Capturing streaming audio and video

Capturing streaming audio and video
26 October 2005

Status

Capture streams often works

Capture streams

Software and guides

Linux Radio Timeshift HOWTO
HOWTO Rip Streams With MPlayer
Capturing NPR streams
openRTSP
List of clients and servers
streamripper and kstreamripper -- for mp3 files

Mimms

mimms mms://wms.itea.ntnu.no/info/NTNU_exorcisten.wmv

Very elegant. Captures the file in a console. For rtsp, it looks like you need mplayer.

Mplayer

For stations that stream mp3, you can use the URL as a playlist:

mplayer -cache 512 -playlist http://66.225.205.75:80/listen.pls

On 10 December 2005, I downloaded and customized for spello and clitunno a paired set of scripts for capturing NPR streams:

spello# npr-grabber.sh -m -o WESAT

to download the latest Weekend Edition on Saturday and convert to mp3 and ogg. The scripts don't work on clitunno -- there's a problem with the download, and I haven't taken the time to debug.

For sound files in .ra, .ram, and .wmw, capture to wav (this is what npr-grabber does):

mplayer -nocache -vc null -vo null -ao pcm:waveheader
-ao pcm:file=<filename.wav> <url.rm>

For rtsp video, use dumpstream (for mms streams, use mimms as above):

mplayer <url> -dumpstream -dumpfile <name> (default name is something like dump.stream)

For instance:

mplayer rtsp://real.npr.na-central.speedera.net:80/real.npr.na-central/atc/20041124_atc_12.rm
-dumpstream -dumpfile bittorrent.wav

Trevi works if you use mplayer32, or you may need to do it in chroot.

For details, see http://gentoo-wiki.com/HOWTO_Rip_Streams_With_MPlayer

Timeshifting NPR's news programs: http://phiwumbda.org/~jesse/shell/NPR.html

The site has instructions for how to use the npr-grabber.sh script, which I've
modified to work with a recent mplayer (and with /ssa/) and placed on spello.

Maintained by Francis F. Steen, Communication Studies, University of California Los Angeles