diff --git a/lib/LibAvContextHandle.cpp b/lib/LibAvContextHandle.cpp
index dd250d9..6e33518 100644
--- a/lib/LibAvContextHandle.cpp
+++ b/lib/LibAvContextHandle.cpp
@@ -295,31 +295,60 @@ Bool LibAvContextHandle::initAvFormat( const char* filename, UInt& width, UInt&
 Bool LibAvContextHandle::decodeAvFormat()
 {
   Int got_frame;
+  Int decResult;
   /* read frames from the file */
   while( av_read_frame( fmt_ctx, &pkt ) >= 0 )
   {
-    if( pkt.stream_index == video_stream_idx )
+    AVPacket orig_pkt = pkt;
+    do
     {
-      /* decode video frame */
-      Int ret = avcodec_decode_video2( video_dec_ctx, frame, &got_frame, &pkt );
-      if( ret < 0 )
+      if( pkt.stream_index == video_stream_idx )
       {
-        fprintf( stderr, "Error decoding video frame\n" );
-        return false;
-      }
+        /* decode video frame */
+        decResult = avcodec_decode_video2( video_dec_ctx, frame, &got_frame, &pkt );
+        if( decResult < 0 )
+        {
+          fprintf( stderr, "Error decoding video frame\n" );
+          return false;
+        }
 
-      if( got_frame )
-      {
-        av_image_copy_to_buffer( m_pchFrameBuffer, m_uiFrameBufferSize, frame->data, frame->linesize, video_dec_ctx->pix_fmt, video_dec_ctx->width,
-            video_dec_ctx->height, 1 );
-
-        /* copy decoded frame to destination buffer:
-         * this is required since rawvideo expects non aligned data */
-        //        av_image_copy( video_dst_data, video_dst_linesize, ( const uint8_t ** )( frame->data ), frame->linesize, video_dec_ctx->pix_fmt, video_dec_ctx->width,
-        //            video_dec_ctx->height );
+        if( got_frame )
+        {
+          av_image_copy_to_buffer( m_pchFrameBuffer, m_uiFrameBufferSize, frame->data, frame->linesize, video_dec_ctx->pix_fmt, video_dec_ctx->width,
+              video_dec_ctx->height, 1 );
+        }
       }
+      pkt.data += decResult;
+      pkt.size -= decResult;
     }
-    av_free_packet( &pkt );
+    while( pkt.size > 0 );
+    av_free_packet( &orig_pkt );
+
+//  /* read frames from the file */
+//  while( av_read_frame( fmt_ctx, &pkt ) >= 0 )
+//  {
+//    if( pkt.stream_index == video_stream_idx )
+//    {
+//      /* decode video frame */
+//      Int ret = avcodec_decode_video2( video_dec_ctx, frame, &got_frame, &pkt );
+//      if( ret < 0 )
+//      {
+//        fprintf( stderr, "Error decoding video frame\n" );
+//        return false;
+//      }
+//
+//      if( got_frame )
+//      {
+//        av_image_copy_to_buffer( m_pchFrameBuffer, m_uiFrameBufferSize, frame->data, frame->linesize, video_dec_ctx->pix_fmt, video_dec_ctx->width,
+//            video_dec_ctx->height, 1 );
+//
+//        /* copy decoded frame to destination buffer:
+//         * this is required since rawvideo expects non aligned data */
+//        //        av_image_copy( video_dst_data, video_dst_linesize, ( const uint8_t ** )( frame->data ), frame->linesize, video_dec_ctx->pix_fmt, video_dec_ctx->width,
+//        //            video_dec_ctx->height );
+//      }
+//    }
+//    av_free_packet( &pkt );
     if( got_frame )
       return true;
   }
diff --git a/lib/LibMemory.h b/lib/LibMemory.h
index c245f81..1a631f6 100644
--- a/lib/LibMemory.h
+++ b/lib/LibMemory.h
@@ -176,33 +176,6 @@ Int getMem5D( T****** array5D, Int dim0, Int dim1, Int dim2, Int dim3, Int dim4
   return mem_size;
 }
 
