can play stream but not transcode it

[stevej]

We've got a Tricaster Pro that does wmv streaming.

I can play the videos on my Linux box by using

vlc http://ip.of.tri.caster:80

It takes a while but eventually it does display live video.

However, I need to be able to grab the video, transcode it, and pass it off to a Darwin Streaming Server. I can play a local file or grab from a webcam and stream to the DSS box with the command

vlc MyVideoFile --sout #transcode{vcodec=mp4v,acodec=mpga,vb=800,ab=128}:rtp{dst=172.16.129.195,port=1234,sdp=file:///tmp/kim.sdp}

Then copy the sdp file that is generated to the DSS box.

However, when I try and grab from the tricaster and then transcode I get the following error:

timebase not supported by mpeg 4 standard
[0x92356a0] avcodec encoder error: cannot open encoder
[0x8f4d5f0] stream_out_transcode stream out error: cannot find video encoder (module:any fourcc:mp4v)


This same transcode statement works when playing files from my local machine (in a few different formats - wmv, mpg, avi) but fails when grabbing video from the Tricaster.

The DSS box can stream either a live quicktime format or a MP4 format.

Help?

[simon272]

Please post URL to Tricaster media and I'll try to look at. I have small VLC based streaming server which stream in flv format to embed player on the web page, I can view stream by VLC also, but VLC can't transcode it and save as file - loks like you have similar problem.

[stevej]

Unfortunately I'm behind a firewall/NAT so you wouldn't be able to reach it ...