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LEAD H264 Encoder (DMO) (4.0)

The LEAD H264 Encoder (DMO) is a DirectX Media Object (DMO) filter for compressing video data using the H.264/AVC standard. The H.264 standard is the latest video standard developed jointly by ITU and MPEG. The H.264/AVC standard provides a far more efficient algorithm for compressing video. It typically outperforms all existing standards by a factor of three to four especially in comparison to MPEG-2.

H264 is a high quality video compression algorithm suited for all types of applications with different ranges of bit rates. The compressed video data can be stored inside AVI or OGG files with the option of saving the file with or without the audio data.

The compression options for the Encoder can be set manually through the encoder property page. The compression options can also be set programmatically using the filter interface.

LEAD H.264 Encoder property page

The encoding options for the LEAD H264 Encoder Filter (DMO) and LEAD H264 Encoder Filter Advanced (DMO) are the same as the encoding options for the LEAD H264 Encoder (a DirectShow® filter), except for the super compression option which is:

These codecs are designed to work with the Microsoft Windows Media Encoder program. This is part of the Windows Media Server technology package, which was designed to stream video over the Internet. For more information on the Windows Media Encoder, you should refer to the Microsoft documentation on MSDN.

These DMO encoders should be used with the Quality VBR encoding mode since that is what the Windows Media Encoder uses. In addition, the following encoding options of the LEAD H264 Encoder Filter need to be adjusted for the Windows Media Encoder as follows:

Microsoft values 1-2 become a LEAD value of 1.

Microsoft values 3-4 become a LEAD value of 2.

Microsoft values 5-6 become a LEAD value of 3 .

Microsoft values 7-8 become a LEAD value of 4

.

.

.

Microsoft values 99-100 become a LEAD value of 50 .

NOTES:

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

Component Description
Filter Interface(s) N/A
Interface ID N/A
Input Media Types Type:
MEDIATYPE_Video
Subtypes:
MEDIASUBTYPE_RGB32
MEDIASUBTYPE_RGB24
Output Media Types Type:
MEDIATYPE_Video
Subtype:
MEDIASUBTYPE_L264
Filter CLSID N/A
Property Page(s) CLSID N/A
Filter Category CLSID_VideoCompressorCategory
Executable LENCH2644.dll, DSKernel2.dll
Header N/A
Profiles See LEAD H264 Codecs Profile Support

Comments

This filter is included as part of LEAD H264 Video Encoder Module.

Platforms

Win32, x64.

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© 1991-2022 LEAD Technologies, Inc. All Rights Reserved.