-template<typename T>
-Int getMem3ImageComponents( T**** array3D, Int dim1, Int dim2, Int ratioDim1Chroma, Int ratioDim2Chroma )
-{
-  Int dim0 = 3;
-  Int i, mem_size = ( dim1 * dim2 + dim1 / ratioDim1Chroma * dim2 / ratioDim2Chroma * 2 ) * sizeof(T);
-
-  mem_size += getMem2D<T*>( array3D, dim0, dim1 );
-
-  if( ( ( *array3D )[0][0] = ( T* )xCallocMem( dim1 * dim2 + dim1 / ratioDim1Chroma * dim2 / ratioDim2Chroma * 2, sizeof(T) ) ) == NULL )
-    printf( "getMem3DImageComponents: array1D" );
-
-  // Luma
-  for( i = 1; i < dim1; i++ )
-    ( *array3D )[0][i] = ( *array3D )[0][i - 1] + dim2;
-
-  // Chroma
-  ( *array3D )[1][0] = ( *array3D )[0][0] + dim2 * dim1;
-  for( i = 1; i < dim1 / ratioDim1Chroma; i++ )
-    ( *array3D )[1][i] = ( *array3D )[1][i - 1] + dim2 / ratioDim2Chroma;
-
-  ( *array3D )[2][0] = ( *array3D )[1][0] + dim2 / ratioDim2Chroma * dim1 / ratioDim1Chroma;
-  for( i = 1; i < dim1 / ratioDim1Chroma; i++ )
-    ( *array3D )[2][i] = ( *array3D )[2][i - 1] + dim2 / ratioDim2Chroma;
-
-  return mem_size;
-}
-
 template<typename T>
 Void freeMem1D( T *array1D )
 {
diff --git a/lib/PlaYUVerDefs.h b/lib/PlaYUVerDefs.h
index 2976e92..febe010 100644
--- a/lib/PlaYUVerDefs.h
+++ b/lib/PlaYUVerDefs.h
@@ -47,6 +47,8 @@ typedef unsigned int UInt;
 typedef double Double;
 typedef float Float;
 
+//typedef uint32_t UInt32;
+
 // ====================================================================================================================
 // 64-bit integer type
 // ====================================================================================================================
diff --git a/lib/PlaYUVerFrame.cpp b/lib/PlaYUVerFrame.cpp
index 4ae4a00..fef348d 100644
--- a/lib/PlaYUVerFrame.cpp
+++ b/lib/PlaYUVerFrame.cpp
@@ -75,16 +75,50 @@ PlaYUVerFrame::~PlaYUVerFrame()
   if( m_pppcInputPel )
     freeMem3ImageComponents<Pel>( m_pppcInputPel );
 
-  if( m_pcRGB32 )
-    freeMem1D( m_pcRGB32 );
+  if( m_pcARGB32 )
+    freeMem1D( m_pcARGB32 );
 
