<html>
<head>
<style>
.hmmessage P
{
margin:0px;
padding:0px
}
body.hmmessage
{
font-size: 10pt;
font-family:Verdana
}
</style>
</head>
<body class='hmmessage'>
Hi all, I have been trying to write a program to record video and audio over a network. Independently (I mean creating the video and audio files alone) they are working very nicely, but when I mix them and tried to to save them in one file, I got a very unsynchronized file. The audio finishes almost 3 second ahead of the video (un synchronized by 3 seconds). I even used the sync=true option for the filesink element, but the result is the same. Please give me your ideas on what I should do to get a synchronized video file. Do you think the result will be different if I use a different file container (like mp4) instead of avi? The following is the source and destination commands:<br><br>Source commands:<br><u>for the audio channel</u><br>gst-launch-0.10 -v alsasrc ! queue ! audio/x-raw-int,rate=8000,channels=1,depth=8 ! audioconvert ! alawenc ! rtppcmapay ! queue ! udpsink port=5002<br><u>for the video channel;</u><br>gst-launch v4l2src ! video/x-raw-rgb,width=320,height=240 ! queue ! videorate ! video/x-raw-rgb,rate=15/1 ! ffmpegcolorspace! ffenc_h263p ! rtph263ppay ! udpsink port=5000<br><br>Output command<br>gst-launch-0.10 -v avimux name=mux ! filesink location=videoandaudio.avi sync=true {udpsrc port=5000 caps="application/x-rtp,media=(string)video,clock-rate=(int)90000,encoding-name=(string)H263-1998" num-buffers=5000 ! queue ! rtph263pdepay ! 'video/x-h263,width=320,height=240,framerate=(fraction)25/1' ! queue} ! mux.video_0 {udpsrc port=5002 caps="application/x-rtp,media=(string)audio,payload=(int)96, rate=(int)8000, encoding-name=(string)PCMA" ! queue ! rtppcmadepay ! 'audio/x-alaw, rate=(int)8000, channels=(int)1' ! queue} ! mux.audio_0;<br><br>Thank you.<br><br>- Zelalem S. <br><br><br><br><a href="http://www.microsoft.com/windows/windowslive/default.aspx"><br></a><br /><hr />Invite your mail contacts to join your friends list with Windows Live Spaces. It's easy! <a href='http://spaces.live.com/spacesapi.aspx?wx_action=create&wx_url=/friends.aspx&mkt=en-us' target='_new'>Try it!</a></body>
</html>