diff --git a/CMakeLists.txt b/CMakeLists.txt
index bbf9907..e9d1bb7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -36,17 +36,6 @@ if(APPLE AND NOT CMAKE_OSX_ARCHITECTURES AND NOT SSE2_FOUND)
   add_definitions(-march=armv8-a+fp+simd+crypto+crc)
 endif()
 
-### ORC is not used in any active code at the moment  ###
-# I tried it with 0.4.14
-#  0.4.10 did not work (not all opcode implemented)
-# find_package(Orc)
-if(ORC_FOUND)
-add_definitions( -DUSE_ORC ${ORC_DEFINITIONS} )
-include_directories( ${ORC_INCLUDE_DIRS} )
-else()
-add_definitions( -DDISABLE_ORC )
-endif()
-
 # here we should check for SSE2
 # our  -DUSE_SSE2_ASM code does not work with fpic
 if(SSE2_FOUND)
@@ -60,7 +49,7 @@ endif()
 set(SOURCES src/frameinfo.c src/transformtype.c src/libvidstab.c
   src/transform.c src/transformfixedpoint.c src/motiondetect.c
   src/motiondetect_opt.c src/serialize.c src/localmotion2transform.c
-  src/boxblur.c src/vsvector.c src/orc/motiondetectorc.c)
+  src/boxblur.c src/vsvector.c)
 
 set(HEADERS src/frameinfo.h src/transformtype.h src/libvidstab.h
   src/transform.h src/motiondetect.h src/serialize.h
@@ -76,10 +65,6 @@ set_target_properties(vidstab PROPERTIES SOVERSION ${MAJOR_VERSION}.${MINOR_VERS
 
 target_link_libraries(vidstab m)
 set(PKG_EXTRA_LIBS -lm)
-if(ORC_FOUND)
-target_link_libraries(vidstab ${ORC_LIBRARIES})
-set(PKG_EXTRA_LIBS "${PKG_EXTRA_LIBS} ${ORC_LIBRARIES}")
-endif()
 if(USE_OMP AND OPENMP_FOUND)
 if(TARGET OpenMP::OpenMP_C)
 target_link_libraries(vidstab OpenMP::OpenMP_C)
diff --git a/CMakeModules/FindOrc.cmake b/CMakeModules/FindOrc.cmake
deleted file mode 100644
index 117fd34..0000000
--- a/CMakeModules/FindOrc.cmake
+++ /dev/null
@@ -1,29 +0,0 @@
-# find ORC
-# - Try to find LibOrc-0.4
-# Once done this will define
-#  ORC_FOUND - System has LibOrc
-#  ORC_INCLUDE_DIRS - The LibOrc include directories
-#  ORC_LIBRARIES - The libraries needed to use LibOrc
-#  ORC_DEFINITIONS - Compiler switches required for using LibOrc
-
-find_package(PkgConfig) 
-pkg_check_modules(PC_ORC orc-0.4)
-set(ORC_DEFINITIONS ${PC_ORC_CFLAGS_OTHER})
-
-find_path(ORC_INCLUDE_DIR orc/orc.h
-          HINTS ${PC_ORC_INCLUDEDIR} ${PC_ORC_INCLUDE_DIRS}
-          PATH_SUFFIXES orc)
-
-find_library(ORC_LIBRARY NAMES orc-0.4
-             HINTS ${PC_ORC_LIBDIR} ${PC_ORC_LIBRARY_DIRS} )
-
-set(ORC_LIBRARIES ${ORC_LIBRARY} )
-set(ORC_INCLUDE_DIRS ${ORC_INCLUDE_DIR} )
-include(FindPackageHandleStandardArgs)
-# handle the QUIETLY and REQUIRED arguments and set ORC_FOUND to TRUE
-# if all listed variables are TRUE
-find_package_handle_standard_args(LibOrc  DEFAULT_MSG
-                                  ORC_LIBRARY ORC_INCLUDE_DIR)
-
-mark_as_advanced(ORC_INCLUDE_DIR ORC_LIBRARY )
-# End find ORC
diff --git a/src/motiondetect.c b/src/motiondetect.c
index af96772..a856d1b 100644
--- a/src/motiondetect.c
+++ b/src/motiondetect.c
@@ -878,8 +878,7 @@ void drawLine(unsigned char* I, int width, int height, int bytesPerPixel,
 // }
 
 
-//#ifdef TESTING
-/// plain C implementation of compareSubImg (without ORC)
+/// plain C implementation of compareSubImg
 unsigned int compareSubImg_thr(unsigned char* const I1, unsigned char* const I2,
                                const Field* field, int width1, int width2, int height,
            int bytesPerPixel, int d_x, int d_y,
diff --git a/src/motiondetect_opt.c b/src/motiondetect_opt.c
index 570f89b..817daf1 100644
--- a/src/motiondetect_opt.c
+++ b/src/motiondetect_opt.c
@@ -26,10 +26,6 @@
  */
 #include "motiondetect_opt.h"
 
-#ifdef USE_ORC
-#include "orc/motiondetectorc.h"
-#endif
-
 #ifdef USE_SSE2
 #include <emmintrin.h>
 
@@ -100,35 +96,7 @@ double contrastSubImg1_SSE(unsigned char* const I, const Field* field,
 }
 #endif
 
-#ifdef USE_ORC
-/**
-   calculates the contrast in the given small part of the given image
-   using the absolute difference from mean luminance (like Root-Mean-Square,
-   but with abs() (Manhattan-Norm))
-   For multichannel images use contrastSubImg_Michelson()
-
-   \param I pointer to framebuffer
-   \param field Field specifies position(center) and size of subimage
-   \param width width of frame
-   \param height height of frame
-*/
-double contrastSubImg_variance_orc(unsigned char* const I, const Field* field,
-                                   int width, int height) {
-  unsigned char* p = NULL;
-  int s2 = field->size / 2;
-  int numpixel = field->size*field->size;
-
-  p = I + ((field->x - s2) + (field->y - s2) * width);
-
-  unsigned int sum=0;
-  image_sum_optimized((signed int*)&sum, p, width, field->size, field->size);
-  unsigned char mean = sum / numpixel;
-  int var=0;
-  image_variance_optimized(&var, p, width, mean, field->size, field->size);
-  return (double)var/numpixel/255.0;
-}
-
-/// plain C implementation of variance based contrastSubImg (without ORC)
+/// plain C implementation of variance based contrastSubImg
 double contrastSubImg_variance_C(unsigned char* const I,
                                  const Field* field, int width, int height) {
   int k, j;
@@ -158,69 +126,6 @@ double contrastSubImg_variance_C(unsigned char* const I,
   }
   return (double)var/numpixel/255.0;
 }
-#endif
-
-
-
-
-
-
-#ifdef USE_ORC
-/**
-   compares a small part of two given images
-   and returns the average absolute difference.
-   Field center, size and shift have to be choosen,
-   so that no clipping is required.
-   Uses optimized inner loops by ORC.
-
-   \param field Field specifies position(center) and size of subimage
-   \param d_x shift in x direction
-   \param d_y shift in y direction
-*/
-unsigned int compareSubImg_thr_orc(unsigned char* const I1, unsigned char* const I2,
-                                   const Field* field, int width1, int width2, int height,
-                                   int bytesPerPixel, int d_x, int d_y,
-                                   unsigned int threshold) {
-  unsigned char* p1 = NULL;
-  unsigned char* p2 = NULL;
-  int s2 = field->size / 2;
-  int j;
-  unsigned int sum = 0;
-  p1 = I1 + ((field->x - s2) + (field->y - s2) * width1) * bytesPerPixel;
-  p2 = I2 + ((field->x - s2 + d_x) + (field->y - s2 + d_y) * width2) * bytesPerPixel;
-
-  for (j = 0; j < field->size; j++) {
-    unsigned int s = 0;
-    image_line_difference_optimized(&s, p1, p2, field->size* bytesPerPixel);
-    sum += s;
-    if( sum > threshold) // no need to calculate any longer: worse than the best match
-      break;
-    p1 += width1 * bytesPerPixel;
-    p2 += width2 * bytesPerPixel;
-  }
-
-
-  return sum;
-}
-
-// implementation with 1 orc function, but no threshold
-unsigned int compareSubImg_orc(unsigned char* const I1, unsigned char* const I2,
-                               const Field* field, int width1, int width2, int height,
-                               int bytesPerPixel, int d_x, int d_y,
-                               unsigned int threshold) {
-  unsigned char* p1 = NULL;
-  unsigned char* p2 = NULL;
-  int s2 = field->size / 2;
-  unsigned int sum=0;
-  p1 = I1 + ((field->x - s2) + (field->y - s2) * width1) * bytesPerPixel;
-  p2 = I2 + ((field->x - s2 + d_x) + (field->y - s2 + d_y) * width2)
-    * bytesPerPixel;
-
-  image_difference_optimized(&sum, p1, width1 * bytesPerPixel, p2, width2 * bytesPerPixel,
-                             field->size* bytesPerPixel , field->size);
-  return sum;
-}
-#endif
 
 #ifdef USE_SSE2
 unsigned int compareSubImg_thr_sse2(unsigned char* const I1, unsigned char* const I2,
diff --git a/src/motiondetect_opt.h b/src/motiondetect_opt.h
index 75fa6c9..d250c7c 100644
--- a/src/motiondetect_opt.h
+++ b/src/motiondetect_opt.h
@@ -34,8 +34,6 @@
 #define compareSubImg compareSubImg_thr_sse2_asm
 #elif defined(USE_SSE2)      //enable SSE2 code
 #define compareSubImg compareSubImg_thr_sse2
-#elif defined(USE_ORC)
-#define compareSubImg compareSubImg_thr_orc
 #else
 #define compareSubImg compareSubImg_thr
 #endif
@@ -45,27 +43,9 @@ double contrastSubImg1_SSE(unsigned char* const I, const Field* field,
                            int width, int height);
 #endif
 
-#ifdef USE_ORC
-double contrastSubImg_variance_orc(unsigned char* const I, const Field* field,
-                          int width, int height);
 double contrastSubImg_variance_C(unsigned char* const I, const Field* field,
                         int width, int height);
 
