simplified mutex locking idiom by introducing Mutex class (wrapper around SDL_mutex)

 * can be instantiated
 * can derive from class Mutex to inherit the lock()/unlock() methods

also fixed LayerList destructor

1 files changed, 0 insertions, 1 deletions

diff --git a/src/recorder.cpp b/src/recorder.cpp
index 6859f1b..0bd7b23 100644
--- a/src/recorder.cpp
+++ b/src/recorder.cpp
@@ -126,5 +126,4 @@ Recorder::~Recorder()
 	osc_server.del_method("",  "/recorder/stop");
 
 	SDL_FFMPEGFREE_SAFE(file);
-	SDL_DestroyMutex(mutex);
 }