GNOME Bugzilla – Bug 163101
[videomixer] Segmentation fault in videomixer plugin
Last modified: 2005-11-21 19:49:20 UTC
The following pipeline: gst-launch videotestsrc ! ffmpegcolorspace ! videomixer ! ffmpegcolorspace ! xvimagesink causes a segmentation fault. The reason for this is that the width, height and framerate parameters are set incorrectly for the videomixer pads during negotiation. (Running it at debug level 5 shows this clearly) Changing the caps template for framerate, width and height in videomixer from a range to a int results in this pipeline working correctly.
no segfault for me with this pipeline but the window stays definitively black/empty. using CVS of everything
The reason that you don´t see it is because your PCU doesn´t SIGFPE on FP-0. The framerate is indeed zero. Videomixer does not do bidirectional capsnego, which is a videomixer bug.
On closer look, I don´t think you can use videomixer without filtercaps. Ask its author if you need that feature...
Works fine in HEAD now.