ILMAC3Encoder Interface

This is the interface for the LEAD AC3 Encoder.

Interface Properties:

Type

Name

Description

long

OutputBitrate

Sets the output bitrate of the compressed audio data. The bitrate is the average number of bits that one second of audio data will take up in the compressed bitstream. The bitrate represents the strength of compression. It also influences quality: the higher the bitrate, the higher the quality.

The unit of measure for the bitrate is in kbps. To calculate the number of bytes per second of audio data, divide the bitrate value by eight.

The following bitrate values are valid: {32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384, 448, 512, 576, 640}.

eAC3OutputChannels

OutputChannelsFlag

An enumeration that specifies the number of output channels. The following values are possible:

LENCAC3_UNCHANGED: The number of output channels equals the number of input channels.
LENCAC3_FORCE_MONO:  There is 1 output channel.
LENCAC3_FORCE_STEREO: There are 2 output channels.
LENCAC3_FORCE_6CHANNELS:  There are 6 output channels.

BOOL

SimulateSurround

Enables or disables surround sound simulation. The following values are possible:

TRUE:  Enables surround sound simulation.

FALSE: Disables surround sound simulation. 

This property is used only if the LENCAC3_FORCE_6CHANNELS eAC3OutputChannels value is selected.

long OutputSampleRate

The output sample rate, in samples per second (Hz).

The following values are possible: {32000, 44100, 48000}.

enum 
{ 
   LENCAC3_UNCHANGED = 0, 
   LENCAC3_FORCE_MONO = 1, 
   LENCAC3_FORCE_STEREO = 2, 
   LENCAC3_FORCE_6CHANNELS = 6 
} eAC3OutputChannels; 

Help Version 19.0.2017.10.19
Products | Support | Contact Us | Copyright Notices
© 1991-2017 LEAD Technologies, Inc. All Rights Reserved.
LEADTOOLS Filters C API Help