   closePixfc();
 }
 
+static Int getMem3ImageComponents( Pel**** array3D, Int dim1, Int dim2, Int ratioDim1Chroma, Int ratioDim2Chroma )
+{
+  Int dim0 = 3;
+  Int i;
+  UInt64 total_mem_size = 0;
+  UInt64 mem_size = ( dim1 * dim2 + CHROMA_RESAMPLING( dim1 ) / ratioDim1Chroma * CHROMA_RESAMPLING( dim2 ) / ratioDim2Chroma * 2 );
+
+  total_mem_size += getMem2D<Pel*>( array3D, dim0, dim1 );
+
+  if( ( ( *array3D )[0][0] = ( Pel* )xCallocMem( mem_size, sizeof(Pel) ) ) == NULL )
+    printf( "getMem3DImageComponents: array1D" );
+
+  total_mem_size += mem_size * sizeof(Pel);
+
+  // Luma
+  for( i = 1; i < dim1; i++ )
+    ( *array3D )[0][i] = ( *array3D )[0][i - 1] + dim2;
+
+  // Chroma
+  ( *array3D )[1][0] = ( *array3D )[0][0] + dim2 * dim1;
+
+  dim1 = CHROMARATIO( dim1, ratioDim1Chroma );
+  dim2 = CHROMARATIO( dim2, ratioDim2Chroma );
+
+  for( i = 1; i < dim1; i++ )
+    ( *array3D )[1][i] = ( *array3D )[1][i - 1] + dim2;
+
+  ( *array3D )[2][0] = ( *array3D )[1][0] + dim2 * dim1;
+  for( i = 1; i < dim1; i++ )
+    ( *array3D )[2][i] = ( *array3D )[2][i - 1] + dim2;
+
+  return total_mem_size;
+}
+
 Void PlaYUVerFrame::init( UInt width, UInt height, Int pel_format )
 {
   m_pppcInputPel = NULL;
-  m_pcRGB32 = NULL;
+  m_pcARGB32 = NULL;
   m_uiWidth = width;
   m_uiHeight = height;
   m_iPixelFormat = pel_format;
@@ -103,13 +137,13 @@ Void PlaYUVerFrame::init( UInt width, UInt height, Int pel_format )
   m_bHasRGBPel = false;
   if( m_pcPelFormat->colorSpace == COLOR_GRAY )
   {
-    getMem3ImageComponents<Pel>( &m_pppcInputPel, m_uiHeight, m_uiWidth, 1, 1 );
+    getMem3ImageComponents( &m_pppcInputPel, m_uiHeight, m_uiWidth, 1, 1 );
   }
   else
   {
-    getMem3ImageComponents<Pel>( &m_pppcInputPel, m_uiHeight, m_uiWidth, m_pcPelFormat->ratioChromaHeight, m_pcPelFormat->ratioChromaWidth );
+    getMem3ImageComponents( &m_pppcInputPel, m_uiHeight, m_uiWidth, m_pcPelFormat->ratioChromaHeight, m_pcPelFormat->ratioChromaWidth );
   }
-  getMem1D( &m_pcRGB32, m_uiHeight * m_uiWidth * 4 );
+  getMem1D( &m_pcARGB32, m_uiHeight * m_uiWidth * 4 );
 
   xSetupStatistics( this );
   openPixfc();
@@ -136,19 +170,29 @@ UInt64 PlaYUVerFrame::getBytesPerFrame( UInt uiWidth, UInt uiHeight, Int iPixelF
   UInt64 numberBytes = uiWidth * uiHeight;
   if( pcPelFormat->numberChannels > 1 )
   {
-    numberBytes += ( pcPelFormat->numberChannels - 1 ) * ( uiWidth * uiHeight ) / ( pcPelFormat->ratioChromaWidth * pcPelFormat->ratioChromaHeight );
+    UInt64 numberBytesChroma = ( CHROMA_RESAMPLING( uiWidth ) * CHROMA_RESAMPLING( uiHeight ) )
+        / ( pcPelFormat->ratioChromaWidth * pcPelFormat->ratioChromaHeight );
+    numberBytes += ( pcPelFormat->numberChannels - 1 ) * numberBytesChroma;
   }
   return numberBytes;
 }
 
 UInt PlaYUVerFrame::getChromaWidth() const
 {
-  return m_pcPelFormat->ratioChromaWidth > 0 ? m_uiWidth / m_pcPelFormat->ratioChromaWidth : 0;
+  if( m_pcPelFormat->ratioChromaWidth > 0 )
+  {
+    return m_pcPelFormat->ratioChromaWidth > 1 ? ( m_uiWidth + 1 ) / m_pcPelFormat->ratioChromaWidth : m_uiWidth;
+  }
+  return 0;
 }
 
 UInt PlaYUVerFrame::getChromaHeight() const
 {
-  return m_pcPelFormat->ratioChromaHeight > 0 ? m_uiHeight / m_pcPelFormat->ratioChromaHeight : 0;
+  if( m_pcPelFormat->ratioChromaHeight > 0 )
+  {
+    return m_pcPelFormat->ratioChromaHeight > 1 ? ( m_uiHeight + 1 ) / m_pcPelFormat->ratioChromaHeight : m_uiHeight;
+  }
+  return 0;
 }
 
