TOOLS/qepdvcd.sh

   1 #!/bin/bash
   2 #
   3 # QEPDVCD
   4 #
   5 # Most of this stuff comes straight from MPlayer documentation.
   6 # Options are limited only to a small useful subset, if you
   7 # want more control, RTFM and DIY.
   8 #
   9 # Version:          0.1
  10 #
  11 # Licence:          GPL
  12 #
  13 # Author:           Reynaldo H. Verdejo Pinochet <reynaldo@opendot.cl>
  14 #
  15 # Script:           MPlayer Sources. Anything supported to vcd/svcd pal/ntsc
  16 #
  17 # requires:         mencoder
  18 #
  19 # sugests:          vcdimager / cdrecord
  20 #
  21 # Thanks to:        Carlos Navarro Salas - name author ;)
  22 #
  23 #
  24
  25 # Defaults
  26
  27 MYNAME=`basename $0`
  28 TARGET="svcd"
  29 ENCQ="2"
  30 ABPS="224"
  31 VBPS="2000"
  32 NORM="NTSC"
  33 SPLIT="0"
  34 TOLERANCE="85"
  35 OUTNAME="mencodedvcd"
  36 SUBFILENAME=0
  37
  38 EDLFILENAME="pass.edl"
  39 HAVESUB=0
  40 WORKDIR="."
  41 RATIOX=4
  42 RATIOY=3
  43
  44 OPTIONS="INPUTFILENAME TARGET ENCQ ABPS VBPS NORM SPLIT TOLERANCE OUTNAME"
  45
  46 function usage()
  47 {
  48 echo ""
  49 echo "usage $MYNAME inputfile [options]"
  50 echo ""
  51 echo "Options: [Default value]"
  52 echo ""
  53 echo "-t        Target svcd|vcd [svcd]"
  54 echo "-q        Encoding quality 0|1|2 [2]"
  55 echo "-a        Audio bitrate in kbps [224]"
  56 echo "-v        Video bitrate in kbps [2000 For SVCD, 1150 For VCD]"
  57 echo "-n        Norm NTSC|PAL [NTSC]"
  58 echo "-d        Divide/split movie at given times time1:time2:... [no split]"
  59 echo "-s        Shitty TV screen tolerance %, afects subtitle positioning [85]"
  60 echo "-u        Subtitle file name [No subtitle]"
  61 echo "-o        Output basename [mencodedvcd]"
  62 echo ""
  63 echo "In case you want to use -a/-v please read:"
  64 echo "http://www.mplayerhq.hu/DOCS/HTML/en/menc-feat-vcd-dvd.html"
  65 echo ""
  66 }
  67
  68 function test_needed()
  69 {
  70
  71 for i in mencoder; do
  72         if [ -z "`which $i`" ]; then
  73                 echo "[ERROR] mencoder not found in $PATH!"
  74                 exit 1
  75         fi
  76 done
  77
  78 }
  79
  80 function test_sugested()
  81 {
  82
  83 for i in vcdimager cdrecord; do
  84         if [ -z "`which $i`" ]; then
  85                 echo "[WARNING] $i not found in $PATH!"
  86                 echo "You'll likely need it after we finish."
  87                 exit 1
  88         fi
  89 done
  90 }
  91
  92 test_needed
  93 test_sugested
  94
  95 if [ $# -lt 1 ]; then
  96         echo ""
  97         echo "[ERROR] Input filename parameter is mandatory."
  98         echo ""
  99         usage
 100         exit 1
 101 fi
 102
 103 case $1 in
 104         -*)
 105                 usage
 106                 exit 1
 107                 ;;
 108         *)
 109                 INPUTFILENAME=$1
 110                 shift 1
 111                 ;;
 112 esac
 113
 114 while [ "$1"x != "x" ]; do
 115         case $1 in
 116                 -t)
 117                 TARGET=$2
 118                 shift 1
 119                 ;;
 120                 -q)
 121                 ENCQ=$2
 122                 shift 1
 123                 ;;
 124                 -a)
 125                 ABPS=$2
 126                 shift 1
 127                 ;;
 128                 -v)
 129                 VBPS=$2
 130                 shift 1
 131                 ;;
 132                 -n)
 133                 NORM=$2
 134                 shift 1
 135                 ;;
 136                 -d)
 137                 SPLIT=$2
 138                 shift 1
 139                 ;;
 140                 -s)
 141                 TOLERANCE=$2
 142                 shift 1
 143                 ;;
 144                 -u)
 145                 SUBFILENAME="$2"
 146                 HAVESUB=1
 147                 shift 1
 148                 ;;
 149                 -o)
 150                 OUTNAME=$2
 151                 shift 1
 152                 ;;
 153         esac
 154         shift 1
 155 done
 156
 157 echo ""
 158 echo "[STATUS] Will re-encode using the following parameters:"
 159 echo ""
 160 for i in $OPTIONS ; do
 161         echo "$i ${!i}";
 162 done
 163
 164 # Parameter Sanity Check ###########################################
 165 # We need to check supplied params against known format constraints
 166 ####################################################################
 167
 168 if [ $TARGET = "svcd" ]; then
 169         if [ $ABPS -gt 384 ]; then
 170                 echo "[ERROR] SVCD maximum abitrate is 384kbps."
