diff --git a/configs/config.yaml b/configs/config.yaml
index ef51aac5..c7bf1fe7 100644
--- a/configs/config.yaml
+++ b/configs/config.yaml
@@ -152,7 +152,7 @@ encoder:
     frequency: 48000
   video:
     # h264, vpx (VP8)
-    codec: vpx
+    codec: h264
     # see: https://trac.ffmpeg.org/wiki/Encode/H.264
     h264:
       # Constant Rate Factor (CRF) 0-51 (default: 23)
diff --git a/pkg/encoder/pipe.go b/pkg/encoder/pipe.go
index 1e815e4f..aab993e6 100644
--- a/pkg/encoder/pipe.go
+++ b/pkg/encoder/pipe.go
@@ -1,6 +1,10 @@
 package encoder
 
-import "log"
+import (
+	"log"
+
+	"github.com/giongto35/cloud-game/v2/pkg/encoder/yuv"
+)
 
 type VideoPipe struct {
 	Input  chan InFrame
@@ -40,9 +44,9 @@ func (vp *VideoPipe) Start() {
 		}
 	}()
 
-	yuv := NewYuvBuffer(vp.w, vp.h)
+	yuvProc := yuv.NewYuvImgProcessor(vp.w, vp.h)
 	for img := range vp.Input {
-		frame := vp.encoder.Encode(yuv.FromRGBA(img.Image).data)
+		frame := vp.encoder.Encode(yuvProc.Process(img.Image).Get())
 		if len(frame) > 0 {
 			vp.Output <- OutFrame{Data: frame, Timestamp: img.Timestamp}
 		}
diff --git a/pkg/encoder/yuv.go b/pkg/encoder/yuv.go
deleted file mode 100644
index 82e4c59d..00000000
--- a/pkg/encoder/yuv.go
+++ /dev/null
@@ -1,65 +0,0 @@
-package encoder
-
-import (
-	"image"
-	"unsafe"
-)
-
-// see: https://stackoverflow.com/questions/9465815/rgb-to-yuv420-algorithm-efficiency
-// credit to https://github.com/poi5305/go-yuv2webRTC/blob/master/webrtc/webrtc.go
-
-/*
-void rgba2yuv(void * destination, void * source, int width, int height, int stride) {
-  const int image_size = width * height;
-  unsigned char * rgba = source;
-  unsigned char * dst_y = destination;
-  unsigned char * dst_u = destination + image_size;
-  unsigned char * dst_v = destination + image_size + image_size / 4;
-
-  int i, x, y;
-  // Y plane
-  for (y = 0; y < height; ++y) {
-    for (x = 0; x < width; ++x) {
-      i = y * (width + stride) + x;
-      * dst_y++ = ((66 * rgba[4 * i] + 129 * rgba[4 * i + 1] + 25 * rgba[4 * i + 2]) >> 8) + 16;
-    }
-  }
-
-  // U plane
-  for (y = 0; y < height; y += 2) {
-    for (x = 0; x < width; x += 2) {
-      i = y * (width + stride) + x;
-      * dst_u++ = ((-38 * rgba[4 * i] + -74 * rgba[4 * i + 1] + 112 * rgba[4 * i + 2]) >> 8) + 128;
-    }
-  }
-
-  // V plane
-  for (y = 0; y < height; y += 2) {
-    for (x = 0; x < width; x += 2) {
-      i = y * (width + stride) + x;
-      * dst_v++ = ((112 * rgba[4 * i] + -94 * rgba[4 * i + 1] + -18 * rgba[4 * i + 2]) >> 8) + 128;
-    }
-  }
-}
-*/
-import "C"
-
-type Yuv struct {
-	data []byte
-	w, h int
-}
-
-func NewYuvBuffer(w, h int) Yuv {
-	size := int(float32(w*h) * 1.5)
-	return Yuv{
-		data: make([]byte, size, size),
-		w:    w,
-		h:    h,
-	}
-}
-
-// FromRGBA converts RGBA colorspace into YUV I420 format inside the internal buffer.
