RTCP Extension For Time Alignment - PowerPoint PPT Presentation

RTCP Extension For Time Alignment draft-taylor-avt-time-align-00.txt Tom Taylor et al IETF 66

Draft Contents • Statement of problem and requirements • Definition of a time alignment feedback message • Time alignment procedures

Sender . . schedule . Y Later X Sender and receiver W V aligned Jitter U T Buffer S R Q P O N Late arrival M L On time arrival K Early arrival J I H G F E D C B A Receiver A B C D E F G H I J K L M N O P Q R S T U V W X Y ... schedule

Sender . . schedule . Y Later X Without time alignment W V Jitter U Extra T Buffer S R Q P O N Late arrival M L On time arrival K Early arrival J I H G F E D Receiver C B A B C D E F G H I J K L M N O P Q R S T U V W X Y ... schedule A

Sender . . Alignment Process schedule . Y NB: no change in timestamp increment X Conceptual W V short Jitter U packet T Buffer S R Q P O N M L K J I H G F E D Receiver C B A B C D E F G H I J N O P Q R S T U V W X Y ... schedule A

Sender . . Alignment Process schedule . Y If change in timestamp increment X Conceptual W V short Jitter U packet T Buffer S R Q P O N M L K J I H G F E D Receiver C B A B C D E F G H I J N O P Q R S T U V W X Y ... schedule A