SolveigMM Video Editing SDK is intended for designing Windows based smart video/audio editing applications with support of wide range of video codec types like H265/HEVC, H264/AVC, MPEG-2 Video, Windows Media, DivX, etc. and multimedia formats – AVCHD, MP4, MKV, MOV, FLV, WEBM, MPEG-1, MPEG-2, ASF/WMV/WMA, AVI, MP3, WMA using SolveigMM Video Editing Engine. The SDK is composed of editing components to be DLLs, COM objects and DirectShow filters, Visual C++, C#, VB.Net, VB 6.0, Delphi, PHP sample applications, developer reference manual and API.
SolveigMM Video Editing Engine, being actively developed since 2005, supports a number of editing operations – trimming and cutting out an arbitary number of fragments from input pre-encoded files in fast and lossless modes with Frame or K-Frame accuracy; multiplexing video and audio streams to different output formats; demultiplexing inputs to elementary video/audio; re-multiplexing one format to another; lossless media files merging; muting particular audio fragments without re-encoding, etc.
Updates: official site does not provide any info about changes in this version.