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diff --git a/extern/libmv/intern/camera_intrinsics.h b/extern/libmv/intern/camera_intrinsics.h
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+++ b/extern/libmv/intern/camera_intrinsics.h
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+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2011 Blender Foundation.
+ * All rights reserved.
+ *
+ * Contributor(s): Blender Foundation,
+ *                 Sergey Sharybin
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#ifndef LIBMV_C_API_CAMERA_INTRINSICS_H_
+#define LIBMV_C_API_CAMERA_INTRINSICS_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct libmv_CameraIntrinsics libmv_CameraIntrinsics;
+
+enum {
+  LIBMV_DISTORTION_MODEL_POLYNOMIAL = 0,
+  LIBMV_DISTORTION_MODEL_DIVISION = 1,
+};
+
+typedef struct libmv_CameraIntrinsicsOptions {
+  // Common settings of all distortion models.
+  int distortion_model;
+  int image_width, image_height;
+  double focal_length;
+  double principal_point_x, principal_point_y;
+
+  // Radial distortion model.
+  double polynomial_k1, polynomial_k2, polynomial_k3;
+  double polynomial_p1, polynomial_p2;
+
+  // Division distortion model.
+  double division_k1, division_k2;
+} libmv_CameraIntrinsicsOptions;
+
+libmv_CameraIntrinsics *libmv_cameraIntrinsicsNew(
+    const libmv_CameraIntrinsicsOptions* libmv_camera_intrinsics_options);
+
+libmv_CameraIntrinsics *libmv_cameraIntrinsicsCopy(
+    const libmv_CameraIntrinsics* libmv_intrinsics);
+
+void libmv_cameraIntrinsicsDestroy(libmv_CameraIntrinsics* libmv_intrinsics);
+void libmv_cameraIntrinsicsUpdate(
+    const libmv_CameraIntrinsicsOptions* libmv_camera_intrinsics_options,
+    libmv_CameraIntrinsics* libmv_intrinsics);
+
+void libmv_cameraIntrinsicsSetThreads(libmv_CameraIntrinsics* libmv_intrinsics,
+                                      int threads);
+
+void libmv_cameraIntrinsicsExtractOptions(
+    const libmv_CameraIntrinsics* libmv_intrinsics,
+    libmv_CameraIntrinsicsOptions* camera_intrinsics_options);
+
+void libmv_cameraIntrinsicsUndistortByte(
+    const libmv_CameraIntrinsics* libmv_intrinsics,
+    const unsigned char *source_image,
+    int width,
+    int height,
+    float overscan,
+    int channels,
+    unsigned char* destination_image);
+
+void libmv_cameraIntrinsicsUndistortFloat(
+    const libmv_CameraIntrinsics* libmv_intrinsics,
+    const float* source_image,
+    int width,
+    int height,
+    float overscan,
+    int channels,
+    float* destination_image);
+
+void libmv_cameraIntrinsicsDistortByte(
+    const struct libmv_CameraIntrinsics* libmv_intrinsics,
+    const unsigned char *source_image,
+    int width,
+    int height,
+    float overscan,
+    int channels,
+    unsigned char *destination_image);
+
+void libmv_cameraIntrinsicsDistortFloat(
+    const libmv_CameraIntrinsics* libmv_intrinsics,
+    float* source_image,
+    int width,
+    int height,
+    float overscan,
+    int channels,
+    float* destination_image);
+
+void libmv_cameraIntrinsicsApply(
+    const libmv_CameraIntrinsicsOptions* libmv_camera_intrinsics_options,
+    double x,
+    double y,
+    double* x1,
+    double* y1);
+
+void libmv_cameraIntrinsicsInvert(
+    const libmv_CameraIntrinsicsOptions* libmv_camera_intrinsics_options,
+    double x,
+    double y,
+    double* x1,
+    double* y1);
+
+#ifdef __cplusplus
+}
+#endif
+
+#ifdef __cplusplus
+
+namespace libmv {
+  class CameraIntrinsics;
+}
+
+libmv::CameraIntrinsics* libmv_cameraIntrinsicsCreateFromOptions(
+    const libmv_CameraIntrinsicsOptions* camera_intrinsics_options);
+#endif
+
+#endif  // LIBMV_C_API_CAMERA_INTRINSICS_H_