 UInt PlaYUVerFrame::getChromaLength() const
@@ -175,7 +219,7 @@ Void PlaYUVerFrame::fillRGBBuffer()
 {
   if( m_bHasRGBPel )
     return;
-  m_pcPelFormat->fillRGBbuffer( m_pppcInputPel, m_pcRGB32, m_uiWidth, m_uiHeight );
+  m_pcPelFormat->fillARGB32buffer( m_pppcInputPel, m_pcARGB32, m_uiWidth, m_uiHeight );
   m_bHasRGBPel = true;
 }
 
@@ -339,7 +383,7 @@ Void PlaYUVerFrame::getCvMat( Void** ppCvFrame )
   if( m_pcPelFormat->colorSpace != PlaYUVerFrame::COLOR_GRAY )
   {
     fillRGBBuffer();
-    memcpy( pcCvFrame->data, m_pcRGB32, m_uiWidth * m_uiHeight * 4 * sizeof(UChar) );
+    memcpy( pcCvFrame->data, m_pcARGB32, m_uiWidth * m_uiHeight * 4 * sizeof(UChar) );
   }
   else
   {
@@ -381,7 +425,7 @@ Void PlaYUVerFrame::fromCvMat( Void* voidFrame )
     Pel* pInputPelY = m_pppcInputPel[LUMA][0];
     Pel* pInputPelU = m_pppcInputPel[CHROMA_U][0];
     Pel* pInputPelV = m_pppcInputPel[CHROMA_V][0];
-    Pel* pcRGBPelInterlaced = m_pcRGB32;
+    Pel* pcRGBPelInterlaced = m_pcARGB32;
     memcpy( pcRGBPelInterlaced, opencvFrame->data, m_uiWidth * m_uiHeight * 4 * sizeof(Pel) );
     UInt* buff = ( UInt* )pcRGBPelInterlaced;
     for( UInt i = 0; i < m_uiHeight * m_uiWidth; i++ )
diff --git a/lib/PlaYUVerFrame.h b/lib/PlaYUVerFrame.h
index c7a2e30..e699ceb 100644
--- a/lib/PlaYUVerFrame.h
+++ b/lib/PlaYUVerFrame.h
@@ -195,7 +195,7 @@ public:
     {
       fillRGBBuffer();
     }
-    return m_pcRGB32;
+    return m_pcARGB32;
   }
 
   /**
@@ -243,7 +243,7 @@ private:
 
   Bool m_bHasRGBPel;
   Pel*** m_pppcInputPel;
-  UChar* m_pcRGB32;
+  UChar* m_pcARGB32;
 
   Void init( UInt width, UInt height, Int pel_format );
   Void openPixfc();
diff --git a/lib/PlaYUVerFramePixelFormats.cpp b/lib/PlaYUVerFramePixelFormats.cpp
index d2a25aa..aa316d2 100644
--- a/lib/PlaYUVerFramePixelFormats.cpp
+++ b/lib/PlaYUVerFramePixelFormats.cpp
@@ -56,37 +56,43 @@ namespace plaYUVer
  * Progressive and interlaces
  */
 
-Void frameFromBufferYUVProgressive( Pel* in, Pel ***out, UInt width, UInt height, UInt ratioChroma )
+Void frameFromBufferYUVProgressive( Pel* in, Pel ***out, UInt width, UInt height, UInt ratioChromaWidth, UInt ratioChromaHeight )
 {
+  UInt64 chromaSize = CHROMASHIFT( width, ratioChromaWidth ) * CHROMASHIFT( height, ratioChromaHeight );
   memcpy( &out[LUMA][0][0], in, width * height * sizeof(Pel) );
-  memcpy( &out[CHROMA_U][0][0], in + width * height, width * height / ratioChroma * sizeof(Pel) );
-  memcpy( &out[CHROMA_V][0][0], in + width * height + width * height / ratioChroma, width * height / ratioChroma * sizeof(Pel) );
+  memcpy( &out[CHROMA_U][0][0], in + width * height, chromaSize * sizeof(Pel) );
+  memcpy( &out[CHROMA_V][0][0], in + width * height + chromaSize, chromaSize * sizeof(Pel) );
 }
 