-func (yuv *Yuv) FromRGBA(rgba *image.RGBA) *Yuv {
-	C.rgba2yuv(unsafe.Pointer(&yuv.data[0]), unsafe.Pointer(&rgba.Pix[0]), C.int(yuv.w), C.int(yuv.h), C.int(0))
-	return yuv
-}
diff --git a/pkg/encoder/yuv/options.go b/pkg/encoder/yuv/options.go
new file mode 100644
index 00000000..1f53ecfa
--- /dev/null
+++ b/pkg/encoder/yuv/options.go
@@ -0,0 +1,42 @@
+package yuv
+
+type Options struct {
+	ChromaP  ChromaPos
+	Threaded bool
+	Threads  int
+}
+
+func (o *Options) override(options ...Option) {
+	for _, opt := range options {
+		opt(o)
+	}
+}
+
+type Option func(*Options)
+
+func Threaded(t bool) Option {
+	return func(opts *Options) {
+		opts.Threaded = t
+	}
+}
+
+func Threads(t int) Option {
+	return func(opts *Options) {
+		opts.Threads = t
+	}
+}
+
+func ChromaP(cp ChromaPos) Option {
+	return func(opts *Options) {
+		opts.ChromaP = cp
+	}
+}
+
+// WithOptions used for config files.
+func WithOptions(arg Options) Option {
+	return func(args *Options) {
+		args.ChromaP = arg.ChromaP
+		args.Threaded = arg.Threaded
+		args.Threads = arg.Threads
+	}
+}
diff --git a/pkg/encoder/yuv/yuv.c b/pkg/encoder/yuv/yuv.c
new file mode 100644
index 00000000..d6ccb2ce
--- /dev/null
+++ b/pkg/encoder/yuv/yuv.c
@@ -0,0 +1,143 @@
+#include "yuv.h"
+
+// based on: https://stackoverflow.com/questions/9465815/rgb-to-yuv420-algorithm-efficiency
+
+// Converts RGBA image to YUV (I420) with BT.601 studio color range.
+void rgbaToYuv(void *destination, void *source, int width, int height, chromaPos chroma) {
+    const int image_size = width * height;
+    unsigned char *rgba = source;
+    unsigned char *dst_y = destination;
+    unsigned char *dst_u = destination + image_size;
+    unsigned char *dst_v = destination + image_size + image_size / 4;
+
+    int r1, g1, b1, stride;
+    // Y plane
+    for (int y = 0; y < height; ++y) {
+        stride = 4 * y * width;
+        for (int x = 0; x < width; ++x) {
+            r1 = 4 * x + stride;
+            g1 = r1 + 1;
+            b1 = g1 + 1;
+            *dst_y++ = ((66 * rgba[r1] + 129 * rgba[g1] + 25 * rgba[b1]) >> 8) + 16;
+        }
+    }
+
+    // U+V plane
+    if (chroma == TOP_LEFT) {
+        for (int y = 0; y < height; y += 2) {
+            stride = 4 * y * width;
+            for (int x = 0; x < width; x += 2) {
+                r1 = 4 * x + stride;
+                g1 = r1 + 1;
+                b1 = g1 + 1;
+                *dst_u++ = ((-38 * rgba[r1] + -74 * rgba[g1] + 112 * rgba[b1]) >> 8) + 128;
+                *dst_v++ = ((112 * rgba[r1] + -94 * rgba[g1] + -18 * rgba[b1]) >> 8) + 128;
+            }
+        }
+    } else if (chroma == BETWEEN_FOUR) {
+        int r2, g2, b2, r3, g3, b3, r4, g4, b4;
+
+        for (int y = 0; y < height; y += 2) {
+            stride = 4 * y * width;
+            for (int x = 0; x < width; x += 2) {
+                // (1 2) x x
+                //  x x  x x
+                r1 = 4 * x + stride;
+                g1 = r1 + 1;
+                b1 = g1 + 1;
+                r2 = r1 + 4;
+                g2 = r2 + 1;
+                b2 = g2 + 1;
