This one crashes immediately on start up before you even send any data to it. Thanks for looking. Bert Douglas # rtp-client.sh caps="application/x-rtp,media=(string)video,clock-rate=(int)90000,encoding-name=(string)RAW,sampling=(string)YCbCr-4:2:2,depth=(string)8,width=(string)400,height=(string)300,colorimetry=(string)SMPTE240M,payload=(int)96,ssrc=(uint)1,clock-base=(uint)1,seqnum-base=(uint)1" gst-launch -v \ udpsrc name=src1 uri=udp://<a href="http://127.0.0.1:51234">127.0.0.1:51234</a> caps=$caps \ ! rtpvrawdepay name=depay1 \ ! ffmpegcolorspace name=cs1 \ ! ximagesink name=xis1 $ . rtp-client.sh Setting pipeline to PAUSED ... Pipeline is live and does not need PREROLL ... Setting pipeline to PLAYING ... New clock: GstSystemClock /GstPipeline:pipeline0/GstRtpVRawDepay:depay1.GstPad:src: caps = video/x-raw-yuv, width=(int)400, height=(int)300, format=(fourcc)UYVY, framerate=(fraction)0/1 /GstPipeline:pipeline0/GstRtpVRawDepay:depay1.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)RAW, sampling=(string)YCbCr-4:2:2, depth=(string)8, width=(string)400, height=(string)300, colorimetry=(string)SMPTE240M, payload=(int)96, ssrc=(uint)1, clock-base=(uint)1, seqnum-base=(uint)1 /GstPipeline:pipeline0/GstFFMpegCsp:cs1.GstPad:src: caps = video/x-raw-rgb, bpp=(int)32, depth=(int)24, endianness=(int)4321, red_mask=(int)65280, green_mask=(int)16711680, blue_mask=(int)-16777216, width=(int)400, height=(int)300, framerate=(fraction)0/1, pixel-aspect-ratio=(fraction)1/1 /GstPipeline:pipeline0/GstFFMpegCsp:cs1.GstPad:sink: caps = video/x-raw-yuv, width=(int)400, height=(int)300, format=(fourcc)UYVY, framerate=(fraction)0/1 /GstPipeline:pipeline0/GstXImageSink:xis1.GstPad:sink: caps = video/x-raw-rgb, bpp=(int)32, depth=(int)24, endianness=(int)4321, red_mask=(int)65280, green_mask=(int)16711680, blue_mask=(int)-16777216, width=(int)400, height=(int)300, framerate=(fraction)0/1, pixel-aspect-ratio=(fraction)1/1 *** glibc detected *** /usr/bin/gst-launch-0.10: free(): invalid next size (normal): 0x0000000000e02200 *** ======= Backtrace: ========= /lib/libc.so.6(+0x775b6)[0x7f1c7315f5b6] /lib/libc.so.6(cfree+0x73)[0x7f1c73165e53] /usr/lib/libgstreamer-0.10.so.0(+0x37ec9)[0x7f1c743faec9] /usr/lib/libgstreamer-0.10.so.0(gst_mini_object_unref+0x153)[0x7f1c7441ebf3] /usr/lib/libgstbase-0.10.so.0(+0x24f4c)[0x7f1c72998f4c] /usr/lib/libgstbase-0.10.so.0(+0x25c22)[0x7f1c72999c22] /usr/lib/libgstreamer-0.10.so.0(+0x605bd)[0x7f1c744235bd] /usr/lib/libgstreamer-0.10.so.0