1 files changed, 107 insertions, 0 deletions
diff --git a/libavfilter/deshake.h b/libavfilter/deshake.h
new file mode 100644
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+++ b/libavfilter/deshake.h
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2013 Wei Gao <weigao@multicorewareinc.com>
+ * Copyright (C) 2013 Lenny Wang
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFILTER_DESHAKE_H
+#define AVFILTER_DESHAKE_H
+
+#include "config.h"
+#include "avfilter.h"
+#include "transform.h"
+#include "libavutil/pixelutils.h"
+#if CONFIG_OPENCL
+#include "libavutil/opencl.h"
+#endif
+
+
+enum SearchMethod {
+    EXHAUSTIVE,        ///< Search all possible positions
+    SMART_EXHAUSTIVE,  ///< Search most possible positions (faster)
+    SEARCH_COUNT
+};
+
+typedef struct {
+    int x;             ///< Horizontal shift
+    int y;             ///< Vertical shift
+} IntMotionVector;
+
+typedef struct {
+    double x;             ///< Horizontal shift
+    double y;             ///< Vertical shift
+} MotionVector;
+
+typedef struct {
+    MotionVector vec;     ///< Motion vector
+    double angle;         ///< Angle of rotation
+    double zoom;          ///< Zoom percentage
+} Transform;
+
+#if CONFIG_OPENCL
+
+typedef struct {
+    cl_command_queue command_queue;
+    cl_program program;
+    cl_kernel kernel_luma;
+    cl_kernel kernel_chroma;
+    int in_plane_size[8];
+    int out_plane_size[8];
+    int plane_num;
+    cl_mem cl_inbuf;
+    size_t cl_inbuf_size;
+    cl_mem cl_outbuf;
+    size_t cl_outbuf_size;
+} DeshakeOpenclContext;
+
+#endif
+
+#define MAX_R 64
+
+typedef struct {
+    const AVClass *class;
+    int counts[2*MAX_R+1][2*MAX_R+1]; /// < Scratch buffer for motion search
+    double *angles;            ///< Scratch buffer for block angles
+    unsigned angles_size;
+    AVFrame *ref;              ///< Previous frame
+    int rx;                    ///< Maximum horizontal shift
+    int ry;                    ///< Maximum vertical shift
+    int edge;                  ///< Edge fill method
+    int blocksize;             ///< Size of blocks to compare
+    int contrast;              ///< Contrast threshold
+    int search;                ///< Motion search method
+    av_pixelutils_sad_fn sad;  ///< Sum of the absolute difference function
+    Transform last;            ///< Transform from last frame
+    int refcount;              ///< Number of reference frames (defines averaging window)
+    FILE *fp;
+    Transform avg;
+    int cw;                    ///< Crop motion search to this box
+    int ch;
+    int cx;
+    int cy;
+    char *filename;            ///< Motion search detailed log filename
+    int opencl;
+#if CONFIG_OPENCL
+    DeshakeOpenclContext opencl_ctx;
+#endif
+    int (* transform)(AVFilterContext *ctx, int width, int height, int cw, int ch,
+                      const float *matrix_y, const float *matrix_uv, enum InterpolateMethod interpolate,
+                      enum FillMethod fill, AVFrame *in, AVFrame *out);
+} DeshakeContext;
+
+#endif /* AVFILTER_DESHAKE_H */