As stated in the upstream bug report (3 years ago!), it seems to depend on the gstreamer plugin in use, because I get this other error message when trying to play an mms:// (this also work fine without authentication)
** Message: Error: Could not open resource for reading and writing.
gstrtspsrc.c(4862): gst_rtspsrc_open (): /GstPlayBin2:play/GstURIDecodeBin:uridecodebin0/GstRTSPSrc:source:
Could not connect to server. (Network error: Host name lookup failure)
@Trey Ethridge: Can you confirm that this is an Ubuntu specific bug?
For me (Ubuntu 10.04) it works when there is no proxy and when the proxy doesn't need authentication.
For example, with the youtube plugin, I get this message when I try to play a video:
gstsouphttpsrc. c(1096) : gst_soup_ http_src_ parse_status (): /GstPlayBin2: play/GstURIDeco deBin:uridecode bin1/GstSoupHTT PSrc:source:
407 Proxy Authentication Required
As stated in the upstream bug report (3 years ago!), it seems to depend on the gstreamer plugin in use, because I get this other error message when trying to play an mms:// (this also work fine without authentication)
** Message: Error: Could not open resource for reading and writing. play/GstURIDeco deBin:uridecode bin0/GstRTSPSrc :source:
gstrtspsrc.c(4862): gst_rtspsrc_open (): /GstPlayBin2:
Could not connect to server. (Network error: Host name lookup failure)