USB摄像头SDK

1. capture filter- > audio / video encoder & multiplexer -> MPEG2 demux // // ---------------------- --------------------------------------- --------------- // | v| ---> | | | | // | Capture Filter | | Audio / video encoder & Multiplexer | ->| MPEG2 demux | // | a| ---> | | | | // ---------------------- --------------------------------------- ---- ----------- // // // // // // -> audio encoder -> // 2. capture filter multiplexer -> MPEG2 demux // -> video encoder -> // // ----------------------- ----------------- ---------------- --------------- // | a| -> | audio encoder | -> | | | | // | | ----------------- | | | | // | capture filter | | multiplexer | -> | MPEG2 demux | // | | ----------------- | | | | // | v| -> | video encoder | -> | | | | // ----------------------- ----------------- ---------------- ---------------