EXFO EXpert IPTV Test Tools (FTB-200v2) - Manual (Page 8)

8
7.1 S IMULTANEOUS T ESTING OF M ULTIPLE C HANNELS ................................................................. 22
7.2 P ASSIVE T EST .................................................................................................................. 22
7.3 S ET T OP B OX E MULATION T EST .......................................................................................... 24
7.4 E THERNET I NTERFACE S TATUS .............................................................................................. 25
CHAPTER 8 GETTING IPTV METRICS .................................................................................... 26
8.1 B ASIC IPTV M ETRICS T EST ................................................................................................ 26
Definitions: ............................................................................................................................ 27
8.2
L IVE S TREAM P REVIEW ....................................................................................................... 28
8.3 A DVANCED IPTV M ETRICS T EST ........................................................................................... 29
8.3.1 V IDEO P ERCEPTUAL Q UALITY M ETRICS ............................................................................... 29
8.3.2 T RANSPORT P ACKET M ETRICS ............................................................................................... 31
8.3.3. MPEG‐TS TR 101290 P RIORITY ..................................................................................... 33
8.3.4 A UDIO D ESCRIPTION AND P ERCEPTUAL M ETRICS I NFORMATION ............................................... 35
8.3.5 V IDEO F RAME M ETRICS .................................................................................................. 37
8.3.6. V IDEO B ANDWIDTH ....................................................................................................... 39
8.3.7 M ETRICS IN G RAPHICAL F ORM ‐ H ISTOGRAMS ...................................................................... 40
CHAPTER 9 GENERATING AND VIEWING TEST RESULTS ...................................................... 41
9.1 T EST R ESULTS L OG ............................................................................................................. 41
9.1.1 A CCESSING T EST R ESULTS ................................................................................................. 41
APPENDIX A ......................................................................................................................... 47
A.1 U NDERSTANDING IPTV V IDEO P ERCEPTUAL Q UALITY * ............................................................ 47
A.1.1 T RANSMISSION ‐R ELATED I MPAIRMENTS ............................................................................. 48
A.1.2.2 Performance of Video Coders ................................................................................. 55
A.2
VQ MON /HD Q UALITY A NALYSIS A LGORITHM * ..................................................................... 57
A.2.1 V IDEO S TREAM A NALYSIS ................................................................................................ 57
A.2.1.1 TR 101 290 Metrics Collection ................................................................................. 58
A.2.1.2 Playout Buffer Emulator ......................................................................................... 58
A.2.1.3 Content Analysis ..................................................................................................... 58
A.2.1.4 Frame Type Detection ............................................................................................ 59
A.2.1.5 Per‐frame Quality Analysis ..................................................................................... 59