[gst-devel] gst-launch segfault

Wed Oct 4 16:43:02 CEST 2006

hi

I tried your pipelines: the server works fine (I think), but the client
takes 100% of my CPU and occasionally (unpredictably) shows a grey
window.

something's wrong with me?

alb

On Wed, 2006-10-04 at 14:25 +0200, Bebjak, Michal wrote:
> Hello,
> 
> I'm getting a segfault when I'm trying to change the video resolution. I have a client and a server like this:
> 
> server:
> gst-launch-0.10 -v v4lsrc device=/dev/video0 ! 'video/x-raw-yuv,width=176,height=144' ! videorate ! ffenc_mpeg4 bitrate=300000 ! rtpmp4vpay send-config=true ! queue ! udpsink port=7777 sync=false qos=true
> 
> client:
> gst-launch-0.10 -v udpsrc port=7777 ! 'application/x-rtp,media=video,payload=96,clock-rate=2147483647,encoding-name=MP4V-ES' ! rtpmp4vdepay ! 'video/mpeg,mpegversion=4,width=640,height=480,framerate=25/1' ! ffdec_mpeg4 ! ffmpegcolorspace ! ximagesink sync=false qos=true
> 
> So first of all i start the client and the server:
> 
> 
> 
> [n-brio at pcb1071 QoS_handling]$ gst-launch-0.10 -v v4lsrc device=/dev/video0 ! 'video/x-raw-yuv,width=176,height=144' ! videorate ! ffenc_mpeg4 bitrate=300000 ! rtpmp4vpay send-config=true ! queue ! udpsink port=7777 sync=false qos=true
> Setting pipeline to PAUSED ...
> /pipeline0/v4lsrc0.src: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)176, height=(int)144, framerate=(fraction)25/1
> Pipeline is live and does not need PREROLL ...
> Setting pipeline to PLAYING ...
> New clock: GstSystemClock
> /pipeline0/capsfilter0.src: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)176, height=(int)144, framerate=(fraction)25/1
> /pipeline0/capsfilter0.sink: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)176, height=(int)144, framerate=(fraction)25/1
> /pipeline0/videorate0.sink: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)176, height=(int)144, framerate=(fraction)25/1
> /pipeline0/videorate0.src: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)176, height=(int)144, framerate=(fraction)25/1
> /pipeline0/videorate0.sink: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)176, height=(int)144, framerate=(fraction)25/1
> /pipeline0/ffenc_mpeg40.src: caps = video/mpeg, width=(int)176, height=(int)144, framerate=(fraction)25/1, mpegversion=(int)4, systemstream=(boolean)false
> /pipeline0/ffenc_mpeg40.sink: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)176, height=(int)144, framerate=(fraction)25/1
> /pipeline0/rtpmp4vpay0.sink: caps = video/mpeg, width=(int)176, height=(int)144, framerate=(fraction)25/1, mpegversion=(int)4, systemstream=(boolean)false
> /pipeline0/rtpmp4vpay0.src: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, ssrc=(guint)1383135123, clock-base=(guint)1850521465, seqnum-base=(guint)4782, profile-level-id=(string)1, config=(string)000001b001000001b58913000001000000012000c48d8800ce182c2090a21f000001b24c61766335312e372e30
> /pipeline0/queue0.sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, ssrc=(guint)1383135123, clock-base=(guint)1850521465, seqnum-base=(guint)4782, profile-level-id=(string)1, config=(string)000001b001000001b58913000001000000012000c48d8800ce182c2090a21f000001b24c61766335312e372e30
> /pipeline0/queue0.src: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, ssrc=(guint)1383135123, clock-base=(guint)1850521465, seqnum-base=(guint)4782, profile-level-id=(string)1, config=(string)000001b001000001b58913000001000000012000c48d8800ce182c2090a21f000001b24c61766335312e372e30
> /pipeline0/udpsink0.sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, ssrc=(guint)1383135123, clock-base=(guint)1850521465, seqnum-base=(guint)4782, profile-level-id=(string)1, config=(string)000001b001000001b58913000001000000012000c48d8800ce182c2090a21f000001b24c61766335312e372e30
> 
> 
> 
> 
> 
> 
> 
> [n-brio at pcb1071 ~]$ gst-launch-0.10 -v udpsrc port=7777 ! 'application/x-rtp,media=video,payload=96,clock-rate=2147483647,encoding-name=MP4V-ES' ! rtpmp4vdepay ! 'video/mpeg,mpegversion=4,width=640,height=480,framerate=25/1' ! ffdec_mpeg4 ! ffmpegcolorspace ! ximagesink sync=false qos=true
> Setting pipeline to PAUSED ...
> Pipeline is live and does not need PREROLL ...
> Setting pipeline to PLAYING ...
> New clock: GstSystemClock
> /pipeline0/capsfilter0.sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)2147483647, encoding-name=(string)MP4V-ES
> /pipeline0/capsfilter0.src: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)2147483647, encoding-name=(string)MP4V-ES
