diff --git a/src/CommonMacros.h b/src/CommonMacros.h
new file mode 100644
index 0000000..a004201
--- /dev/null
+++ b/src/CommonMacros.h
@@ -0,0 +1,6 @@
+#ifndef __COMMON_M__
+#define __COMMON_M__
+
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(*arr))
+
+#endif // __COMMON_M__
diff --git a/src/MVAnalyse.c b/src/MVAnalyse.c
index ef6c14e..f3986c5 100644
--- a/src/MVAnalyse.c
+++ b/src/MVAnalyse.c
@@ -11,6 +11,7 @@
 #include "DCTFFTW.h"
 #include "GroupOfPlanes.h"
 #include "MVAnalysisData.h"
+#include "CommonMacros.h"
 
 
 typedef struct MVAnalyseData {
@@ -630,7 +631,7 @@ static void VS_CC mvanalyseCreate(const VSMap *in, VSMap *out, void *userData, V
         {data->node, rpGeneral} //super
     };
 
-    vsapi->createVideoFilter(out, "Analyse", data->vi, mvanalyseGetFrame, mvanalyseFree, fmParallel, deps, 1, data, core);
+    vsapi->createVideoFilter(out, "Analyse", data->vi, mvanalyseGetFrame, mvanalyseFree, fmParallel, deps, ARRAY_SIZE(deps), data, core);
 }
 
 
diff --git a/src/MVBlockFPS.c b/src/MVBlockFPS.c
index dd56c29..c8ccf56 100644
--- a/src/MVBlockFPS.c
+++ b/src/MVBlockFPS.c
@@ -32,6 +32,8 @@
 #include "MVAnalysisData.h"
 #include "Overlap.h"
 #include "SimpleResize.h"
+#include "CommonMacros.h"
+
 
 
 typedef struct MVBlockFPSData {
@@ -982,7 +984,7 @@ static void VS_CC mvblockfpsCreate(const VSMap *in, VSMap *out, void *userData,
         {data->mvbw, rpGeneral},
         {data->mvfw, rpGeneral},
     };
-    vsapi->createVideoFilter(out, "BlockFPS", &data->vi, mvblockfpsGetFrame, mvblockfpsFree, fmParallel, deps, 4, data, core);
+    vsapi->createVideoFilter(out, "BlockFPS", &data->vi, mvblockfpsGetFrame, mvblockfpsFree, fmParallel, deps, ARRAY_SIZE(deps), data, core);
 
     // AssumeFPS sets the _DurationNum and _DurationDen properties.
     VSNode *node = vsapi->mapGetNode(out, "clip", 0, NULL);
diff --git a/src/MVCompensate.c b/src/MVCompensate.c
index 33088b1..3caf755 100644
--- a/src/MVCompensate.c
+++ b/src/MVCompensate.c
@@ -27,6 +27,8 @@
 #include "Overlap.h"
 #include "MaskFun.h"
 #include "MVAnalysisData.h"
+#include "CommonMacros.h"
+
 
 
 typedef struct MVCompensateData {
@@ -569,7 +571,7 @@ static void VS_CC mvcompensateCreate(const VSMap *in, VSMap *out, void *userData
         {data->vectors, rpGeneral},
     };
 
-    vsapi->createVideoFilter(out, "Compensate", data->vi,  mvcompensateGetFrame, mvcompensateFree, fmParallel, deps,  3, data, core);
+    vsapi->createVideoFilter(out, "Compensate", data->vi,  mvcompensateGetFrame, mvcompensateFree, fmParallel, deps,  ARRAY_SIZE(deps), data, core);
 }
 
 
diff --git a/src/MVDegrains.cpp b/src/MVDegrains.cpp
index 6c6ef26..57be230 100644
--- a/src/MVDegrains.cpp
+++ b/src/MVDegrains.cpp
@@ -32,6 +32,8 @@
 #include "MVDegrains.h"
 #include "MVFrame.h"
 #include "Overlap.h"
+#include "CommonMacros.h"
+
 
 struct MVDegrainData {
     VSNode *node;
diff --git a/src/MVDepan.cpp b/src/MVDepan.cpp
index 3a46ec6..f419c4f 100644
--- a/src/MVDepan.cpp
+++ b/src/MVDepan.cpp
@@ -9,6 +9,8 @@
 
 #include "Fakery.h"
 #include "MVAnalysisData.h"
+#include "CommonMacros.h"
+
 
 
 #define prop_DepanAnalyse_info "DepanAnalyse_info"
@@ -597,7 +599,7 @@ static void VS_CC depanAnalyseCreate(const VSMap *in, VSMap *out, void *userData
         {data->mask, rpStrictSpatial},
     };
 
