Merge branch 'sandbox/tbultel/avirt'

This migrates all the commits that were on the now-deprecated
iot.bzh github.

Bug-AGL: SPEC-2259

Change-Id: I98820a409cd02ee977e0383c1be227dc22344099
Signed-off-by: Thierry Bultel <thierry.bultel@iot.bzh>

18 files changed, 510 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..945388b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+*.swp
+.vscode
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..261eeb9
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,201 @@
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diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..3d4ea57
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,26 @@
+DESTDIR?=/usr/local
+
+MAKEFILE_DIR=$(dir $(realpath $(firstword $(MAKEFILE_LIST))))
+
+SCRIPTS=$(wildcard $(MAKEFILE_DIR)/bin/*)
+MEDIA=$(wildcard $(MAKEFILE_DIR)/media/*)
+
+all: help
+
+help:
+	@echo "Usage (root access required):"
+	@echo "* make install"
+	@echo "  will install scripts in $(DESTDIR)"
+	@echo "* make install DESTDIR=/usr"
+	@echo "  changes the destination dir (in this example, the scripts will be installed in /usr/bin)"
+
+install: $(SCRIPTS) $(MEDIA)
+	@echo "Installing audio scripts $(notdir $(SCRIPTS)) into $(DESTDIR)/bin"
+	mkdir -p $(DESTDIR)/bin
+	install $(SCRIPTS) -m 750 $(DESTDIR)/bin
+	@echo "Installing audio test files $(notdir $(MEDIA)) into $(DESTDIR)/share/4a/media"
+	mkdir -p $(DESTDIR)/share/4a/media
+	install $(MEDIA) -m 640 $(DESTDIR)/share/4a/media
+
+clean:
+	@echo "Cleanup done."
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..17b543b
--- /dev/null
+++ b/README.md
@@ -0,0 +1,35 @@
+# 4a-tools
+
+This repository contains tools, scripts and data to test the 4A stack (Advanced AGL Audio Architecture).
+
+4A is related to [AGL project](https://www.automotivelinux.org/)
+
+## References
+
+### Presentation
+
+* [4a-proposal-Feb18]
+* [4a-roadmap-Apr18]
+* [4a-HALs-by-fiberdyne]
+* [4a-presentation-by-audiokinetics]
+
+### 4A repositories
+
+Repositories related to 4A:
+
+* [agl-service-audio-4a]: high level API providing simple, unified entry point for all AGL audio applications
+* [4a-hal-generic]: HAL manager and default HALs (hardware abstraction layers)
+* [4a-alsa-core]: low level binding to wrap ALSA core operations
+* [4a-softmixer]: reference software mixer using ALSA snd-aloop driver and a user space mixer
+* [apps/mixer]: Mixer Application
+
+[4a-alsa-core]:https://git.automotivelinux.org/src/4a-alsa-core/
+[4a-hal-generic]:https://github.com/iotbzh/4a-hal-generic
+[4a-softmixer]:https://github.com/iotbzh/4a-softmixer
+[agl-service-audio-4a]:https://git.automotivelinux.org/apps/agl-service-audio-4a/
+[apps/mixer]:https://git.automotivelinux.org/apps/mixer/
+
+[4a-proposal-Feb18]:https://iot.bzh/en/publications/32-2018/67-agl-audio-advanced-architecture
+[4a-roadmap-Apr18]:https://iot.bzh/en/publications/32-2018/73-iotbzh-agl-4a-audio-roadmap-apr-18
