x86/vf_noise: move asm code to a separate file

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>

1 files changed, 64 insertions, 0 deletions

diff --git a/libavfilter/vf_noise.h b/libavfilter/vf_noise.h
new file mode 100644
index 0000000000..2207ed961f
--- /dev/null
+++ b/libavfilter/vf_noise.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2013 Paul B Mahol
+ *
+ * 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_NOISE_H
+#define AVFILTER_NOISE_H
+
+#include "libavutil/lfg.h"
+#include "avfilter.h"
+
+#define MAX_NOISE 5120
+#define MAX_SHIFT 1024
+#define MAX_RES (MAX_NOISE-MAX_SHIFT)
+
+#define NOISE_UNIFORM  1
+#define NOISE_TEMPORAL 2
+#define NOISE_AVERAGED 8
+#define NOISE_PATTERN  16
+
+typedef struct {
+    int strength;
+    unsigned flags;
+    AVLFG lfg;
+    int seed;
+    int8_t *noise;
+    int8_t *prev_shift[MAX_RES][3];
+    int rand_shift[MAX_RES];
+    int rand_shift_init;
+} FilterParams;
+
+typedef struct {
+    const AVClass *class;
+    int nb_planes;
+    int bytewidth[4];
+    int height[4];
+    FilterParams all;
+    FilterParams param[4];
+    void (*line_noise)(uint8_t *dst, const uint8_t *src, const int8_t *noise, int len, int shift);
+    void (*line_noise_avg)(uint8_t *dst, const uint8_t *src, int len, const int8_t * const *shift);
+} NoiseContext;
+
+void ff_line_noise_c(uint8_t *dst, const uint8_t *src, const int8_t *noise, int len, int shift);
+void ff_line_noise_avg_c(uint8_t *dst, const uint8_t *src, int len, const int8_t * const *shift);
+
+void ff_noise_init_x86(NoiseContext *n);
+
+#endif /* AVFILTER_NOISE_H */