Add codec2 library for Windows. Export AudioResampler class.

CMakeLists.txt

@@ -225,6 +225,11 @@ elseif (WIN32)
   set(OpenCV_DIR "${EXTERNAL_LIBRARY_FOLDER}/opencv" CACHE INTERNAL "")
   set(PKG_CONFIG_EXECUTABLE "${EXTERNAL_LIBRARY_FOLDER}/pkg-config-lite/bin/pkg-config.exe" CACHE INTERNAL "")
 
+  set(CODEC2_FOUND ON CACHE INTERNAL "")
+  set(CODEC2_INCLUDE_DIR "${EXTERNAL_LIBRARY_FOLDER}/codec2/include" CACHE INTERNAL "")
+  set(CODEC2_LIBRARIES "${EXTERNAL_LIBRARY_FOLDER}/codec2/lib/codec2.lib" CACHE INTERNAL "")
+  set(CODEC2_DLL_DIR "${EXTERNAL_LIBRARY_FOLDER}/codec2/lib" CACHE INTERNAL "")
+
   # ffmpeg
   set(FFMPEG_INCLUDE_DIRS "${EXTERNAL_LIBRARY_FOLDER}/ffmpeg/include" CACHE INTERNAL "")
   set(FFMPEG_LIBRARIES "${EXTERNAL_LIBRARY_FOLDER}/ffmpeg/bin" CACHE INTERNAL "")

cmake/cpack/CMakeLists.txt

@@ -211,6 +211,14 @@ elseif(WIN32 OR MINGW)
     )
   endforeach(opencv_dll)
 
+  file(GLOB CODEC2_DLLS "${CODEC2_DLL_DIR}/*${CMAKE_SHARED_LIBRARY_SUFFIX}")
+  foreach(codec2_dll ${CODEC2_DLLS})
+    get_filename_component(codec2_dll_name "${codec2_dll}"  NAME)
+    add_custom_target(copy_codec2_${codec2_dll_name} ALL
+      COMMAND ${CMAKE_COMMAND} -E copy_if_different "${codec2_dll}" "${SDRANGEL_BINARY_BIN_DIR}/"
+    )
+  endforeach(codec2_dll)
+
   # TODO we need a way to fixup_bundle() on the build bin/ directory without call install
   if(BUILD_GUI)
     install(CODE "

sdrbase/audio/audioresampler.h

@@ -22,7 +22,7 @@
 #include "dsp/dsptypes.h"
 #include "audiofilter.h"
 
-class AudioResampler
+class SDRBASE_API AudioResampler
 {
 public:
     AudioResampler();