Specifications

Now try to record something:

$ streamer −p 4 −t 1:00 −r 24 −q −o test.avi −j 90 −f mjpeg −F mono16

...and you should be recording a sound−enabled avi file. Press [Ctrl]−C to cancel early. Next step is to

automate the recording for your very own home−brewed Tivo"!

I offer the following script as an example program for automating recording; you can copy and paste it into a

file and make it executable (chmod u+x record−tv.sh).

This script (and any recording from your Bttv device for that matter) generates extremely large files, on

the order of several GB per hour, so be sure you have lots of free disk space available.

#!/bin/bash

# ================= record−tv.sh ============================

# = GPL2 License, minor modifications by Howard Shane =

# = hshaneATaustin.rr.com , under same license =

# = usage record−tv.sh prefix−filename record−time channel =

# = Example: ./record−tv.sh enterprise 61:00 20 =

# ============================================================

# Version 0.9

# Last Mod: Wed Feb 20 11:27 CST 2005

# Output directory

OUTPUT=$HOME/vcr

# Streamer location

STREAMER=/usr/bin/streamer

# Alsa Mixer

AMIXER=/usr/bin/amixer

# v4lctl path

V4LCTL=/usr/bin/v4lctl

# Capture Volume to ensure sound is recorded (80%)

CAPTURE_VOLUME=100

# Tvtime settings file for color/brightness/contrast values

TVTIME=$HOME/.tvtime/tvtime.xml

# End of Config

###############

# check if I'm running TV, if so just exit

if [ `ps −C tvtime | grep −c tvtime` −gt 0 ]; then

echo "TVtime is running, aborting recording."

exit

# If the filename prefix wasn't given, set it to 'recording'

if [ −z $1 ]; then

PREFIX="recording"

else

PREFIX=$1

# if time is blank, record for 30 minutes

if [ −z $2 ]; then

TIME="30:00"

else

TIME=$2

The BTTV HOWTO

D. Recording Video and Sound with Bttv 40