<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 TRANSITIONAL//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; CHARSET=UTF-8"> <META NAME="GENERATOR" CONTENT="GtkHTML/4.6.6"> </HEAD> <BODY TEXT="#000000" BGCOLOR="#ffffff"> Le mardi 27 mai 2014 à 15:53 +0200, Auslands-KV a écrit : <BLOCKQUOTE TYPE=CITE> Can you elaborate on this? How to reduce "configured latency"? There is even a patch in Qt5.3.1 which adds "sync=false" to live media. So, if this is not a good idea, what is the alternative? (As I said, in my experiments sync=true gave latency of 3-5 seconds and a very problematic behaviour if some RTP packets have been lost, resulting in large dropout of several seconds. So far, sync=false runs perfectly for me, reducing latency to less than 1 second and making the system much more immune againt lost RTP packets.) </BLOCKQUOTE> Please read Tim answer to that, rtspsrc has a latency property (in ms). By default it's configured to 2 seconds (2000) which is added to the server latency and network latency. Many other element can be configured like this. Setting sync=false will also break libsync btw. So for rtsp is not desired. Nicolas </BODY> </HTML>