+[4a-HALs-by-fiberdyne]:https://wiki.automotivelinux.org/_media/agl-distro/201804_aglf2f_fddsp-4a-audio-hal.pptx
+[4a-presentation-by-audiokinetics]:https://schd.ws/hosted_files/aglammeu17/aa/HighLevelAudio_DresdenAMM_Final_0.pdf
diff --git a/bin/4a-api b/bin/4a-api
new file mode 100755
index 0000000..694397f
--- /dev/null
+++ b/bin/4a-api
@@ -0,0 +1,78 @@
+#!/bin/bash
+
+# load shell lib
+. $(dirname $BASH_SOURCE)/lib4a-tools.sh
+
+cmd=$1
+shift
+
+function usage() {
+	log "Usage: $0 <cmd> [opts]"
+	log "Commands:"
+	log "   help: show this help"
+	log "   api <verb> [args]: send direct request to API verb with args"
+	log "   roles: get AHL roles"
+	log "   hals [-a|--all] [-v|--verbose]: get HALs status"
+	log "   mediascanner ... : interact with mediascanner service"
+	log "      example: 4a-api mediascanner media_result \"\""
+	log "   mediaplayer ... : interact with mediaplayer service"
+	log "      example: 4a-api mediaplayer playlist \"\""
+	log "   radio ... : interact with radio service"
+	exit 1
+}
+
+case $cmd in
+	roles)
+		4a-client ahl-4a get_roles ""
+		;;
+	api)
+		4a-client "$@"
+		;;
+	hals)
+		verbose=false
+		all=false
+		while [[ -n "$1" ]]; do
+			case $1 in
+				-a|--all) all=true;;
+				-v|--verbose) verbose=true;;
+				-av) all=true; verbose=true;;
+			esac
+			shift
+		done
+		4a-client 4a-hal-manager loaded "{'verbose':$verbose,'all':$all}"
+		;;
+	mediascanner)
+		mediascanner-client "$@"
+		;;
+	mediaplayer)
+		mediaplayer-client "$@"
+		;;
+	radio)
+		echo "TODO"
+		;;
+	help|-h|--help)
+		usage
+		;;
+	*)
+		error "Invalid command"
+		usage
+		;;
+esac
+
+# commandes HAL manager:
+# 4a-hal-manager loaded
+# 4a-hal-manager loaded { "verbose": true } <= +metadata
+# 4a-hal-manager loaded { "all": true } <= hals avec un json
+# 4a-hal-manager loaded { "all": true, "verbose":true }
+
+# open/close  multimedia
+#afb-client-demo -H -d $WS4A << EOF
+#multimedia { "action":"open" }
+#multimedia { "action":"close" }
+#EOF
+
+# volume  multimedia
+#afb-client-demo -H -d $WS4A << EOF
+#multimedia { "action":"open" }
+#multimedia { "action":"close" }
+#EOF
diff --git a/bin/4a-play b/bin/4a-play
new file mode 100755
index 0000000..7650d4d
--- /dev/null
+++ b/bin/4a-play
@@ -0,0 +1,64 @@
+#!/bin/bash
+
+# load shell lib
+. $(dirname $BASH_SOURCE)/lib4a-tools.sh
+
+function usage() {
+	log "$0 <file> [device] [role]"
+	log "    - 'device' can be hw:X where X is a number or the device name."
+	log "      It can also be hw:X,Y,Z, it is used when playing on the loopback card"
+	log "      which is the 4a default sink."
+	log "      Default: hw:Loopback,0,2"
+	log "    - 'role' is the 4a role to use. In future version it will be guessed"
+	log "      based on the device. Use '4a-api roles' to get a list of known roles"
+	log "      Default: multimedia"
+}
+
+if [ "$#" == "0" ]; then
+	error "No file to play!"
