LEAD G.726 Encoder

The LEAD G.726 Encoder is a DirectShow filter for compressing audio data using the G.726 compression as defined in RFC 3551, and it supersedes both the G.721 and G.723 codecs. This ADPCM speech codec covers the transmission of voice at rates of 16, 24, 32, and 40 kbit/s.

Technical details for the filter are provided in the following table: 

Filter Interfaces

ILMG726Encoder, ILMMCommon

Interface ID

IID_ILMG726Encoder

Input Media Types

Type:
MEDIATYPE_Audio

Subtype:
MEDIASUBTYPE_PCM

Output Media Types

Type:
MEDIATYPE_Audio

Subtype:
WAVE_FORMAT_G726

Filter CLSID

CLSID_LMG726Encoder

Property Page CLSID

CLSID_LMG726EncoderProperty

Executable

LCodcG726.dll, DSKernel2.dll

Filter category

CLSID_AudioCompressorCategory

Header

ILCodcG726.h

Note: Media types are defined in the LGUIDs.h header file.

Platforms

Win32, x64

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