extra/dvbiscovery/dvbiscovery.sh

   1 #!/bin/sh
   2 ###############################################################################
   3 # dvbiscovery.sh
   4 ###############################################################################
   5 # Copyright (C) 2010 VideoLAN
   6 # $Id$
   7 #
   8 # Authors: Christophe Massiot <massiot@via.ecp.fr>
   9 #
  10 # This program is free software; you can redistribute it and/or modify
  11 # it under the terms of the GNU General Public License as published by
  12 # the Free Software Foundation; either version 2 of the License, or
  13 # (at your option) any later version.
  14 #
  15 # This program is distributed in the hope that it will be useful,
  16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 # GNU General Public License for more details.
  19 #
  20 # You should have received a copy of the GNU General Public License
  21 # along with this program; if not, write to the Free Software
  22 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23 ###############################################################################
  24
  25 CONF_BASE="/usr/local/share/dvblast/dvbiscovery-"
  26 #CONF_BASE="./"
  27 DVBLAST=dvblast
  28 LOCK_TIMEOUT=2500
  29 QUIT_TIMEOUT=15000
  30
  31 usage() {
  32         echo "Usage: $0 [-a <adapter #>] [-S <diseqc sat num>] [-c <conf file>]" >&2
  33         exit 1
  34 }
  35
  36 conf_file_passed=""
  37 adapter=""
  38 diseqc=""
  39
  40 TEMP=`getopt -o a:S:c: -n "$0" -- "$@"`
  41
  42 if test $? -ne 0; then
  43         usage
  44 fi
  45
  46 eval set -- "$TEMP"
  47
  48 while :; do
  49         case "$1" in
  50                 -a)
  51                         adapter="-a $2"
  52                         shift 2
  53                         ;;
  54                 -c)
  55                         conf_file_passed=$2
  56                         shift 2
  57                         ;;
  58                 -S)
  59                         diseqc="-S $2"
  60                         shift 2
  61                         ;;
  62                 --)
  63                         shift
  64                         break
  65                         ;;
  66                 *)
  67                         usage
  68                         ;;
  69         esac
  70 done
  71
  72 type=`$DVBLAST $diseqc $adapter -f 0 2>&1 | grep '^debug: Frontend' |  sed 's/^debug: Frontend ".*" type "\(.*\)" supports:$/\1/'`
  73 tune=""
  74 conf_file=""
  75
  76 case "$type" in
  77         "QPSK (DVB-S/S2)")
  78                 conf_file="${CONF_BASE}_dvb-s.conf"
  79                 tune=tune_sat
  80                 ;;
  81         "QAM  (DVB-C)")
  82                 conf_file="${CONF_BASE}_dvb-c.conf"
  83                 tune=tune_cable
  84                 ;;
  85         "OFDM (DVB-T)")
  86                 conf_file="${CONF_BASE}_dvb-t.conf"
  87                 tune=tune_dtt
  88                 ;;
  89         "ATSC")
  90                 conf_file="${CONF_BASE}_atsc.conf"
  91                 tune=tune_atsc
  92                 ;;
  93         *)
  94                 echo "unknown frontend type $type" >&2
  95                 exit 1
  96 esac
  97
  98 if test -n "$conf_file_passed"; then
  99         conf_file=$conf_file_passed
 100 fi
 101
 102 if ! test -r "$conf_file"; then
 103         echo "unable to open $conf_file" >&2
 104         exit 1
 105 fi
 106
 107 signal_catch() {
 108         if test $childpid -ne 0; then
 109                 kill $childpid
 110         fi
 111         exit 1
 112 }
 113
 114 exec_dvblast() {
 115         tmp_file=`mktemp`
 116
 117         $DVBLAST $diseqc $adapter -O $LOCK_TIMEOUT -Q $QUIT_TIMEOUT $opts 2>| $tmp_file &
 118         childpid=$!