+	usage
+fi
+
+avirt=$(cat /proc/modules | grep avirt_ap_loopback | head -n1 | cut -d ' ' -f 1)
+if [ x$avirt == x ]; then
+hwdev=Loopback,0,2
+else
+hwdev=avirt,0
+fi
+
+FILEPATH="$( realpath "$1" )"
+DEVICE=${2:-"hw:$hwdev"}
+ROLE=${3:-'multimedia'}
+
+CARDID=$( echo "$DEVICE" | cut -d':' -f2 | cut -d',' -f1 )
+
+log "Play '$FILEPATH' on '$DEVICE'"
+
+LOOPBACK_CARDID=$( LANG="C" aplay -l | grep -oEe "^card\\s+[0-9]: Loopback" | uniq | grep -oEe "[0-9]+" )
+if [ "$CARDID" == "Loopback" ] || [ "$CARDID" == "$LOOPBACK_CARDID" ]; then
+	IS_4A_DEVICE=1
+else
+	IS_4A_DEVICE=0
+fi
+
+if [ "$IS_4A_DEVICE" == "1" ]; then
+	log "The selected card (hw:$CARDID) is handle by 4a, call open on '$ROLE'"
+	4a-client ahl-4a "$ROLE" '{ "action": "open" }'
+
+	# BUG: afb-client-demo does not exit an exit code different from zero when api return an error
+	#if [ "$?" -ne "0" ]; then
+	#	exit -1
+	#fi
+fi
+
+if [ "$DEBUG" == "1" ]; then
+	gst-launch-1.0 -v uridecodebin uri="file://$FILEPATH" ! audioconvert ! audioresample ! alsasink device="$DEVICE"
+else
+	gst-launch-1.0 -v uridecodebin uri="file://$FILEPATH" ! audioconvert ! audioresample ! alsasink device="$DEVICE" > /dev/null
+fi
+
+if [ "$IS_4A_DEVICE" == "1" ]; then
+	log "The selected card (hw;$CARDID) is handled by 4a, call close on '$ROLE'"
+	4a-client ahl-4a "$ROLE" '{ "action": "close" }'
+fi
+
diff --git a/bin/4a-status b/bin/4a-status
new file mode 100755
index 0000000..c3e361e
--- /dev/null
+++ b/bin/4a-status
@@ -0,0 +1,50 @@
+#!/bin/bash
+
+# load shell lib
+. $(dirname $BASH_SOURCE)/lib4a-tools.sh
+
+set -o pipefail
+
+ERR="${color_red}ERROR${color_none}"
+WRN="${color_yellow}WARNING${color_none}"
+SUC="${color_green}SUCCESS${color_none}"
+
+EXIT_CODE=0
+
+# ------------------- enumerate sound cards ------------------------
+
+log "---- Audio cards detected ----"
+LANG="C" aplay -l | grep -oEe "^card\\s+[^\\[]+" | sort -u
+
+# -------------------- snd-aloop ------------------------
+
+log ""
+log "---- snd-aloop driver availability ----"
+if zcat /proc/config.gz | grep "CONFIG_SND_ALOOP=y" > /dev/null; then
+	log "$SUC: Built into the kernel"
+else
+	log "$WRN: Not built into the kernel, devices order can randomly change!"
+	if zcat /proc/config.gz | grep "CONFIG_SND_ALOOP=m" > /dev/null; then
+		log "$SUC: snd-aloop is provided!"
+		if lsmod | grep "snd_aloop" > /dev/null; then
+			log "$SUC: snd-aloop is loaded!"
+		else
+			log "$ERR: snd-aloop is not loaded! 4a-softmixer can't work, please load it using: modprobe snd-aloop"
+		fi
+	else
+		log "$ERR: snd-aloop is not provided at all, 4a-softmixer can't work!"
+		EXIT_CODE=1
+	fi
+fi
+
+log ""
+log "---- 4a service status ----"
+if ps x | grep "service-audio-4a" | grep -v "grep" > /dev/null; then
+	log "$SUC: Service is currently running!"
+else
+	log "$WRN: Service is not currently running!"
+	log "It can be started using the following command:"
+	log "systemctl restart *agl-service-audio-4a*.service"
+fi
+
+exit $EXIT_CODE
diff --git a/bin/lib4a-tools.sh b/bin/lib4a-tools.sh
new file mode 100644
index 0000000..f799cc2
--- /dev/null
+++ b/bin/lib4a-tools.sh
@@ -0,0 +1,54 @@
+stdout_in_terminal=0
+[[ -t 1 ]] && stdout_in_terminal=1
+function color {
+	[[ $stdout_in_terminal == 0 ]] && return
+	for k in $*; do
+		case $k in
+			bold) tput bold 2>/dev/null;;
+			none) tput sgr0 2>/dev/null;;
+			*) tput setaf $k 2>/dev/null;;
+		esac
+	done
+}
+color_green=$(color bold 2)
+color_yellow=$(color bold 3)
+color_red=$(color bold 1)
+color_blue=$(color bold 4)
+color_none=$(color none)
+
+function error() { echo "${color_red}$@${color_none}" >&2; }
+function warning() { echo "${color_yellow}$@${color_none}" >&2; }
+function info() { echo "${color_green}$@${color_none}" >&2; }
+function log() { echo "$@" >&2; }
+function debug() { [[ "$DEBUG" == 1 ]] && echo "${color_blue}DEBUG:" "$@" "${color_none}" >&2; }
+
+function 4a-client() {
+	# get port for audio service
+	local port=""
+	local token="HELLO"
+	local unitfile=$( ls /var/local/lib/systemd/system/afm-service-agl-service-audio-4a*.service )
+
+	if [ -f "$unitfile" ]; then
+		log "Detected systemd unit file!"