-#endif
-
-#ifdef USE_ORC
-unsigned int compareSubImg_orc(unsigned char* const I1, unsigned char* const I2,
-                               const Field* field, int width1, int width2, int height,
-                               int bytesPerPixel, int d_x, int d_y,
-                               unsigned int threshold);
-
-
-unsigned int compareSubImg_thr_orc(unsigned char* const I1, unsigned char* const I2,
-                                   const Field* field, int width1, int width2, int height,
-                                   int bytesPerPixel, int d_x, int d_y,
-                                   unsigned int threshold);
-#endif
-
 #ifdef USE_SSE2
 unsigned int compareSubImg_thr_sse2(unsigned char* const I1, unsigned char* const I2,
                                     const Field* field, int width1, int width2, int height,
diff --git a/src/orc/Makefile b/src/orc/Makefile
deleted file mode 100644
index fc63d87..0000000
--- a/src/orc/Makefile
+++ /dev/null
@@ -1,14 +0,0 @@
-
-all: motiondetectorc.c motiondetectorc.h transformorc.c transformorc.h
-
-motiondetectorc.c : motiondetectorc.orc
-	orcc --implementation -o motiondetectorc.c motiondetectorc.orc
-
-motiondetectorc.h : motiondetectorc.orc
-	orcc --header -o motiondetectorc.h motiondetectorc.orc
-
-transformorc.c : transformorc.orc
-	orcc --implementation -o transformorc.c transformorc.orc
-
-transformorc.h : transformorc.orc
-	orcc --header -o transformorc.h transformorc.orc
\ No newline at end of file
diff --git a/src/orc/motiondetectorc.c b/src/orc/motiondetectorc.c
deleted file mode 100644
index e7329d7..0000000
--- a/src/orc/motiondetectorc.c
+++ /dev/null
@@ -1,539 +0,0 @@
-
-/* autogenerated from motiondetectorc.orc */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#ifndef _ORC_INTEGER_TYPEDEFS_
-#define _ORC_INTEGER_TYPEDEFS_
-#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
-#include <stdint.h>
-typedef int8_t orc_int8;
-typedef int16_t orc_int16;
-typedef int32_t orc_int32;
-typedef int64_t orc_int64;
-typedef uint8_t orc_uint8;
-typedef uint16_t orc_uint16;
-typedef uint32_t orc_uint32;
-typedef uint64_t orc_uint64;
-#define ORC_UINT64_C(x) UINT64_C(x)
-#elif defined(_MSC_VER)
-typedef signed __int8 orc_int8;
-typedef signed __int16 orc_int16;
-typedef signed __int32 orc_int32;
-typedef signed __int64 orc_int64;
-typedef unsigned __int8 orc_uint8;
-typedef unsigned __int16 orc_uint16;
-typedef unsigned __int32 orc_uint32;
-typedef unsigned __int64 orc_uint64;
-#define ORC_UINT64_C(x) (x##Ui64)
-#define inline __inline
-#else
-#include <limits.h>
-typedef signed char orc_int8;
-typedef short orc_int16;
-typedef int orc_int32;
-typedef unsigned char orc_uint8;
-typedef unsigned short orc_uint16;
-typedef unsigned int orc_uint32;
-#if INT_MAX == LONG_MAX
-typedef long long orc_int64;
-typedef unsigned long long orc_uint64;
-#define ORC_UINT64_C(x) (x##ULL)
-#else
-typedef long orc_int64;
-typedef unsigned long orc_uint64;
-#define ORC_UINT64_C(x) (x##UL)
-#endif
-#endif
-typedef union { orc_int16 i; orc_int8 x2[2]; } orc_union16;
-typedef union { orc_int32 i; float f; orc_int16 x2[2]; orc_int8 x4[4]; } orc_union32;
-typedef union { orc_int64 i; double f; orc_int32 x2[2]; float x2f[2]; orc_int16 x4[4]; } orc_union64;
-#endif
-#ifndef ORC_RESTRICT
-#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
-#define ORC_RESTRICT restrict
-#elif defined(__GNUC__) && __GNUC__ >= 4
-#define ORC_RESTRICT __restrict__
-#else
-#define ORC_RESTRICT
-#endif
-#endif
-
-#ifndef DISABLE_ORC
-#include <orc/orc.h>
-#endif
-void image_difference_optimized (orc_uint32 * ORC_RESTRICT a1, const orc_uint8 * ORC_RESTRICT s1, int s1_stride, const orc_uint8 * ORC_RESTRICT s2, int s2_stride, int n, int m);
-void image_line_difference_optimized (orc_uint32 * ORC_RESTRICT a1, const orc_uint8 * ORC_RESTRICT s1, const orc_uint8 * ORC_RESTRICT s2, int n);
-void image_sum_optimized (int * ORC_RESTRICT a1, const orc_uint8 * ORC_RESTRICT s1, int s1_stride, int n, int m);
-void image_variance_optimized (int * ORC_RESTRICT a1, const orc_uint8 * ORC_RESTRICT s1, int s1_stride, int p2, int n, int m);
-
-
-/* begin Orc C target preamble */
-#define ORC_CLAMP(x,a,b) ((x)<(a) ? (a) : ((x)>(b) ? (b) : (x)))
-#define ORC_ABS(a) ((a)<0 ? -(a) : (a))
-#define ORC_MIN(a,b) ((a)<(b) ? (a) : (b))
-#define ORC_MAX(a,b) ((a)>(b) ? (a) : (b))
-#define ORC_SB_MAX 127
-#define ORC_SB_MIN (-1-ORC_SB_MAX)
-#define ORC_UB_MAX 255
-#define ORC_UB_MIN 0
-#define ORC_SW_MAX 32767
-#define ORC_SW_MIN (-1-ORC_SW_MAX)
-#define ORC_UW_MAX 65535
-#define ORC_UW_MIN 0
-#define ORC_SL_MAX 2147483647
-#define ORC_SL_MIN (-1-ORC_SL_MAX)
-#define ORC_UL_MAX 4294967295U
-#define ORC_UL_MIN 0
-#define ORC_CLAMP_SB(x) ORC_CLAMP(x,ORC_SB_MIN,ORC_SB_MAX)
-#define ORC_CLAMP_UB(x) ORC_CLAMP(x,ORC_UB_MIN,ORC_UB_MAX)
-#define ORC_CLAMP_SW(x) ORC_CLAMP(x,ORC_SW_MIN,ORC_SW_MAX)
-#define ORC_CLAMP_UW(x) ORC_CLAMP(x,ORC_UW_MIN,ORC_UW_MAX)
-#define ORC_CLAMP_SL(x) ORC_CLAMP(x,ORC_SL_MIN,ORC_SL_MAX)
-#define ORC_CLAMP_UL(x) ORC_CLAMP(x,ORC_UL_MIN,ORC_UL_MAX)
-#define ORC_SWAP_W(x) ((((x)&0xff)<<8) | (((x)&0xff00)>>8))
-#define ORC_SWAP_L(x) ((((x)&0xff)<<24) | (((x)&0xff00)<<8) | (((x)&0xff0000)>>8) | (((x)&0xff000000)>>24))
-#define ORC_SWAP_Q(x) ((((x)&ORC_UINT64_C(0xff))<<56) | (((x)&ORC_UINT64_C(0xff00))<<40) | (((x)&ORC_UINT64_C(0xff0000))<<24) | (((x)&ORC_UINT64_C(0xff000000))<<8) | (((x)&ORC_UINT64_C(0xff00000000))>>8) | (((x)&ORC_UINT64_C(0xff0000000000))>>24) | (((x)&ORC_UINT64_C(0xff000000000000))>>40) | (((x)&ORC_UINT64_C(0xff00000000000000))>>56))
-#define ORC_PTR_OFFSET(ptr,offset) ((void *)(((unsigned char *)(ptr)) + (offset)))
-#define ORC_DENORMAL(x) ((x) & ((((x)&0x7f800000) == 0) ? 0xff800000 : 0xffffffff))
-#define ORC_ISNAN(x) ((((x)&0x7f800000) == 0x7f800000) && (((x)&0x007fffff) != 0))
-#define ORC_DENORMAL_DOUBLE(x) ((x) & ((((x)&ORC_UINT64_C(0x7ff0000000000000)) == 0) ? ORC_UINT64_C(0xfff0000000000000) : ORC_UINT64_C(0xffffffffffffffff)))
-#define ORC_ISNAN_DOUBLE(x) ((((x)&ORC_UINT64_C(0x7ff0000000000000)) == ORC_UINT64_C(0x7ff0000000000000)) && (((x)&ORC_UINT64_C(0x000fffffffffffff)) != 0))
-#ifndef ORC_RESTRICT
-#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
-#define ORC_RESTRICT restrict
-#elif defined(__GNUC__) && __GNUC__ >= 4
-#define ORC_RESTRICT __restrict__
-#else
-#define ORC_RESTRICT
-#endif
-#endif
-/* end Orc C target preamble */
-
-
-
-/* image_difference_optimized */
-#ifdef DISABLE_ORC
-void
-image_difference_optimized (orc_uint32 * ORC_RESTRICT a1, const orc_uint8 * ORC_RESTRICT s1, int s1_stride, const orc_uint8 * ORC_RESTRICT s2, int s2_stride, int n, int m){
-  int i;
-  int j;
-  const orc_int8 * ORC_RESTRICT ptr4;
-  const orc_int8 * ORC_RESTRICT ptr5;
-  orc_union32 var12 =  { 0 };
-  orc_int8 var32;
-  orc_int8 var33;
-
-  for (j = 0; j < m; j++) {
-    ptr4 = ORC_PTR_OFFSET(s1, s1_stride * j);
-    ptr5 = ORC_PTR_OFFSET(s2, s2_stride * j);
-
-
-    for (i = 0; i < n; i++) {
-      /* 0: loadb */
-      var32 = ptr4[i];
-      /* 1: loadb */
-      var33 = ptr5[i];
-      /* 2: accsadubl */
-      var12.i = var12.i + ORC_ABS((orc_int32)(orc_uint8)var32 - (orc_int32)(orc_uint8)var33);
-    }
-  }
-  *a1 = var12.i;
-
-}
-
-#else
-static void
-_backup_image_difference_optimized (OrcExecutor * ORC_RESTRICT ex)
-{
-  int i;
-  int j;
-  int n = ex->n;
-  int m = ex->params[ORC_VAR_A1];
-  const orc_int8 * ORC_RESTRICT ptr4;
-  const orc_int8 * ORC_RESTRICT ptr5;
-  orc_union32 var12 =  { 0 };
-  orc_int8 var32;
-  orc_int8 var33;
-
-  for (j = 0; j < m; j++) {
-    ptr4 = ORC_PTR_OFFSET(ex->arrays[4], ex->params[4] * j);
-    ptr5 = ORC_PTR_OFFSET(ex->arrays[5], ex->params[5] * j);
-
-
-    for (i = 0; i < n; i++) {
-      /* 0: loadb */
-      var32 = ptr4[i];
-      /* 1: loadb */
-      var33 = ptr5[i];
-      /* 2: accsadubl */
-      var12.i = var12.i + ORC_ABS((orc_int32)(orc_uint8)var32 - (orc_int32)(orc_uint8)var33);
-    }
-  }
-  ex->accumulators[0] = var12.i;
-
-}
-
-void
-image_difference_optimized (orc_uint32 * ORC_RESTRICT a1, const orc_uint8 * ORC_RESTRICT s1, int s1_stride, const orc_uint8 * ORC_RESTRICT s2, int s2_stride, int n, int m)
-{
-  OrcExecutor _ex, *ex = &_ex;
-  static int p_inited = 0;
-  static OrcCode *c = 0;
-  void (*func) (OrcExecutor *);
-
-  if (!p_inited) {
-    orc_once_mutex_lock ();
-    if (!p_inited) {
-      OrcProgram *p;
-
-      p = orc_program_new ();
-      orc_program_set_2d (p);
-      orc_program_set_name (p, "image_difference_optimized");
-      orc_program_set_backup_function (p, _backup_image_difference_optimized);
-      orc_program_add_source (p, 1, "s1");
-      orc_program_add_source (p, 1, "s2");
-      orc_program_add_accumulator (p, 4, "a1");
-
-      orc_program_append_2 (p, "accsadubl", 0, ORC_VAR_A1, ORC_VAR_S1, ORC_VAR_S2, ORC_VAR_D1);
-
-      orc_program_compile (p);
-      c = orc_program_take_code (p);
-      orc_program_free (p);
-    }
-    p_inited = TRUE;
-    orc_once_mutex_unlock ();
-  }
-  ex->arrays[ORC_VAR_A2] = c;
-  ex->program = 0;
-
-  ex->n = n;
-  ORC_EXECUTOR_M(ex) = m;
-  ex->arrays[ORC_VAR_S1] = (void *)s1;
-  ex->params[ORC_VAR_S1] = s1_stride;
-  ex->arrays[ORC_VAR_S2] = (void *)s2;
-  ex->params[ORC_VAR_S2] = s2_stride;
-
-  func = c->exec;
-  func (ex);
-  *a1 = orc_executor_get_accumulator (ex, ORC_VAR_A1);
-}
-#endif
-
-
-/* image_line_difference_optimized */
-#ifdef DISABLE_ORC
-void
-image_line_difference_optimized (orc_uint32 * ORC_RESTRICT a1, const orc_uint8 * ORC_RESTRICT s1, const orc_uint8 * ORC_RESTRICT s2, int n){
-  int i;
-  const orc_int8 * ORC_RESTRICT ptr4;
-  const orc_int8 * ORC_RESTRICT ptr5;
-  orc_union32 var12 =  { 0 };
-  orc_int8 var32;
-  orc_int8 var33;
-
-  ptr4 = (orc_int8 *)s1;
-  ptr5 = (orc_int8 *)s2;
-
-
-  for (i = 0; i < n; i++) {
-    /* 0: loadb */
-    var32 = ptr4[i];
-    /* 1: loadb */
-    var33 = ptr5[i];
-    /* 2: accsadubl */
-    var12.i = var12.i + ORC_ABS((orc_int32)(orc_uint8)var32 - (orc_int32)(orc_uint8)var33);
-  }
-  *a1 = var12.i;
-
-}
-
-#else
-static void
-_backup_image_line_difference_optimized (OrcExecutor * ORC_RESTRICT ex)
-{
-  int i;
-  int n = ex->n;
-  const orc_int8 * ORC_RESTRICT ptr4;
-  const orc_int8 * ORC_RESTRICT ptr5;
-  orc_union32 var12 =  { 0 };
-  orc_int8 var32;
-  orc_int8 var33;
-
-  ptr4 = (orc_int8 *)ex->arrays[4];
-  ptr5 = (orc_int8 *)ex->arrays[5];
-
-
-  for (i = 0; i < n; i++) {
-    /* 0: loadb */
-    var32 = ptr4[i];
-    /* 1: loadb */
-    var33 = ptr5[i];
-    /* 2: accsadubl */
-    var12.i = var12.i + ORC_ABS((orc_int32)(orc_uint8)var32 - (orc_int32)(orc_uint8)var33);
-  }
-  ex->accumulators[0] = var12.i;
-
-}
-
-void
-image_line_difference_optimized (orc_uint32 * ORC_RESTRICT a1, const orc_uint8 * ORC_RESTRICT s1, const orc_uint8 * ORC_RESTRICT s2, int n)
-{
-  OrcExecutor _ex, *ex = &_ex;
-  static int p_inited = 0;
-  static OrcCode *c = 0;
-  void (*func) (OrcExecutor *);
-
-  if (!p_inited) {
-    orc_once_mutex_lock ();
-    if (!p_inited) {
-      OrcProgram *p;
-
-      p = orc_program_new ();
-      orc_program_set_name (p, "image_line_difference_optimized");
-      orc_program_set_backup_function (p, _backup_image_line_difference_optimized);
-      orc_program_add_source (p, 1, "s1");
-      orc_program_add_source (p, 1, "s2");
-      orc_program_add_accumulator (p, 4, "a1");
-
-      orc_program_append_2 (p, "accsadubl", 0, ORC_VAR_A1, ORC_VAR_S1, ORC_VAR_S2, ORC_VAR_D1);
-
-      orc_program_compile (p);
-      c = orc_program_take_code (p);
-      orc_program_free (p);
-    }
-    p_inited = TRUE;
-    orc_once_mutex_unlock ();
-  }
-  ex->arrays[ORC_VAR_A2] = c;
-  ex->program = 0;
-
-  ex->n = n;
-  ex->arrays[ORC_VAR_S1] = (void *)s1;
-  ex->arrays[ORC_VAR_S2] = (void *)s2;
-
-  func = c->exec;
-  func (ex);
-  *a1 = orc_executor_get_accumulator (ex, ORC_VAR_A1);
-}
-#endif
-
-
-/* image_sum_optimized */
-#ifdef DISABLE_ORC
-void
-image_sum_optimized (int * ORC_RESTRICT a1, const orc_uint8 * ORC_RESTRICT s1, int s1_stride, int n, int m){
-  int i;
