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36
README.md
36
README.md
@@ -14,7 +14,7 @@
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* Einrichtung ALSA
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* über welches Device kann das Mikro angesprochen werden? (hier: plughw:1,0)
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#### Entfernter Server (server)
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#### Voraussetzungen entfernter Server (server)
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* sshd
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* apt-get install rsync
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@@ -36,6 +36,7 @@ Auf dem Raspi folgendes ausführen:
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```
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git clone https://git.hs42.de/hs/sumsel.git
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cd /sumsel
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chmod a+x sumsel.sh
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cp sumsel.conf.dist sumsel.conf
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```
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Anschliessend Variablen in ./sumsel.conf setzen:
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@@ -49,27 +50,40 @@ Anschliessend Variablen in ./sumsel.conf setzen:
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| UPL_DIR | optional | Ordner in dem die MP3 Dateien abgelegt werden | ./upqueue |
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| UPL_SUFFIX | optional | Ordner in dem die MP3 Dateien abgelegt werden | sumsi |
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## Skripte
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| Kommando | Aktion |
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| ------------ | ------------------------ |
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| sumsel.sh -s | Simulieren |
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| sumsel.sh -r | Aufnehmen |
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| sumsel.sh -c | Konvertieren + Hochladen |
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## Betrieb
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### Endloses Aufnehmen
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Im Dauerbetrieb laufen zwei Jobs:
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| Jobtyp | Bezeichnung | Kommando | Betriebsart |
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| ------- |------------------------- | ------------------------------- | -------------- |
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| record | Aufnahme der WAV Dateien | ./sumsel.sh -r -C ./sumsel.conf | endlos |
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| convert | Konvertierung + Upload | ./sumsel.sh -c -C ./sumsel.conf | alle 5 Minuten |
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Die Jobs können über cron gestartet werden. Das Skript setzt einen Lock und sorgt dafür, dass von
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jeden Jobtyp nur eine Instanz laufen kann. Stellt das Script fest, dass bereits eine Instanz läuft,
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wird die aktuelle Instanz mit der Meldung "LOCK error" beendet.
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```
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pi@raspi:~> ./record.sh
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hs@raspi4:~/dev/stage/sumsel $ ./sumsel.sh -c -C ./sumsel.conf
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LOCK error
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```
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### Endloses Simulieren
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Beispiel für crontab:
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```
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pi@raspi:~> ./simulate.sh
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*/5 * * * * <path>/sumsel.sh -r -C <path>/sumsel.conf >> <path>/sumsel_r.log
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1,10,11,21,31,41,51 * * * * <path>/sumsel.sh -c -C <path>/sumsel.conf >> <path>/sumsel_c.log
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```
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### Konvertieren und rsync Upload
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Einplanung über crond
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```
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pi@raspi:~> ./convert.sh
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```
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### GIT commands
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* git status
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27
convert.sh
27
convert.sh
@@ -1,27 +0,0 @@
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#!/bin/bash
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. ./sumsel.defaults
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. ./sumsel.conf
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. ./sumsel_functions.incl
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if set_lockfile;
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then
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#Alle WAV Files ausser das letzte File.
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#Das letzte File wird gerade recorded und wird beim naechsten Durchlauf verarbeitet
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FILES=$(ls -tr ${REC_DIR} |head -n -1)
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for F in ${FILES}
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do
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#echo ${F}
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#Ermittle ctime des WAV Files
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CTIME=$(date -r "${REC_DIR}/${F}" +"%Y%m%d%H%M%S")
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ffmpeg -i "${REC_DIR}/${F}" -acodec mp3 "${UPL_DIR}/${CTIME}_${UPL_SUFFIX}.mp3"
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rm "${REC_DIR}/${F}"
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done
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rsync -avzh --remove-source-files ${UPL_DIR} ${REMOTE_DIR}
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del_lockfile
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else
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echo "LOCK error"
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fi
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@@ -1,8 +0,0 @@
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#!/bin/bash
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. ./sumsel.defaults
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. ./sumsel.conf
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. ./sumsel_functions.incl
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arecord --format=cd --device=${REC_DEVICE} --max-file-time ${REC_FILE_TIME} ${REC_DIR}/${REC_PREFIX}.wav
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16
simulate.sh
16
simulate.sh
@@ -1,16 +0,0 @@
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#!/bin/bash
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. ./sumsel.defaults
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. ./sumsel.conf
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. ./sumsel_functions.incl
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COUNTER=0
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echo "Press [CTRL+C] to stop.."