+		port=$( grep -sr X-AFM-http /var/local/lib/systemd/system/afm-service-agl-service-audio-4a*.service | cut -f2 -d'=' )
+		log "Port detected: $port"
+	else
+		log "No systemd unit file detected, assuming running on host, please set 'API_4A_PORT' and 'API_4A_TOKEN' environment variables to correct values!"
+		port=${API_4A_PORT:-1234}
+		token=${API_4A_TOKEN:-"HELLO"}
+		log "Port: $port, token: $token"
+	fi
+
+	afb-client-demo -H "localhost:$port/api?token=$token&uuid=magic" "$@"
+}
+
+function 4a-roles() {
+	4a-client ahl-4a get_roles "" | tail -n +2 | jq '.response|.[]'
+}
+
+function mediascanner-client() {
+	afb-client-demo -H -d unix:/run/user/0/apis/ws/mediascanner "$@"
+}
+function mediaplayer-client() {
+	afb-client-demo -H -d unix:/run/user/0/apis/ws/mediaplayer "$@"
+}
diff --git a/media/Happy_MBB_75.ogg b/media/Happy_MBB_75.ogg
new file mode 100644
index 0000000..331cba9
--- /dev/null
+++ b/media/Happy_MBB_75.ogg
diff --git a/media/OrchestralBackgroundMusic.mp3 b/media/OrchestralBackgroundMusic.mp3
new file mode 100644
index 0000000..0507784
--- /dev/null
+++ b/media/OrchestralBackgroundMusic.mp3
diff --git a/media/tone-440-mono-44100-16bits.wav b/media/tone-440-mono-44100-16bits.wav
new file mode 100644
index 0000000..facb5d3
--- /dev/null
+++ b/media/tone-440-mono-44100-16bits.wav
diff --git a/media/tone-440-mono-44100-24bits.wav b/media/tone-440-mono-44100-24bits.wav
new file mode 100644
index 0000000..ecb8475
--- /dev/null
+++ b/media/tone-440-mono-44100-24bits.wav
diff --git a/media/tone-440-mono-48000-16bits.wav b/media/tone-440-mono-48000-16bits.wav
new file mode 100644
index 0000000..1baebde
--- /dev/null
+++ b/media/tone-440-mono-48000-16bits.wav
diff --git a/media/tone-440-mono-48000-24bits.wav b/media/tone-440-mono-48000-24bits.wav
new file mode 100644
index 0000000..abd6772
--- /dev/null
+++ b/media/tone-440-mono-48000-24bits.wav
diff --git a/media/tone-440-stereo-44100-16bits.wav b/media/tone-440-stereo-44100-16bits.wav
new file mode 100644
index 0000000..d5c685f
--- /dev/null
+++ b/media/tone-440-stereo-44100-16bits.wav
diff --git a/media/tone-440-stereo-44100-24bits.wav b/media/tone-440-stereo-44100-24bits.wav
new file mode 100644
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--- /dev/null
+++ b/media/tone-440-stereo-44100-24bits.wav
diff --git a/media/tone-440-stereo-48000-16bits.wav b/media/tone-440-stereo-48000-16bits.wav
new file mode 100644
index 0000000..9c5d8c9
--- /dev/null
+++ b/media/tone-440-stereo-48000-16bits.wav
diff --git a/media/tone-440-stereo-48000-24bits.wav b/media/tone-440-stereo-48000-24bits.wav
new file mode 100644
index 0000000..06b448f
--- /dev/null
+++ b/media/tone-440-stereo-48000-24bits.wav