BASS.NET API for the Un4seen BASS Audio LibraryBassBASS_ChannelGetLevel Method (Int32, Single, Single, BASSLevel)BASS.NET API for the Un4seen BASS Audio Library
Retrieves the level (peak amplitude) of a sample, stream, MOD music or recording channel.

Namespace: Un4seen.Bass
Assembly: Bass.Net (in Bass.Net.dll) Version: 2.4.12.0
Syntax

[DllImportAttribute("bass.dll", EntryPoint = "BASS_ChannelGetLevelEx", 
	CharSet = CharSet.Unicode)]
public static bool BASS_ChannelGetLevel(
	int handle,
	float[] levels,
	float length,
	BASSLevel flags
)

Parameters

handle
Type: SystemInt32
The channel handle... a HCHANNEL, HMUSIC, HSTREAM, or HRECORD.
levels
Type: SystemSingle
The array in which the levels are to be returned.
length
Type: SystemSingle
How much data (in seconds) to look at to get the level (limited to 1 second).
flags
Type: Un4seen.BassBASSLevel
What levels to retrieve. One of the following (see BASSLevel):
BASS_LEVEL_ALLRetrieves a separate level for each channel.
BASS_LEVEL_MONORetrieve a single mono level.
BASS_LEVEL_STEREOGet a stereo level. The left level will be from the even channels, and the right level will be from the odd channels. If there are an odd number of channels then the left and right levels will both include all channels.
BASS_LEVEL_RMSFlag: Get the RMS level. Otherwise the peak level.

Return Value

Type: Boolean
On success is returned - else , use BASS_ErrorGetCode to get the error code.

If successful, the requested levels are returned in the levels array.

Remarks

This function operates in the same way as BASS_ChannelGetLevel(Int32) but has greater flexibility on how the level is measured. The levels are not clipped, so may exceed +/-1.0 on floating-point channels.

ERROR CODEDescription
BASS_ERROR_HANDLEhandle is not a valid channel.
BASS_ERROR_NOPLAYThe channel is not playing.
BASS_ERROR_ENDEDThe decoding channel has reached the end.
BASS_ERROR_BUFLOSTShould not happen... check that a valid window handle was used with BASS_Init(Int32, Int32, BASSInit, IntPtr, IntPtr).

See Also

Reference