[gst-devel] gst-launch segfault

[Bebjak, Michal]

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