime True if data flow is synchronised with real time (e.g. stream)

TAudioFlags

Description

Mutually exclusive flags that specify whether audio data is sent to the local device (speakers) or the network (phone line) or both. The iFlags member uses these flags.

ENoLocalRouting The sound data is only sent to the network. ENoNetworkRouting The sound data is only sent to the local device.

TInt iCaps;

Description

Specifies the capabilities of the audio sample. Its value is a combination of the flags contained in the TAudioCaps enum.

TInt iMaxVolume;

Description

The maximum volume of the audio device.

TInt iSampleRate;

Description

The sample rate of the audio sample.

TInt iChannels;

Description

The number of channels for the audio sample.

TInt iVolume;

Description

The volume. Whether this applies to the audio device or to the audio sample is device-dependent.

TInt iFlags;

Description

The flags. Its value can be either of the flags contained in the TAudioFlags enum.