avfilter: add hflip x86 SIMD

Signed-off-by: Paul B Mahol <onemda@gmail.com>

1 files changed, 38 insertions, 0 deletions

diff --git a/libavfilter/hflip.h b/libavfilter/hflip.h
new file mode 100644
index 0000000000..cbe1fb3d8c
--- /dev/null
+++ b/libavfilter/hflip.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2007 Benoit Fouet
+ * Copyright (c) 2010 Stefano Sabatini
+ *
+ * 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_HFLIP_H
+#define AVFILTER_HFLIP_H
+
+#include "avfilter.h"
+
+typedef struct FlipContext {
+    const AVClass *class;
+    int max_step[4];    ///< max pixel step for each plane, expressed as a number of bytes
+    int planewidth[4];  ///< width of each plane
+    int planeheight[4]; ///< height of each plane
+
+    void (*flip_line[4])(const uint8_t *src, uint8_t *dst, int w);
+} FlipContext;
+
+void ff_hflip_init_x86(FlipContext *s, int step[4], int nb_planes);
+
+#endif /* AVFILTER_HFLIP_H */