+                //  x x  x x
+                // (3 4) x x
+                r3 = r1 + 4 * width;
+
+                g3 = r3 + 1;
+                b3 = g3 + 1;
+                r4 = r3 + 4;
+                g4 = r4 + 1;
+                b4 = g4 + 1;
+                *dst_u++ = (((-38 * rgba[r1] + -74 * rgba[g1] + 112 * rgba[b1]) >> 8) +
+                            ((-38 * rgba[r2] + -74 * rgba[g2] + 112 * rgba[b2]) >> 8) +
+                            ((-38 * rgba[r3] + -74 * rgba[g3] + 112 * rgba[b3]) >> 8) +
+                            ((-38 * rgba[r4] + -74 * rgba[g4] + 112 * rgba[b4]) >> 8) + 512) >> 2;
+                *dst_v++ = (((112 * rgba[r1] + -94 * rgba[g1] + -18 * rgba[b1]) >> 8) +
+                            ((112 * rgba[r2] + -94 * rgba[g2] + -18 * rgba[b2]) >> 8) +
+                            ((112 * rgba[r3] + -94 * rgba[g3] + -18 * rgba[b3]) >> 8) +
+                            ((112 * rgba[r4] + -94 * rgba[g4] + -18 * rgba[b4]) >> 8) + 512) >> 2;
+            }
+        }
+    }
+}
+
+void chroma(void *destination, void *source, int pos, int deu, int dev, int width, int height, chromaPos chroma) {
+    unsigned char *rgba = source + 4 * pos;
+    unsigned char *dst_u = destination + deu + pos / 4;
+    unsigned char *dst_v = destination + dev + pos / 4;
+
+    int r1, g1, b1, stride;
+
+    // U+V plane
+    if (chroma == TOP_LEFT) {
+        for (int y = 0; y < height; y += 2) {
+            stride = 4 * y * width;
+            for (int x = 0; x < width; x += 2) {
+                r1 = 4 * x + stride;
+                g1 = r1 + 1;
+                b1 = g1 + 1;
+                *dst_u++ = ((-38 * rgba[r1] + -74 * rgba[g1] + 112 * rgba[b1]) >> 8) + 128;
+                *dst_v++ = ((112 * rgba[r1] + -94 * rgba[g1] + -18 * rgba[b1]) >> 8) + 128;
+            }
+        }
+    } else if (chroma == BETWEEN_FOUR) {
+        int r2, g2, b2, r3, g3, b3, r4, g4, b4;
+
+        for (int y = 0; y < height; y += 2) {
+            stride = 4 * y * width;
+            for (int x = 0; x < width; x += 2) {
+                // (1 2) x x
+                //  x x  x x
+                r1 = 4 * x + stride;
+                g1 = r1 + 1;
+                b1 = g1 + 1;
+                r2 = r1 + 4;
+                g2 = r2 + 1;
+                b2 = g2 + 1;
+                //  x x  x x
+                // (3 4) x x
+                r3 = r1 + 4 * width;
+                g3 = r3 + 1;
+                b3 = g3 + 1;
+                r4 = r3 + 4;
+                g4 = r4 + 1;
+                b4 = g4 + 1;
+                *dst_u++ = (((-38 * rgba[r1] + -74 * rgba[g1] + 112 * rgba[b1]) >> 8) +
+                            ((-38 * rgba[r2] + -74 * rgba[g2] + 112 * rgba[b2]) >> 8) +
+                            ((-38 * rgba[r3] + -74 * rgba[g3] + 112 * rgba[b3]) >> 8) +
+                            ((-38 * rgba[r4] + -74 * rgba[g4] + 112 * rgba[b4]) >> 8) + 512) >> 2;
+                *dst_v++ = (((112 * rgba[r1] + -94 * rgba[g1] + -18 * rgba[b1]) >> 8) +
+                            ((112 * rgba[r2] + -94 * rgba[g2] + -18 * rgba[b2]) >> 8) +
