TOOLS/divx2svcd

   1 #!/bin/bash
   2
   3 # (c) 2003 Vajna Miklos <mainroot@freemail.hu>
   4 # divx2svcd for MPlayer
   5 # distributed under GPL License
   6
   7 # simple utility that creates a SVCD from a video in an AVI container
   8
   9 # The newest version of this utility can be found at
  10 # http://vmiklos.uw.hu/divx2svcd/divx2svcd
  11 # MPlayer available at
  12 # http://www.mplayerhq.hu/MPlayer/releases/MPlayer-1.0pre3try2.tar.bz2
  13
  14 ###changelog###
  15 #nobody cares about it :-)
  16 cat >/dev/null <<EOF
  17 0.5.1
  18 - faster code by not re-mplexing one-cd-size or smaller videos
  19
  20 0.5.0
  21 - needless for dumpvideo patch ;-)
  22
  23 0.4.9
  24 - changed default bitrate to 1600 for better quality
  25 - fix for burning more than one cd
  26 - fix for wrong parameter help
  27
  28 0.4.8
  29 - small fixes
  30
  31 0.4.7
  32 - fixed bug, when there is no sub available
  33
  34 0.4.6
  35 - support for burning the svcd with cdrecord
  36 - lots of paranoid options for better quality from Denes Balatoni
  37
  38 0.4.5
  39 - support for filenames including spaces
  40
  41 0.4.4
  42 - support for checking all applications this script uses
  43 - this changelog
  44
  45 0.4.3
  46 - advanced detectation of movie aspect (mpeg4 codec, mpeg container)
  47
  48 0.4.2
  49 - advanced vf options for movies with non-standard aspect
  50
  51 0.4.1
  52 - checking for available sub
  53
  54 0.4.0
  55 - support for tcmplex-panteltje
  56 - support for libavcodec audio encoder
  57
  58 0.3.1-0.3.2
  59 - small fixes
  60
  61 0.3
  62 - almost totally rewritten from scratch
  63   based on the idea of Denes Balatoni <pnis@coder.hu>
  64 - support for toolame instead of mp2enc
  65 - suppert for libavcodec mpeg2video codec instead of mpeg2enc
  66
  67 0.2
  68 - support for tcmplex instead of mplex
  69
  70 0.1rc2-rc4
  71 - small bugfixes
  72
  73 0.1rc1
  74 - initial release
  75
  76 EOF
  77
  78
  79 ###preparing###
  80 #help
  81
  82 function usage()
  83 {
  84         cat <<EOF
  85 Usage: `basename $0` input_avi [options]
  86
  87 Options:
  88 -b|--bitrate xx bitrate of mp2 video stream [1375]
  89 -s|--cdsize xx  size of the cd we split the video to [795]
  90 -w|--writecd    enables burning [disable]
  91 -d|--device xx  scsi cd-recording device if you are using linux 2.4.x [0,0,0]
  92 -c|--clean      clean up svcd images you just created
  93 -h|--help       this help screen
  94 EOF
  95
  96 }
  97
  98 #initializating constants
  99 version='0.5.1'
 100 bitrate=1375
 101 cdsize=795
 102 burning=0
 103 cleaning=0
 104 dev4='0,0,0'
 105 firstcd=1
 106
 107 #paranoid options
 108 paraopts='vrc_override=1,10,708:vqcomp=0.1:vratetol=10000000:vrc_buf_size=917:vrc_maxrate=2500:intra_matrix=8,9,12,22,26,27,29,34,9,10,14,26,27,29,34,37,12,14,18,27,29,34,37,38,22,26,27,31,36,37,38,40,26,27,29,36,39,38,40,48,27,29,34,37,38,40,48,58,29,34,37,38,40,48,58,69,34,37,38,40,48,58,69,79:inter_matrix=16,18,20,22,24,26,28,30,18,20,22,24,26,28,30,32,20,22,24,26,28,30,32,34,22,24,26,30,32,32,34,36,24,26,28,32,34,34,36,38,26,28,30,32,34,36,38,40,28,30,32,34,36,38,42,42,30,32,34,36,38,40,42,44'
 109
 110 #header
 111 echo "DivX2SvcD $version (C) 2003-2004 Vajna Miklos"
 112 echo
 113
 114 #checking for ls
 115 ls=`which ls`
