Hi Fabio, >I am working on a ARM video server streaming a H264 flow of data over RTP >protocol. >I am using appsrc module to inject data into the pipeline. >The server must start/stop streaming on remote-request basis; I am working on the similar functionality for my hobby project (www.gitorious.org/veter/pages/Home) and were also facing different problems with restarting pipeline. That is why I decide to completely destroy/create pipeline instead of pausing it. It does not take much time to (re)create the pipeline and this delay is not really a problem for the interactive users. Sorry for not answering your question directly, but I thought that the idea could be used at least as a workaround in your case. Regards, Andrey.