DirectShow简介

DirectShow Object

DirectShow 基本概念

Filter

Filter Pin

Filter Graph

Filter Graph Manager

使用DirectShow的步骤

学习资料

DirectShow摄像头和虚拟摄像头
https://www.jianshu.com/p/37c8de76271a
windows桌面采集（GDI、DSHOW、DXGI对比）
https://www.jianshu.com/p/0bbfc6fab6b4