-  int j;
-  const orc_int8 * ORC_RESTRICT ptr4;
-  orc_union32 var12 =  { 0 };
-  orc_int8 var34;
-  orc_union16 var35;
-  orc_union32 var36;
-
-  for (j = 0; j < m; j++) {
-    ptr4 = ORC_PTR_OFFSET(s1, s1_stride * j);
-
-
-    for (i = 0; i < n; i++) {
-      /* 0: loadb */
-      var34 = ptr4[i];
-      /* 1: convubw */
-      var35.i = (orc_uint8)var34;
-      /* 2: convuwl */
-      var36.i = (orc_uint16)var35.i;
-      /* 3: accl */
-      var12.i = var12.i + var36.i;
-    }
-  }
-  *a1 = var12.i;
-
-}
-
-#else
-static void
-_backup_image_sum_optimized (OrcExecutor * ORC_RESTRICT ex)
-{
-  int i;
-  int j;
-  int n = ex->n;
-  int m = ex->params[ORC_VAR_A1];
-  const orc_int8 * ORC_RESTRICT ptr4;
-  orc_union32 var12 =  { 0 };
-  orc_int8 var34;
-  orc_union16 var35;
-  orc_union32 var36;
-
-  for (j = 0; j < m; j++) {
-    ptr4 = ORC_PTR_OFFSET(ex->arrays[4], ex->params[4] * j);
-
-
-    for (i = 0; i < n; i++) {
-      /* 0: loadb */
-      var34 = ptr4[i];
-      /* 1: convubw */
-      var35.i = (orc_uint8)var34;
-      /* 2: convuwl */
-      var36.i = (orc_uint16)var35.i;
-      /* 3: accl */
-      var12.i = var12.i + var36.i;
-    }
-  }
-  ex->accumulators[0] = var12.i;
-
-}
-
-void
-image_sum_optimized (int * ORC_RESTRICT a1, const orc_uint8 * ORC_RESTRICT s1, int s1_stride, int n, int m)
-{
-  OrcExecutor _ex, *ex = &_ex;
-  static int p_inited = 0;
-  static OrcCode *c = 0;
-  void (*func) (OrcExecutor *);
-
-  if (!p_inited) {
-    orc_once_mutex_lock ();
-    if (!p_inited) {
-      OrcProgram *p;
-
-      p = orc_program_new ();
-      orc_program_set_2d (p);
-      orc_program_set_name (p, "image_sum_optimized");
-      orc_program_set_backup_function (p, _backup_image_sum_optimized);
-      orc_program_add_source (p, 1, "s1");
-      orc_program_add_accumulator (p, 4, "a1");
-      orc_program_add_temporary (p, 2, "t1");
-      orc_program_add_temporary (p, 4, "t2");
-
-      orc_program_append_2 (p, "convubw", 0, ORC_VAR_T1, ORC_VAR_S1, ORC_VAR_D1, ORC_VAR_D1);
-      orc_program_append_2 (p, "convuwl", 0, ORC_VAR_T2, ORC_VAR_T1, ORC_VAR_D1, ORC_VAR_D1);
-      orc_program_append_2 (p, "accl", 0, ORC_VAR_A1, ORC_VAR_T2, ORC_VAR_D1, ORC_VAR_D1);
-
-      orc_program_compile (p);
-      c = orc_program_take_code (p);
-      orc_program_free (p);
-    }
-    p_inited = TRUE;
-    orc_once_mutex_unlock ();
-  }
-  ex->arrays[ORC_VAR_A2] = c;
-  ex->program = 0;
-
-  ex->n = n;
-  ORC_EXECUTOR_M(ex) = m;
-  ex->arrays[ORC_VAR_S1] = (void *)s1;
-  ex->params[ORC_VAR_S1] = s1_stride;
-
-  func = c->exec;
-  func (ex);
-  *a1 = orc_executor_get_accumulator (ex, ORC_VAR_A1);
-}
-#endif
-
-
-/* image_variance_optimized */
-#ifdef DISABLE_ORC
-void
-image_variance_optimized (int * ORC_RESTRICT a1, const orc_uint8 * ORC_RESTRICT s1, int s1_stride, int p2, int n, int m){
-  int i;
-  int j;
-  const orc_int8 * ORC_RESTRICT ptr4;
-  orc_union32 var12 =  { 0 };
-  orc_int8 var32;
-  orc_int8 var33;
-
-  for (j = 0; j < m; j++) {
-    ptr4 = ORC_PTR_OFFSET(s1, s1_stride * j);
-
-      /* 1: loadpb */
-        var33 = p2;
-
-    for (i = 0; i < n; i++) {
-      /* 0: loadb */
-      var32 = ptr4[i];
-      /* 2: accsadubl */
-      var12.i = var12.i + ORC_ABS((orc_int32)(orc_uint8)var32 - (orc_int32)(orc_uint8)var33);
-    }
-  }
-  *a1 = var12.i;
-
-}
-
-#else
-static void
-_backup_image_variance_optimized (OrcExecutor * ORC_RESTRICT ex)
-{
-  int i;
-  int j;
-  int n = ex->n;
-  int m = ex->params[ORC_VAR_A1];
-  const orc_int8 * ORC_RESTRICT ptr4;
-  orc_union32 var12 =  { 0 };
-  orc_int8 var32;
-  orc_int8 var33;
-
-  for (j = 0; j < m; j++) {
-    ptr4 = ORC_PTR_OFFSET(ex->arrays[4], ex->params[4] * j);
-
-      /* 1: loadpb */
-        var33 = ex->params[25];
-
-    for (i = 0; i < n; i++) {
-      /* 0: loadb */
-      var32 = ptr4[i];
-      /* 2: accsadubl */
-      var12.i = var12.i + ORC_ABS((orc_int32)(orc_uint8)var32 - (orc_int32)(orc_uint8)var33);
-    }
-  }
-  ex->accumulators[0] = var12.i;
-
-}
-
-void
-image_variance_optimized (int * ORC_RESTRICT a1, const orc_uint8 * ORC_RESTRICT s1, int s1_stride, int p2, int n, int m)
-{
-  OrcExecutor _ex, *ex = &_ex;
-  static int p_inited = 0;
-  static OrcCode *c = 0;
-  void (*func) (OrcExecutor *);
-
-  if (!p_inited) {
-    orc_once_mutex_lock ();
-    if (!p_inited) {
-      OrcProgram *p;
-
-      p = orc_program_new ();
-      orc_program_set_2d (p);
-      orc_program_set_name (p, "image_variance_optimized");
-      orc_program_set_backup_function (p, _backup_image_variance_optimized);
-      orc_program_add_source (p, 1, "s1");
-      orc_program_add_accumulator (p, 4, "a1");
-      orc_program_add_parameter (p, 1, "p2");
-
-      orc_program_append_2 (p, "accsadubl", 0, ORC_VAR_A1, ORC_VAR_S1, ORC_VAR_P2, ORC_VAR_D1);
-
-      orc_program_compile (p);
-      c = orc_program_take_code (p);
-      orc_program_free (p);
-    }
-    p_inited = TRUE;
-    orc_once_mutex_unlock ();
-  }
-  ex->arrays[ORC_VAR_A2] = c;
-  ex->program = 0;
-
-  ex->n = n;
-  ORC_EXECUTOR_M(ex) = m;
-  ex->arrays[ORC_VAR_S1] = (void *)s1;
-  ex->params[ORC_VAR_S1] = s1_stride;
-  ex->params[ORC_VAR_P2] = p2;
-
-  func = c->exec;
-  func (ex);
-  *a1 = orc_executor_get_accumulator (ex, ORC_VAR_A1);
-}
-#endif
-
-
diff --git a/src/orc/motiondetectorc.h b/src/orc/motiondetectorc.h
deleted file mode 100644
index 1c2c7ae..0000000
--- a/src/orc/motiondetectorc.h
+++ /dev/null
@@ -1,79 +0,0 @@
-
-/* autogenerated from motiondetectorc.orc */
-
-#ifndef _MOTIONDETECTORC_H_
-#define _MOTIONDETECTORC_H_
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-
-#ifndef _ORC_INTEGER_TYPEDEFS_
-#define _ORC_INTEGER_TYPEDEFS_
-#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
-#include <stdint.h>
-typedef int8_t orc_int8;
-typedef int16_t orc_int16;
-typedef int32_t orc_int32;
-typedef int64_t orc_int64;
-typedef uint8_t orc_uint8;
-typedef uint16_t orc_uint16;
-typedef uint32_t orc_uint32;
-typedef uint64_t orc_uint64;
-#define ORC_UINT64_C(x) UINT64_C(x)
-#elif defined(_MSC_VER)
-typedef signed __int8 orc_int8;
-typedef signed __int16 orc_int16;
-typedef signed __int32 orc_int32;
-typedef signed __int64 orc_int64;
-typedef unsigned __int8 orc_uint8;
-typedef unsigned __int16 orc_uint16;
-typedef unsigned __int32 orc_uint32;
-typedef unsigned __int64 orc_uint64;
-#define ORC_UINT64_C(x) (x##Ui64)
-#define inline __inline
-#else
-#include <limits.h>
-typedef signed char orc_int8;
-typedef short orc_int16;
-typedef int orc_int32;
-typedef unsigned char orc_uint8;
-typedef unsigned short orc_uint16;
-typedef unsigned int orc_uint32;
-#if INT_MAX == LONG_MAX
-typedef long long orc_int64;
-typedef unsigned long long orc_uint64;
-#define ORC_UINT64_C(x) (x##ULL)
-#else
-typedef long orc_int64;
-typedef unsigned long orc_uint64;
-#define ORC_UINT64_C(x) (x##UL)
-#endif
-#endif
-typedef union { orc_int16 i; orc_int8 x2[2]; } orc_union16;
-typedef union { orc_int32 i; float f; orc_int16 x2[2]; orc_int8 x4[4]; } orc_union32;
-typedef union { orc_int64 i; double f; orc_int32 x2[2]; float x2f[2]; orc_int16 x4[4]; } orc_union64;
-#endif
-#ifndef ORC_RESTRICT
-#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
-#define ORC_RESTRICT restrict
-#elif defined(__GNUC__) && __GNUC__ >= 4
-#define ORC_RESTRICT __restrict__
-#else
-#define ORC_RESTRICT
-#endif
-#endif
-void image_difference_optimized (orc_uint32 * ORC_RESTRICT a1, const orc_uint8 * ORC_RESTRICT s1, int s1_stride, const orc_uint8 * ORC_RESTRICT s2, int s2_stride, int n, int m);
-void image_line_difference_optimized (orc_uint32 * ORC_RESTRICT a1, const orc_uint8 * ORC_RESTRICT s1, const orc_uint8 * ORC_RESTRICT s2, int n);
-void image_sum_optimized (int * ORC_RESTRICT a1, const orc_uint8 * ORC_RESTRICT s1, int s1_stride, int n, int m);
-void image_variance_optimized (int * ORC_RESTRICT a1, const orc_uint8 * ORC_RESTRICT s1, int s1_stride, int p2, int n, int m);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
-
diff --git a/src/orc/motiondetectorc.orc b/src/orc/motiondetectorc.orc
deleted file mode 100644
index fd825dd..0000000
--- a/src/orc/motiondetectorc.orc
+++ /dev/null
@@ -1,84 +0,0 @@
-################################################################################
-# Optimized functions 
-################################################################################
-
-# Image Difference
-#
-#  for (j = 0; j < field->size; j++) {
-#    for (k = 0; k < field->size * bytesPerPixel; k++) {
-#      sum += abs((int) *p1 - (int) *p2);
-#      p1++;
-#      p2++;
-#    }
-#    p1 += (width - field->size) * bytesPerPixel;
-#    p2 += (width - field->size) * bytesPerPixel;
-#  }
-
-.function image_difference_optimized
-.flags 2d
-.source 1 s1 uint8_t
-.source 1 s2 uint8_t
-.accumulator 4 sum uint32_t
-accsadubl sum, s1, s2
-
-
-.function image_line_difference_optimized
-.source 1 s1 uint8_t
-.source 1 s2 uint8_t
-.accumulator 4 sum uint32_t
-accsadubl sum, s1, s2
-
-
-
-# Image Contrast
-#  SUM
-# p = pstart;
-# for (j = 0; j < field->size; j++) {      
-#   for (k = 0; k < field->size; k++, p++) {
-#     sum+=*p;
-#   }
-#   p += (width - field->size);
-# }
-# mean=sum/numpixel;
-# p = pstart;  
-#  VARIANCE
-# for (j = 0; j < field->size; j++) {      
-#   for (k = 0; k < field->size; k++, p++) {
-#     var+=abs(*p-mean);
-#   }
-#   p += (width - field->size);
-# }
-
-
-# Image Contrast functions
-# Sum of all pixels (used to calculate mean)
-.function image_sum_optimized
-.flags 2d
-.accumulator 4 sum int
-.source 1 s uint8_t
-.temp 2 t1 
-.temp 4 t2
-convubw t1 s
-convuwl t2 t1
-accl sum, t2
-
-# this implementation appears to be slower
-# .function image_sum_optimized
-# .flags 2d
-# .accumulator 4 sum int
-# .source 1 s uint8_t
-# .const 1 c1 0
-# accsadubl sum, s, c1
-
-# Variance of the image in Manhattan-Norm (absolute value)
-.function image_variance_optimized
-.flags 2d
-.accumulator 4 var int
-.source 1 s uint8_t
-.param 1 mean uint8_t
-accsadubl var, s, mean
-
-
-
-
-
diff --git a/src/orc/transformorc.orc b/src/orc/transformorc.orc
deleted file mode 100644
index 3a5ba68..0000000
--- a/src/orc/transformorc.orc
+++ /dev/null
@@ -1,65 +0,0 @@
-################################################################################
-# Optimized functions 
-################################################################################
-
-# Hint: use only one space between opcode and operands (and also between them)
-
-# Rotation and Translation of one line
-
-# for (x = 0; x < td->fiDest.width; x++) {
-# 	int32_t x_d1 = (xs[x] - c_d_x);
-# 	x_ss[x]  =  zcos_a * x_d1 + zsin_a * y_d1 + c_tx;
-# 	y_ss[x]  = -zsin_a * x_d1 + zcos_a * y_d1 + c_ty;
-# }
-
-
-.function transform_one_line_optimized
-.dest 4 x_ss int32_t    # fp16
-.dest 4 y_ss int32_t    # fp16
-.source 4 xs int32_t
-.param 4 y_d1 int32_t
-.param 4 c_d_x int32_t
-.param 4 c_tx int32_t   # fp16
-.param 4 c_ty int32_t   # fp16
-.param 4 zcos_a int32_t # fp16
-.param 4 zsin_a int32_t # fp16
-.temp 4 x_d1
-.temp 4 tmp1
-.temp 4 tmp2
-
-subl x_d1, xs, c_d_x
-mulll tmp1 zcos_a x_d1
-mulll tmp2 zsin_a y_d1
-addl tmp1 tmp1 tmp2
-addl x_ss tmp1 c_tx
-mulll tmp1 zcos_a y_d1
-mulll tmp2 zsin_a x_d1
-subl tmp1 tmp1 tmp2
-addl y_ss tmp1 c_ty
-
-
-.function transform_one_line_optimized1
-.dest 4 x_ss int32_t    # fp16
-.source 4 xs int32_t
-.param 4 y_d1 int32_t
-.param 4 c_d_x int32_t
-.param 4 c_tx int32_t   # fp16
-.param 4 c_ty int32_t   # fp16
-.param 4 zcos_a int32_t # fp16
-.param 4 zsin_a int32_t # fp16
-.param 4 sin_y int32_t # fp16
-.param 4 cos_y int32_t # fp16
-.temp 4 x_d1
-.temp 4 tmp1
-.temp 4 tmp2
-subl x_d1, xs, c_d_x
-mulll tmp1, x_d1, zcos_a
-addl tmp1, tmp1, sin_y
-addl x_ss, tmp1, c_tx
-mulll tmp1, x_d1, zsin_a
-mulll tmp1, tmp1, -1
-addl tmp2, tmp1, cos_y
-# addl y_ss, tmp1, c_ty
-
-
-
diff --git a/src/transformfixedpoint.c b/src/transformfixedpoint.c
index 3549747..bfc0a9c 100644
--- a/src/transformfixedpoint.c
+++ b/src/transformfixedpoint.c
@@ -28,9 +28,6 @@
 #include "transform.h"
 #include "transformtype_operations.h"
 