-    vsapi->createVideoFilter(out, "DepanAnalyse", data->vi, depanAnalyseGetFrame, depanAnalyseFree, fmParallel, deps, 1, data, core);
+    vsapi->createVideoFilter(out, "DepanAnalyse", data->vi, depanAnalyseGetFrame, depanAnalyseFree, fmParallel, deps, ARRAY_SIZE(deps), data, core);
 
     if (vsapi->mapGetError(out)) {
         depanAnalyseFree(data, core, vsapi);
@@ -1454,7 +1456,7 @@ static void VS_CC depanEstimateCreate(const VSMap *in, VSMap *out, void *userDat
         {data1->clip, rpStrictSpatial},
     };
 
-    vsapi->createVideoFilter(out, "DepanEstimateStage1", data1->vi, depanEstimateStage1GetFrame, depanEstimateFree, fmParallel, deps1, 1, data1, core);
+    vsapi->createVideoFilter(out, "DepanEstimateStage1", data1->vi, depanEstimateStage1GetFrame, depanEstimateFree, fmParallel, deps1, ARRAY_SIZE(deps1), data1, core);
 
     if (vsapi->mapGetError(out)) {
         depanEstimateFree(data1, core, vsapi);
@@ -1470,7 +1472,7 @@ static void VS_CC depanEstimateCreate(const VSMap *in, VSMap *out, void *userDat
         {data2->clip, rpGeneral},
     };
 
-    vsapi->createVideoFilter(out, "DepanEstimateStage2", data2->vi, depanEstimateStage2GetFrame, depanEstimateFree, fmParallel, deps2, 1, data2, core);
+    vsapi->createVideoFilter(out, "DepanEstimateStage2", data2->vi, depanEstimateStage2GetFrame, depanEstimateFree, fmParallel, deps2, ARRAY_SIZE(deps2), data2, core);
 
     if (vsapi->mapGetError(out)) {
         depanEstimateFree(data2, core, vsapi);
@@ -1485,7 +1487,7 @@ static void VS_CC depanEstimateCreate(const VSMap *in, VSMap *out, void *userDat
         {data3->clip, rpGeneral},
     };
 
-    vsapi->createVideoFilter(out, "DepanEstimateStage3", data3->vi, depanEstimateStage3GetFrame, depanEstimateFree, fmParallel, deps3, 1, data3, core);
+    vsapi->createVideoFilter(out, "DepanEstimateStage3", data3->vi, depanEstimateStage3GetFrame, depanEstimateFree, fmParallel, deps3, ARRAY_SIZE(deps3), data3, core);
 
     if (vsapi->mapGetError(out)) {
         depanEstimateFree(data3, core, vsapi);
@@ -2863,7 +2865,7 @@ static void VS_CC depanCompensateCreate(const VSMap *in, VSMap *out, void *userD
         {data->data, rpGeneral},
     };
 
-    vsapi->createVideoFilter(out, "DepanCompensate", data->vi, depanCompensateGetFrame, depanCompensateFree, fmParallel, deps, 2, data, core);
+    vsapi->createVideoFilter(out, "DepanCompensate", data->vi, depanCompensateGetFrame, depanCompensateFree, fmParallel, deps, ARRAY_SIZE(deps), data, core);
 
     if (vsapi->mapGetError(out)) {
         depanCompensateFree(data, core, vsapi);
@@ -4190,7 +4192,7 @@ static void VS_CC depanStabiliseCreate(const VSMap *in, VSMap *out, void *userDa
         {d->data, rpGeneral},
     };
 
-    vsapi->createVideoFilter(out, "DepanStabilise", d->vi, getframe_functions[d->method], depanStabiliseFree, fmParallel, deps, 2, d, core);
+    vsapi->createVideoFilter(out, "DepanStabilise", d->vi, getframe_functions[d->method], depanStabiliseFree, fmParallel, deps, ARRAY_SIZE(deps), d, core);
 
     if (vsapi->mapGetError(out)) {
         depanStabiliseFree(d, core, vsapi);
diff --git a/src/MVFinest.c b/src/MVFinest.c
index 4edd3e9..c4c6f79 100644
--- a/src/MVFinest.c
+++ b/src/MVFinest.c
@@ -22,6 +22,8 @@
 #include <VSHelper4.h>
 
 #include "MaskFun.h"
+#include "CommonMacros.h"
+
 
 
 typedef struct MVFinestData {
@@ -204,7 +206,7 @@ static void VS_CC mvfinestCreate(const VSMap *in, VSMap *out, void *userData, VS
         {data->super, rpStrictSpatial}, 
     };
 
