diff --git a/common/include/common/option.h b/common/include/common/option.h
index 4b9b780c..1ebe12be 100644
--- a/common/include/common/option.h
+++ b/common/include/common/option.h
@@ -51,6 +51,7 @@ struct Option
   char * description;
   const char shortopt;
   bool preset;
+  void * opaque;
 
   enum OptionType type;
   union
@@ -67,6 +68,7 @@ struct Option
   bool         (*validator)(struct Option * opt, const char ** error);
   char       * (*toString )(struct Option * opt);
   StringList   (*getValues)(struct Option * opt);
+  void         (*cleanup  )(struct Option * opt);
 
   void    (*printHelp)(void);
 
diff --git a/common/src/option.c b/common/src/option.c
index c9d4df7f..3f130005 100644
--- a/common/src/option.c
+++ b/common/src/option.c
@@ -280,6 +280,9 @@ void option_free(void)
   for(int i = 0; i < state.oCount; ++i)
   {
     struct Option * o = state.options[i];
+    if (o->cleanup)
+      o->cleanup(o);
+
     if (o->type == OPTION_TYPE_STRING && o->value.x_string)
       free(o->value.x_string);
     free(o);
diff --git a/host/include/downsample_parser.h b/host/include/downsample_parser.h
index c25b02e1..1987faf3 100644
--- a/host/include/downsample_parser.h
+++ b/host/include/downsample_parser.h
@@ -24,6 +24,7 @@
 
 typedef struct
 {
+  const char * module;
   unsigned int id;
   bool         greater;
   unsigned int x;
@@ -33,18 +34,19 @@ typedef struct
 }
 DownsampleRule;
 
-extern Vector downsampleRules;
-
 bool downsampleParser(struct Option * opt, const char * str);
+void downsampleCleanup(struct Option * opt);
 
-DownsampleRule * downsampleRule_match(int x, int y);
+DownsampleRule * downsampleRule_match(Vector * rules, int x, int y);
 
-#define DOWNSAMPLE_PARSER(moduleName) \
+#define DOWNSAMPLE_PARSER(moduleName, vector) \
 { \
   .module         = moduleName, \
   .name           = "downsample", \
   .description    = "Downsample rules, format: [>](width)x(height):(toWidth)x(toHeight)", \
   .type           = OPTION_TYPE_STRING, \
   .value.x_string = NULL, \
-  .parser         = downsampleParser \
+  .parser         = downsampleParser, \
+  .cleanup        = downsampleCleanup, \
+  .opaque         = (void*)(vector) \
 }
diff --git a/host/platform/Windows/capture/DXGI/src/pp/downsample.c b/host/platform/Windows/capture/DXGI/src/pp/downsample.c
index ba7e56e2..739954c7 100644
--- a/host/platform/Windows/capture/DXGI/src/pp/downsample.c
+++ b/host/platform/Windows/capture/DXGI/src/pp/downsample.c
@@ -50,12 +50,13 @@ typedef struct
 }
 DownsampleInst;
 
+static Vector downsampleRules = {0};
 
 static void downsample_earlyInit(void)
 {
   struct Option options[] =
   {
-    DOWNSAMPLE_PARSER("dxgi"),
+    DOWNSAMPLE_PARSER("dxgi", &downsampleRules),
     {0}
   };
 
@@ -99,7 +100,9 @@ static bool downsample_configure(void * opaque,
 
   if (!this.pshader)
   {
-    DownsampleRule * rule = downsampleRule_match(*width, *height);
+    DownsampleRule * rule = downsampleRule_match(&downsampleRules,
+      *width, *height);
+
     if (!rule || (rule->targetX == *width && rule->targetY == *height))
     {
       this.disabled = true;
diff --git a/host/platform/Windows/capture/NVFBC/src/nvfbc.c b/host/platform/Windows/capture/NVFBC/src/nvfbc.c
index 4f68d374..83b6c9f6 100644
--- a/host/platform/Windows/capture/NVFBC/src/nvfbc.c
+++ b/host/platform/Windows/capture/NVFBC/src/nvfbc.c
@@ -136,11 +136,13 @@ static const char * nvfbc_getName(void)
   return "NVFBC";
 };
 