 116
 117 #checking for bc
 118 which bc >/dev/null 2>&1
 119 bcbin=`which bc 2>/dev/null`
 120 if [ $? != 0 ]; then
 121         cat <<EOF
 122 ERROR: Can't find bc. You can download it at
 123 ftp://ftp.ibiblio.org/pub/gnu/bc/bc-1.06.tar.gz
 124 EOF
 125 exit 1
 126 fi
 127
 128 #checking for vcdimager
 129 which vcdimager >/dev/null 2>&1
 130 bcbin=`which vcdimager 2>/dev/null`
 131 if [ $? != 0 ]; then
 132         cat <<EOF
 133 ERROR: Can't find vcdimager. You can download it at http://www.vcdimager.org
 134 /pub/vcdimager/vcdimager-0.7_UNSTABLE/vcdimager-0.7.14.tar.gz
 135 EOF
 136 exit 1
 137 fi
 138
 139 #checking which mplex utility we have to use
 140 which tcmplex-panteltje >/dev/null 2>&1
 141 if [ $? = 0 ]; then
 142         tcp_path=`which tcmplex-panteltje 2>&1`
 143 else
 144         tcp_path="x"
 145 fi
 146 which tcmplex >/dev/null 2>&1
 147 if [ $? = 0 ]; then
 148         tc_path=`which tcmplex 2>&1`
 149 else
 150         tc_path="x"
 151 fi
 152
 153 if [ -x $tcp_path ]; then
 154         tcbin=tcmplex-panteltje
 155         tcopt=-0
 156 elif [ -x $tc_path ]; then
 157         tcbin=tcmplex
 158         tcopt=-p
 159 else
 160         cat <<EOF
 161 ERROR: Can't find any sutable mplex utility. You can download
 162 tcmplex-panteltje at http://sunsite.rediris.es/
 163 sites2/ibiblio.org/linux/apps/video/tcmplex-panteltje-0.3.tgz
 164 EOF
 165 exit 1
 166 fi
 167
 168 #pharsing parameters
 169
 170 if [ $# -le 0 ]; then
 171         echo "Missing parameter!"
 172         usage
 173         exit 1
 174 fi
 175
 176 case $1 in
 177         -h)
 178                 usage
 179                 exit 1
 180         ;;
 181         -*)
 182                 echo "Missing parameter!"
 183                 usage
 184                 exit 1
 185         ;;
 186         *)
 187                 input=`echo $1 |sed 's/\\ / /'`
 188                 if [ "$input" == "`basename "$input"`" ]; then
 189                         input="`pwd`/$1"
 190                 fi
 191                 nev=`basename "$input" .avi`
 192                 shift 1
 193         ;;
 194 esac
 195
 196 while [ "$1"x != "x" ]; do
 197    case $1 in
 198       -b|--bitrate)
 199         bitrate=$2
 200         shift 1
 201         ;;
 202       -s|--cdsize)
 203         cdsize="$2"
 204         shift 1
 205         ;;
 206       -d|--device)
 207         dev4="$2"
 208         shift 1
 209         ;;
 210       -w|--write)
 211         burning=1
 212         ;;
 213       -c|--clean)
 214         cleaning=1
 215         ;;
 216       -h|--help)
 217       usage
 218         exit 0
 219         ;;
 220    esac
 221    shift 1
 222 done
 223
 224 #checking for cd-recording device
 225 if [ "$burning" == 1 ]; then
 226 echo -n "Searching for cdrecorder device... "
 227
 228 if [ `uname -r |cut -d '.' -f 2` == 4 ]; then
 229         #linux 2.4.x
 230         dev="dev=$dev4"
 231         echo "$dev4"
 232 elif [ `uname -r |cut -d '.' -f 2` == 6 ]; then
 233         #linux 2.6.x
 234         if [ -e /dev/cdrecorder ]; then
 235                 dev='dev=/dev/cdrecorder'
 236                 echo "/dev/cdrecorder"
 237         else
 238                 cat <<EOF
 239 ERROR: Device file /dev/cdrecorder not found. Please link your
 240 cd-recording device to /dev/cdrecorder!