-    vsapi->createVideoFilter(out, "Finest", &data->vi, mvfinestGetFrame, mvfinestFree, fmParallel, deps, 1, data, core);
+    vsapi->createVideoFilter(out, "Finest", &data->vi, mvfinestGetFrame, mvfinestFree, fmParallel, deps, ARRAY_SIZE(deps), data, core);
 }
 
 
diff --git a/src/MVFlow.cpp b/src/MVFlow.cpp
index 79d1742..962e5cf 100644
--- a/src/MVFlow.cpp
+++ b/src/MVFlow.cpp
@@ -31,6 +31,8 @@
 #include "MaskFun.h"
 #include "MVAnalysisData.h"
 #include "SimpleResize.h"
+#include "CommonMacros.h"
+
 
 
 enum FlowModes {
@@ -587,7 +589,7 @@ static void VS_CC mvflowCreate(const VSMap *in, VSMap *out, void *userData, VSCo
         {data->vectors, rpStrictSpatial}, 
     };
 
-    vsapi->createVideoFilter(out, "Flow", data->vi, mvflowGetFrame, mvflowFree, fmParallel, deps, 3, data, core);
+    vsapi->createVideoFilter(out, "Flow", data->vi, mvflowGetFrame, mvflowFree, fmParallel, deps, ARRAY_SIZE(deps), data, core);
 }
 
 
diff --git a/src/MVFlowBlur.c b/src/MVFlowBlur.c
index 4cb92cd..41f6103 100644
--- a/src/MVFlowBlur.c
+++ b/src/MVFlowBlur.c
@@ -31,6 +31,8 @@
 #include "MaskFun.h"
 #include "MVAnalysisData.h"
 #include "SimpleResize.h"
+#include "CommonMacros.h"
+
 
 
 typedef struct MVFlowBlurData {
@@ -545,7 +547,7 @@ static void VS_CC mvflowblurCreate(const VSMap *in, VSMap *out, void *userData,
         {data->mvfw, rpGeneral}, 
     };
 
-    vsapi->createVideoFilter(out, "FlowBlur", data->vi, mvflowblurGetFrame, mvflowblurFree, fmParallel, deps, 4, data, core);
+    vsapi->createVideoFilter(out, "FlowBlur", data->vi, mvflowblurGetFrame, mvflowblurFree, fmParallel, deps, ARRAY_SIZE(deps), data, core);
 }
 
 
diff --git a/src/MVFlowFPS.c b/src/MVFlowFPS.c
index 2fa6ac4..0e40252 100644
--- a/src/MVFlowFPS.c
+++ b/src/MVFlowFPS.c
@@ -32,6 +32,8 @@
 #include "SimpleResize.h"
 
 #include "MVFlowFPSHelper.h"
+#include "CommonMacros.h"
+
 
 
 typedef struct MVFlowFPSData {
@@ -858,11 +860,11 @@ static void VS_CC mvflowfpsCreate(const VSMap *in, VSMap *out, void *userData, V
         {hf->vectors, rpStrictSpatial}
     };
 
-    vsapi->createVideoFilter(out, "FlowFPSHelper", hb->vi, mvflowfpshelperGetFrame, mvflowfpshelperFree, fmParallel, hb_deps, 1, hb, core);
+    vsapi->createVideoFilter(out, "FlowFPSHelper", hb->vi, mvflowfpshelperGetFrame, mvflowfpshelperFree, fmParallel, hb_deps, ARRAY_SIZE(hb_deps), hb, core);
     d.mvbw = vsapi->mapGetNode(out, "clip", 0, NULL);
     vsapi->clearMap(out);
 
-    vsapi->createVideoFilter(out, "FlowFPSHelper", hf->vi, mvflowfpshelperGetFrame, mvflowfpshelperFree, fmParallel, hf_deps, 1, hf, core);
+    vsapi->createVideoFilter(out, "FlowFPSHelper", hf->vi, mvflowfpshelperGetFrame, mvflowfpshelperFree, fmParallel, hf_deps, ARRAY_SIZE(hf_deps), hf, core);
     d.mvfw = vsapi->mapGetNode(out, "clip", 0, NULL);
     vsapi->clearMap(out);
 
@@ -876,7 +878,7 @@ static void VS_CC mvflowfpsCreate(const VSMap *in, VSMap *out, void *userData, V
         {data->mvbw, rpGeneral},
         {data->mvfw, rpGeneral},
     };
-    vsapi->createVideoFilter(out, "FlowFPS", &data->vi, mvflowfpsGetFrame, mvflowfpsFree, fmParallel, deps, 4, data, core);
+    vsapi->createVideoFilter(out, "FlowFPS", &data->vi, mvflowfpsGetFrame, mvflowfpsFree, fmParallel, deps, ARRAY_SIZE(deps), data, core);
 