+                            ((112 * rgba[r3] + -94 * rgba[g3] + -18 * rgba[b3]) >> 8) +
+                            ((112 * rgba[r4] + -94 * rgba[g4] + -18 * rgba[b4]) >> 8) + 512) >> 2;
+            }
+        }
+    }
+}
+
+void luma(void *destination, void *source, int pos, int width, int height) {
+    unsigned char *rgba = source + 4 * pos;
+    unsigned char *dst_y = destination + pos;
+
+    int x, y, r1, g1, b1, stride;
+
+    // Y plane
+    for (y = 0; y < height; ++y) {
+        stride = 4 * y * width;
+        for (x = 0; x < width; ++x) {
+            r1 = 4 * x + stride;
+            g1 = r1 + 1;
+            b1 = g1 + 1;
+            *dst_y++ = 16 + ((66 * rgba[r1] + 129 * rgba[g1] + 25 * rgba[b1]) >> 8);
+        }
+    }
+}
diff --git a/pkg/encoder/yuv/yuv.go b/pkg/encoder/yuv/yuv.go
new file mode 100644
index 00000000..c7aa7c07
--- /dev/null
+++ b/pkg/encoder/yuv/yuv.go
@@ -0,0 +1,138 @@
+package yuv
+
+import (
+	"image"
+	"runtime"
+	"sync"
+	"unsafe"
+)
+
+/*
+#cgo CFLAGS: -Wall -O3
+#include "yuv.h"
+*/
+import "C"
+
+type ImgProcessor interface {
+	Process(rgba *image.RGBA) ImgProcessor
+	Get() []byte
+}
+
+type processor struct {
+	Data []byte
+	w, h int
+	pos  ChromaPos
+
+	// cache
+	dst    unsafe.Pointer
+	ww     C.int
+	chroma C.chromaPos
+}
+
+type threadedProcessor struct {
+	*processor
+
+	// threading
+	threads int
+	chunk   int
+
+	// cache
+	chromaU C.int
+	chromaV C.int
+}
+
+type ChromaPos uint8
+
+const (
+	TopLeft ChromaPos = iota
+	BetweenFour
+)
+
+// NewYuvImgProcessor creates new YUV image converter from RGBA.
+func NewYuvImgProcessor(w, h int, options ...Option) ImgProcessor {
+	opts := &Options{
+		ChromaP:  BetweenFour,
+		Threaded: true,
+		Threads:  runtime.NumCPU(),
+	}
+	opts.override(options...)
+
+	bufSize := int(float32(w*h) * 1.5)
+	buf := make([]byte, bufSize, bufSize)
+
+	processor := processor{
+		Data:   buf,
+		chroma: C.chromaPos(opts.ChromaP),
+		dst:    unsafe.Pointer(&buf[0]),
+		h:      h,
+		pos:    opts.ChromaP,
+		w:      w,
+		ww:     C.int(w),
+	}
+
+	if opts.Threaded {
+		// chunks the image evenly
+		chunk := h / opts.Threads
+		if chunk%2 != 0 {
+			chunk--
+		}
+
+		return &threadedProcessor{
+			chromaU:   C.int(w * h),
+			chromaV:   C.int(w*h + w*h/4),
+			chunk:     chunk,
+			processor: &processor,
+			threads:   opts.Threads,
+		}
+	}
+	return &processor
+}
+
+func (yuv *processor) Get() []byte {
+	return yuv.Data
+}
+
+// Process converts RGBA colorspace into YUV I420 format inside the internal buffer.
+// Non-threaded version.
+func (yuv *processor) Process(rgba *image.RGBA) ImgProcessor {
+	C.rgbaToYuv(yuv.dst, unsafe.Pointer(&rgba.Pix[0]), yuv.ww, C.int(yuv.h), yuv.chroma)
+	return yuv
+}
+
+func (yuv *threadedProcessor) Get() []byte {
+	return yuv.Data
+}
+
+// Process converts RGBA colorspace into YUV I420 format inside the internal buffer.
+// Threaded version.
+//
+// We divide the input image into chunks by the number of available CPUs.
+// Each chunk should contain 2, 4, 6, and etc. rows of the image.