-// the orc code does not work at the moment (BUG in ORC?)
-// #include "orc/transformorc.h"
-
 //#include <math.h>
 //#include <libgen.h>
 
@@ -394,121 +391,6 @@ int transformPlanar(VSTransformData* td, VSTransform t)
 }
 
 
-
-/* /\** TESTING */
-/*  * transformPlanar_orc: applies current transformation to frame */
-/*  * */
-/*  * Parameters: */
-/*  *         td: private data structure of this filter */
-/*  * Return value:  */
-/*  *         0 for failture, 1 for success */
-/*  * Preconditions: */
-/*  *  The frame must be in Planar format */
-/*  * */
-/*  * Fixed-point format 32 bit integer: */
-/*  *  for image coords we use val<<8 */
-/*  *  for angle and zoom we use val<<16 */
-/*  * */
-/*  *\/ */
-/* int transformPlanar_orc(VSTransformData* td, VSTransform t) */
-/* { */
-/*     int32_t x = 0, y = 0; */
-/*     uint8_t *Y_1, *Y_2, *Cb_1, *Cb_2, *Cr_1, *Cr_2; */
-
-/*     if (t.alpha==0 && t.x==0 && t.y==0 && t.zoom == 0) return VS_OK; // noop */
-
-/*     Y_1  = td->src;   */
-/*     Y_2  = td->destbuf;   */
-/*     Cb_1 = td->src + td->fiSrc.width * td->fiSrc.height; */
-/*     Cb_2 = td->destbuf + td->fiDest.width * td->fiDest.height; */
-/*     Cr_1 = td->src + 5*td->fiSrc.width * td->fiSrc.height/4; */
-/*     Cr_2 = td->destbuf + 5*td->fiDest.width * td->fiDest.height/4; */
-/*     fp16 c_s_x = iToFp16(td->fiSrc.width / 2); */
-/*     fp16 c_s_y = iToFp16(td->fiSrc.height / 2); */
-/*     int32_t c_d_x = td->fiDest.width / 2; */
-/*     int32_t c_d_y = td->fiDest.height / 2;     */
-
-/*     float z     = 1.0-t.zoom/100.0; */
-/*     fp16 zcos_a = fToFp16(z*cos(-t.alpha)); // scaled cos */
-/*     fp16 zsin_a = fToFp16(z*sin(-t.alpha)); // scaled sin */
-/*     fp16  c_tx    = c_s_x - fToFp16(t.x); */
-/*     fp16  c_ty    = c_s_y - fToFp16(t.y); */
-
-/*     /\* for each pixel in the destination image we calc the source */
-/*      * coordinate and make an interpolation:  */
-/*      *      p_d = c_d + M(p_s - c_s) + t  */
-/*      * where p are the points, c the center coordinate,  */
-/*      *  _s source and _d destination,  */
-/*      *  t the translation, and M the rotation and scaling matrix */
-/*      *      p_s = M^{-1}(p_d - c_d - t) + c_s */
-/*      *\/ */
-/*     /\* Luminance channel *\/ */
-/*     fp16* x_ss = (fp16*)malloc(sizeof(fp16)*td->fiDest.width); */
-/*     fp16* y_ss = (fp16*)malloc(sizeof(fp16)*td->fiDest.width);     */
-/*     int32_t* xs = (int32_t*)malloc(sizeof(int32_t)*td->fiDest.width);         */
-/*     for (x = 0; x < td->fiDest.width; x++) { // this can go to td */
-/*       xs[x]=x; */
-/*     } */
-
-/*     for (y = 0; y < td->fiDest.height; y++) { */
-/*       int32_t y_d1 = (y - c_d_y);   */
-/*       fp16 sin_y   = zsin_a * y_d1; */
-/*       fp16 cos_y   = zcos_a * y_d1; */
-/*       for (x = 0; x < td->fiDest.width; x++) { */
-/*         int32_t x_d1 = (xs[x] - c_d_x); */
-/*         //x_ss[x]  =  zcos_a * x_d1 + zsin_a * y_d1 + c_tx; */
-/*   y_ss[x]  = -zsin_a * x_d1 + zcos_a * y_d1 + c_ty; */
-/*       } */
-/*       transform_one_line_optimized1 (x_ss, y_ss, xs, y_d1, c_d_x,  */
-/*              c_tx, c_ty, zcos_a, zsin_a, sin_y, cos_y,  */
-/*              td->fiDest.width); */
-/*       // transform_one_line_optimized (x_ss, y_ss, xs, y_d1, c_d_x,  */
-/*       //             c_tx, c_ty, zcos_a, zsin_a, td->fiDest.width); */
-
-/*       for (x = 0; x < td->fiDest.width; x++) { */
-/*   uint8_t *dest = &Y_2[x + y * td->fiDest.width]; */
-/*   td->interpolate(dest, x_ss[x], y_ss[x], Y_1,  */
-/*         td->fiSrc.width, td->fiSrc.height,  */
-/*         td->crop ? 16 : *dest); */
-/*       } */
-/*     } */
-
-/*     /\* Color channels *\/ */
-/*     int32_t ws2 = td->fiSrc.width/2; */
-/*     int32_t wd2 = td->fiDest.width/2; */
-/*     int32_t hs2 = td->fiSrc.height/2; */
-/*     int32_t hd2 = td->fiDest.height/2; */
-/*     fp16 c_tx2   = c_tx/2; */
-/*     fp16 c_ty2   = c_ty/2; */
-
-/*     for (y = 0; y < hd2; y++) { */
-/*       int32_t y_d1 = y - (c_d_y)/2; */
-/*       for (x = 0; x < wd2; x++) { */
-/*   int32_t x_d1 = x - (c_d_x)/2; */
-/*   fp16 x_s  =  zcos_a * x_d1 + zsin_a * y_d1 + c_tx2; */
-/*   fp16 y_s  = -zsin_a * x_d1 + zcos_a * y_d1 + c_ty2;  */
-/*   uint8_t *dest = &Cr_2[x + y * wd2]; */
-/*   td->interpolate(dest, x_s, y_s, Cr_1, ws2, hs2,  */
-/*         td->crop ? 128 : *dest); */
-/*   dest = &Cb_2[x + y * wd2]; */
-/*   td->interpolate(dest, x_s, y_s, Cb_1, ws2, hs2,  */
-/*         td->crop ? 128 : *dest); */
-/*       } */
-/*     } */
-
-/*     return VS_OK; */
-/* } */
-
-/*
-  some debugging stuff
-  FILE* f1 = fopen("transFP.pos","w");
-  fprintf(f1,"%i,%i:\t %f,%f\n", x, y, x_s / (float)(1<<16), y_s / (float)(1<<16));
-  fclose(f1);
-
-*/
-
-
-
 /*
  * Local variables:
  *   c-file-style: "stroustrup"
diff --git a/src/transformfixedpoint.h b/src/transformfixedpoint.h
index e96011d..e56473d 100644
--- a/src/transformfixedpoint.h
+++ b/src/transformfixedpoint.h
@@ -38,10 +38,6 @@ int transformPacked(struct _VSTransformData* td, VSTransform t);
 /// does the actual transformation in Planar space
 int transformPlanar(struct _VSTransformData* td, VSTransform t);
 
-// testing
-/// does the actual transformation in Planar space
-int transformPlanar_orc(struct _VSTransformData* td, VSTransform t);
-
 
