Microsoft DirectShow is an extensible, filter-based framework, based on the Microsoft Windows Component Object Model (COM), that provides a common interface for mediaacross many of Microsoft's programming languages. Most video-related Windows applications, such as Microsoft's Windows Media Player, Winamp, and Windows Movie Maker, use DirectShow to manage multimedia content.

LEAD Elementary Stream Writer Filter

Show in webframe

The LEAD Elementary Stream Writer Filter is a DirectShow filter that can be used to split a single file into separate files that are typically later merged back together by the LEAD Elementary Stream Source Filter. Together, these filters provide support for distributing the task of transcoding a single file across multiple computers.

This filter is responsible for splitting the source file into the specified number of pieces (set in the ILTESWriter Interface), which can then be transcoded separately by one or more computers. The output of this filter can either be a LTESC (LEADTOOLS Elementary Stream Catalog) file, or a LTES (LEADTOOLS Elementary Stream) file. A catalog file is an index which contains information about each file split from the original (file location, timestamps, etc). When the transcoding of each split file is complete, the pieces can then be merged back into a single file using the LEAD Elementary Stream Source Filter.

This filter supports the standard IFileSinkFilter interface. Use the IFileSinkFilter::SetFileName method to let the LEAD Elementary Stream Writer filter know where to write the output. Please see the Microsoft documentation for this interface for more information.

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

Filter Interface(s)	ILTESWriter
Interface ID	IID_ILTESWriter
Input Media Types	The LEAD Elementary Stream Writer can accept any media type as input. You can specify the target format (TargetFormat Property) to emulate a specific multiplexer. However, if you do so the input types will be restricted to the same input types as the multiplexer it is trying to emulate.
Output Media Types	Type: MEDIATYPE_Video Subtype: MEDIASUBTYPE_LTES GUID MEDIASUBTYPE_LTESC
Filter CLSID	CLSID_LTESWriter
Property Page(s) CLSID	LTESWriterPropPage
Filter category	CLSID_VideoCompressorCategory
Executable	LTESWrt.dll, DSKernel2.dll
Header	ILTESWriter.h

Platforms

Win32, x64