extra/dvbiscovery/dvbiscovery.sh

   1 #!/bin/sh
   2 ###############################################################################
   3 # dvbiscovery.sh
   4 ###############################################################################
   5 # Copyright (C) 2010 VideoLAN
   6 #
   7 # Authors: Christophe Massiot <massiot@via.ecp.fr>
   8 #
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 2 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program; if not, write to the Free Software
  21 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22 ###############################################################################
  23
  24 CONF_BASE="/usr/local/share/dvblast/dvbiscovery"
  25 #CONF_BASE="./"
  26 DVBLAST=dvblast
  27 LOCK_TIMEOUT=2500
  28 QUIT_TIMEOUT=20000
  29
  30 usage() {
  31         echo "Usage: $0 [-a <adapter #>] [-n <frontend #>] [-S <diseqc sat num>] [-c <conf file>]" >&2
  32         exit 1
  33 }
  34
  35 conf_file_passed=""
  36 adapter=""
  37 frontend=""
  38 diseqc=""
  39
  40 TEMP=`getopt -o a:n: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                 -n)
  55                         frontend="-n $2"
  56                         shift 2
  57                         ;;
  58                 -c)
  59                         conf_file_passed=$2
  60                         shift 2
  61                         ;;
  62                 -S)
  63                         diseqc="-S $2"
  64                         shift 2
  65                         ;;
  66                 --)
  67                         shift
  68                         break
  69                         ;;
  70                 *)
  71                         usage
  72                         ;;
  73         esac
  74 done
  75
  76 type=`$DVBLAST $diseqc $adapter $frontend -f 0 2>&1 | grep '^debug: Frontend' |  sed 's/^debug: Frontend ".*" type "\(.*\)" supports:$/\1/'`
  77 tune=""
  78 conf_file=""
  79
  80 case "$type" in
  81         "QPSK (DVB-S/S2)")
  82                 conf_file="${CONF_BASE}_dvb-s.conf"
  83                 tune=tune_sat
  84                 ;;
  85         "QAM  (DVB-C)")
  86                 conf_file="${CONF_BASE}_dvb-c.conf"
  87                 tune=tune_cable
  88                 ;;
  89         "OFDM (DVB-T)")
  90                 conf_file="${CONF_BASE}_dvb-t.conf"
  91                 tune=tune_dtt
  92                 ;;
  93         "ATSC")
  94                 conf_file="${CONF_BASE}_atsc.conf"
  95                 tune=tune_atsc
  96                 ;;
  97         *)
  98                 echo "unknown frontend type $type" >&2
  99                 exit 1
 100 esac
 101
 102 if test -n "$conf_file_passed"; then
 103         conf_file=$conf_file_passed
 104 fi
 105
 106 if ! test -r "$conf_file"; then
 107         echo "unable to open $conf_file" >&2
 108         exit 1
 109 fi
 110
 111 signal_catch() {
 112         if test $childpid -ne 0; then
 113                 kill $childpid
 114                 wait $childpid
 115         fi
 116         exit 1
 117 }
 118
 119 exec_dvblast() {
 120         tmp_file=`mktemp`
 121
 122         $DVBLAST $diseqc $adapter $frontend -O $LOCK_TIMEOUT -Q $QUIT_TIMEOUT -q4 -x xml $opts >| $tmp_file &
 123         childpid=$!
