Move alhelpers and alffmpeg code to a common sub-directory

CMakeLists.txt

@@ -833,7 +833,9 @@ ENDIF()
 
 IF(EXAMPLES)
     IF(FFMPEG_FOUND)
-        ADD_EXECUTABLE(alstream examples/alhelpers.c examples/alffmpeg.c examples/alstream.c)
+        ADD_EXECUTABLE(alstream examples/common/alhelpers.c
+                                examples/common/alffmpeg.c
+                                examples/alstream.c)
         TARGET_LINK_LIBRARIES(alstream ${FFMPEG_LIBRARIES} ${LIBNAME})
         SET_TARGET_PROPERTIES(alstream PROPERTIES COMPILE_FLAGS "${FFMPEG_CFLAGS}")
         INSTALL(TARGETS alstream

examples/alstream.c

@@ -34,8 +34,8 @@
 #include "AL/alc.h"
 #include "AL/alext.h"
 
-#include "alhelpers.h"
-#include "alffmpeg.h"
+#include "common/alhelpers.h"
+#include "common/alffmpeg.h"
 
 
 LPALBUFFERSAMPLESSOFT palBufferSamplesSOFT = wrap_BufferSamples;