> /pipeline0/rtpmp4vdepay0.sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)2147483647, encoding-name=(string)MP4V-ES
> /pipeline0/capsfilter1.sink: caps = video/mpeg, mpegversion=(int)4, systemstream=(boolean)false, width=(int)640, height=(int)480, framerate=(fraction)25/1
> /pipeline0/capsfilter1.src: caps = video/mpeg, mpegversion=(int)4, systemstream=(boolean)false, width=(int)640, height=(int)480, framerate=(fraction)25/1
> /pipeline0/ffdec_mpeg40.sink: caps = video/mpeg, mpegversion=(int)4, systemstream=(boolean)false, width=(int)640, height=(int)480, framerate=(fraction)25/1
> /pipeline0/ffdec_mpeg40.src: caps = video/x-raw-yuv, width=(int)176, height=(int)144, framerate=(fraction)25/1, format=(fourcc)I420, pixel-aspect-ratio=(fraction)1/1
> /pipeline0/ffmpegcsp0.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)176, height=(int)144, framerate=(fraction)25/1, pixel-aspect-ratio=(fraction)1/1
> /pipeline0/ffmpegcsp0.sink: caps = video/x-raw-yuv, width=(int)176, height=(int)144, framerate=(fraction)25/1, format=(fourcc)I420, pixel-aspect-ratio=(fraction)1/1
> /pipeline0/ximagesink0.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)176, height=(int)144, framerate=(fraction)25/1, pixel-aspect-ratio=(fraction)1/1
> 
> 
> 
> 
> everything is fine...then I stop the server (the client is still running) and start it with a higher resolution:
> 
> 
> [n-brio at pcb1071 QoS_handling]$ gst-launch-0.10 -v v4lsrc device=/dev/video0 ! 'video/x-raw-yuv,width=640,height=480' ! videorate ! ffenc_mpeg4 bitrate=300000 ! rtpmp4vpay send-config=true ! queue ! udpsink port=7777 sync=false qos=true
> Setting pipeline to PAUSED ...
> /pipeline0/v4lsrc0.src: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)640, height=(int)480, framerate=(fraction)25/1
> Pipeline is live and does not need PREROLL ...
> Setting pipeline to PLAYING ...
> New clock: GstSystemClock
> /pipeline0/capsfilter0.src: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)640, height=(int)480, framerate=(fraction)25/1
> /pipeline0/capsfilter0.sink: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)640, height=(int)480, framerate=(fraction)25/1
> /pipeline0/videorate0.sink: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)640, height=(int)480, framerate=(fraction)25/1
> /pipeline0/videorate0.src: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)640, height=(int)480, framerate=(fraction)25/1
> /pipeline0/videorate0.sink: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)640, height=(int)480, framerate=(fraction)25/1
> /pipeline0/ffenc_mpeg40.src: caps = video/mpeg, width=(int)640, height=(int)480, framerate=(fraction)25/1, mpegversion=(int)4, systemstream=(boolean)false
> /pipeline0/ffenc_mpeg40.sink: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)640, height=(int)480, framerate=(fraction)25/1
> /pipeline0/rtpmp4vpay0.sink: caps = video/mpeg, width=(int)640, height=(int)480, framerate=(fraction)25/1, mpegversion=(int)4, systemstream=(boolean)false
> /pipeline0/rtpmp4vpay0.src: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, ssrc=(guint)3163254718, clock-base=(guint)3186915499, seqnum-base=(guint)31161, profile-level-id=(string)1, config=(string)000001b001000001b58913000001000000012000c48d8800ce18a021e0a21f000001b24c61766335312e372e30
> /pipeline0/queue0.sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, ssrc=(guint)3163254718, clock-base=(guint)3186915499, seqnum-base=(guint)31161, profile-level-id=(string)1, config=(string)000001b001000001b58913000001000000012000c48d8800ce18a021e0a21f000001b24c61766335312e372e30
> /pipeline0/queue0.src: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, ssrc=(guint)3163254718, clock-base=(guint)3186915499, seqnum-base=(guint)31161, profile-level-id=(string)1, config=(string)000001b001000001b58913000001000000012000c48d8800ce18a021e0a21f000001b24c61766335312e372e30
> /pipeline0/udpsink0.sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, ssrc=(guint)3163254718, clock-base=(guint)3186915499, seqnum-base=(guint)31161, profile-level-id=(string)1, config=(string)000001b001000001b58913000001000000012000c48d8800ce18a021e0a21f000001b24c61766335312e372e30
> 
> 
> 
> 
> the server is working, but the client crashes with a segmentation fault. Interesting thing is that when I start with high resolution at the beginning and I lower the resolution, than the client doesn't crash. I guess it has to do with the allocation af the sources. Is it somehow possible to change the resolution to higher one, without stopping the client??
> 
> Michal
> 
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