 119         wait $childpid
 120         if test $? -eq 0; then
 121                 cat $tmp_file
 122                 rm $tmp_file
 123                 exit 0
 124         fi
 125
 126         childpid=0
 127         rm $tmp_file
 128 }
 129
 130 strtofec() {
 131         case "$1" in
 132                 "NONE") opts="$opts $2 0" ;;
 133                 "1/2") opts="$opts $2 12" ;;
 134                 "2/3") opts="$opts $2 23" ;;
 135                 "3/4") opts="$opts $2 34" ;;
 136                 "4/5") opts="$opts $2 45" ;;
 137                 "5/6") opts="$opts $2 56" ;;
 138                 "6/7") opts="$opts $2 67" ;;
 139                 "7/8") opts="$opts $2 78" ;;
 140                 "8/9") opts="$opts $2 89" ;;
 141                 "AUTO"|*) ;;
 142         esac
 143 }
 144
 145 strtomod() {
 146         case "$1" in
 147                 "QPSK") opts="$opts -m qpsk" ;;
 148                 "QAM16") opts="$opts -m qam_16" ;;
 149                 "QAM32") opts="$opts -m qam_32" ;;
 150                 "QAM64") opts="$opts -m qam_64" ;;
 151                 "QAM128") opts="$opts -m qam_128" ;;
 152                 "8VSB") opts="$opts -m vsb_8" ;;
 153                 "16VSB") opts="$opts -m vsb_16" ;;
 154                 "AUTO"|*) ;;
 155         esac
 156 }
 157
 158 tune_sat() {
 159         childpid=0
 160         trap signal_catch 1 2 3 15
 161
 162         while read sys freq pol srate fec what mod; do
 163                 opts="-f $freq -s $srate"
 164
 165                 case "$sys" in
 166                         "S") ;;
 167                         "S2")
 168                         case "$mod" in
 169                                         "QPSK") opts="$opts -m qpsk" ;;
 170                                         "8PSK") opts="$opts -m psk_8" ;;
 171                                         *)
 172                                                 echo "invalid modulation $mod" >&2
 173                                                 ;;
 174                                 esac
 175                                 ;;
 176                         *)
 177                                 echo "incompatible file" >&2
 178                                 exit 1
 179                                 ;;
 180                 esac
 181
 182                 strtofec $fec "-F"
 183
 184                 case "$pol" in
 185                         "V") opts="$opts -v 13" ;;
 186                         "H") opts="$opts -v 18" ;;
 187                         *) ;;
 188                 esac
 189
 190                 exec_dvblast
 191         done
 192 }
 193
 194 tune_cable() {
 195         childpid=0
 196         trap signal_catch 1 2 3 15
 197
 198         while read sys freq srate fec mod; do
 199                 opts="-f $freq -s $srate"
 200
 201                 case "$sys" in
 202                         "C") ;;
 203                         *)
 204                                 echo "incompatible file" >&2
 205                                 exit 1
 206                                 ;;
 207                 esac
 208
 209                 strtofec $fec "-F"
 210                 strtomod $mod
 211
 212                 exec_dvblast
 213         done
 214 }
 215
 216 tune_dtt() {
 217         childpid=0
 218         trap signal_catch 1 2 3 15
 219
 220         while read sys freq bw fec fec2 mod mode guard hier; do
 221                 opts="-f $freq"
 222
 223                 case "$sys" in
 224                         "T"|"T2") ;;
 225                         *)
 226                                 echo "incompatible file" >&2
 227                                 exit 1
 228                                 ;;
 229                 esac
 230
 231                 case "$bw" in
 232                         "8MHz") opts="$opts -b 8" ;;
 233                         "7MHz") opts="$opts -b 7" ;;
 234                         "6MHz") opts="$opts -b 6" ;;
 235                         "AUTO"|*) ;;
 236                 esac
 237
 238                 strtofec $fec "-F"
 239                 strtofec $fec2 "-K"
 240                 strtomod $mod
 241
 242                 case "$mode" in
 243                         "2k") opts="$opts -X 2" ;;
 244                         "8k") opts="$opts -X 8" ;;
 245                         "AUTO"|*) ;;
 246                 esac
 247
 248                 case "$guard" in
 249                         "1/32") opts="$opts -G 32" ;;
 250                         "1/16") opts="$opts -G 16" ;;
 251                         "1/8") opts="$opts -G 8" ;;
 252                         "1/4") opts="$opts -G 4" ;;
 253                         "AUTO"|*) ;;
 254                 esac
 255
 256                 case "$hier" in
 257                         "NONE") opts="$opts -H 0" ;;
 258                         "1") opts="$opts -H 1" ;;
 259                         "2") opts="$opts -H 2" ;;
 260                         "4") opts="$opts -H 4" ;;
 261                         "AUTO"|*) ;;
 262                 esac
 263
 264                 exec_dvblast
 265         done
 266 }
 267
 268 tune_atsc() {
 269         childpid=0
 270         trap signal_catch 1 2 3 15
 271
 272         while read sys freq mod; do
 273                 opts="-f $freq"
 274
 275                 case "$sys" in
 276                         "A") ;;
 277                         *)
 278                                 echo "incompatible file" >&2
 279                                 exit 1
 280                                 ;;
 281                 esac
 282
 283                 strtomod $mod
 284
 285                 exec_dvblast
 286         done
 287 }
 288
 289 childpid=0
 290 trap signal_catch 1 2 3 15
 291
 292 grep -v "^#" < "$conf_file" 2>/dev/null | $tune &
 293 childpid=$!
 294 wait $childpid
 295
 296 exit 100