Hi Matthew, >gst-launch -v v4l2src ! TIVidenc1 codecName=h264enc >engineName=codecServer ! rtph264pay pt=96 ! udpsink host=<DEST> port=5000 I think there is missing colorconversion element (ffmpegcolorspace) before TIVidenc1. Also, it is necessary to specify colorspace (fourcc) explicitly. You can take a look at this thread which discuss similar issue: https://gstreamer.ti.com/gf/project/gstreamer_ti/forum/?_forum_action=ForumMessageBrowse&thread_id=3251&action=ForumBrowse&forum_id=187 In addition you can take a look at some example pipelines I am using in my project: http://www.gitorious.org/veter/veter/blobs/master/misc/car.config#line36 HTH, Andrey. ----- Original Message ---- From: Matthew Braun <mjbraun at leydenjar.com> To: gstreamer-embedded at lists.sourceforge.net Sent: Thu, December 9, 2010 5:29:15 PM Subject: Unable to stream MPEG4 or H.264 from BeagleBoard Greetings, and apologies in advance if my question is excessively simple, although my searches have so far proven futile. I'm running Angstrom on a BeagleBoard C (OMAP3530) with the gstreamer-ti package (GStreamer 0.10.30) installed. At boot the following commands are run: cd /usr/share/ti/gst/omap3530/ ./loadmodules.sh export GST_REGISTRY=/tmp/gst_registry.bin export LD_LIBRARY_PATH=/usr/lib export GST_PLUGIN_PATH=/usr/lib/gstreamer-0.10 export PATH=/usr/bin:$PATH cat /dev/zero > /dev/fb2 2> /dev/null Running the command gst-launch v4l2src ! video/x-raw-yuv,width=640,height=480 ! ffmpegcolorspace ! jpegenc ! multipartmux ! udpsink host=<DEST> port=5000 Succeeds (I can open VLC on <DEST> and view the stream, although it's pretty choppy). However, I'd like to do an MPEG4 stream instead. Following the example from http://processors.wiki.ti.com/index.php/Example_GStreamer_Pipelines#OMAP35x , I tried: gst-launch-0.10 v4l2src ! 'video/x-raw-yuv,width=640,height=480' ! ffenc_mpeg4 ! rtpmp4vpay ! udpsink host=169.254.12.28 port=5000 -v But I get Setting pipeline to PAUSED ... /GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)640, height=(int)480, framerate=(fraction)30/1 Pipeline is live and does not need PREROLL ... Setting pipeline to PLAYING ... New clock: GstSystemClock /GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)640, height=(int)480, framerate=(fraction)30/1 /GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)640, height=(int)480, framerate=(fraction)30/1 /GstPipeline:pipeline0/ffenc_mpeg4:ffenc_mpeg40.GstPad:src: caps = video/mpeg, width=(int)640, height=(int)480, framerate=(fraction)30/1, mpegversion=(int)4, systemstream=(boolean)false /GstPipeline:pipeline0/ffenc_mpeg4:ffenc_mpeg40.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)640, height=(int)480, framerate=(fraction)30/1 /GstPipeline:pipeline0/GstRtpMP4VPay:rtpmp4vpay0.GstPad:sink: caps = video/mpeg, width=(int)640, height=(int)480, framerate=(fraction)30/1, mpegversion=(int)4, systemstream=(boolean)false /GstPipeline:pipeline0/GstRtpMP4VPay:rtpmp4vpay0.GstPad:src: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, profile-level-id=(string)1, config=(string)000001b001000001b58913000001000000012000c48d8800f514043c1463 000001b24c61766335322e39372e32, payload=(int)96, ssrc=(uint)1464948709, clock-base=(uint)3097574894, seqnum-base=(uint)47019 /GstPipeline:pipeline0/GstUDPSink:udpsink0.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, profile-level-id=(string)1, config=(string)000001b001000001b58913000001000000012000c48d8800f514043c1463 000001b24c61766335322e39372e32, payload=(int)96, ssrc=(uint)1464948709, clock-base=(uint)3097574894, seqnum-base=(uint)47019 libv4l2: error converting / decoding frame data: v4l-convert: error parsing JPEG header: Not a JPG file ? Caught SIGSEGV accessing address 0x4 unable to fork gdb: Cannot allocate memory Spinning. Please run 'gdb gst-launch 1582' to continue debugging, Ctrl-C to quit, or Ctrl-\ to dump core. I assume this is related to the error parsing the JPEG header? The v4l2 source is a Logitech C310 USB webcam. Trying to encode as h.264 instead, from the same examples, I use: gst-launch -v v4l2src ! TIVidenc1 codecName=h264enc engineName=codecServer ! rtph264pay pt=96 ! udpsink host=<DEST> port=5000 -v But I get: Setting pipeline to PAUSED ... ERROR: Pipeline doesn't want to pause. ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Could not negotiate format Additional debug info: gstbasesrc.c(2755): gst_base_src_start (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Check your filtered caps, if any Setting pipeline to NULL ... Freeing pipeline ... Cat /proc/cmdline gives: console=ttyS2,115200n8 console=tty0 root=/dev/mmcblk0p2 rw rootwait rootdelay=2 mem=80M video=omapfb:vram:2M,vram:4M Any suggestions as to what I might be missing or something I should be trying instead to get MPEG4 or H.264 streaming to work? Thank you very much for any guidance or suggestions! -- Matthew Braun mjbraun at leydenjar.com ------------------------------------------------------------------------------ _______________________________________________ Gstreamer-embedded mailing list Gstreamer-embedded at lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gstreamer-embedded