 /* forward deklarations, please see .c file for documentation*/
 void interpolateBiLinBorder(uint8_t *rv, fp16 x, fp16 y,
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 6812916..84a98dc 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -17,13 +17,6 @@ if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
 endif()
 
 add_definitions(-Wall -Wno-pointer-sign -DTESTING -std=gnu99)
-find_package(Orc)
-if(ORC_FOUND)
-add_definitions( -DUSE_ORC ${ORC_DEFINITIONS})
-include_directories( ${ORC_INCLUDE_DIRS} )
-else()
-add_definitions( -DDISABLE_ORC)
-endif()
 
 if(SSE2_FOUND)
 add_definitions( -DUSE_SSE2 -msse2 -ffast-math -fno-show-column ) # -DUSE_SSE2_ASM
@@ -40,12 +33,9 @@ add_executable (tests tests.c testutils.c testframework.c ../src/vsvector.c
   ../src/transform.c ../src/transformfloat.c ../src/transformfixedpoint.c
   ../src/libvidstab.c ../src/transformtype.c ../src/frameinfo.c
   ../src/serialize.c ../src/localmotion2transform.c
-  ../src/motiondetect.c ../src/motiondetect_opt.c ../src/orc/motiondetectorc.c ../src/boxblur.c)
+  ../src/motiondetect.c ../src/motiondetect_opt.c ../src/boxblur.c)
 
