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LEAD MPEG2 Program Demultiplexer

The LEAD MPEG2 Program Demultiplexer is a DirectShow filter that can parse the following types of streams:

  1. MPEG-2 Program specified in ISO/IEC 13818-1

  2. MPEG-1 System specified in ISO/IEC 11172-1

  3. Elementary stream data (also known as raw video or raw audio data)

The first two formats are multiplexed formats, and they can contain video, audio and private data streams. The video compression can be MPEG1 (ISO/IEC 11172-2), MPEG2 (ISO/IEC 13818-2), MPEG4 (ISO/IEC 14496-2), H.264 (ISO/IEC 14496-10) or H.265 (ISO/IEC 23008_2). The audio compression can be MPEG1 (ISO/IEC 11172-3), AC3, LPCM or AAC.

This filter does NOT support MPEG-2 Transport streams defined in ISO/IEC 13818-1. Those streams are supported in the LEAD MPEG2 Transport Demultiplexer.

This filter does NOT support private data. For private data support, please use the LEAD MPEG2 Transport Demultiplexer.

The demultiplexer works in pull mode, so it will connect to source filters that expose the IAsyncReader interface. IAsyncReader is a standard Microsoft interface. Please consult the Microsoft documentation for more information on IAsyncReader.

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

Component Description
Filter Interfaces ILMMpgDmx
Interface ID IID_ILMMpgDmx
Input Media Types Type:
MEDIATYPE_Stream
Subtypes:
MEDIASUBTYPE_NULL
MEDIASUBTYPE_MPEG2_PROGRAM
MEDIASUBTYPE_MPEG1Video
MEDIASUBTYPE_MPEG1System
MEDIASUBTYPE_UDPStream
MEDIASUBTYPE_MPEG1Audio
Output Media Types Depends on the type of data being parsed. The most common output media types are:
Type:
MEDIATYPE_Video
Subtypes:
MEDIASUBTYPE_MPEG1Payload
MEDIASUBTYPE_MPEG2_VIDEO
MEDIASUBTYPE_MP4V
MEDIASUBTYPE_avc1
MEDIASUBTYPE_L264
MEDIASUBTYPE_h264
MEDIASUBTYPE_h265
MEDIASUBTYPE_MP4V
Type:
MEDIATYPE_Audio
Subtypes:
MEDIASUBTYPE_MPEG1AudioPayload
MEDIASUBTYPE_MPEGLAYER3
MEDIASUBTYPE_DOLBY_AC3
MEDIASUBTYPE_DVD_LPCM_AUDIO
MEDIASUBTYPE_AAC
MEDIASUBTYPE_SAMR (only for raw files)
Filter CLSID CLSID_LMMpgDmxP
Property Page CLSID N/A
Executable LMMpgDmxP.dll, DSKernel2.dll
Filter category CLSID_LegacyAmFilterCategory
Header ILMMpgDmxP.h and ILMMpgDmxCommon.h

Comments

This filter is included as part of the following modules:

Platforms

Win32, x64, Mobile.

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