(+0x60eae)[0x7f1c74423eae] /usr/lib/gstreamer-0.10/libgstrtp.so(+0x31b0a)[0x7f1c6eb3fb0a] /usr/lib/libgstrtp-0.10.so.0(+0x100c7)[0x7f1c6e4bd0c7] /usr/lib/libgstreamer-0.10.so.0(+0x605bd)[0x7f1c744235bd] /usr/lib/libgstreamer-0.10.so.0(+0x60eae)[0x7f1c74423eae] /usr/lib/libgstbase-0.10.so.0(+0x1ee11)[0x7f1c72992e11] /usr/lib/libgstreamer-0.10.so.0(+0x8b9b3)[0x7f1c7444e9b3] /lib/libglib-2.0.so.0(+0x69a5f)[0x7f1c73afda5f] /lib/libglib-2.0.so.0(+0x67b84)[0x7f1c73afbb84] /lib/libpthread.so.0(+0x69ca)[0x7f1c734719ca] /lib/libc.so.6(clone+0x6d)[0x7f1c731ce6fd] ======= Memory map: ======== 00400000-00406000 r-xp 00000000 08:01 42624 /usr/bin/gst-launch-0.10 00606000-00607000 r--p 00006000 08:01 42624 /usr/bin/gst-launch-0.10 00607000-00608000 rw-p 00007000 08:01 42624 /usr/bin/gst-launch-0.10 00c5c000-00e5d000 rw-p 00000000 00:00 0 [heap] 7f1c677ff000-7f1c67800000 ---p 00000000 00:00 0 7f1c67800000-7f1c68000000 rw-p 00000000 00:00 0 7f1c68000000-7f1c68021000 rw-p 00000000 00:00 0 7f1c68021000-7f1c6c000000 ---p 00000000 00:00 0 7f1c6c100000-7f1c6c116000 r-xp 00000000 08:01 6843 /lib/libgcc_s.so.1 7f1c6c116000-7f1c6c315000 ---p 00016000 08:01 6843 /lib/libgcc_s.so.1 7f1c6c315000-7f1c6c316000 r--p 00015000 08:01 6843 /lib/libgcc_s.so.1 7f1c6c316000-7f1c6c317000 rw-p 00016000 08:01 6843 /lib/libgcc_s.so.1 7f1c6c317000-7f1c6c38d000 rw-s 00000000 00:04 460095511 /SYSV00000000 (deleted) 7f1c6c38d000-7f1c6c403000 rw-s 00000000 00:04 460062741 /SYSV00000000 (deleted) 7f1c6c403000-7f1c6c404000 ---p 00000000 00:00 0 7f1c6c404000-7f1c6cc04000 rw-p 00000000 00:00 0 7f1c6cc04000-7f1c6cc05000 ---p 00000000 00:00 0 7f1c6cc05000-7f1c6d405000 rw-p 00000000 00:00 0 7f1c6d405000-7f1c6d409000 r-xp 00000000 08:01 1951 /lib/libuuid.so.1.3.0 7f1c6d409000-7f1c6d608000 ---p 00004000 08:01 1951 /lib/libuuid.so.1.3.0 7f1c6d608000-7f1c6d609000 r--p 00003000 08:01 1951 /lib/libuuid.so.1.3.0 7f1c6d609000-7f1c6d60a000 rw-p 00004000 08:01 1951 /lib/libuuid.so.1.3.0 7f1c6d60a000-7f1c6d61b000 r-xp 00000000 08:01 2576 /usr/lib/libXext.so.6.4.0 7f1c6d61b000-7f1c6d81a000 ---p 00011000 08:01 2576 /usr/lib/libXext.so.6.4.0 7f1c6d81a000-7f1c6d81b000 r--p 00010000 08:01 2576 /usr/lib/libXext.so.6.4.0 7f1c6d81b000-7f1c6d81c000 rw-p 00011000 08:01 2576 /usr/lib/libXext.so.6.4.0 7f1c6d81c000-7f1c6d833000 r-xp 00000000 08:01 7426 /usr/lib/libICE.so.6.3.0 7f1c6d833000-7f1c6da32000 ---p 00017000 08:01 7426 /usr/lib/libICE.so.6.3.0 7f1c6da32000-7f1c6da33000 r--p 00016000 08:01 7426 /usr/lib/libICE.so.6.3.0 