-Void bufferFromFrameYUVProgressive( Pel*** in, Pel *out, UInt width, UInt height, UInt ratioChroma )
+Void bufferFromFrameYUVProgressive( Pel*** in, Pel *out, UInt width, UInt height, UInt ratioChromaWidth, UInt ratioChromaHeight )
 {
+  UInt64 chromaSize = CHROMASHIFT( width, ratioChromaWidth ) * CHROMASHIFT( height, ratioChromaHeight );
   memcpy( out, &in[LUMA][0][0], width * height * sizeof(Pel) );
-  memcpy( out + width * height, &in[CHROMA_U][0][0], width * height / ratioChroma * sizeof(Pel) );
-  memcpy( out + width * height + width * height / ratioChroma, &in[CHROMA_V][0][0], width * height / ratioChroma * sizeof(Pel) );
+  memcpy( out + width * height, &in[CHROMA_U][0][0], chromaSize * sizeof(Pel) );
+  memcpy( out + width * height + chromaSize, &in[CHROMA_V][0][0], chromaSize * sizeof(Pel) );
 }
 
-Void fillRGBbufferYUV( Pel*** in, UChar* out, UInt width, UInt height, UInt ratioChromaHor, UInt ratioChromaVer )
+Void fillARGB32bufferYUV( Pel*** in, UChar* out, UInt width, UInt height, UInt ratioChromaHor, UInt ratioChromaVer )
 {
-  Pel* pY = in[LUMA][0];
+  Pel* pLineY = in[LUMA][0];
   Pel* pLineU = in[CHROMA_U][0];
   Pel* pLineV = in[CHROMA_V][0];
-  UInt uiChromaStride = width >> ratioChromaHor;
+  UInt uiChromaStride = CHROMASHIFT( width, ratioChromaHor );
+  Pel* pY;
   Pel* pU;
   Pel* pV;
   Int iY, iU, iV, iR, iG, iB;
-  UInt* buff = ( UInt* )out;
+  UInt* pARGBLine = ( UInt* )out;
+  UInt* pARGB;
 
   for( UInt y = 0; y < height >> ratioChromaVer; y++ )
   {
     for( Int i = 0; i < 1 << ratioChromaVer; i++ )
     {
+      pY = pLineY;
       pU = pLineU;
       pV = pLineV;
+      pARGB = pARGBLine;
       for( UInt x = 0; x < width >> ratioChromaHor; x++ )
       {
         iU = *pU++;
@@ -95,10 +101,11 @@ Void fillRGBbufferYUV( Pel*** in, UChar* out, UInt width, UInt height, UInt rati
         {
           iY = *pY++;
           YUV2RGB( iY, iU, iV, iR, iG, iB );
-          *buff = PEL_RGB( iR, iG, iB );
-          buff++;
+          *pARGB++ = PEL_RGB( iR, iG, iB );
         }
       }
+      pLineY += width;
+      pARGBLine += width;
     }
     pLineU += uiChromaStride;
     pLineV += uiChromaStride;
@@ -111,13 +118,13 @@ Void fillRGBbufferYUV( Pel*** in, UChar* out, UInt width, UInt height, UInt rati
 
 Void frameFromBufferYUV420p( Pel *in, Pel*** out, UInt width, UInt height )
 {
-  frameFromBufferYUVProgressive( in, out, width, height, 4 );
+  frameFromBufferYUVProgressive( in, out, width, height, 1, 1 );
 }
 Void bufferFromFrameYUV420p( Pel ***in, Pel* out, UInt width, UInt height )
 {
-  bufferFromFrameYUVProgressive( in, out, width, height, 4 );
+  bufferFromFrameYUVProgressive( in, out, width, height, 1, 1 );
 }
-Void fillRGBbufferYUV420p( Pel*** in, UChar* out, UInt width, UInt height )
+Void fillARGB32bufferYUV420p( Pel*** in, UChar* out, UInt width, UInt height )
 {
 #ifdef USE_SSE
   if( ( width % 16 ) == 0 )
@@ -260,7 +267,7 @@ Void fillRGBbufferYUV420p( Pel*** in, UChar* out, UInt width, UInt height )
   else
 #endif
   {
-    fillRGBbufferYUV( in, out, width, height, 1, 1 );
+    fillARGB32bufferYUV( in, out, width, height, 1, 1 );
   }
 }
 