 241 Example: 'cd /dev; ln -s hdc cdrecorder'
 242 EOF
 243                 exit 1
 244         fi
 245 else
 246         cat <<EOF
 247 ERROR: Linux 2.4 or 2.6 series not found. You can download it at
 248 http://www.kernel.org/ ;-)
 249 EOF
 250         exit 1
 251 fi
 252
 253 #checking for cdrecord
 254 which cdrecord >/dev/null 2>&1
 255 cdrbin=`which cdrecord 2>/dev/null`
 256 if [ $? != 0 ]; then
 257         cat <<EOF
 258 ERROR: Can't find cdrecord. You can download it at
 259 ftp://ftp.berlios.de/pub/cdrecord/alpha/cdrtools-2.01a20.tar.gz
 260 EOF
 261 exit 1
 262 else #checking for version >= 2.01a14
 263         echo -n "Checking for cdrecord version >= 2.01a14... "
 264         $cdrbin cuefile=a 2>&1 |grep 'Bad Option' >/dev/null 2>&1
 265         if [ "$?" == 0 ]; then
 266         cat <<EOF
 267 ERROR: Can't find cdrecord version >= 2.01a14. You can download it at
 268 ftp://ftp.berlios.de/pub/cdrecord/alpha/cdrtools-2.01a20.tar.gz
 269 EOF
 270         else
 271                 echo "`$cdrbin -version |cut -d ' ' -f 2`"
 272         fi
 273 fi
 274 fi
 275
 276 #checking for sub avariable
 277
 278 if [ -f "$nev.sub" ]; then
 279         subopts=$nev.sub
 280 else
 281         subopts=''
 282 fi
 283
 284 if [ "x$subopts" == "x" ]; then
 285         subs=''
 286 else
 287         subs='-sub '
 288 fi
 289
 290 #checking for what height needed
 291 inputwidth=`mplayer -vo null -ao null "$input" -frames 1 2>/dev/null |grep '=>'|cut -d ' ' -f 5|cut -d x -f 1`
 292 inputheight=`mplayer -vo null -ao null "$input" -frames 1 2>/dev/null |grep '=>'|cut -d ' ' -f 5|cut -d x -f 2`
 293 svcdaspect=`echo -e "scale=10\n1.596/($inputwidth/$inputheight)"|bc /dev/stdin`
 294 height=`echo -e "scale=10\n$svcdaspect*480"|bc /dev/stdin|cut -d . -f 1`
 295
 296 #checking for ratios less than 1.33
 297 istoohigh=`expr $height \> 577`
 298 if [ "$istoohigh" = 1 ]; then
 299         height=576
 300 fi
 301
 302 #find out the vf options
 303 if [ "$height" = 576 ]; then
 304         vfopts='-vf scale=480:576'
 305 else
 306         #-vf processes filters in reverse order
 307         exy=`echo -e "scale=10\n(576-$height)/2"|bc /dev/stdin|cut -d . -f 1`
 308         vfopts="-vf scale=480:$height,expand=480:576:0:$exy:1"
 309         echo "Using filter options: '$vfopts'"
 310 fi
 311
 312 #finish displaying informations
 313 if [ "$burning" == 1 ]; then
 314 #asking for cd
 315 cat <<EOF
 316
 317 Please insert a blank cd in your cdwriter.
 318 (If you are using a rewritable media,
 319 don't forgot to blank it before using divx2svcd.)
 320 Press any key when your are ready.
 321 EOF
 322 read -n 1 i
 323 fi
 324
 325
 326 ###start working###
 327 #encoding
 328 mencoder -ofps 25 -oac lavc "$input" -ovc lavc -lavcopts vcodec=mpeg2video:vbitrate=$bitrate:acodec=mp2:abitrate=128:keyint=25:aspect=4/3:$paraopts -o "${nev}2.avi" -srate 44100 -of mpeg -channels 2 $vfopts $subs "$subopts"
 329
 330 videosize=`$ls -l "${nev}2.avi"|tr -s ' '|cut -d ' ' -f5`
 331 if ! [ `echo $(( $cdsize*1048576 < $videosize ))` == "1" ]; then
 332         #video is smaller, than $cdsize
 333         mv ${nev}2.avi ${nev}00.mpg
 334 else
 335         #splitting
 336         mplayer -dumpvideo -dumpfile "$nev.m2v" "${nev}2.avi"
 337         mplayer -dumpaudio -dumpfile "$nev.mp2" "${nev}2.avi"
 338         rm "${nev}2.avi"
 339         echo "maxFileSize = $cdsize" > template
 340         $tcbin -i "$nev.m2v" $tcopt "$nev.mp2" -o "$nev.mpg" -m s -F template
 341         rm template
 342         rm "$nev.m2v" "$nev.mp2"
 343 fi
 344
 345 for i in *mpg
 346 do
 347         nev2=`basename "$i" .mpg`
 348         #creating images
 349         vcdimager -t svcd -c "$nev2.cue" -b "$nev2.bin" "$i"
 350         #burning if needs
 351         if [ "$burning" == 1 ]; then
 352                 if [ "$firstcd" != 1 ]; then
 353                         cat <<EOF
 354
 355 Please insert an another blank cd in your cdwriter.
 356 Press any key when your are ready.
 357 EOF
 358                         read -n 1 i
 359                 else
 360                         firstcd=2
 361                 fi
 362                 $cdrbin -v -dao $dev speed=12 gracetime=2 driveropts=burnfree -eject cuefile="$nev2.cue"
 363         fi
 364         #cleaning if needs
 365         if [ "$cleaning" == 1 ]; then
 366                 rm -f "$nev2.cue" "$nev2.bin"
 367         fi
 368 done
 369 rm -f "$nev"*mpg