这个是专门用来分析ts流PSI信息的filter，可以分析PAT表、PMT表，及相应的PID值。-The PSI Parser filter receives Program Specific Information (PSI) from an MPEG-2 transport stream and extracts program information from the Program Association Table (PAT) and Program Map Tables (PMT).

Mpeg2 TS 音视频解析程序，根据媒体的pid类型解析出音视频类型及格式。-Mpeg2 TS audio and video parse program, it pase out the media type by pid type.