| Sommario: | The popularity of interactive video streaming applications have pushed researchers to propose mechanisms for supporting these applications over the Internet. Several studies showed that interactive operations are well supported if the end-to-end delay, experienced by the application traffic, is kept lower than a pre-defined, and application dependent, threshold. Recently, it has been proposed a new approach that acts on the video QoS (by dropping frame) in order to provide interactive features to the supported applications. The mechanism has been designed for transmitting videos encoded with intra-frame technique (Motion JPEG). The contribution of this paper is to evaluate the mechanism with MPEG videos. This evaluation is important in order to better understand the behavior of the mechanism, as inter-frame techniques, like MPEG, are more and more used and it is more difficult to drop frames in MPEG streams. Further, since the mechanism acts on the video QoS, we also present a QoS evaluation of the perceived video play out quality. |