 target_link_libraries(tests m)
-if(ORC_FOUND)
-target_link_libraries(tests ${ORC_LIBRARIES})
-endif()
 if(USE_OMP)
 target_link_libraries(tests gomp)
 endif()
diff --git a/tests/orc_bug/CMakeLists.txt b/tests/orc_bug/CMakeLists.txt
deleted file mode 100644
index 71e35f5..0000000
--- a/tests/orc_bug/CMakeLists.txt
+++ /dev/null
@@ -1,15 +0,0 @@
-cmake_minimum_required (VERSION 2.6) 
-project (vid.stab.test) 
-
-SET(CMAKE_BUILTTYPE None)
-set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/")
-
-find_package(Orc REQUIRED) 
-
-add_definitions(  -Wall -O0 -g  -DTESTING ${ORC_DEFINITIONS})
-include_directories (${ORC_INCLUDE_DIRS}) 
-
-add_executable (orc_bug orc_bug.c orc_bug_orc.c )
-
-target_link_libraries(orc_bug m ${ORC_LIBRARIES}) #link the math library
- 
diff --git a/tests/orc_bug/FindOrc.cmake b/tests/orc_bug/FindOrc.cmake
deleted file mode 100644
index 117fd34..0000000
--- a/tests/orc_bug/FindOrc.cmake
+++ /dev/null
@@ -1,29 +0,0 @@
-# find ORC
-# - Try to find LibOrc-0.4
-# Once done this will define
-#  ORC_FOUND - System has LibOrc
-#  ORC_INCLUDE_DIRS - The LibOrc include directories
-#  ORC_LIBRARIES - The libraries needed to use LibOrc
-#  ORC_DEFINITIONS - Compiler switches required for using LibOrc
-
-find_package(PkgConfig) 
-pkg_check_modules(PC_ORC orc-0.4)
-set(ORC_DEFINITIONS ${PC_ORC_CFLAGS_OTHER})
-
-find_path(ORC_INCLUDE_DIR orc/orc.h
-          HINTS ${PC_ORC_INCLUDEDIR} ${PC_ORC_INCLUDE_DIRS}
-          PATH_SUFFIXES orc)
-
-find_library(ORC_LIBRARY NAMES orc-0.4
-             HINTS ${PC_ORC_LIBDIR} ${PC_ORC_LIBRARY_DIRS} )
-
-set(ORC_LIBRARIES ${ORC_LIBRARY} )
-set(ORC_INCLUDE_DIRS ${ORC_INCLUDE_DIR} )
-include(FindPackageHandleStandardArgs)
-# handle the QUIETLY and REQUIRED arguments and set ORC_FOUND to TRUE
-# if all listed variables are TRUE
-find_package_handle_standard_args(LibOrc  DEFAULT_MSG
-                                  ORC_LIBRARY ORC_INCLUDE_DIR)
-
-mark_as_advanced(ORC_INCLUDE_DIR ORC_LIBRARY )
-# End find ORC
diff --git a/tests/orc_bug/orc_bug.c b/tests/orc_bug/orc_bug.c
deleted file mode 100644
index d529fd2..0000000
--- a/tests/orc_bug/orc_bug.c
+++ /dev/null
@@ -1,31 +0,0 @@
-#include <stdint.h>
-#include <math.h>
-#include <stdlib.h>
-#include "orc_bug_orc.h"
-
-// cd ../ && orcc --implementation -o orc_bug_orc.c orc_bug_orc.orc && orcc --header -o orc_bug_orc.h orc_bug_orc.orc ; cd cmake
-
-int main(){
-  int x;
-  int N = 512;
-
-  // some random parameters
-  int32_t zcos_a = 12345;
-  int32_t zsin_a = 65432;
-  int32_t c_tx   = 250;
-  int32_t c_ty   = 6;
-  int32_t c_d_x  = 256;
-  int32_t y_d1 = 100;
-
-  int32_t* x_ss = (int32_t*)malloc(sizeof(int32_t)*N);
-  int32_t* y_ss = (int32_t*)malloc(sizeof(int32_t)*N);
-  int32_t* xs   = (int32_t*)malloc(sizeof(int32_t)*N);
-  for (x = 0; x < N; x++) {
-    xs[x]=x;
-  }
-
-  test_orc (x_ss, y_ss, xs,
-      y_d1, c_d_x, c_tx, c_ty, zcos_a, zsin_a, N);
-
-  return 0;
-}
diff --git a/tests/orc_bug/orc_bug_orc.c b/tests/orc_bug/orc_bug_orc.c
deleted file mode 100644
index e77c7db..0000000
--- a/tests/orc_bug/orc_bug_orc.c
+++ /dev/null
@@ -1,314 +0,0 @@
-
-/* autogenerated from orc_bug_orc.orc */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#ifndef _ORC_INTEGER_TYPEDEFS_
-#define _ORC_INTEGER_TYPEDEFS_
-#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
-#include <stdint.h>
-typedef int8_t orc_int8;
-typedef int16_t orc_int16;
-typedef int32_t orc_int32;
-typedef int64_t orc_int64;
-typedef uint8_t orc_uint8;
-typedef uint16_t orc_uint16;
-typedef uint32_t orc_uint32;
-typedef uint64_t orc_uint64;
-#define ORC_UINT64_C(x) UINT64_C(x)
-#elif defined(_MSC_VER)
-typedef signed __int8 orc_int8;
-typedef signed __int16 orc_int16;
-typedef signed __int32 orc_int32;
-typedef signed __int64 orc_int64;
-typedef unsigned __int8 orc_uint8;
-typedef unsigned __int16 orc_uint16;
-typedef unsigned __int32 orc_uint32;
-typedef unsigned __int64 orc_uint64;
-#define ORC_UINT64_C(x) (x##Ui64)
-#define inline __inline
-#else
-#include <limits.h>
-typedef signed char orc_int8;
-typedef short orc_int16;
-typedef int orc_int32;
-typedef unsigned char orc_uint8;
-typedef unsigned short orc_uint16;
-typedef unsigned int orc_uint32;
-#if INT_MAX == LONG_MAX
-typedef long long orc_int64;
-typedef unsigned long long orc_uint64;
-#define ORC_UINT64_C(x) (x##ULL)
-#else
-typedef long orc_int64;
-typedef unsigned long orc_uint64;
-#define ORC_UINT64_C(x) (x##UL)
-#endif
-#endif
-typedef union { orc_int16 i; orc_int8 x2[2]; } orc_union16;
-typedef union { orc_int32 i; float f; orc_int16 x2[2]; orc_int8 x4[4]; } orc_union32;
-typedef union { orc_int64 i; double f; orc_int32 x2[2]; float x2f[2]; orc_int16 x4[4]; } orc_union64;
-#endif
-#ifndef ORC_RESTRICT
-#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
-#define ORC_RESTRICT restrict
-#elif defined(__GNUC__) && __GNUC__ >= 4
-#define ORC_RESTRICT __restrict__
-#else
-#define ORC_RESTRICT
-#endif
-#endif
-
-#ifndef DISABLE_ORC
-#include <orc/orc.h>
-#endif
-void test_orc (orc_int32 * ORC_RESTRICT d1, orc_int32 * ORC_RESTRICT d2, const orc_int32 * ORC_RESTRICT s1, int p1, int p2, int p3, int p4, int p5, int p6, int n);
-
-
-/* begin Orc C target preamble */
-#define ORC_CLAMP(x,a,b) ((x)<(a) ? (a) : ((x)>(b) ? (b) : (x)))
-#define ORC_ABS(a) ((a)<0 ? -(a) : (a))
-#define ORC_MIN(a,b) ((a)<(b) ? (a) : (b))
-#define ORC_MAX(a,b) ((a)>(b) ? (a) : (b))
-#define ORC_SB_MAX 127
-#define ORC_SB_MIN (-1-ORC_SB_MAX)
-#define ORC_UB_MAX 255
-#define ORC_UB_MIN 0
-#define ORC_SW_MAX 32767
-#define ORC_SW_MIN (-1-ORC_SW_MAX)
-#define ORC_UW_MAX 65535
-#define ORC_UW_MIN 0
-#define ORC_SL_MAX 2147483647
-#define ORC_SL_MIN (-1-ORC_SL_MAX)
-#define ORC_UL_MAX 4294967295U
-#define ORC_UL_MIN 0
-#define ORC_CLAMP_SB(x) ORC_CLAMP(x,ORC_SB_MIN,ORC_SB_MAX)
-#define ORC_CLAMP_UB(x) ORC_CLAMP(x,ORC_UB_MIN,ORC_UB_MAX)
-#define ORC_CLAMP_SW(x) ORC_CLAMP(x,ORC_SW_MIN,ORC_SW_MAX)
-#define ORC_CLAMP_UW(x) ORC_CLAMP(x,ORC_UW_MIN,ORC_UW_MAX)
-#define ORC_CLAMP_SL(x) ORC_CLAMP(x,ORC_SL_MIN,ORC_SL_MAX)
-#define ORC_CLAMP_UL(x) ORC_CLAMP(x,ORC_UL_MIN,ORC_UL_MAX)
-#define ORC_SWAP_W(x) ((((x)&0xff)<<8) | (((x)&0xff00)>>8))
-#define ORC_SWAP_L(x) ((((x)&0xff)<<24) | (((x)&0xff00)<<8) | (((x)&0xff0000)>>8) | (((x)&0xff000000)>>24))
-#define ORC_SWAP_Q(x) ((((x)&ORC_UINT64_C(0xff))<<56) | (((x)&ORC_UINT64_C(0xff00))<<40) | (((x)&ORC_UINT64_C(0xff0000))<<24) | (((x)&ORC_UINT64_C(0xff000000))<<8) | (((x)&ORC_UINT64_C(0xff00000000))>>8) | (((x)&ORC_UINT64_C(0xff0000000000))>>24) | (((x)&ORC_UINT64_C(0xff000000000000))>>40) | (((x)&ORC_UINT64_C(0xff00000000000000))>>56))
-#define ORC_PTR_OFFSET(ptr,offset) ((void *)(((unsigned char *)(ptr)) + (offset)))
-#define ORC_DENORMAL(x) ((x) & ((((x)&0x7f800000) == 0) ? 0xff800000 : 0xffffffff))
-#define ORC_ISNAN(x) ((((x)&0x7f800000) == 0x7f800000) && (((x)&0x007fffff) != 0))
-#define ORC_DENORMAL_DOUBLE(x) ((x) & ((((x)&ORC_UINT64_C(0x7ff0000000000000)) == 0) ? ORC_UINT64_C(0xfff0000000000000) : ORC_UINT64_C(0xffffffffffffffff)))
-#define ORC_ISNAN_DOUBLE(x) ((((x)&ORC_UINT64_C(0x7ff0000000000000)) == ORC_UINT64_C(0x7ff0000000000000)) && (((x)&ORC_UINT64_C(0x000fffffffffffff)) != 0))
-#ifndef ORC_RESTRICT
-#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
-#define ORC_RESTRICT restrict
-#elif defined(__GNUC__) && __GNUC__ >= 4
-#define ORC_RESTRICT __restrict__
-#else
-#define ORC_RESTRICT
-#endif
-#endif
-/* end Orc C target preamble */
-
-
-
-/* test_orc */
-#ifdef DISABLE_ORC
-void
-test_orc (orc_int32 * ORC_RESTRICT d1, orc_int32 * ORC_RESTRICT d2, const orc_int32 * ORC_RESTRICT s1, int p1, int p2, int p3, int p4, int p5, int p6, int n){
-  int i;
-  orc_union32 * ORC_RESTRICT ptr0;
-  orc_union32 * ORC_RESTRICT ptr1;
-  const orc_union32 * ORC_RESTRICT ptr4;
-  orc_union32 var35;
-  orc_union32 var36;
-  orc_union32 var37;
-  orc_union32 var38;
-  orc_union32 var39;
-  orc_union32 var40;
-  orc_union32 var41;
-  orc_union32 var42;
-  orc_union32 var43;
-  orc_union32 var44;
-  orc_union32 var45;
-  orc_union32 var46;
-  orc_union32 var47;
-  orc_union32 var48;
-  orc_union32 var49;
-
-  ptr0 = (orc_union32 *)d1;
-  ptr1 = (orc_union32 *)d2;
-  ptr4 = (orc_union32 *)s1;
-
-    /* 1: loadpl */
-    var36.i = p2;
-    /* 3: loadpl */
-    var37.i = p5;
-    /* 5: loadpl */
-    var38.i = p6;
-    /* 6: loadpl */
-    var39.i = p1;
-    /* 9: loadpl */
-    var40.i = p3;
-    /* 12: loadpl */
-    var42.i = p6;
-    /* 14: loadpl */
-    var43.i = p4;
-
-  for (i = 0; i < n; i++) {
-    /* 0: loadl */
-    var35 = ptr4[i];
-    /* 2: subl */
-    var45.i = var35.i - var36.i;
-    /* 4: mulll */
-    var46.i = (var37.i * var45.i) & 0xffffffff;
-    /* 7: mulll */
-    var47.i = (var38.i * var39.i) & 0xffffffff;
-    /* 8: addl */
-    var48.i = var46.i + var47.i;
-    /* 10: addl */
-    var41.i = var48.i + var40.i;
-    /* 11: storel */
-    ptr0[i] = var41;
-    /* 13: mulll */
-    var49.i = (var45.i * var42.i) & 0xffffffff;
-    /* 15: addl */
-    var44.i = var49.i + var43.i;
-    /* 16: storel */
-    ptr1[i] = var44;
-  }
-
-}
-
-#else
-static void
-_backup_test_orc (OrcExecutor * ORC_RESTRICT ex)
-{
-  int i;
-  int n = ex->n;
-  orc_union32 * ORC_RESTRICT ptr0;
-  orc_union32 * ORC_RESTRICT ptr1;
-  const orc_union32 * ORC_RESTRICT ptr4;
-  orc_union32 var35;
-  orc_union32 var36;
-  orc_union32 var37;
-  orc_union32 var38;
-  orc_union32 var39;
-  orc_union32 var40;
-  orc_union32 var41;
-  orc_union32 var42;
-  orc_union32 var43;
-  orc_union32 var44;
-  orc_union32 var45;
-  orc_union32 var46;
-  orc_union32 var47;
-  orc_union32 var48;
-  orc_union32 var49;
-
-  ptr0 = (orc_union32 *)ex->arrays[0];
-  ptr1 = (orc_union32 *)ex->arrays[1];
