Fix some warnings and build a single shared lib

Android.bp

@@ -1,5 +1,6 @@
-filegroup {
-    name: "v4aCommonFile",
+cc_defaults {
+    name: "v4a_defaults",
+    vendor: true,
     srcs: [
         // Main
         "src/viper/ViPER.cpp",
@@ -51,65 +52,37 @@ filegroup {
         "src/viper/utils/TimeConstDelay.cpp",
         "src/viper/utils/WaveBuffer.cpp",
     ],
-}
-
-cc_defaults {
-    name: "v4aDefaults",
-    srcs: [
-        ":v4aCommonFile",
+    export_include_dirs: [
+        "src/include",
     ],
     cflags: [
-        "-O3",
-        "-DNDEBUG",
+        "-O2",
         "-DVIPER_VERSION=20240314",
-        "-DAOSP_SOONG_BUILD",
-    ],
-    header_libs: [
-        "libhardware_headers",
-    ],
-    lto: {
-        // TODO: full was removed in https://android-review.googlesource.com/c/platform/build/soong/+/2609595
-        thin: true,
-    },
-}
 
-cc_library_shared {
-    name: "libv4aidl_re",
-    vendor: true,
-    relative_install_path: "soundfx",
-    defaults: [
-        "aidlaudioeffectservice_defaults",
-        "v4aDefaults",
+        "-Wno-unused-parameter",
     ],
-    srcs: [
-        "src/ViPER4Aidl.cpp",
-        // AOSP
-        ":effectCommonFile",
-    ],
-    cflags: [
-        "-O3",
-        "-DNDEBUG",
-        "-DVIPER_VERSION=20240314",
-        "-DAOSP_SOONG_BUILD",
-        "-DBACKEND_NDK",
-    ],
-    whole_static_libs: [
-        "libaudio_aidl_conversion_common_ndk",
-        "libstagefright_foundation",
-    ],
-}
-
-cc_library_shared {
-    name: "libv4a_re",
-    vendor: true,
-    relative_install_path: "soundfx",
-    defaults: [
-        "v4aDefaults",
-    ],
-    srcs: [
-        "src/ViPER4Android.cpp",
+    cppflags: [
+        "-Wno-unused-parameter",
     ],
     shared_libs: [
         "liblog",
     ],
+    header_libs: [
+        "libaudioeffects",
+        "libaudioutils_headers",
+    ],
+    relative_install_path: "soundfx",
+}
+
+cc_library_shared {
+    name: "libv4a_re",
+    defaults: [
+        "aidlaudioeffectservice_defaults",
+        "v4a_defaults",
+    ],
+    srcs: [
+        ":effectCommonFile",
+        "src/ViPER4Aidl.cpp",
+        "src/ViPER4Android.cpp",
+    ],
 }

src/ViPER4Android.cpp

@@ -1,11 +1,5 @@
 #include <cstring>
-
-#ifdef AOSP_SOONG_BUILD
 #include <hardware/audio_effect.h>
-#else
-#include <essential.h>
-#endif
-
 #include "viper/ViPER.h"
 #include <constants.h>
 #include "ViperContext.h"

src/ViperContext.h

@@ -2,11 +2,7 @@
 
 #include <vector>
 #include <cstddef>
-#ifdef AOSP_SOONG_BUILD
 #include <system/audio_effect.h>
-#else
-#include <essential.h>
-#endif
 #include "viper/ViPER.h"
 #include <string>
 

src/viper/ViPER.cpp

@@ -4,11 +4,11 @@
 #include <log.h>
 
 ViPER::ViPER() :
+    adaptiveBuffer(2, 4096),
+    waveBuffer(2, 4096),
+    iirFilter(10),
     frameCount(0),
     samplingRate(VIPER_DEFAULT_SAMPLING_RATE),
-    adaptiveBuffer(AdaptiveBuffer(2, 4096)),
-    waveBuffer(WaveBuffer(2, 4096)),
-    iirFilter(IIRFilter(10)),
     gainL(1.0),
     gainR(1.0) {
     ALOGI("Welcome to ViPER FX");

src/viper/effects/Convolver.h

@@ -36,7 +36,7 @@ private:
     uint32_t unknown3;
     uint32_t unknown4;
     uint32_t currentKernelBufferCrc;
-    int isQuadChannel;
+//    int isQuadChannel;
     float crossChannel;
     bool isValidCrossChannel;
     uint32_t samplingRate;