 171                 exit 1
 172         fi
 173         if [ $VBPS -gt 2600 ]; then
 174                 echo "[ERROR] SVCD maximum vbitrate is 2600kbps."
 175                 exit 1
 176         fi
 177 else [ $TARGET = "vcd" ]
 178         if [ $ABPS -eq 224 ]; then
 179                 echo "[ERROR] VCD abitrate must be 224kbps."
 180                 exit 1
 181         fi
 182         if [ $VBPS -gt 1150 ]; then
 183                 echo "[ERROR] VCD maximum vbitrate is 1150kbps."
 184                 exit 1
 185         fi
 186 fi
 187
 188 # Set encoding options ##############################################
 189
 190 if [ $TARGET = "svcd" ]; then
 191         FORMAT="xsvcd"
 192         VCODEC="mpeg2video"
 193         VRCMINRATE=4
 194         VRCMAXRATE=2500
 195         VRCBUFSIZE=917
 196         if [ $NORM = "NTSC" ]; then
 197                 SCALEX=480
 198                 SCALEY=480
 199                 KEYINT=18
 200                 OFPS="24000/1001"
 201                 TELECINE=":telecine"
 202         else [ $NORM = "PAL" ]
 203                 SCALEX=480
 204                 SCALEY=576
 205                 KEYINT=15
 206                 OFPS=25
 207         fi
 208 else [ $TARGET = "vcd" ]
 209         FORMAT="xvcd"
 210         VCODEC="mpeg1video"
 211         VRCMINRATE=$VBPS
 212         VRCMAXRATE=$VBPS
 213         VRCBUFSIZE=327
 214         if [ $NORM = "NTSC" ]; then
 215                 SCALEX=352
 216                 SCALEY=240
 217                 KEYINT=18
 218                 OFPS="24000/1001"
 219         else [ $NORM = "PAL" ]
 220                 SCALEX=352
 221                 SCALEY=288
 222                 KEYINT=15
 223                 OFPS=25
 224         fi
 225 fi
 226
 227 # Start reencoding ###################################################
 228
 229 cd $WORKDIR
 230
 231 if [ $(($HAVESUB+1)) -eq 1 ]; then
 232         SUBTITLESTRING="/dev/null"
 233 else
 234         SUBTITLESTRING="$SUBFILENAME"
 235 fi
 236
 237 if [ $SPLIT == "0" ]; then
 238         CICLES=0
 239         TIMESTRING=""
 240 else
 241         if [ -e $EDLFILENAME ]; then
 242                 echo "[ERROR]"
 243                 echo "The -d option needs to generate a temporary file called"
 244                 echo "$EDLFILENAME. You already have one in this directory,"
 245                 echo "please remove/rename it and run $MYNAME again."
 246                 echo ""
 247                 exit 1
 248         else
 249                 EDLSTRING=$(echo $SPLIT | sed -e s/:/' '/g)
 250                 EDLARRAY=($EDLSTRING)
 251                 CICLES=$(echo $EDLSTRING | wc -w)
 252                 TIMESTRING="-edl $EDLFILENAME -hr-edl-seek"
 253         fi
 254 fi
 255
 256
 257 for j in $(seq 0 $CICLES); do
 258
 259         NEWNAME=$OUTNAME"_PART"$j".mpg"
 260         echo ""
 261         echo "Making $NEWNAME, wish me luck ;-)"
 262         echo ""
 263
 264 # Create EDLFILENAME #################################################
 265
 266         if [ $CICLES -ge 1 ]; then
 267                 for i in $(seq 0 $CICLES)
 268                 do
 269                         if [ $i -eq $j ]; then
 270                                 if [ $j -ne 0 ]; then
 271                                         echo "0 ${EDLARRAY[$(($i-1))]} 0" > $EDLFILENAME
 272                                 fi
 273                                 if [ $i -ne $CICLES ]; then
 274                                         echo "${EDLARRAY[$(($i))]} 999999 0" >> $EDLFILENAME
 275                                 fi
 276                         fi
 277                 done
 278         fi
 279
 280 # Mencoder Time ;-) ###################################################
 281
 282 mencoder \
 283 -ovc lavc -oac lavc -vf expand=:::::$RATIOX/$RATIOY:1,scale=$SCALEX:$SCALEY,harddup \
 284 -srate 44100 -af lavcresample=44100 -lavcopts acodec=mp2:abitrate=$ABPS:vcodec=$VCODEC:\
 285 vbitrate=$VBPS:keyint=$KEYINT:mbd=$ENCQ:vrc_buf_size=$VRCBUFSIZE:vrc_maxrate=$VRCMAXRATE:\
 286 vrc_minrate=$VRCMINRATE:vi_qfactor=0.1:vi_qoffset=1.5:aspect=$RATIOX/$RATIOY -of mpeg \
 287 -mpegopts format=$FORMAT$TELECINE -sub $SUBTITLESTRING -subpos $TOLERANCE -subwidth \
 288 $TOLERANCE -ofps $OFPS $TIMESTRING -o $NEWNAME $INPUTFILENAME
 289
 290 echo "Encoding of $NEWNAME finished."
 291 echo "Run vcdimager -t svcd/vcd $NEWNAME and burn with cdrecord."
 292
 293 done
 294
 295 echo "$(($CICLES+1)) VCD/SVCD file(s) created!!!"
 296 echo "Happy to be of some help ;-) have fun."
 297 exit 0