1 files changed, 79 insertions, 0 deletions
diff --git a/libavfilter/blend.h b/libavfilter/blend.h
new file mode 100644
index 0000000000..54c4fdb6d1
--- /dev/null
+++ b/libavfilter/blend.h
@@ -0,0 +1,79 @@
+/*
+ * 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_BLEND_H
+#define AVFILTER_BLEND_H
+
+#include "libavutil/eval.h"
+#include "avfilter.h"
+
+enum BlendMode {
+    BLEND_UNSET = -1,
+    BLEND_NORMAL,
+    BLEND_ADDITION,
+    BLEND_AND,
+    BLEND_AVERAGE,
+    BLEND_BURN,
+    BLEND_DARKEN,
+    BLEND_DIFFERENCE,
+    BLEND_DIFFERENCE128,
+    BLEND_DIVIDE,
+    BLEND_DODGE,
+    BLEND_EXCLUSION,
+    BLEND_HARDLIGHT,
+    BLEND_LIGHTEN,
+    BLEND_MULTIPLY,
+    BLEND_NEGATION,
+    BLEND_OR,
+    BLEND_OVERLAY,
+    BLEND_PHOENIX,
+    BLEND_PINLIGHT,
+    BLEND_REFLECT,
+    BLEND_SCREEN,
+    BLEND_SOFTLIGHT,
+    BLEND_SUBTRACT,
+    BLEND_VIVIDLIGHT,
+    BLEND_XOR,
+    BLEND_HARDMIX,
+    BLEND_LINEARLIGHT,
+    BLEND_GLOW,
+    BLEND_ADDITION128,
+    BLEND_MULTIPLY128,
+    BLEND_HEAT,
+    BLEND_FREEZE,
+    BLEND_NB
+};
+
+typedef struct FilterParams {
+    enum BlendMode mode;
+    double opacity;
+    AVExpr *e;
+    char *expr_str;
+    void (*blend)(const uint8_t *top, ptrdiff_t top_linesize,
+                  const uint8_t *bottom, ptrdiff_t bottom_linesize,
+                  uint8_t *dst, ptrdiff_t dst_linesize,
+                  ptrdiff_t width, ptrdiff_t height,
+                  struct FilterParams *param, double *values, int starty);
+} FilterParams;
+
+void ff_blend_init(FilterParams *param, int is_16bit);
+void ff_blend_init_x86(FilterParams *param, int is_16bit);
+
+#endif /* AVFILTER_BLEND_H */