+//
+//        8x4          CPU (2)
+//  x x x x x x x x  | Coroutine 1
+//  x x x x x x x x  | Coroutine 1
+//  x x x x x x x x  | Coroutine 2
+//  x x x x x x x x  | Coroutine 2
+//
+func (yuv *threadedProcessor) Process(rgba *image.RGBA) ImgProcessor {
+	src := unsafe.Pointer(&rgba.Pix[0])
+	wg := sync.WaitGroup{}
+	wg.Add(2 * yuv.threads)
+	for i := 0; i < yuv.threads; i++ {
+		pos, hh := C.int(yuv.w*i*yuv.chunk), C.int(yuv.chunk)
+		// we need to know how many pixels left
+		// if the image can't be divided evenly
+		// between all the threads
+		if i == yuv.threads-1 {
+			hh = C.int(yuv.h - i*yuv.chunk)
+		}
+		go func() { defer wg.Done(); C.luma(yuv.dst, src, pos, yuv.ww, hh) }()
+		go func() {
+			defer wg.Done()
+			C.chroma(yuv.dst, src, pos, yuv.chromaU, yuv.chromaV, yuv.ww, hh, yuv.chroma)
+		}()
+	}
+	wg.Wait()
+	return yuv
+}
diff --git a/pkg/encoder/yuv/yuv.h b/pkg/encoder/yuv/yuv.h
new file mode 100644
index 00000000..931b857e
--- /dev/null
+++ b/pkg/encoder/yuv/yuv.h
@@ -0,0 +1,24 @@
+
+typedef enum {
+    // It will take each TL pixel for chroma values.
+    // XO  X   XO  X
+    // X   X   X   X
+    TOP_LEFT = 0,
+    // It will take an average color from the 2x2 pixel group for chroma values.
+    // X   X   X   X
+    //   O       O
+    // X   X   X   X
+    BETWEEN_FOUR = 1
+} chromaPos;
+
+// Converts RGBA image to YUV (I420) with BT.601 studio color range.
+void rgbaToYuv(void *destination, void *source, int width, int height, chromaPos chroma);
+
+// Converts RGBA image chunk to YUV (I420) chroma with BT.601 studio color range.
+// pos contains a shift value for chunks.
+// deu, dev contains constant shifts for U, V planes in the resulting array.
+// chroma (0, 1) selects chroma estimation algorithm.
+void chroma(void *destination, void *source, int pos, int deu, int dev, int width, int height, chromaPos chroma);
+
+// Converts RGBA image chunk to YUV (I420) luma with BT.601 studio color range.
+void luma(void *destination, void *source, int pos, int width, int height);
diff --git a/pkg/encoder/yuv/yuv_test.go b/pkg/encoder/yuv/yuv_test.go
new file mode 100644
index 00000000..977e3a2b
--- /dev/null
+++ b/pkg/encoder/yuv/yuv_test.go
@@ -0,0 +1,202 @@
+package yuv
+
+import (
+	"image"
+	"image/color"
+	"math/rand"
+	"reflect"
+	"testing"
+	"time"
+)
+
+func TestYuv(t *testing.T) {
+	size1, size2 := 32, 32
+	for i := 1; i < 100; i++ {
+		img := generateImage(size1, size2, randomColor())
+		pc := NewYuvImgProcessor(size1, size2, Threaded(false))
+		pct := NewYuvImgProcessor(size1, size2, Threaded(true))
+
+		pc.Process(img)
+		pct.Process(img)
+
+		if !reflect.DeepEqual(pc.Get(), pct.Get()) {
+			t.Fatalf("couldn't convert %v, \n %v \n %v", img.Pix, pc.Get(), pct.Get())
+		}
+	}
+}
+
+func TestYuvPredefined(t *testing.T) {
+	im := []uint8{101, 0, 106, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 101, 0, 106, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 101, 0, 106, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 101, 0, 106, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 101, 0, 106, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 101, 0, 106, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 255, 18, 226, 78, 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+	should := []byte{
+		52, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 52, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 52, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 52, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 52, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 52, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 52, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 52, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 52, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 52,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 52, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 52, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 52, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 52, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 52, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 52, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 52, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
