<div dir="ltr"><div>Well, videotestsrc generates raw video frames that aren't encoded. Your file (movie.mpeg4) should be encoded already, so you don't need the ffenc_mpeg4 filter. I think that your pipeline should be something like gst-launch -v filesrc location=movie.mp4 ! rtpmp4vpay ! udpsink host=192.168.1.16 port=5000 </div>I don't know mpeg very well so there might be some other conversion required, but that should be close. </div><div class="gmail_extra"> <div class="gmail_quote">On Tue, Jan 28, 2014 at 4:48 AM, d <<a href="mailto:dudi017@gmail.com" target="_blank">dudi017@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi! im trying to transmit video and play it on the client pc. the pipeline: gst-launch *videotestsrc* ! ffenc_mpeg4 ! rtpmp4vpay ! udpsink host=192.168.1.16 port=5000 works fine but now, I need to transfer a video file from the pc. this is the pipeline: gst-launch *filesrc location=movie.mp4* ! ffenc_mpeg4 ! rtpmp4vpay ! udpsink host=192.168.1.16 port=5000 and I get this error: Setting pipeline to PAUSED ... Pipeline is PREROLLING ... ** (gst-launch-0.10:10550): CRITICAL **: gst_ffmpegenc_chain_video: assertion `frame_size == GST_BUFFER_SIZE (inbuf)' failed ERROR: from element /GstPipeline:pipeline0/GstFileSrc:filesrc0: Internal data flow error. Additional debug info: gstbasesrc.c(2625): gst_base_src_loop (): /GstPipeline:pipeline0/GstFileSrc:filesrc0: streaming task paused, reason error (-5) ERROR: pipeline doesn't want to preroll. Setting pipeline to NULL ... Freeing pipeline ... *** stack smashing detected ***: ./RTPserver terminated Segmentation fault (core dumped) do someone know how to fix it? thank you! -- View this message in context: <a href="http://gstreamer-devel.966125.n4.nabble.com/transmit-video-stream-file-from-the-pc-tp4664924.html" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/transmit-video-stream-file-from-the-pc-tp4664924.html</a> Sent from the GStreamer-devel mailing list archive at Nabble.com. _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </blockquote></div> </div>