DVR  Module API

The DVR Module adds onto the Multimedia Module. For more information on the Multimedia Module, click here.

The following table describes the components included in the DVR Module:

DLL-

Interface / CLSID

Header

Comments

Help Files

Demo Project Source Code

C:\MM\dist\Examples\Ltmm\Cpp

LMMpgDmxP.DLL -

IID_ILMMpgDmx /

CLSID_LMMpgDmxP

ILMMpgDmxP.h

ILMMpgDmxCommon.h

The LEAD MPEG-2 Program Demultiplexer is used for playing MPEG2 Program and MPEG1 System files. Can also play raw video (MPEG2, MPEG4, H264) or audio (MPEG Audio Layer I, II, III, AAC, AC3).

 Filters Help

\DVR\DVR.vcproj

\MPEG2Transport\MPEG2Transport.vcproj

LMDVRSink.DLL -

IID_ILMDVRSink /

CLSID_LMDVRSink

ILMDVRSink.h

The LEAD DVR Sink Filter employs the LEAD intelligent time-shifting algorithm and is used to write live video/audio streams to disk for playback. Complete control of the buffer size is provided, including support for having the buffer span more than one disk. Used in conjunction with the LEAD DVR Source Filter.

Filters Help

\DVR\DVR_x86.vcproj

\MPEG2Transport\MPEG2Transport.vcproj

LMDVRSource.DLL

IID_ILMDVRSource /

CLSID_LMDVRSource

ILMDVRSource.h

The LEAD DVR Source Filter is used to read video and audio streams from files created by the LEAD DVR Sink Filter. This filter allows the LEAD Player Control to play, pause, rewind, and fast forward live streams.

Filters Help

 

LEncMPG42.DLL -

IID_ILMMP42Encoder / CLSID_LMMP4Encoder

ILEncMPEG4_2.h

The LEAD MPEG-4 Encoder is a DirectShow filter for compressing video data using the MPEG-4 standard (ISO/IEC 14496-2). MPEG-4 is suitable for a wide range of bandwidths from low bandwidth to broadband.  In addition to MP4 files, MPEG4 compressed video data can be stored inside AVI or OGG files with the option of saving the file with or without the audio data.

Filters Help

\ConvertToMobile\ConvertToMobile.vcproj

\NetServer\NetServer.vcproj

LDecMPG42.DLL -

None / CLSID_LMMP4Decoder

{E2B7DD6A-38C5-11D5-91F6-00104BDB8FF9}

 

N/A

 

The LEAD MPEG-4 Decoder is a DirectShow filter for decompressing Video data using the MPEG-4 standard (ISO/IEC 14496-2). MPEG-4 is suitable for a wide range of bandwidths from low bandwidth to broadband. In addition to MP4 files, MPEG4 compressed video data can be stored inside AVI or OGG files with the option of saving the file with or without the audio data.

Filters Help

 

LENCH2643.DLL -

IID_ILMH264Encoder / CLSID_LMH264Encoder

ILEncH2644.h

The LEAD H264 Encoder is a DirectShow filter for compressing and decompressing video data using the H.264/AVC standard.

Filters Help

\ConvertToMobile\ConvertToMobile.vcproj

\NetServer\NetServer.vcproj

LDECH2643.DLL -

N/A /

CLSID_ILMH264Decoder

N/A

The LEAD H264 Decoder is a DirectShow decoder that can decompress video compressed by any H264 codec.

Filters Help

 

LENCMPG2.dll -

IID_ILMMPG2Encoder /

CLSID_LMMPEG2Encoder

ILEncMPEG2_2.h

The LEAD MPEG-2 Encoder Filter is a DirectShow filter for compressing video data using the MPEG-2 (ISO/IEC 13818-2) or MPEG-1 (ISO 11172-2) standard.

Filters Help

 

LDECMPG2.dll -

N/A /

CLSID_LMMPEG2Decoder

N/A

The LEAD MPEG-2 Decoder Filter is a DirectShow filter for decompressing video data that was compressed using the MPEG-2 (ISO/IEC 13818-2) or MPEG-1 (ISO 11172-2) standard.

Filters Help

 

LEncAAC.DLL - IID_ILMAACEncoder / CLSID_LMAACEncoder

 

ILEncAAC.h

 

The LEAD AAC Encoder is a DirectShow filter for compressing audio data using the AAC compression standard (ISO/IEC 13818-7).

Filters Help

\ConvertToMobile\ConvertToMobile.vcproj

LDecAAC.DLL -

IID_ILMAACDecoder /

CLSID_LMAACDecoder

ILDecAAC.h

 

The LEAD AAC Decoder is a DirectShow filter for decompressing audio data using the AAC compression standard (ISO/IEC 13818-7).

Filters Help

 

LEncMpgA.dll -

N/A /

CLSID_LMAMpgEncoder

N/A

The LEAD MPEG Audio Encoder is a DirectShow filter for compressing Audio data using the MPEG-1 Layer 2 audio compression standard (ISO/IEC 11172-3). This audio format can be multiplexed into an MPEG-1 or MPEG-2 file. Use this audio codec when you create MPEG-1 or MPEG-2 (DVD) files.

Filters Help

 

LMMpg2Mx2.DLL -

N/A /

CLSID_LMMpeg2Mux

N/A

 

The LEAD MPEG-2 Multiplexer can be used to create MPEG-2 files.

Filters Help

 

 

LMVFramCtrl2.dll -

IID_ILMVFrameRateCtrl /

CLSID_LMVFrameRateCtrl

ILMVFramCtrl2.h

The LEAD Video Frame Rate Controller filter provides the ability to change the frame rate of the passing video stream.

 Filters Help

\ConvertToMobile\ConvertToMobile.vcproj

LMVCrop2.dll -

IID_ILMVCrop /

CLSID_LMVCrop

LMVCrop2.h

The LEAD Video Crop filter is used to extract areas from a source movie, a graphical representation is provided to show and modify the desired rectangle position and size. The cropped rectangle can be as small as 1x1.

Filters Help

 

LMVDeitr2.dll -

IID_ILMVDeinterlace / CLSID_LMVDeinterlace

ILMVDeinterlace2.h

The LEAD Video Deinterlace filter converts interlaced video to make it a progressive scan video.

Filters Help

\ConvertToMobile\ConvertToMobile.vcproj

LMVRsz2.dll -

IID_ILMVResize /

CLSID_LMVResize

ILMVRsz2.h

The LEAD Video Resize filter is used to change the dimensions of a source movie; the result is a new media, with new dimensions and size. The resize filter offers three types of resizing algorithms; Resample, Bicubic interpolation, and Normal.

Filters Help

\ConcatAndResize\ConcatAndResize.vcproj

\ConvertToMobile\ConvertToMobile.vcproj

\DVDAuthor\DVDAuthor.vcproj

LMVRot2.dll -

IID_ILMVRotation / CLSID_LMVRotation

ILMVRot2.h

The LEAD Video Rotation filter enables rotating a video stream by the standard angles; 0, 90, 180, and 270 in addition to flip and reverse options

Filters Help

 

The LEADTOOLS DVR Module API provides the lowest level of support.

For a complete list of the DirectShow filters, codecs and modules, please see the following topics:

Multimedia DirectShow filters

DICOM DirectShow filters