LEAD H264 Encoder (4.0)

The LEAD H264 Encoder is a DirectShow filter for compressing and decompressing 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, OGG or ISO Base files with the option of saving the file with or without the audio data.

The encoder can use Intel Quick Sync Video hardware acceleration for compression once the libmfxsw32/64.dll is installed properly. For more information, refer to How to Enable High Profiles and Hardware Compression in the LEAD H.264 Encoder.

The encoder can use NVIDIA CUDA hardware acceleration on computers with NVIDIA graphics cards with CUDA capabilities. You do not need to install anything in addition to the video driver; hardware acceleration will be used automatically if possible. For more information about the supported CUDA technology, refer to Using H264 and H265 Encoders on NVIDIA GPUs. For more information on which NVIDIA hardware supports H264, refer to CUDA Hardware Support.

The H264 video has a maximum video size. H264 video should follow this formula:

((Width + 15) / 16) * ((Height + 15) / 16) <= 36864

Some maximum video sizes: 3840x2448, 2448x2840, 4096x2304, etc.

NOTE: If you are using the encoder with a third-party software package, refer to your software's documentation for information on how to access the encoder's property page(s). If you do not have an application for converting multimedia files, you can download M2Convert Pro from http://www.m2solutionsinc.com/.

The compression options for the encoder can be set manually through the encoder's property page, or programmatically using the filter interface.

Filter Interface(s) ILMH264Encoder
Interface ID IID_ILMH264Encoder
Input Media Types Type:
MEDIATYPE_Video Subtypes:
MEDIASUBTYPE_RGB32
MEDIASUBTYPE_RGB24
MEDIASUBTYPE_YUY2
MEDIASUBTYPE_UYVY
MEDIASUBTYPE_YV12
MEDIASUBTYPE_I420
Output Media Types Type:
MEDIATYPE_Video

Subtype:
MEDIASUBTYPE_L264
MEDIASUBTYPE_LX64
MEDIASUBTYPE_h264
MEDIASUBTYPE_H264
ISOMEDIATYPE_avc1
MEDIASUBTYPE_avc1
MEDIASUBTYPE_AVC1

Type:
MEDIATYPE_Stream

Subtype:
MEDIASUBTYPE_h264
Filter CLSID CLSID_LMH264Encoder
Property Page(s) CLSID CLSID_LMH264EncoderProperty
Filter category CLSID_VideoCompressorCategory
Executable LENCH2644.dll, DSKernel2.dll, libmfxsw32.dll (32-bit) or libmfxsw64.dll (64-bit)
Header ILEncH2644.h

Platforms

Win32, x64

This filter is included as part of the following modules:

LEAD H.264 Video Encoder Module

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