nodes: fix loop mode regression

app/codec/decoder.cpp

@@ -293,7 +293,7 @@ bool Decoder::RetrieveAudioFromConform(SampleBuffer &sample_buffer, const QVecto
     const qint64 buffer_length_in_bytes = sample_buffer.sample_count() * input_params.bytes_per_sample_per_channel();
 
     while (write_index < buffer_length_in_bytes) {
-      if (loop_mode == kLoopModeLoop) {
+      if (loop_mode == LoopMode::kLoopModeLoop) {
         while (read_index >= input.size()) {
           read_index -= input.size();
         }

app/codec/decoder.h

@@ -31,12 +31,11 @@ extern "C" {
 #include <QWaitCondition>
 #include <stdint.h>
 
-#include "codec/frame.h"
 #include "codec/samplebuffer.h"
 #include "common/rational.h"
 #include "node/block/block.h"
 #include "node/project/footage/footagedescription.h"
-#include "task/task.h"
+#include "render/cancelatom.h"
 
 namespace olive {
 
@@ -71,12 +70,6 @@ public:
     kIndexUnavailable
   };
 
-  enum LoopMode {
-    kLoopModeOff,
-    kLoopModeLoop,
-    kLoopModeClamp
-  };
-
   Decoder();
 
   /**