@@ -273,7 +280,7 @@ PlaYUVerFramePelFormat yuv420p =
   2,
   frameFromBufferYUV420p,
   bufferFromFrameYUV420p,
-  fillRGBbufferYUV420p,
+  fillARGB32bufferYUV420p,
   ADD_FFMPEG_PEL_FMT( AV_PIX_FMT_YUV420P ), };
 
 /**
@@ -282,15 +289,15 @@ PlaYUVerFramePelFormat yuv420p =
 
 Void frameFromBufferYUV444p( Pel *in, Pel*** out, UInt width, UInt height )
 {
-  frameFromBufferYUVProgressive( in, out, width, height, 1 );
+  frameFromBufferYUVProgressive( in, out, width, height, 0, 0 );
 }
 Void bufferFromFrameYUV444p( Pel ***in, Pel* out, UInt width, UInt height )
 {
-  bufferFromFrameYUVProgressive( in, out, width, height, 1 );
+  bufferFromFrameYUVProgressive( in, out, width, height, 0, 0 );
 }
-Void fillRGBbufferYUV444p( Pel*** in, UChar* out, UInt width, UInt height )
+Void fillARGB32bufferYUV444p( Pel*** in, UChar* out, UInt width, UInt height )
 {
-  fillRGBbufferYUV( in, out, width, height, 0, 0 );
+  fillARGB32bufferYUV( in, out, width, height, 0, 0 );
 }
 PlaYUVerFramePelFormat yuv444p =
 {
@@ -301,7 +308,7 @@ PlaYUVerFramePelFormat yuv444p =
   1,
   frameFromBufferYUV444p,
   bufferFromFrameYUV444p,
-  fillRGBbufferYUV444p,
+  fillARGB32bufferYUV444p,
   ADD_FFMPEG_PEL_FMT( AV_PIX_FMT_YUV444P ), };
 
 /**
@@ -310,15 +317,15 @@ PlaYUVerFramePelFormat yuv444p =
 
 Void frameFromBufferYUV422p( Pel *in, Pel*** out, UInt width, UInt height )
 {
-  frameFromBufferYUVProgressive( in, out, width, height, 2 );
+  frameFromBufferYUVProgressive( in, out, width, height, 1, 0 );
 }
 Void bufferFromFrameYUV422p( Pel ***in, Pel* out, UInt width, UInt height )
 {
-  bufferFromFrameYUVProgressive( in, out, width, height, 2 );
+  bufferFromFrameYUVProgressive( in, out, width, height, 1, 0 );
 }
-Void fillRGBbufferYUV422( Pel*** in, UChar* out, UInt width, UInt height )
+Void fillARGB32bufferYUV422( Pel*** in, UChar* out, UInt width, UInt height )
 {
-  fillRGBbufferYUV( in, out, width, height, 1, 0 );
+  fillARGB32bufferYUV( in, out, width, height, 1, 0 );
 }
 PlaYUVerFramePelFormat yuv422p =
 {
@@ -329,7 +336,7 @@ PlaYUVerFramePelFormat yuv422p =
   1,
   frameFromBufferYUV422p,
   bufferFromFrameYUV422p,
-  fillRGBbufferYUV422,
+  fillARGB32bufferYUV422,
   ADD_FFMPEG_PEL_FMT( AV_PIX_FMT_YUV422P ), };
 
 /**
@@ -371,7 +378,7 @@ PlaYUVerFramePelFormat yuyv422 =
   1,
   frameFromBufferYUYV422,
   bufferFromFrameYUYV422,
-  fillRGBbufferYUV422,
+  fillARGB32bufferYUV422,
   ADD_FFMPEG_PEL_FMT( AV_PIX_FMT_YUYV422 ), };
 
