avfilter/vf_v360: x86 SIMD for interpolations

1 files changed, 113 insertions, 0 deletions

diff --git a/libavfilter/v360.h b/libavfilter/v360.h
new file mode 100644
index 0000000000..a0eefdec16
--- /dev/null
+++ b/libavfilter/v360.h
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2019 Eugene Lyapustin
+ *
+ * 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_V360_H
+#define AVFILTER_V360_H
+#include "avfilter.h"
+
+enum Projections {
+    EQUIRECTANGULAR,
+    CUBEMAP_3_2,
+    CUBEMAP_6_1,
+    EQUIANGULAR,
+    FLAT,
+    DUAL_FISHEYE,
+    BARREL,
+    CUBEMAP_1_6,
+    NB_PROJECTIONS,
+};
+
+enum InterpMethod {
+    NEAREST,
+    BILINEAR,
+    BICUBIC,
+    LANCZOS,
+    NB_INTERP_METHODS,
+};
+
+enum Faces {
+    TOP_LEFT,
+    TOP_MIDDLE,
+    TOP_RIGHT,
+    BOTTOM_LEFT,
+    BOTTOM_MIDDLE,
+    BOTTOM_RIGHT,
+    NB_FACES,
+};
+
+enum Direction {
+    RIGHT,  ///< Axis +X
+    LEFT,   ///< Axis -X
+    UP,     ///< Axis +Y
+    DOWN,   ///< Axis -Y
+    FRONT,  ///< Axis -Z
+    BACK,   ///< Axis +Z
+    NB_DIRECTIONS,
+};
+
+enum Rotation {
+    ROT_0,
+    ROT_90,
+    ROT_180,
+    ROT_270,
+    NB_ROTATIONS,
+};
+
+typedef struct V360Context {
+    const AVClass *class;
+    int in, out;
+    int interp;
+    int width, height;
+    char* in_forder;
+    char* out_forder;
+    char* in_frot;
+    char* out_frot;
+
+    int in_cubemap_face_order[6];
+    int out_cubemap_direction_order[6];
+    int in_cubemap_face_rotation[6];
+    int out_cubemap_face_rotation[6];
+
+    float in_pad, out_pad;
+
+    float yaw, pitch, roll;
+
+    int h_flip, v_flip, d_flip;
+
+    float h_fov, v_fov;
+    float flat_range[3];
+
+    int planewidth[4], planeheight[4];
+    int inplanewidth[4], inplaneheight[4];
+    int nb_planes;
+
+    uint16_t *u[4], *v[4];
+    int16_t *ker[4];
+
+    int (*remap_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
+
+    void (*remap_line)(uint8_t *dst, int width, const uint8_t *src, ptrdiff_t in_linesize,
+                       const uint16_t *u, const uint16_t *v, const int16_t *ker);
+} V360Context;
+
+void ff_v360_init(V360Context *s, int depth);
+void ff_v360_init_x86(V360Context *s, int depth);
+
+#endif /* AVFILTER_V360_H */