Libmv: Replace region tracker with autotracker in Blender

The title actually tells it all, this commit switches Blender to use the new
autotrack API from Libmv.

From the user point of view it means that prediction model is now used when
tracking which gives really nice results.

All the other changes are not really visible for users, those are just frame
accessors, caches and so for the new API.

1 files changed, 28 insertions, 0 deletions

diff --git a/source/blender/blenkernel/tracking_private.h b/source/blender/blenkernel/tracking_private.h
index 6efa1533e3e..591ee4d0d01 100644
--- a/source/blender/blenkernel/tracking_private.h
+++ b/source/blender/blenkernel/tracking_private.h
@@ -95,4 +95,32 @@ void tracking_cameraIntrinscisOptionsFromTracking(struct MovieTracking *tracking
 void tracking_trackingCameraFromIntrinscisOptions(struct MovieTracking *tracking,
                                                   const struct libmv_CameraIntrinsicsOptions *camera_intrinsics_options);
 
+struct libmv_TrackRegionOptions;
+
+void tracking_configure_tracker(const MovieTrackingTrack *track, float *mask,
+                                struct libmv_TrackRegionOptions *options);
+
+struct MovieTrackingMarker *tracking_get_keyframed_marker(
+	struct MovieTrackingTrack *track,
+	int current_frame,
+	bool backwards);
+
+/*********************** Frame accessr *************************/
+
+struct libmv_FrameAccessor;
+
+#define MAX_ACCESSOR_CLIP 64
+typedef struct TrackingImageAccessor {
+	struct MovieCache *cache;
+	struct MovieClip *clips[MAX_ACCESSOR_CLIP];
+	int num_clips;
+	int start_frame;
+	struct libmv_FrameAccessor *libmv_accessor;
+} TrackingImageAccessor;
+
+TrackingImageAccessor *tracking_image_accessor_new(MovieClip *clips[MAX_ACCESSOR_CLIP],
+                                                   int num_clips,
+                                                   int start_frame);
+void tracking_image_accessor_destroy(TrackingImageAccessor *accessor);
+
 #endif  /* __TRACKING_PRIVATE_H__ */