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--- ding:tvrecording [2008/06/04 19:10] – removed 138.220.76.37
+++ ding:tvrecording [2008/06/04 19:39] (current) – old revision restored ach
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+====== TV recording using mencoder ======
+Sometimes there is a show on TV I want to record for watching it later. I have a TV card in the [[ding:intro|ding]] to do this. It's an old MiroPCTV card sold by Pinnacle. Here is what ''/proc/pci'' has to say:
+  Bus  0, device   8, function  0:
+    Multimedia video controller: Brooktree Corporation Bt848 Video Capture (rev 18).
+      IRQ 5.
+      Master Capable.  Latency=32.  Min Gnt=16.Max Lat=40.
+      Prefetchable 32 bit memory at 0xef000000 [0xef000fff].
+===== Kernel Support =====
+Here are the modules I did select in the kernel configuration to get the TV card running.
+  Character devices  --->
+    I2C support  --->
+      <M> I2C support
+      <M> I2C bit-banging interfaces
+  Multimedia devices  --->
+    <M> Video For Linux
+    Video For Linux  --->
+      [*]   V4L information in proc filesystem
+      <M>   BT848 Video For Linux
+  Sound  --->
+    <M> Sound card support
+    <M>   BT878 audio dma
+    <M>   TV card (bt848) mixer support
+===== Recording Script =====
+I use [[http://www.mplayerhq.hu|MPlayers]] ''mencoder'' to record directly to DIVX with the following script:
+<file>
+#!/bin/sh
+#Duration in seconds
+TIME=$1
+#Channel like S35 or E12
+CH=$2
+#name of program (filename)
+NAME=$3
+#Where to put the stuff
+OUTDIR="/ftp/disk1/upload"
+OUT="$OUTDIR/$NAME.avi"
+#Bitrate for video encoding
+VBR=500
+#Audiobitrate
+ABR=96
+#mencoder
+ME='/usr/bin/mencoder'
+CMD="$ME tv://
+  -tv driver=v4l:width=384:height=288:norm=pal:amode=0:adevice=/dev/dsp:channel=$CH:buffersize=64
+  -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=$VBR:vhq
+  -oac mp3lame -lameopts cbr:br=$ABR
+  -endpos $TIME -sws 1 -o $OUT"
+echo "recsrc PhoneIn" | /usr/local/bin/smixer -s -
+echo "vol PhoneIn 60" | /usr/local/bin/smixer -s -
+$CMD
+echo "vol PhoneIn 0" | /usr/local/bin/smixer -s -
+</file>
+The script uses [[ding:smixer]] to set the soundcard's recording source and volume. It accepts three paramters: the duration of the show to record in seconds, the channel name, and the name of the file to save (without path and extension).
+For more info on the mencoder options used see http://mplayerhq.hu/DOCS/HTML/en/tv-input.html
+===== Programmed Recording =====
+To program this VCR I use ''at'' (''#> apt-get install at'') and the following little bash script which uses ''dialog'' (''#> apt-get install dialog'') to ask all needed information interactively:
+<file>
+#!/bin/bash
+RECORDER="/home/mm/recordtv.sh";
+OPTS='--stdout --no-shadow --clear --backtitle "TV-Recorder"'
+NAME=`dialog $OPTS --title "Title" --inputbox "Please name the program to record (avoid special chars)" 0 0 "tvprogram"`
+if test $? -ne 0 ; then exit; fi
+PROG=`dialog $OPTS --title "Station" --menu "Choose a station" 0 0 5 \
+                                            "E10"  "ARD" \
+                                            "E8"   "ZDF" \
+                                            "SE4"  "Arte" \
+                                            "SE19" "Phoenix" \
+                                            "E7"   "ORB" \
+                                            "E6"   "SFB1" \
+                                            "SE15" "BR" \
+                                            "S22"  "WDR" \
+                                            "SE17" "NDR" \
+                                            "SE18" "MDR" \
+                                            "SE9"  "3SAT" \
+                                            "S35"  "XXP" \
+                                            "SE20" "Pro7" \
+                                            "E9"   "Sat1" \
+                                            "E11"  "RTL" \
+                                            "SE13" "RTL2" \
+                                            "SE21" "Super RTL" \
+                                            "SE6"  "Kabel1" \
+                                            "SE11" "VOX"`
+if test $? -ne 0 ; then exit; fi
+DATE=`dialog $OPTS --title "Startdate" --calendar "Select the day when the recording starts" 0 0`
+if test $? -ne 0 ; then exit; fi
+DATE=`echo $DATE | sed -e 's/\//./g'`
+START=`dialog $OPTS --title "Starttime" --timebox "Please set the starttime of the program" 0 0`
+if test $? -ne 0 ; then exit; fi
+START="`echo $START | cut -d : -f 1`:`echo $START | cut -d : -f 2`";
+TIME=`dialog $OPTS --title "Duration" --timebox "Please set the duration of the program" 0 0 0 0 0`
+if test $? -ne 0 ; then exit; fi
+#Calculate seconds from TIME:
+THRS=`echo $TIME | cut -d : -f 1`
+THRS=`expr $THRS \* 3600`
+TMIN=`echo $TIME | cut -d : -f 2`
+TMIN=`expr $TMIN \* 60`
+TSEC=`echo $TIME | cut -d : -f 3`
+TIME=`expr $THRS + $TMIN`
+TIME=`expr $TIME + $TSEC`
+dialog $OPTS --title "Confirmation" --yesno \
+"I will record the TV-Show '$NAME' on channel $PROG. \
+ It starts at $DATE $START and runs $TIME seconds. Is that okay?" 0 0
+if test $? -ne 0 ; then exit; fi
+echo "$RECORDER $TIME $PROG \"$NAME\"" | at $START $DATE
+</file>
+Note: ''at'' has a [[http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=13605|known bug]] which prevents it from working when ''/var'' is a mounted NFS partition. However for me it works as ''root'' not as normal user regardless of the set SUID bit.