-  ptr4 = (orc_union32 *)ex->arrays[4];
-
-    /* 1: loadpl */
-    var36.i = ex->params[25];
-    /* 3: loadpl */
-    var37.i = ex->params[28];
-    /* 5: loadpl */
-    var38.i = ex->params[29];
-    /* 6: loadpl */
-    var39.i = ex->params[24];
-    /* 9: loadpl */
-    var40.i = ex->params[26];
-    /* 12: loadpl */
-    var42.i = ex->params[29];
-    /* 14: loadpl */
-    var43.i = ex->params[27];
-
-  for (i = 0; i < n; i++) {
-    /* 0: loadl */
-    var35 = ptr4[i];
-    /* 2: subl */
-    var45.i = var35.i - var36.i;
-    /* 4: mulll */
-    var46.i = (var37.i * var45.i) & 0xffffffff;
-    /* 7: mulll */
-    var47.i = (var38.i * var39.i) & 0xffffffff;
-    /* 8: addl */
-    var48.i = var46.i + var47.i;
-    /* 10: addl */
-    var41.i = var48.i + var40.i;
-    /* 11: storel */
-    ptr0[i] = var41;
-    /* 13: mulll */
-    var49.i = (var45.i * var42.i) & 0xffffffff;
-    /* 15: addl */
-    var44.i = var49.i + var43.i;
-    /* 16: storel */
-    ptr1[i] = var44;
-  }
-
-}
-
-void
-test_orc (orc_int32 * ORC_RESTRICT d1, orc_int32 * ORC_RESTRICT d2, const orc_int32 * ORC_RESTRICT s1, int p1, int p2, int p3, int p4, int p5, int p6, int n)
-{
-  OrcExecutor _ex, *ex = &_ex;
-  static int p_inited = 0;
-  static OrcCode *c = 0;
-  void (*func) (OrcExecutor *);
-
-  if (!p_inited) {
-    orc_once_mutex_lock ();
-    if (!p_inited) {
-      OrcProgram *p;
-
-      p = orc_program_new ();
-      orc_program_set_name (p, "test_orc");
-      orc_program_set_backup_function (p, _backup_test_orc);
-      orc_program_add_destination (p, 4, "d1");
-      orc_program_add_destination (p, 4, "d2");
-      orc_program_add_source (p, 4, "s1");
-      orc_program_add_parameter (p, 4, "p1");
-      orc_program_add_parameter (p, 4, "p2");
-      orc_program_add_parameter (p, 4, "p3");
-      orc_program_add_parameter (p, 4, "p4");
-      orc_program_add_parameter (p, 4, "p5");
-      orc_program_add_parameter (p, 4, "p6");
-      orc_program_add_temporary (p, 4, "t1");
-      orc_program_add_temporary (p, 4, "t2");
-      orc_program_add_temporary (p, 4, "t3");
-
-      orc_program_append_2 (p, "subl", 0, ORC_VAR_T1, ORC_VAR_S1, ORC_VAR_P2, ORC_VAR_D1);
-      orc_program_append_2 (p, "mulll", 0, ORC_VAR_T2, ORC_VAR_P5, ORC_VAR_T1, ORC_VAR_D1);
-      orc_program_append_2 (p, "mulll", 0, ORC_VAR_T3, ORC_VAR_P6, ORC_VAR_P1, ORC_VAR_D1);
-      orc_program_append_2 (p, "addl", 0, ORC_VAR_T2, ORC_VAR_T2, ORC_VAR_T3, ORC_VAR_D1);
-      orc_program_append_2 (p, "addl", 0, ORC_VAR_D1, ORC_VAR_T2, ORC_VAR_P3, ORC_VAR_D1);
-      orc_program_append_2 (p, "mulll", 0, ORC_VAR_T2, ORC_VAR_T1, ORC_VAR_P6, ORC_VAR_D1);
-      orc_program_append_2 (p, "addl", 0, ORC_VAR_D2, ORC_VAR_T2, ORC_VAR_P4, ORC_VAR_D1);
-
-      orc_program_compile (p);
-      c = orc_program_take_code (p);
-      orc_program_free (p);
-    }
-    p_inited = TRUE;
-    orc_once_mutex_unlock ();
-  }
-  ex->arrays[ORC_VAR_A2] = c;
-  ex->program = 0;
-
-  ex->n = n;
-  ex->arrays[ORC_VAR_D1] = d1;
-  ex->arrays[ORC_VAR_D2] = d2;
-  ex->arrays[ORC_VAR_S1] = (void *)s1;
-  ex->params[ORC_VAR_P1] = p1;
-  ex->params[ORC_VAR_P2] = p2;
-  ex->params[ORC_VAR_P3] = p3;
-  ex->params[ORC_VAR_P4] = p4;
-  ex->params[ORC_VAR_P5] = p5;
-  ex->params[ORC_VAR_P6] = p6;
-
-  func = c->exec;
-  func (ex);
-}
-#endif
-
-
diff --git a/tests/orc_bug/orc_bug_orc.h b/tests/orc_bug/orc_bug_orc.h
deleted file mode 100644
index 2d5fc25..0000000
--- a/tests/orc_bug/orc_bug_orc.h
+++ /dev/null
@@ -1,76 +0,0 @@
-
-/* autogenerated from orc_bug_orc.orc */
-
-#ifndef _ORC_BUG_ORC_H_
-#define _ORC_BUG_ORC_H_
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-
-#ifndef _ORC_INTEGER_TYPEDEFS_
-#define _ORC_INTEGER_TYPEDEFS_
-#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
-#include <stdint.h>
-typedef int8_t orc_int8;
-typedef int16_t orc_int16;
-typedef int32_t orc_int32;
-typedef int64_t orc_int64;
-typedef uint8_t orc_uint8;
-typedef uint16_t orc_uint16;
-typedef uint32_t orc_uint32;
-typedef uint64_t orc_uint64;
-#define ORC_UINT64_C(x) UINT64_C(x)
-#elif defined(_MSC_VER)
-typedef signed __int8 orc_int8;
-typedef signed __int16 orc_int16;
-typedef signed __int32 orc_int32;
-typedef signed __int64 orc_int64;
-typedef unsigned __int8 orc_uint8;
-typedef unsigned __int16 orc_uint16;
-typedef unsigned __int32 orc_uint32;
-typedef unsigned __int64 orc_uint64;
-#define ORC_UINT64_C(x) (x##Ui64)
-#define inline __inline
-#else
-#include <limits.h>
-typedef signed char orc_int8;
-typedef short orc_int16;
-typedef int orc_int32;
-typedef unsigned char orc_uint8;
-typedef unsigned short orc_uint16;
-typedef unsigned int orc_uint32;
-#if INT_MAX == LONG_MAX
-typedef long long orc_int64;
-typedef unsigned long long orc_uint64;
-#define ORC_UINT64_C(x) (x##ULL)
-#else
-typedef long orc_int64;
-typedef unsigned long orc_uint64;
-#define ORC_UINT64_C(x) (x##UL)
-#endif
-#endif
-typedef union { orc_int16 i; orc_int8 x2[2]; } orc_union16;
-typedef union { orc_int32 i; float f; orc_int16 x2[2]; orc_int8 x4[4]; } orc_union32;
-typedef union { orc_int64 i; double f; orc_int32 x2[2]; float x2f[2]; orc_int16 x4[4]; } orc_union64;
-#endif
-#ifndef ORC_RESTRICT
-#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
-#define ORC_RESTRICT restrict
-#elif defined(__GNUC__) && __GNUC__ >= 4
-#define ORC_RESTRICT __restrict__
-#else
-#define ORC_RESTRICT
-#endif
-#endif
-void test_orc (orc_int32 * ORC_RESTRICT d1, orc_int32 * ORC_RESTRICT d2, const orc_int32 * ORC_RESTRICT s1, int p1, int p2, int p3, int p4, int p5, int p6, int n);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
-
diff --git a/tests/orc_bug/orc_bug_orc.orc b/tests/orc_bug/orc_bug_orc.orc
deleted file mode 100644
index 1cd7337..0000000
--- a/tests/orc_bug/orc_bug_orc.orc
+++ /dev/null
@@ -1,20 +0,0 @@
-.function test_orc
-.dest 4 x_ss int32_t    
-.dest 4 y_ss int32_t    
-.source 4 xs int32_t
-.param 4 y_d1 int32_t
-.param 4 c_d_x int32_t
-.param 4 c_tx int32_t   
-.param 4 c_ty int32_t   
-.param 4 zcos_a int32_t 
-.param 4 zsin_a int32_t 
-.temp 4 x_d1
-.temp 4 tmp1
-.temp 4 tmp2
-subl x_d1, xs, c_d_x
-mulll tmp1 zcos_a x_d1
-mulll tmp2 zsin_a y_d1
-addl tmp1 tmp1 tmp2
-addl x_ss tmp1 c_tx
-mulll tmp1, x_d1, zsin_a # with this line I get a segfault
-addl y_ss, tmp1, c_ty
diff --git a/tests/test_compareimg.c b/tests/test_compareimg.c
index 08e0379..3d1b9c6 100644
--- a/tests/test_compareimg.c
+++ b/tests/test_compareimg.c
@@ -78,16 +78,6 @@ void test_compareImg_performance(const TestData* testdata){
   timeC=runcompare(compareSubImg_thr, testdata->frames[0], testdata->frames[1],
                    f, testdata->fi, diffsC, 0, numruns);
   fprintf(stderr,"***C        time for %i runs: %i ms ****\n", numruns, timeC);
-#ifdef USE_ORC
-  timeO=runcompare(compareSubImg_orc, testdata->frames[0], testdata->frames[1],
-                   f, testdata->fi, diffsO, diffsC, numruns);
-  fprintf(stderr,"***orc      time for %i runs: %i ms \tSpeedup %3.2f\n",
-          numruns, timeO, (double)timeC/timeO);
-  timeO=runcompare(compareSubImg_thr_orc, testdata->frames[0], testdata->frames[1],
-                   f, testdata->fi, diffsO, diffsC, numruns);
-  fprintf(stderr,"***thr_orc  time for %i runs: %i ms \tSpeedup %3.2f\n",
-          numruns, timeO, (double)timeC/timeO);
-#endif
 #ifdef USE_SSE2
   timeO=runcompare(compareSubImg_thr_sse2, testdata->frames[0], testdata->frames[1],
                    f, testdata->fi, diffsO, diffsC, numruns);
diff --git a/tests/test_contrast.c b/tests/test_contrast.c
index 668e759..68d988a 100644
--- a/tests/test_contrast.c
+++ b/tests/test_contrast.c
@@ -13,36 +13,6 @@ void test_contrastImg(const TestData* testdata){
   double contrastC[numruns];
   double contrastOpt[numruns];
   int timeC, timeOpt;
-#ifdef USE_ORC
-  fprintf(stderr,"********** Variance - based Contrast (with ORC):\n");
-  {
-    int start = timeOfDayinMS();
-    for(i=0; i<numruns; i++){
-      contrastC[i]=contrastSubImg_variance_C(testdata->frames[0],
-                                             &f, testdata->fi.width, testdata->fi.height);
-    }
-    int end = timeOfDayinMS();
-    timeC=end-start;
-    fprintf(stderr,"***C    time for %i runs: %i ms ****\n", numruns, timeC);
-  }
-  {
-    int start = timeOfDayinMS();
-    for(i=0; i<numruns; i++){
-      contrastOpt[i]=contrastSubImg_variance_orc(testdata->frames[0],
-                                                 &f, testdata->fi.width, testdata->fi.height);
-    }
-    int end = timeOfDayinMS();
-    timeOpt=end-start;
-    fprintf(stderr,"***Orc  time for %i runs: %i ms ****\n", numruns, timeOpt);
-  }
-  fprintf(stderr,"***Speedup %3.2f\n", timeC/timeOpt);
-  for(i=0; i<numruns; i++){
-    if(i==0){
-      printf("Orc contrast %3.2f, C contrast %3.2f\n",contrastOpt[i], contrastC[i]);
-    }
-    test_bool(contrastC[i]==contrastOpt[i]);
-  }
-#endif
   fprintf(stderr,"********** Michelson Contrast (with SSE2):\n");
   {
     int start = timeOfDayinMS();
diff --git a/tests/test_transform.c b/tests/test_transform.c
index a3e60d5..4a8ee6f 100644
--- a/tests/test_transform.c
+++ b/tests/test_transform.c
@@ -85,7 +85,7 @@ void test_transform_performance(const TestData* testdata){
   VSFrame cfinal;
   int it;
   int start, numruns;
-  int timeC, timeCFP; //, timeOrc;
+  int timeC, timeCFP;
   vsFrameAllocate(&dest, &testdata->fi);
   vsFrameAllocate(&cfinal, &testdata->fi);
   numruns = 5;
diff --git a/transcode/CMakeLists.txt b/transcode/CMakeLists.txt
index 60f69af..3d4a129 100644
--- a/transcode/CMakeLists.txt
+++ b/transcode/CMakeLists.txt
@@ -12,15 +12,6 @@ if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
 endif()
 
