Differences

This shows you the differences between two versions of the page.

--- ding:tvrecording [2005/10/05 07:55] – external edit 127.0.0.1
+++ ding:tvrecording [2008/06/04 19:10] – removed 138.220.76.37
@@ Line 1: / Line 1: @@
-====== 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.