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while :
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do
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sleep 1
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COUNTER=$[$COUNTER +1]
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dst_fn="${REC_DIR}/${REC_PREFIX}-${COUNTER}.wav"
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cp ${SIM_EXAMPLE_FILE} ${dst_fn}
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done
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@@ -1,23 +0,0 @@
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LOCK_DIR=/var/lock
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SIM_EXAMPLE_FILE=./res/test.wav
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#Laenge der WAV Dateien in Sekunden
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REC_FILE_TIME=360
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#Ordner, ind dem die WAV Dateien abgelegt werden
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#wenn der Ordner nicht existiert, wird er angelegt
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REC_DIR=./recordings
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#Dateiname der WAV Dateien
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# sums-01.wav, sums-02.wav, ...
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REC_PREFIX=sums
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#Ordner in dem die MP3 Dateien abgelegt werden
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#wenn der Ordner nicht existiert, wird er angelegt
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UPL_DIR=./upqueue
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#Dateiname der MP3 Dateien
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# 20210130101112-sumsi.mp3, 20210130101120-sumsi.mp3, ...
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UPL_SUFFIX=sumsi
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202
sumsel.sh
Executable file
202
sumsel.sh
Executable file
@@ -0,0 +1,202 @@
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#!/bin/bash
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VERSION="0.3"
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LOCK_DIR=/var/lock
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SIM_EXAMPLE_FILE=./res/test.wav
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#Laenge der WAV Dateien in Sekunden
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REC_FILE_TIME=360
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#Ordner, ind dem die WAV Dateien abgelegt werden
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#wenn der Ordner nicht existiert, wird er angelegt
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REC_DIR=./recordings
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#Dateiname der WAV Dateien
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# sums-01.wav, sums-02.wav, ...
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REC_PREFIX=sums
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#Ordner in dem die MP3 Dateien abgelegt werden
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#wenn der Ordner nicht existiert, wird er angelegt
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UPL_DIR=./upqueue
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#Dateiname der MP3 Dateien
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# 20210130101112-sumsi.mp3, 20210130101120-sumsi.mp3, ...
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UPL_SUFFIX=sumsi
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usage() {
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echo "Usage: $0 [-h] (-s|-r|-t) [-C <configfile>]" 1>&2;
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echo -e '\t-h Usage' 1>&2;
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echo -e '\t-v Version' 1>&2;
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echo -e '' 1>&2;
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echo -e '\t-s Simulation' 1>&2;
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echo -e '\t-r Aufnahme' 1>&2;
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echo -e '\t-c Konvertierung' 1>&2;
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echo -e '' 1>&2;
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echo -e '\t-C <configfile> Konfiguration laden' 1>&2;
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echo "" 1>&2;
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echo "Doku: https://git.hs42.de/hs/sumsel" 1>&2;
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exit 1;
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}
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mode=''
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lock_mode=''
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while getopts ":hsrcC:v" options;
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do
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case "${options}" in
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v)
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echo "$0 version ${VERSION}" 1>&2;
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exit 1
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;;
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h)
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usage
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;;
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"s" | "r" | "c") #simulate
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mode=${options}
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;;
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C)
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config=${OPTARG}
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if [ -f ${config} ]; then
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. ${config}
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else
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echo "config file not found: ${config}"
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exit
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fi
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;;
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*)
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echo "unknown option"
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usage
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;;
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esac
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done
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set_lockfile() {
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local basename=$(basename "$0")
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if [ ! -z ${1+x} ]; then
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basename="${basename}_$1"
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fi
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local lock_file="${LOCK_DIR}/${basename}"
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local random_file=$(mktemp --tmpdir=${LOCK_DIR})
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echo $$ > ${random_file}
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mv -n ${random_file} ${lock_file}
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if [ -e ${random_file} ]; then
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false
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else
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true
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fi
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}
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del_lockfile() {
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local basename=$(basename "$0")
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if [ ! -z ${1+x} ]; then
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basename="${basename}_$1"
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fi
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local lock_file="${LOCK_DIR}/${basename}"
