VCDoc - unaMsAcmClasses

VCDoc

Class Tree

Unit

VCDoc.unaMsAcmClasses

Description

Contains Microsoft ACM wrapper and core VC wave device classes.

Author

Lake

Version

2.5.2008.07:
+ new callback model;
+ SetVolume100()/GetVolume() for all wave components;
+ Silence detection built in into all wave components;

Types

Type	Description
punaAcmDetails	ACM Details record.
tunaAcmDetailsType	ACM Details enumeration.
unaAcmCodecDriverMode
unaDspSignalData
unaDspSignalDataSize
unaOnRiffStreamIsDone
unaWaveDataEvent	This event is used to inform the class owner about new data when it becomes available.
unaWaveHeader
unaWaveInSDMethods
unaWaveOnThresholdEvent

Constants

Constant	Description
c_defSamplingBitsPerSample
c_defSamplingChannelMask
c_defSamplingNumChannels
c_defSamplingSamplesPerSec

Variables

Variable	Description
c_defChunksPerSecond	Number of chunks per second (in real time mode)
c_defRecordingChunksAheadNum	Number of chunks to put into waveIn recording queue (does not afftect the latency).

Routines

Method	Description
duplicateFormat
duplicateFormat
duplicateFormat
duplicateFormat
fillFormatExt
fillPCMFormat	Fills the WAVEFORMATEX structure according to the specified sampling parameters.
fillPCMFormat	Fills the WAVEFORMATEX structure according to the specified sampling parameters.
fillPCMFormatExt
fillPCMFormatExt	Fills the PWAVEFORMATEXTENSIBLE structure according to the specified sampling parameters.
format2str	Returns string representation of audio format.
formatChoose	Helper function for acm_formatChoose routine.
formatChooseAlloc	Displays format choose dialog.
formatEqual	Returns true if two formats are equal.
formatTag2str	Returns string representation of some audio format tags, or #NNN if tag is unknown.
getFormatTagExt
isPCMFormat
isPCMFormatExt
mmGetErrorCodeText	Returns text message describing the specified errorCode
mmGetErrorCodeTextEx	Same as mmGetErrorCodeText(), but additionally prefixes the result
mmNoError	Returns true if specified errorCode is equal to MMSYSERR_NOERROR.
newWaveHdr	Creates new wave header.
removeWaveHdr	Destroys header object.
sampling2str	Returns string representation of PCM sampling parameters.
str2waveFormatExt
waveExt2str
waveExt2wave
waveFormatExt2str

Classes/Records

Class	Description
unaAcmDetails
unaMMTimer	Multimedia timer wrapper class.
unaMsAcm	This class holds a list of drivers installed on the system.
unaMsAcmCodec	This class is wrapper over Windows Multimedia streams API. Create it specifying the driver you wish to use with the stream.
unaMsAcmCodecHeader	This class stores the data used by MS ACM codec.
unaMsAcmDeviceHeader	Base class for storing the wave and stream headers of wave and ACM devices.
unaMsAcmDriver	List of installed drivers is maintained by unaMsAcm class, so usually there is no need to create/destroy the driver class explicitly.
unaMsAcmFilter	This class stores information about the given MS ACM filter.
unaMsAcmFilterTag	This class stores information about an ACM filter tag.
unaMsAcmFormat	This class stores information about the given MS ACM format.
unaMsAcmFormatTag	This class stores information about an ACM format tag.
unaMsAcmObject	This base class is designed to store an ACM object, such as format or filter.
unaMsAcmObjectTag	This base class is designed to store the information about an ACM object tag, such as format tag or filter tag.
unaMsAcmStreamDevice	This is abstract class used as a base for classes dealing with audio streams (codecs, waveIn and waveOut, mixers).
unaRiffStream	RIFF WAVE stream.
unaWaveDevice	This abstract class is used as base for unaWaveInDevice (recorder) and unaWaveOutDevice (playback) devices.
unaWaveExclusiveMixerDevice	This class performs exclusive mixing of input streams.
unaWaveInDevice	Use this class to record live audio.
unaWaveMixerDevice	This class performs software mixing of input streams.
unaWaveMultiStreamDevice	This is base class for devices working with more than two streams.
unaWaveOutDevice	Use this class to playback PCM audio stream.
unaWaveResampler	This class can resample audio stream from one PCM format to another.
unaWaveSoftwareDevice	This is base class for software devices, such as wave mixer.