+		142, 142, 142, 142, 126, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94,
+		126, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 126, 94, 94, 94, 94,
+		94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 126, 94, 94, 94, 94, 94, 94, 94, 94, 94,
+		94, 94, 94, 94, 94, 94, 126, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94,
+		94, 126, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 126, 94, 94, 94,
+		94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 126, 94, 94, 94, 94, 94, 94, 94, 94,
+		94, 94, 94, 94, 94, 94, 94, 110, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94,
+		94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94,
+		94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94,
+		94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94,
+		94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94,
+		94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94,
+		94, 94, 94, 94, 94, 94, 94, 94, 94, 105, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+		47, 47, 47, 47, 105, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 105,
+		47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 105, 47, 47, 47, 47, 47,
+		47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 105, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+		47, 47, 47, 47, 47, 105, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+		105, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 105, 47, 47, 47, 47,
+		47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 76, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+		47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+		47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+		47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+		47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+		47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+		47, 47, 47, 47, 47, 47, 47,
+	}
+
+	pc := NewYuvImgProcessor(32, 32, Threaded(false))
+	pct := NewYuvImgProcessor(32, 32, Threaded(true))
+
+	img := image.NewRGBA(image.Rect(0, 0, 32, 32))
+	img.Pix = im
+
+	pc.Process(img)
+	pct.Process(img)
+
+	if !reflect.DeepEqual(pc.Get(), should) {
+		t.Fatalf("couldn't convert with base %v \n %v", pc.Get(), should)
+	}
+
+	if !reflect.DeepEqual(pct.Get(), should) {
+		for i := 0; i < len(pct.Get()); i++ {
+			if pct.Get()[i] != should[i] {
+				t.Logf("index is: %v", i)
+			}
+		}
+		t.Fatalf("couldn't convert with threaded %v \n %v", pct.Get(), should)
+	}
+}
+
+func generateImage(w, h int, pixelColor color.RGBA) *image.RGBA {
+	img := image.NewRGBA(image.Rect(0, 0, w, h))
+	for x := 0; x < w; x++ {
+		for y := 0; y < h; y++ {
+			img.Set(x, y, randomColor())
+		}
+	}
+	return img
+}
+
+func randomColor() color.RGBA {
+	rnd := rand.New(rand.NewSource(time.Now().Unix()))
+	return color.RGBA{
+		R: uint8(rnd.Intn(255)),
+		G: uint8(rnd.Intn(255)),
+		B: uint8(rnd.Intn(255)),
+		A: 255,
+	}
+}
+
+func BenchmarkTopLeft(b *testing.B) {
+	benchmarkConverter(1920, 1080, 0, true, b)
+}
+
+func BenchmarkBetweenFour(b *testing.B) {
+	benchmarkConverter(1920, 1080, 1, true, b)
+}
+
+func BenchmarkBetweenFourNonThreaded(b *testing.B) {
+	benchmarkConverter(1920, 1080, 1, false, b)
+}
+
+func benchmarkConverter(w, h int, chroma ChromaPos, threaded bool, b *testing.B) {
+	b.StopTimer()
+
+	pc := NewYuvImgProcessor(w, h, ChromaP(chroma), Threaded(threaded))
+
+	image1 := genTestImage(w, h, rand.New(rand.NewSource(int64(1))).Float32())
+	image2 := genTestImage(w, h, rand.New(rand.NewSource(int64(2))).Float32())
+
+	for i := 0; i < b.N; i++ {
+		im := image1
+		if i%2 == 0 {
+			im = image2
+		}
+		b.StartTimer()
+		pc.Process(im)
+		b.StopTimer()
+		b.SetBytes(int64(len(im.Pix)))
+	}
+}
+
+func genTestImage(w, h int, seed float32) *image.RGBA {
+	img := image.NewRGBA(image.Rectangle{Max: image.Point{X: w, Y: h}})
+	for x := 0; x < w; x++ {
+		for y := 0; y < h; y++ {
+			col := color.RGBA{R: uint8(seed * 255), G: uint8(seed * 255), B: uint8(seed * 255), A: 0xff}
+			img.Set(x, y, col)
+		}
+	}
+	return img
+}