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rm ${lock_file}
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}
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cleanup() {
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del_lockfile ${lock_mode}
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exit 1
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}
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check_var_exists() {
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local var_name=$1
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if [[ ! -v ${var_name} ]]; then
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echo "${var_name} not set"
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cleanup
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fi
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}
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ctrl_c() {
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echo "** Trapped CTRL-C" 1>&2;
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cleanup
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}
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simulate() {
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check_var_exists "REC_DIR"
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check_var_exists "REC_PREFIX"
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check_var_exists "SIM_EXAMPLE_FILE"
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local counter=0
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local dst_fn=""
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mkdir -p ${REC_DIR}
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echo "Press [CTRL+C] to stop.." 1>&2;
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trap ctrl_c INT
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while :
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do
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sleep ${REC_FILE_TIME}
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counter=$[$counter +1]
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dst_fn="${REC_DIR}/${REC_PREFIX}-${counter}.wav"
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cp ${SIM_EXAMPLE_FILE} ${dst_fn}
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done
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}
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record() {
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check_var_exists "REC_DEVICE"
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check_var_exists "REC_FILE_TIME"
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check_var_exists "REC_PREFIX"
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check_var_exists "REC_DIR"
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mkdir -p ${REC_DIR}
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trap ctrl_c INT
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arecord --format=cd --device=${REC_DEVICE} --buffer-size=192000 --max-file-time=${REC_FILE_TIME} --use-strftime ${REC_DIR}/${REC_PREFIX}%Y%m%d%H%M%v.wav
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}
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convert() {
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check_var_exists "REC_DIR"
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check_var_exists "UPL_DIR"
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check_var_exists "UPL_SUFFIX"
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check_var_exists "REMOTE_DIR"
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mkdir -p ${REC_DIR}
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mkdir -p ${UPL_DIR}
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#Alle WAV Files ausser das letzte File.
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#Das letzte File wird gerade recorded und wird beim naechsten Durchlauf verarbeitet
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local FILES=$(ls -tr ${REC_DIR} |head -n -1)
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for F in ${FILES}
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do
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#Ermittle ctime des WAV Files
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local CTIME=$(date -r "${REC_DIR}/${F}" +"%Y%m%d%H%M%S")
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ffmpeg -i "${REC_DIR}/${F}" -acodec mp3 "${UPL_DIR}/${CTIME}_${UPL_SUFFIX}.mp3"
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rm "${REC_DIR}/${F}"
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done
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rsync -avzh --remove-source-files ${UPL_DIR} ${REMOTE_DIR}
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}
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case ${mode} in
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s) #Simulation
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lock_mode=record
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func=simulate
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;;
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r) #Aufnahme
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lock_mode=record
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func=record
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;;
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c) #Konvertierung
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lock_mode=convert
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func=convert
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;;
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*)
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echo "mode not set" 1>&2;
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exit 1
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;;
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esac
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if set_lockfile ${lock_mode}; then
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${func}
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del_lockfile ${lock_mode}
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else
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echo "LOCK error" 1>&2;
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exit 1
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fi
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@@ -1,26 +0,0 @@
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function set_lockfile {
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local BASENAME=$(basename "$0")
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local LOCK_FILE="${LOCK_DIR}/${BASENAME}"
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local RANDOM_FILE=$(mktemp --tmpdir=${LOCK_DIR})
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echo $$ > ${RANDOM_FILE}
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mv -n ${RANDOM_FILE} ${LOCK_FILE}
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if [ -e ${RANDOM_FILE} ] ; then
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OTHER_PID=$(cat ${LOCK_FILE})
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false
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else
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true
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fi
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}
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function del_lockfile {
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local BASENAME=$(basename "$0")
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local LOCK_FILE="${LOCK_DIR}/${BASENAME}"
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rm ${LOCK_FILE}
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}
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mkdir -p ${REC_DIR}
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mkdir -p ${UPL_DIR}
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Reference in New Issue
Block a user