VCDoc - unaWave

VCDoc

Unit

VCDoc.unaWave

Description

Set of routines to work with PCM wave data.

Author

Lake

Version

2.5.2008.07 Still here

Types

Type	Description
punaPCMChunk
punaPCMFormat
punavclWavePipeFormatExchange	Pointer to unavclWavePipeFormatExchange.
punaWaveFormat

Routines

Method	Description
waveExtractChannel	Extracts specified channel from PCM chunk.
waveFindNextGcd	Returns next gcd value.
waveGetChunkCurSamplesCount	Returns current number of full samples which is stored in given PCM chunk.
waveGetChunkMaxSamplesCount	Returns number of full samples which can be stored in given PCM chunk.
waveGetLogVolume	Returns Logarithmic volume.
waveGetLogVolume100	Returns Logarithmic volume.
waveGetVolume	Calculates volume. Calculation is done by adding squares of samples and then dividing result on number of samples and applying square root.
waveMix
waveMix	Mixes buf1 and buf2 and stores the result in buf3 (buf3 could be one of buf1 or buf2).
waveModifyVolume100	Modifies linear volume for all samples.
waveModifyVolume100
waveReadFromChunk	Reads bytes from PCM chunk.
waveReallocateChunk	Reallocates PCM chunk to hold required number of samples.
waveReplaceChannel	Replaces PCM data for specified channel with new one. Old data for this channel will be lost.
waveResample	Changes PCM stream characteristics.
waveResample	Changes PCM stream characteristics.
waveReverse	Reverses PCM samples in wave chunk.
waveWriteToChunk	Writes bytes to PCM chunk.

Classes/Records

Class	Description
unaPCMChunk
unaPCMFormat
unavclWavePipeFormatExchange	Data structure used for format exchange.
unaWaveFormat