 124         wait $childpid
 125         if test $? -eq 0; then
 126                 cat $tmp_file
 127                 echo "</TS>"
 128                 rm $tmp_file
 129                 exit 0
 130         fi
 131
 132         childpid=0
 133         rm $tmp_file
 134 }
 135
 136 strtofec() {
 137         case "$1" in
 138                 "NONE") opts="$opts $2 0" ;;
 139                 "1/2") opts="$opts $2 12" ;;
 140                 "2/3") opts="$opts $2 23" ;;
 141                 "3/4") opts="$opts $2 34" ;;
 142                 "4/5") opts="$opts $2 45" ;;
 143                 "5/6") opts="$opts $2 56" ;;
 144                 "6/7") opts="$opts $2 67" ;;
 145                 "7/8") opts="$opts $2 78" ;;
 146                 "8/9") opts="$opts $2 89" ;;
 147                 "AUTO"|*) ;;
 148         esac
 149 }
 150
 151 strtomod() {
 152         case "$1" in
 153                 "QPSK") opts="$opts -m qpsk" ;;
 154                 "QAM16") opts="$opts -m qam_16" ;;
 155                 "QAM32") opts="$opts -m qam_32" ;;
 156                 "QAM64") opts="$opts -m qam_64" ;;
 157                 "QAM128") opts="$opts -m qam_128" ;;
 158                 "8VSB") opts="$opts -m vsb_8" ;;
 159                 "16VSB") opts="$opts -m vsb_16" ;;
 160                 "AUTO"|*) ;;
 161         esac
 162 }
 163
 164 tune_sat() {
 165         childpid=0
 166         trap signal_catch 1 2 3 15
 167
 168         while read sys freq pol srate fec what mod; do
 169                 opts="-f $freq -s $srate"
 170
 171                 case "$sys" in
 172                         "S") ;;
 173                         "S2")
 174                         case "$mod" in
 175                                         "QPSK") opts="$opts -m qpsk" ;;
 176                                         "8PSK") opts="$opts -m psk_8" ;;
 177                                         *)
 178                                                 echo "invalid modulation $mod" >&2
 179                                                 ;;
 180                                 esac
 181                                 ;;
 182                         *)
 183                                 echo "incompatible file" >&2
 184                                 exit 1
 185                                 ;;
 186                 esac
 187
 188                 strtofec $fec "-F"
 189
 190                 case "$pol" in
 191                         "V") opts="$opts -v 13" ;;
 192                         "H") opts="$opts -v 18" ;;
 193                         *) ;;
 194                 esac
 195
 196                 exec_dvblast
 197         done
 198 }
 199
 200 tune_cable() {
 201         childpid=0
 202         trap signal_catch 1 2 3 15
 203
 204         while read sys freq srate fec mod; do
 205                 opts="-f $freq -s $srate"
 206
 207                 case "$sys" in
 208                         "C") ;;
 209                         *)
 210                                 echo "incompatible file" >&2
 211                                 exit 1
 212                                 ;;
 213                 esac
 214
 215                 strtofec $fec "-F"
 216                 strtomod $mod
 217
 218                 exec_dvblast
 219         done
 220 }
 221
 222 tune_dtt() {
 223         childpid=0
 224         trap signal_catch 1 2 3 15
 225
 226         while read sys freq bw fec fec2 mod mode guard hier; do
 227                 opts="-f $freq"
 228
 229                 case "$sys" in
 230                         "T"|"T2") ;;
 231                         *)
 232                                 echo "incompatible file" >&2
 233                                 exit 1
 234                                 ;;
 235                 esac
 236
 237                 case "$bw" in
 238                         "8MHz") opts="$opts -b 8" ;;
 239                         "7MHz") opts="$opts -b 7" ;;
 240                         "6MHz") opts="$opts -b 6" ;;
 241                         "AUTO"|*) ;;
 242                 esac
 243
 244                 strtofec $fec "-F"
 245                 strtofec $fec2 "-K"
 246                 strtomod $mod
 247
 248                 case "$mode" in
 249                         "2k") opts="$opts -X 2" ;;
 250                         "8k") opts="$opts -X 8" ;;
 251                         "AUTO"|*) ;;
 252                 esac
 253
 254                 case "$guard" in
 255                         "1/32") opts="$opts -G 32" ;;
 256                         "1/16") opts="$opts -G 16" ;;
 257                         "1/8") opts="$opts -G 8" ;;
 258                         "1/4") opts="$opts -G 4" ;;
 259                         "AUTO"|*) ;;
 260                 esac
 261
 262                 case "$hier" in
 263                         "NONE") opts="$opts -H 0" ;;
 264                         "1") opts="$opts -H 1" ;;
 265                         "2") opts="$opts -H 2" ;;
 266                         "4") opts="$opts -H 4" ;;
 267                         "AUTO"|*) ;;
 268                 esac
 269
 270                 exec_dvblast
 271         done
 272 }
 273
 274 tune_atsc() {
 275         childpid=0
 276         trap signal_catch 1 2 3 15
 277
 278         while read sys freq mod; do
 279                 opts="-f $freq"
 280
 281                 case "$sys" in
 282                         "A") ;;
 283                         *)
 284                                 echo "incompatible file" >&2
 285                                 exit 1
 286                                 ;;
 287                 esac
 288
 289                 strtomod $mod
 290
 291                 exec_dvblast
 292         done
 293 }
 294
 295 childpid=0
 296 trap signal_catch 1 2 3 15
 297
 298 grep -v "^#" < "$conf_file" 2>/dev/null | $tune &
 299 childpid=$!
 300 wait $childpid
 301
 302 exit 100