     VSPlugin *std_plugin = vsapi->getPluginByID("com.vapoursynth.std", core);
 
diff --git a/src/MVFlowInter.c b/src/MVFlowInter.c
index de569f6..ec17c07 100644
--- a/src/MVFlowInter.c
+++ b/src/MVFlowInter.c
@@ -30,6 +30,8 @@
 #include "MaskFun.h"
 #include "MVAnalysisData.h"
 #include "SimpleResize.h"
+#include "CommonMacros.h"
+
 
 
 typedef struct MVFlowInterData {
@@ -690,7 +692,7 @@ static void VS_CC mvflowinterCreate(const VSMap *in, VSMap *out, void *userData,
         {data->mvfw, rpGeneral}, 
     };
 
-    vsapi->createVideoFilter(out, "FlowInter", data->vi, mvflowinterGetFrame, mvflowinterFree, fmParallel, deps, 4, data, core);
+    vsapi->createVideoFilter(out, "FlowInter", data->vi, mvflowinterGetFrame, mvflowinterFree, fmParallel, deps, ARRAY_SIZE(deps), data, core);
 }
 
 
diff --git a/src/MVMask.c b/src/MVMask.c
index 418272f..75a75f5 100644
--- a/src/MVMask.c
+++ b/src/MVMask.c
@@ -27,6 +27,8 @@
 #include "MaskFun.h"
 #include "MVAnalysisData.h"
 #include "SimpleResize.h"
+#include "CommonMacros.h"
+
 
 
 typedef struct MVMaskData {
@@ -340,7 +342,7 @@ static void VS_CC mvmaskCreate(const VSMap *in, VSMap *out, void *userData, VSCo
         {data->vectors, rpStrictSpatial},
     };
 
-    vsapi->createVideoFilter(out, "Mask", &data->vi, mvmaskGetFrame, mvmaskFree, fmParallel, deps, 2, data, core);
+    vsapi->createVideoFilter(out, "Mask", &data->vi, mvmaskGetFrame, mvmaskFree, fmParallel, deps, ARRAY_SIZE(deps), data, core);
 }
 
 
diff --git a/src/MVRecalculate.c b/src/MVRecalculate.c
index 3d5f71f..4a3faba 100644
--- a/src/MVRecalculate.c
+++ b/src/MVRecalculate.c
@@ -11,6 +11,8 @@
 #include "Fakery.h"
 #include "GroupOfPlanes.h"
 #include "MVAnalysisData.h"
+#include "CommonMacros.h"
+
 
 
 typedef struct MVRecalculateData {
@@ -547,7 +549,7 @@ static void VS_CC mvrecalculateCreate(const VSMap *in, VSMap *out, void *userDat
         {data->vectors, rpStrictSpatial},
     };
 
-    vsapi->createVideoFilter(out, "Recalculate", data->vi, mvrecalculateGetFrame, mvrecalculateFree, fmParallel, deps, 2, data, core);
+    vsapi->createVideoFilter(out, "Recalculate", data->vi, mvrecalculateGetFrame, mvrecalculateFree, fmParallel, deps, ARRAY_SIZE(deps), data, core);
 }
 
 
diff --git a/src/MVSCDetection.c b/src/MVSCDetection.c
index aee87a4..7326485 100644
--- a/src/MVSCDetection.c
+++ b/src/MVSCDetection.c
@@ -22,6 +22,8 @@
 
 #include "Fakery.h"
 #include "MVAnalysisData.h"
+#include "CommonMacros.h"
+
 
 
 
@@ -130,7 +132,7 @@ static void VS_CC mvscdetectionCreate(const VSMap *in, VSMap *out, void *userDat
         {data->node, rpStrictSpatial},
         {data->vectors, rpStrictSpatial},
     };
-    vsapi->createVideoFilter(out, "SCDetection", data->vi, mvscdetectionGetFrame, mvscdetectionFree, fmParallel, deps, 2, data, core);
+    vsapi->createVideoFilter(out, "SCDetection", data->vi, mvscdetectionGetFrame, mvscdetectionFree, fmParallel, deps, ARRAY_SIZE(deps), data, core);
 }
 
 
diff --git a/src/MVSuper.c b/src/MVSuper.c
index cd4d195..9a80549 100644
--- a/src/MVSuper.c
+++ b/src/MVSuper.c
@@ -6,6 +6,8 @@
 #include <VSHelper4.h>
 
 #include "MVFrame.h"
+#include "CommonMacros.h"
+
 
 
 typedef struct MVSuperData {
@@ -269,7 +271,7 @@ static void VS_CC mvsuperCreate(const VSMap *in, VSMap *out, void *userData, VSC
         {data->node, rpStrictSpatial}
     };
 
-    vsapi->createVideoFilter(out, "Super", &data->vi, mvsuperGetFrame, mvsuperFree, fmParallel, deps, 1, data, core);
+    vsapi->createVideoFilter(out, "Super", &data->vi, mvsuperGetFrame, mvsuperFree, fmParallel, deps, ARRAY_SIZE(deps), data, core);
 }