D. Recording Video and Sound with Bttv

   $ cat /proc/asound/pcm
   00-00: Intel ICH : NVidia CK8S : playback 1 : capture 1
   00-01: Intel ICH - MIC ADC : NVidia CK8S - MIC ADC : capture 1
   00-02: Intel ICH - IEC958 : NVidia CK8S - IEC958 : playback 1
   01-00: Bt87x Digital : Bt87x Digital : capture 1
   01-01: Bt87x Analog : Bt87x Analog : capture 1

   $ amixer -c 1 controls
   numid=3,iface=MIXER,name='Capture Source'
   numid=2,iface=MIXER,name='Capture Boost'
   numid=1,iface=MIXER,name='Capture Volume'

   $ amixer -c 1 cget name='Capture Source'
   numid=3,iface=MIXER,name='Capture Source'
   ; type=ENUMERATED,access=rw---,values=1,items=3
   ; Item #0 'TV Tuner'
   ; Item #1 'FM'
   ; Item #2 'Mic/Line'
   : values=1

   $ amixer -c 1 cget name='Capture Boost'
   numid=2,iface=MIXER,name='Capture Boost'
   ; type=BOOLEAN,access=rw---,values=1
   values=on

   $ amixer -c 1 cget name='Capture Volume'
   numid=1,iface=MIXER,name='Capture Volume'
   ; type=INTEGER,access=rw---,values=1,min=0,max=15,step=0
   : values=0

   $ amixer -c 1 cset name='Capture Source' 0

   $ amixer -c 1 cset name="Capture Volume' 15

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

 #!/bin/bash 
 # ================= record-tv.sh  ============================
 # = copyright 2003 by Greg Watson  gwatsonATlinuxlogin.com   =
 # = 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
 fi
 
 # If the filename prefix wasn't given, set it to 'recording'
 if [ -z $1 ]; then
         PREFIX="recording"
 else
         PREFIX=$1
 fi
 
 # if time is blank, record for 30 minutes
 if [ -z $2 ]; then
         TIME="30:00"
 else
         TIME=$2
 fi
 
 if [ ! -z $3 ]; then
         $V4LCTL setchannel $3
 fi
 
 # Check for vcr dir
 if [ ! -x $OUTPUT ]; then
         mkdir $OUTPUT
 fi
         
 DATE=`date +%m-%d-%Y-%H:%M`
 
 # Set the AC97 volume to 0 (so we don't hear the sounds)
 # Get mixer values first
 PLAY_VOL=`$AMIXER -c 0 cget name='Master Playback Volume' | grep : | sed 's/^.*=\([^,]*\).*$/\1/'`
 CAP_VOL=`$AMIXER -c 0 cget name='PCM Playback Volume' | grep : | sed 's/^.*=\([^,]*\).*$/\1/'`
 #  
 $AMIXER -c 0 -q cset name='CD Playback Volume' 100
 $AMIXER -c 0 -q cset name='Capture Volume' 1
 
 # if tvtime.xml is set, then grab settings out of it
 if [ -f $TVTIME ]; then
         CONTRAST=`cat ${TVTIME} | grep DefaultContrast | sed 's/^.*value="\([^"]*\).*$/\1/'`
         BRIGHTNESS=`cat ${TVTIME} | grep DefaultBrightness | sed 's/^.*value="\([^"]*\).*$/\1/'`
         COLOR=`cat ${TVTIME} | grep DefaultColour | sed 's/^.*value="\([^"]*\).*$/\1/'`
         HUE=`cat ${TVTIME} | grep DefaultHue | sed 's/^.*value="\([^"]*\).*$/\1/'`
 
         $V4LCTL bright ${BRIGHTNESS}% color ${COLOR}% contrast ${CONTRAST}% hue ${HUE}%
 fi
 
 $STREAMER -p 4 -q -t ${TIME} -r 24 -q -o ${OUTPUT}/${PREFIX}-${DATE}-${TIME}.avi -j 90 -f mjpeg -F mono16
 
 # Sometimes streamer doesn't always re-mute audio, mute it again just to be sure
 $V4LCTL volume mute on
 
 # Restore volumes
 $AMIXER -q cset name='Master Playback Volume' $PLAY_VOL
 $AMIXER -q cset name='PCM Playback Volume' $CAP_VOL
 #
 # EOF