Evaluation of RTP immediate feedback and retransmission extensions [video streaming applications]

Author

Kropfberger, M. ; Hellwagne, Hermann

Author_Institution

Dept. of Inf. Technol., Klagenfurt Univ., Austria

Volume

3

fYear

2004

fDate

27-30 June 2004

Firstpage

1751

Abstract

Modern video streaming servers should adapt, and switch quality levels of, the streamed data according to precise and timely feedback about the network conditions, and should also incorporate selective retransmissions of important reference frames (I- and P-VOPs). This work evaluates two recent IETF Internet drafts on RTP (real time transport protocol) extensions for immediate feedback and retransmission and shows, in conjunction with temporal video adaptation, how a substantial visual quality gain can be achieved by using those extensions (up to 4.4 dB PSNR under lossy conditions).

Keywords

adaptive signal processing; state feedback; transport protocols; video servers; video streaming; RTP immediate feedback; RTP retransmission extensions; lossy transmission conditions; network conditions feedback; packet retransmission; quality level switching; real time transport protocol; reference frame selective retransmission; temporal video adaptation; video streaming servers; visual quality gain; Bandwidth; Feedback; Fluctuations; Information technology; Internet; Modems; Prefetching; Protocols; Streaming media; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia and Expo, 2004. ICME '04. 2004 IEEE International Conference on

Print_ISBN

0-7803-8603-5

Type

conf

DOI

10.1109/ICME.2004.1394593

Filename

1394593