 /**
@@ -386,7 +393,7 @@ Void bufferFromFrameGray( Pel ***in, Pel* out, UInt width, UInt height )
 {
   memcpy( out, &in[LUMA][0][0], width * height * sizeof(Pel) );
 }
-Void fillRGBbufferGray( Pel*** in, UChar* out, UInt width, UInt height )
+Void fillARGB32bufferGray( Pel*** in, UChar* out, UInt width, UInt height )
 {
   Pel *inPel = in[0][0];
   Pel iY;
@@ -407,7 +414,7 @@ PlaYUVerFramePelFormat gray =
   0,
   frameFromBufferGray,
   bufferFromFrameGray,
-  fillRGBbufferGray,
+  fillARGB32bufferGray,
   ADD_FFMPEG_PEL_FMT( AV_PIX_FMT_GRAY8 ), };
 
 /**
@@ -433,7 +440,7 @@ Void bufferFromFrameRGB( Pel ***in, Pel* out, UInt64 size, Pel* pFirst, Pel* pSe
     *out++ = *pthird++;
   }
 }
-Void fillRGBbufferRGB( Pel*** in, UChar* out, UInt width, UInt height )
+Void fillARGB32bufferRGB( Pel*** in, UChar* out, UInt width, UInt height )
 {
   Pel* pR = in[COLOR_R][0];
   Pel* pG = in[COLOR_G][0];
@@ -468,7 +475,7 @@ PlaYUVerFramePelFormat RGB24 =
   1,
   frameFromBufferRGB24,
   bufferFromFrameRGB24,
-  fillRGBbufferRGB,
+  fillARGB32bufferRGB,
   ADD_FFMPEG_PEL_FMT( AV_PIX_FMT_RGB24 ), };
 
 /** BGR 8 bits per pixel / 3 channels */
@@ -490,7 +497,7 @@ PlaYUVerFramePelFormat BGR24 =
   1,
   frameFromBufferBGR24,
   bufferFromFrameBGR24,
-  fillRGBbufferRGB,
+  fillARGB32bufferRGB,
   ADD_FFMPEG_PEL_FMT( AV_PIX_FMT_BGR24 ), };
 
 PlaYUVerFramePelFormat g_PlaYUVerFramePelFormatsList[PLAYUVER_NUMBER_FORMATS] =
diff --git a/lib/PlaYUVerFramePixelFormats.h b/lib/PlaYUVerFramePixelFormats.h
index 0624abe..88ce8de 100644
--- a/lib/PlaYUVerFramePixelFormats.h
+++ b/lib/PlaYUVerFramePixelFormats.h
@@ -31,6 +31,11 @@
 namespace plaYUVer
 {
 
+#define CHROMA_RESAMPLING( X ) ( ( ( X + 1 ) >> 1 ) << 1 )
+
+#define CHROMARATIO( SIZE, RATIO ) ( RATIO > 1 ? ( ( SIZE + 1 ) / RATIO ) : SIZE )
+#define CHROMASHIFT( SIZE, SHIFT ) ( SHIFT > 0 ? ( ( SIZE + 1 ) >> SHIFT ) : SIZE )
+
 #define CLAMP(X) X = X < 0 ? 0 : X > 255 ? 255 : X;
 
 #define YUV2RGB(  iY, iU, iV, iR, iG, iB ) \
@@ -78,7 +83,7 @@ struct structPlaYUVerFramePelFormat
   Int ratioChromaHeight;
   Void (*frameFromBuffer)( Pel *in, Pel*** out, UInt width, UInt height );
   Void (*bufferFromFrame)( Pel ***in, Pel* out, UInt width, UInt height );
-  Void (*fillRGBbuffer)( Pel*** in, UChar* out, UInt width, UInt height );
+  Void (*fillARGB32buffer)( Pel*** in, UChar* out, UInt width, UInt height );
   Int ffmpegPelFormat;
 };