+static Vector downsampleRules = {0};
+
 static void nvfbc_initOptions(void)
 {
   struct Option options[] =
   {
-    DOWNSAMPLE_PARSER("nvfbc"),
+    DOWNSAMPLE_PARSER("nvfbc", &downsampleRules),
     {
       .module         = "nvfbc",
       .name           = "decoupleCursor",
@@ -202,12 +204,14 @@ static bool nvfbc_create(
 
 static void updateScale(void)
 {
-  DownsampleRule * rule = downsampleRule_match(this->width, this->height);
+  DownsampleRule * rule = downsampleRule_match(&downsampleRules,
+    this->width, this->height);
   if (rule)
   {
     this->scale        = true;
     this->targetWidth  = rule->targetX;
     this->targetHeight = rule->targetY;
+    DEBUG_INFO("Downsampling to %dx%d", this->targetWidth, this->targetHeight);
     return;
   }
 
diff --git a/host/src/downsample_parser.c b/host/src/downsample_parser.c
index d93047cd..f649bcbe 100644
--- a/host/src/downsample_parser.c
+++ b/host/src/downsample_parser.c
@@ -32,10 +32,11 @@ bool downsampleParser(struct Option * opt, const char * str)
 
   opt->value.x_string = strdup(str);
 
-  if (downsampleRules.data)
-    vector_destroy(&downsampleRules);
+  Vector * downsampleRules = (Vector *)opt->opaque;
+  if (downsampleRules->data)
+    vector_destroy(downsampleRules);
 
-  if (!vector_create(&downsampleRules, sizeof(DownsampleRule), 10))
+  if (!vector_create(downsampleRules, sizeof(DownsampleRule), 10))
   {
     DEBUG_ERROR("Failed to allocate ram");
     return false;
@@ -53,6 +54,7 @@ bool downsampleParser(struct Option * opt, const char * str)
       ++token;
     }
 
+    rule.module = opt->module;
     if (sscanf(token, "%ux%u:%ux%u",
       &rule.x,
       &rule.y,
@@ -66,7 +68,9 @@ bool downsampleParser(struct Option * opt, const char * str)
     rule.id = count++;
 
     DEBUG_INFO(
-      "Rule %u: %ux%u IF X %s %4u %s Y %s %4u",
+      "%s:%s rule %u: %ux%u IF X %s %4u %s Y %s %4u",
+      opt->module,
+      opt->name,
       rule.id,
       rule.targetX,
       rule.targetY,
@@ -76,7 +80,7 @@ bool downsampleParser(struct Option * opt, const char * str)
       rule.greater ? "> "  : "==",
       rule.y
     );
-    vector_push(&downsampleRules, &rule);
+    vector_push(downsampleRules, &rule);
 
     token = strtok(NULL, ",");
   }
@@ -85,14 +89,20 @@ bool downsampleParser(struct Option * opt, const char * str)
   return true;
 }
 
-DownsampleRule * downsampleRule_match(int x, int y)
+void downsampleCleanup(struct Option * opt)
+{
+  Vector * downsampleRules = (Vector *)opt->opaque;
+  if (downsampleRules->data)
+    vector_destroy(downsampleRules);
+}
+
+DownsampleRule * downsampleRule_match(Vector * rules, int x, int y)
 {
   DownsampleRule * rule, * match = NULL;
-  vector_forEachRef(rule, &downsampleRules)
+  vector_forEachRef(rule, rules)
   {
-    if (
-      ( rule->greater && (x  > rule->x || y  > rule->y)) ||
-      (!rule->greater && (x == rule->x && y == rule->y)))
+    if (( rule->greater && (x  > rule->x || y  > rule->y)) ||
+        (!rule->greater && (x == rule->x && y == rule->y)))
     {
       match = rule;
     }