 add_definitions(-Wall -Wno-pointer-sign -DTRANSCODE -std=gnu99)
-# I tried it with 0.4.14
-#  0.4.10 did not work (not all opcode implemented)
-# find_package(Orc)  // it actually not used by any active code
-if(ORC_FOUND)
-add_definitions( -DUSE_ORC ${ORC_DEFINITIONS} )
-include_directories( ${ORC_INCLUDE_DIRS} )
-else()
-add_definitions( -DDISABLE_ORC )
-endif()
 
 # here we should check for SSE2
 # our  -DUSE_SSE2_ASM code does not work with fpic
@@ -35,14 +26,14 @@ include_directories (../src ${TRANSCODE_ROOT}/src ${TRANSCODE_ROOT}/ )
 add_library (filter_transform SHARED filter_transform.c
   ../src/transformtype.c ../src/libvidstab.c ../src/transform.c
   ../src/transformfixedpoint.c  ../src/vsvector.c ../src/serialize.c ../src/frameinfo.c
-	../src/localmotion2transform.c) #  orc/transformorc.c)
+	../src/localmotion2transform.c)
 add_library (filter_stabilize SHARED filter_stabilize.c
   ../src/transformtype.c ../src/libvidstab.c ../src/motiondetect.c
-	../src/orc/motiondetectorc.c ../src/motiondetect_opt.c ../src/localmotion2transform.c
+	../src/motiondetect_opt.c ../src/localmotion2transform.c
   ../src/boxblur.c ../src/vsvector.c ../src/serialize.c  ../src/frameinfo.c)
 add_library (filter_deshake SHARED filter_deshake.c
   ../src/transformtype.c ../src/libvidstab.c ../src/motiondetect.c
-  ../src/orc/motiondetectorc.c ../src/boxblur.c ../src/transform.c ../src/motiondetect_opt.c
+  ../src/boxblur.c ../src/transform.c ../src/motiondetect_opt.c
   ../src/transformfixedpoint.c ../src/vsvector.c ../src/serialize.c ../src/frameinfo.c
 	../src/localmotion2transform.c)
 
@@ -55,11 +46,6 @@ target_link_libraries(filter_stabilize m )
 target_link_libraries(filter_transform m )
 target_link_libraries(filter_deshake   m )
 
-if(ORC_FOUND)
-target_link_libraries(filter_stabilize ${ORC_LIBRARIES} )
-target_link_libraries(filter_transform ${ORC_LIBRARIES} )
-target_link_libraries(filter_deshake   ${ORC_LIBRARIES} )
-endif()
 if(USE_OMP)
 target_link_libraries(filter_stabilize gomp )
 target_link_libraries(filter_transform gomp )