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-rw-r--r--conf.d/project/samples/softmixer-multi-01.lua223
1 files changed, 223 insertions, 0 deletions
diff --git a/conf.d/project/samples/softmixer-multi-01.lua b/conf.d/project/samples/softmixer-multi-01.lua
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+--[[
+ Copyright (C) 2016 "IoT.bzh"
+ Author Fulup Ar Foll <fulup@iot.bzh>
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+
+ NOTE: strict mode: every global variables should be prefixed by '_'
+--]]
+
+-- Static variables should be prefixed with _
+_EventHandle={}
+
+-- Call when AlsaCore return HAL active list
+function _AlsaPingCB_ (source, result, context)
+
+ AFB:notice (source, "--InLua-- PingCB: result='%s'", Dump_Table(result))
+
+end
+
+
+-- Display receive arguments and echo them to caller
+function _mixer_config_ (source, args)
+ do
+ local error
+ local response
+
+
+ -- ======================= Loop PCM ===========================
+
+ local snd_aloop = {
+ ["uid"] = "Alsa-Loop",
+ ["devpath"] = "/dev/snd/by-path/platform-snd_aloop.0",
+ ["devices"] = {["playback"]=0,["capture"]=1},
+ ["subdevs"] = {
+ {["subdev"]= 0, ["numid"]= 51},
+ {["subdev"]= 1, ["numid"]= 57},
+ {["subdev"]= 2, ["numid"]= 63},
+ {["subdev"]= 3, ["numid"]= 69},
+ {["subdev"]= 4, ["numid"]= 75},
+ {["subdev"]= 5, ["numid"]= 81},
+ {["subdev"]= 6, ["numid"]= 87},
+ {["subdev"]= 7, ["numid"]= 93},
+ }
+ }
+
+ error,response= L2C:snd_loops (source, snd_aloop)
+ if (error ~= 0) then
+ AFB:error (source, "--InLua-- L2C:snd_loops fail to attach sndcards=%s", Dump_Table(aloop))
+ goto OnErrorExit
+ else
+ AFB:notice (source, "--InLua-- L2C:snd_loops done response=%s\n", Dump_Table(response))
+ end
+
+
+ -- ============================= Sound Cards ===================
+
+ local snd_params = {
+ ["rate"] = 48000,
+ ["channels"]= 2,
+ }
+
+ local sndcard_0 = {
+ ["uid"]= "YAMAHA-APU70",
+ ["devpath"]= "/dev/snd/by-id/usb-YAMAHA_Corporation_YAMAHA_AP-U70_USB_Audio_00-00",
+ ["params"] = snd_params,
+ ["sink"] = {
+ [0]= {["uid"]= "front-right", ["port"]= 0},
+ [1]= {["uid"]= "front-left", ["port"]= 1},
+ }
+ }
+
+ local sndcard_1 = {
+ ["uid"]= "Jabra-Solemate",
+ ["devpath"]= "/dev/snd/by-id/usb-0b0e_Jabra_SOLEMATE_v1.34.0-00",
+ ["params"] = snd_params,
+ ["sink"] = {
+ [0]= {["uid"]= "front-right", ["port"]= 0},
+ [1]= {["uid"]= "front-left", ["port"]= 1},
+ }
+ }
+
+ local sndcard_2 = {
+ ["uid"]= "Jabra-410",
+ ["params"] = snd_params,
+ ["devpath"]= "/dev/snd/by-id/usb-0b0e_Jabra_SPEAK_410_USB_745C4B15BD11x010900-00",
+ ["sink"] = {
+ [0]= {["uid"]= "back-right", ["port"]= 0},
+ [1]= {["uid"]= "back-left", ["port"]= 1},
+ }
+ }
+
+ -- group sound card as one multi channels card
+ local sndcards= {
+ sndcard_0,
+ sndcard_2,
+ }
+
+ error,response= L2C:snd_cards (source, sndcards)
+ if (error ~= 0) then
+ AFB:error (source, "--InLua-- L2C:snd_cards fail to attach sndcards=%s", Dump_Table(sndcards))
+ goto OnErrorExit
+ else
+ AFB:notice (source, "--InLua-- L2C:snd_cards done response=%s\n", Dump_Table(response))
+ end
+
+ -- ============================= Zones ===================
+
+ local zone_front= {
+ ["uid"] = "front-seats",
+ ["type"] = "playback",
+ ["mapping"] = {
+ {["target"]="front-right",["channel"]=0},
+ {["target"]="front-left" ,["channel"]=1},
+ }
+ }
+
+ local zone_back= {
+ ["uid"] = "back-seats",
+ ["type"] = "playback",
+ ["mapping"] = {
+ {["target"]="back-right",["channel"]=0},
+ {["target"]="back-left" ,["channel"]=1},
+ }
+ }
+
+ local zone_all= {
+ ["uid"] = "all-seats",
+ ["type"] = "playback",
+ ["mapping"] = {
+ {["target"]="front-right",["channel"]=0},
+ {["target"]="front-left" ,["channel"]=1},
+ {["target"]="back-right" ,["channel"]=0},
+ {["target"]="back-left" ,["channel"]=1},
+ }
+ }
+
+ local multi_zones = {
+ zone_all,
+ zone_front,
+ zone_back,
+ }
+
+ error,response= L2C:snd_zones (source, multi_zones)
+ if (error ~= 0) then
+ AFB:error (source, "--InLua-- L2C:snd_zones fail to attach sndcards=%s", Dump_Table(multi_zones))
+ goto OnErrorExit
+ else
+ AFB:notice (source, "--InLua-- L2C:snd_zones done response=%s\n", Dump_Table(response))
+ end
+
+ -- =================== Audio Stream ============================
+
+ local stream_music= {
+ ["uid"] = "multimedia",
+ ["zone"] = "all-seats",
+ ["volume"]= 70,
+ ["params"] = {
+ ["rate"] = 44100,
+ ["rate"] = 48000,
+ ["format"]= "S16_LE",
+ },
+ ["mute"] = false,
+ }
+
+ local stream_navigation= {
+ ["uid"] = "navigation",
+ ["zone"] = "front-seats",
+ ["volume"]= 80,
+ ["mute"] = false,
+ }
+
+ local stream_children= {
+ ["uid"] = "children",
+ ["zone"] = "back-seats",
+ ["volume"]= 50,
+ ["mute"] = false,
+ }
+
+ local snd_streams = {
+ stream_music,
+ stream_navigation,
+ stream_children,
+ }
+
+ error,response= L2C:snd_streams (source, snd_streams)
+ if (error ~= 0) then
+ AFB:error (source, "--InLua-- L2C:snd_streams fail to attach sndcards=%s", Dump_Table(aloop))
+ goto OnErrorExit
+ else
+ AFB:notice (source, "--InLua-- L2C:streams_loops done response=%s\n", Dump_Table(response))
+ end
+
+
+ -- ================== Happy End =============================
+ AFB:notice (source, "--InLua-- _mixer_config_ done")
+ return 0 end
+
+ -- ================= Unhappy End ============================
+ ::OnErrorExit::
+ AFB:error (source, "--InLua-- snd_attach fail")
+ return 1 -- unhappy end --
+end
+
+-- Display receive arguments and echo them to caller
+function _init_softmixer_ (source, args)
+
+ -- create event to push change audio roles to potential listeners
+ _EventHandle=AFB:evtmake(source, "control")
+
+ _mixer_config_ (source, args)
+
+end