116 lines
4.7 KiB
Bash
Executable File
116 lines
4.7 KiB
Bash
Executable File
#!/bin/bash
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# This script is intended to setup a clean Raspberry Pi system for running Jamulus
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OPUS="opus-1.3.1"
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NCORES=$(nproc)
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# install required packages
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pkgs='alsamixergui build-essential qt5-default libasound2-dev cmake libglib2.0-dev'
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if ! dpkg -s $pkgs >/dev/null 2>&1; then
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read -p "Do you want to install missing packages? " -n 1 -r
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echo
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if [[ $REPLY =~ ^[Yy]$ ]]; then
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sudo apt-get install $pkgs -y
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fi
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fi
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# Opus audio codec, custom compilation with custom modes and fixed point support
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if [ -d "${OPUS}" ]; then
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echo "The Opus directory is present, we assume it is compiled and ready to use. If not, delete the opus directory and call this script again."
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else
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wget https://archive.mozilla.org/pub/opus/${OPUS}.tar.gz
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tar -xzf ${OPUS}.tar.gz
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rm ${OPUS}.tar.gz
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cd ${OPUS}
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if [ ${OPUS} == "opus-1.3.1" ]; then
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echo "@@ -117,13 +117,19 @@ void validate_celt_decoder(CELTDecoder *st)
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#ifndef CUSTOM_MODES
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celt_assert(st->mode == opus_custom_mode_create(48000, 960, NULL));
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celt_assert(st->overlap == 120);
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+ celt_assert(st->end <= 21);
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+#else
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+/* From Section 4.3 in the spec: The normal CELT layer uses 21 of those bands,
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+ though Opus Custom (see Section 6.2) may use a different number of bands
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+
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+ Check if it's within the maximum number of Bark frequency bands instead */
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+ celt_assert(st->end <= 25);
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#endif
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celt_assert(st->channels == 1 || st->channels == 2);
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celt_assert(st->stream_channels == 1 || st->stream_channels == 2);
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celt_assert(st->downsample > 0);
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celt_assert(st->start == 0 || st->start == 17);
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celt_assert(st->start < st->end);
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- celt_assert(st->end <= 21);
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#ifdef OPUS_ARCHMASK
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celt_assert(st->arch >= 0);
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celt_assert(st->arch <= OPUS_ARCHMASK);" >> opus_patch_file.diff
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patch celt/celt_decoder.c opus_patch_file.diff
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fi
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./configure --enable-custom-modes --enable-fixed-point
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make -j${NCORES}
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mkdir include/opus
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cp include/*.h include/opus
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cd ..
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fi
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# Jack audio without DBUS support
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if [ -d "jack2" ]; then
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echo "The Jack2 directory is present, we assume it is compiled and ready to use. If not, delete the jack2 directory and call this script again."
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else
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git clone https://github.com/jackaudio/jack2.git
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cd jack2
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git checkout v1.9.12
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./waf configure --alsa --prefix=/usr/local --libdir=$(pwd)/build
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./waf -j${NCORES}
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mkdir build/jack
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cp build/*.so build/jack
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cp build/common/*.so build/jack
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cp build/example-clients/*.so build/jack
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cd ..
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# give audio group rights to do realtime
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if grep -Fq "@audio" /etc/security/limits.conf; then
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echo "audio group already has realtime rights"
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else
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sudo sh -c 'echo "@audio - rtprio 95" >> /etc/security/limits.conf'
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sudo sh -c 'echo "@audio - memlock unlimited" >> /etc/security/limits.conf'
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fi
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fi
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# compile Jamulus with external Opus library
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cd ..
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qmake "CONFIG+=opus_shared_lib raspijamulus headless" "INCLUDEPATH+=distributions/${OPUS}/include" "QMAKE_LIBDIR+=distributions/${OPUS}/.libs" "INCLUDEPATH+=distributions/jack2/common" "QMAKE_LIBDIR+=distributions/jack2/build/common" Jamulus.pro
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make -j${NCORES}
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# get first USB audio sound card device
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ADEVICE=$(aplay -l|grep "USB Audio"|tail -1|cut -d' ' -f3)
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echo "Using USB audio device: ${ADEVICE}"
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# write Jamulus ini file for setting the client name and buffer settings, if there is
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# just one CPU core, we assume that we are running on a Raspberry Pi Zero
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JAMULUSINIFILE="Jamulus.ini"
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NAME64=$(echo "Raspi $(hostname)"|cut -c -16|tr -d $'\n'|base64)
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if [ "$NCORES" -gt "1" ]; then
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echo -e "<client>\n <name_base64>${NAME64}</name_base64>" > ${JAMULUSINIFILE}
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echo -e " <autojitbuf>1</autojitbuf>\n <jitbuf>3</jitbuf>\n <jitbufserver>3</jitbufserver>" >> ${JAMULUSINIFILE}
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echo -e " <audiochannels>2</audiochannels>\n <audioquality>1</audioquality>\n</client>" >> ${JAMULUSINIFILE}
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else
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echo -e "<client>\n <name_base64>${NAME64}</name_base64>" > ${JAMULUSINIFILE}
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echo -e " <autojitbuf>1</autojitbuf>\n <jitbuf>3</jitbuf>\n <jitbufserver>3</jitbufserver>" >> ${JAMULUSINIFILE}
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echo -e " <audiochannels>0</audiochannels>\n <audioquality>1</audioquality>\n</client>" >> ${JAMULUSINIFILE}
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fi
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# taken from "Raspberry Pi and realtime, low-latency audio" homepage at wiki.linuxaudio.org
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#sudo service triggerhappy stop
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#sudo service dbus stop
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#sudo mount -o remount,size=128M /dev/shm
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# start Jack2 and Jamulus in headless mode
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export LD_LIBRARY_PATH="distributions/${OPUS}/.libs:distributions/jack2/build:distributions/jack2/build/common"
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distributions/jack2/build/jackd -R -T --silent -P70 -p16 -t2000 -d alsa -dhw:${ADEVICE} -p 128 -n 3 -r 48000 -s &
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./Jamulus -n -i ${JAMULUSINIFILE} -c jamulus.fischvolk.de &
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echo "###---------- PRESS ANY KEY TO TERMINATE THE JAMULUS SESSION ---------###"
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read -n 1 -s -r -p ""
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killall Jamulus
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