<table cellpadding=3 cellspacing=0 border=0 width=100% bgcolor=white><tr valign=top><td width=100%>hi all, i want to create an application which can simultaneously capture live audio-video data(from microphone and webcam) , encode it and stream it using rtp , at the client side i want to receive av data and play it( what about av sync) using gstreamer-0.10.12, gst-plugins-base-0.10.12 ,gst-ffmpeg-0.10.2 i tried the following [root@pritesh mp4creator]# gst-launch -v v4lsrc ! videoscale ! "video/x-raw-yuv,frame-rate=(double)15.0" ! queue ! ffmpegcolorspace ! ffenc_mpeg4 ! ffmux_mp4 ! filesink location=webcam.mp4 Setting pipeline to PAUSED ... /pipeline0/v4lsrc0.src: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)160, height=(int)120, framerate=(fraction)25/1, frame-rate=(double)15 Pipeline is live and does not need PREROLL ... Setting pipeline to PLAYING ... New clock: GstSystemClock /pipeline0/videoscale0.src: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)160, height=(int)120, framerate=(fraction)25/1, frame-rate=(double)15 /pipeline0/videoscale0.sink: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)160, height=(int)120, framerate=(fraction)25/1, frame-rate=(double)15 /pipeline0/capsfilter0.src: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)160, height=(int)120, framerate=(fraction)25/1, frame-rate=(double)15 /pipeline0/capsfilter0.sink: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)160, height=(int)120, framerate=(fraction)25/1, frame-rate=(double)15 /pipeline0/queue0.sink: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)160, height=(int)120, framerate=(fraction)25/1, frame-rate=(double)15 /pipeline0/queue0.src: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)160, height=(int)120, framerate=(fraction)25/1, frame-rate=(double)15 /pipeline0/ffmpegcsp0.src: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)160, height=(int)120, framerate=(fraction)25/1, frame-rate=(double)15 /pipeline0/ffmpegcsp0.sink: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)160, height=(int)120, framerate=(fraction)25/1, frame-rate=(double)15 /pipeline0/ffenc_mpeg40.src: caps = video/mpeg, width=(int)160, height=(int)120, framerate=(fraction)25/1, mpegversion=(int)4, systemstream=(boolean)false /pipeline0/ffenc_mpeg40.sink: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)160, height=(int)120, framerate=(fraction)25/1, frame-rate=(double)15 /pipeline0/ffmux_mp40.video_0: caps = video/mpeg, width=(int)160, height=(int)120, framerate=(fraction)25/1, mpegversion=(int)4, systemstream=(boolean)false after some time stopped the procedure Caught interrupt -- handling interrupt. Interrupt: Setting pipeline to PAUSED ... Execution ended after 93657591000 ns. Setting pipeline to PAUSED ... Setting pipeline to READY ... /pipeline0/ffmux_mp40.video_0: caps = NULL /pipeline0/ffenc_mpeg40.src: caps = NULL /pipeline0/ffenc_mpeg40.sink: caps = NULL /pipeline0/ffmpegcsp0.src: caps = NULL /pipeline0/ffmpegcsp0.sink: caps = NULL /pipeline0/queue0.src: caps = NULL /pipeline0/queue0.sink: caps = NULL /pipeline0/capsfilter0.src: caps = NULL /pipeline0/capsfilter0.sink: caps = NULL /pipeline0/videoscale0.src: caps = NULL /pipeline0/videoscale0.sink: caps = NULL /pipeline0/v4lsrc0.src: caps = NULL Setting pipeline to NULL ... FREEING pipeline . in the created mp4 file only mdat exists and i cannot play it with any player any ideas </td></tr></table><hr>Join Excite! - <a href=http://www.excite.com target=_blank>http://www.excite.com</a> The most personalized portal on the Web!