Hi I am trying to test a video call using PJSIP version 2.0 and video GUI sample application that comes with PJSIP. I am running the application on Windows 7. However the application neither shows any preview from the camera in the preview window nor it shows Video coming from the other side once the call is established. I looked into the SDPs and m line for video was negotiated successfully. Looking the logs of application, I get following error: 15:55:44.142 ffmpeg_vid_cod ...The H263-1998 decoder is using base codec (H263) 15:55:44.142 dshow_dev.c ...Failed initializing DShow: COM library already initialized with incompatible concurrency model 15:55:44.142 colorbar_dev.c ...Colorbar video src initialized with 1 device(s): Any idea about the error coming from dshow_dev.c file? Thanks Kchitiz -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20120703/625f2314/attachment.html>