7f1c6da33000-7f1c6da34000 rw-p 00017000 08:01 7426 /usr/lib/libICE.so.6.3.0 7f1c6da34000-7f1c6da37000 rw-p 00000000 00:00 0 7f1c6da37000-7f1c6da3f000 r-xp 00000000 08:01 7429 /usr/lib/libSM.so.6.0.1 7f1c6da3f000-7f1c6dc3e000 ---p 00008000 08:01 7429 /usr/lib/libSM.so.6.0.1 7f1c6dc3e000-7f1c6dc3f000 r--p 00007000 08:01 7429 /usr/lib/libSM.so.6.0.1 7f1c6dc3f000-7f1c6dc40000 rw-p 00008000 08:01 7429 /usr/lib/libSM.so.6.0.1 7f1c6dc40000-7f1c6dc4c000 r-xp 00000000 08:01 8465 /usr/lib/gstreamer-0.10/libgstximagesink.so 7f1c6dc4c000-7f1c6de4b000 ---p 0000c000 08:01 8465 /usr/lib/gstreamer-0.10/libgstximagesink.so 7f1c6de4b000-7f1c6de4c000 r--p 0000b000 08:01 8465 /usr/lib/gstreamer-0.10/libgstximagesink.so 7f1c6de4c000-7f1c6de4d000 rw-p 0000c000 08:01 8465 /usr/lib/gstreamer-0.10/libgstximagesink.so 7f1c6de4d000-7f1c6de55000 r-xp 00000000 08:01 5876 /usr/lib/libgstvideo-0.10.so.0.21.0 7f1c6de55000-7f1c6e054000 ---p 00008000 08:01 5876 /usr/lib/libgstvideo-0.10.so.0.21.0 7f1c6e054000-7f1c6e055000 r--p 00007000 08:01 5876 /usr/lib/libgstvideo-0.10.so.0.21.0 7f1c6e055000-7f1c6e056000 rw-p 00008000 08:01 5876 /usr/lib/libgstvideo-0.10.so.0.21.0 7f1c6e056000-7f1c6e098000 r-xp 00000000 08:01 7001 /usr/lib/gstreamer-0.10/libgstffmpegcolorspace.so 7f1c6e098000-7f1c6e297000 ---p 00042000 08:01 7001 /usr/lib/gstreamer-0.10/libgstffmpegcolorspace.so 7f1c6e297000-7f1c6e298000 r--p 00041000 08:01 7001 /usr/lib/gstreamer-0.10/libgstffmpegcolorspace.so 7f1c6e298000-7f1c6e29a000 rw-p 00042000 08:01 7001 /usr/lib/gstreamer-0.10/libgstffmpegcolorspace.so 7f1c6e29a000-7f1c6e29b000 rw-p 00000000 00:00 0 7f1c6e29b000-7f1c6e2ab000 r-xp 00000000 08:01 6208 /usr/lib/libgstinterfaces-0.10.so.0.21.0 7f1c6e2ab000-7f1c6e4ab000 ---p 00010000 08:01 6208 /usr/lib/libgstinterfaces-0.10.so.0.21.0 7f1c6e4ab000-7f1c6e4ac000 r--p 00010000 08:01 6208 /usr/lib/libgstinterfaces-0.10.so.0.21.0 7f1c6e4ac000-7f1c6e4ad000 rw-p 00011000 08:01 6208 /usr/lib/libgstinterfaces-0.10.so.0.21.0 7f1c6e4ad000-7f1c6e4c2000 r-xp 00000000 08:01 6813 /usr/lib/libgstrtp-0.10.so.0.21.0 7f1c6e4c2000-7f1c6e6c1000 ---p 00015000 08:01 6813 /usr/lib/libgstrtp-0.10.so.0.21.0 7f1c6e6c1000-7f1c6e6c3000 r--p 00014000 08:01 6813 /usr/lib/libgstrtp-0.10.so.0.21.0 7f1c6e6c3000-7f1c6e6c4000 rw-p 00016000 08:01 6813 /usr/lib/libgstrtp-0.10.so.0.21.0 7f1c6e6c4000-7f1c6e6e9000 r-xp 00000000 08:01 42605 /usr/lib/libgsttag-0.10.so.0.21.0 7f1c6e6e9000-7f1c6e8e8000 ---p 00025000 08:01 42605 /usr/lib/libgsttag-0.10.so.0.21.0Aborted