lua test

.gitignore

@@ -51,3 +51,4 @@ modules.order
 Module.symvers
 Mkfile.old
 dkms.conf
+.vscode/

.vscode/settings.json

@@ -47,5 +47,5 @@
         "compare": "c",
         "cstdint": "c"
     },
-    "C_Cpp.errorSquiggles": "disabled"
+    "C_Cpp.errorSquiggles": "disabled",
 }

LICENCE

@@ -1,21 +1,24 @@
-MIT License
+This is free and unencumbered software released into the public domain.
 
-Copyright (c) 2024 Kuba
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
 
-Permission is hereby granted, free of charge, to any person obtaining a copy
+In jurisdictions that recognize copyright laws, the author or authors
-of this software and associated documentation files (the "Software"), to deal
+of this software dedicate any and all copyright interest in the
-in the Software without restriction, including without limitation the rights
+software to the public domain. We make this dedication for the benefit
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+of the public at large and to the detriment of our heirs and
-copies of the Software, and to permit persons to whom the Software is
+successors. We intend this dedication to be an overt act of
-furnished to do so, subject to the following conditions:
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
 
-The above copyright notice and this permission notice shall be included in all
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-copies or substantial portions of the Software.
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
 
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+For more information, please refer to <https://unlicense.org/>
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.

README.md

@@ -5,7 +5,7 @@ FM95 is a audio processor for FM, it does:
 - Pre-Emphasis
 - Low Pass Filtering
 - AGC
-- Stereo (Polar too)
+- Stereo
 - SCA
 - BS412 (mpx power limiter, simplest implementation ever)
 
@@ -40,7 +40,7 @@ Should run completly fine on a pi 5, fine on a pi 3b (30% cpu, 45% with lpf)
 
 ## Other Apps
 
-FM95 also includes some other apps, such as chimer95 which generates GTS tones each half hour, and dcf95 which creates a DCF77 compatible signal, and vban95 now which is a buffered VBAN receiver. And now also SCA generation was moved to sca95 from fm95!
+FM95 also includes some other apps, such as chimer95 which generates GTS tones each half hour, and vban95 now which is a buffered VBAN receiver. And now also SCA generation was moved to sca95 from fm95!
 
 ## Usage of other projects
 

src/fm95.c

@@ -14,6 +14,10 @@
 #include "../filter/bs412.h"
 #include "../filter/gain_control.h"
 
+#include <lua.h>
+#include <lualib.h>
+#include <lauxlib.h>
+
 #define BUFFER_SIZE 4096 // This defines how many samples to process at a time, because the loop here is this: get signal -> process signal -> output signal, and when we get signal we actually get BUFFER_SIZE of them
 
 #include "../io/audio.h"
@@ -88,6 +92,7 @@ typedef struct
 	BS412Compressor bs412;
 	StereoEncoder stencode;
 	AGC agc;
+	lua_State* lua;
 } FM95_Runtime;
 
 typedef struct {
@@ -231,6 +236,12 @@ int run_fm95(const FM95_Config config, FM95_Runtime* runtime) {
 				mod_r = apply_preemphasis(&runtime->preemp_r, mod_r);
 			}
 
+			lua_pushnumber(runtime->lua, mod_l);
+			lua_setglobal(runtime->lua, "left");
+			lua_pushnumber(runtime->lua, mod_r);
+			lua_setglobal(runtime->lua, "right");
+			luaL_dofile(runtime->lua, "/home/user/fm95_lua_test.lua");
+
 			mpx = stereo_encode(&runtime->stencode, config.stereo, mod_l, mod_r);
 
 			if(rds_on) {
@@ -266,6 +277,7 @@ int run_fm95(const FM95_Config config, FM95_Runtime* runtime) {
 				break;
 			}
 		}
+		lua_gc(runtime.lua, LUA_GCSTEP);
 	}
 
 	return 0;
@@ -580,6 +592,8 @@ int main(int argc, char **argv) {
 
 	FM95_Runtime runtime;
 	memset(&runtime, 0, sizeof(runtime));
+	runtime.lua = luaL_newstate();
+	lua_gc(runtime.lua, LUA_GCSTOP);
 
 	config.options.mpx_on = (strlen(dv_names.mpx) != 0);
 	config.options.rds_on = (strlen(dv_names.rds) != 0 && config.rds_streams != 0);