]> git.sesse.net Git - ffmpeg/blobdiff - libavfilter/vf_blend.c
avfilter: Constify all AVFilters
[ffmpeg] / libavfilter / vf_blend.c
index 80d3e24699d1720b8c10b1321e39d913105b5c20..0b33107b79b28ec2419f383c17a36b470d502645 100644 (file)
  */
 
 #include "libavutil/imgutils.h"
+#include "libavutil/intfloat.h"
 #include "libavutil/eval.h"
 #include "libavutil/opt.h"
 #include "libavutil/pixfmt.h"
 #include "avfilter.h"
-#include "bufferqueue.h"
 #include "formats.h"
 #include "framesync.h"
 #include "internal.h"
@@ -60,63 +60,60 @@ typedef struct ThreadData {
     FilterParams *param;
 } ThreadData;
 
-#define COMMON_OPTIONS \
-    { "c0_mode", "set component #0 blend mode", OFFSET(params[0].mode), AV_OPT_TYPE_INT, {.i64=0}, 0, BLEND_NB-1, FLAGS, "mode"},\
-    { "c1_mode", "set component #1 blend mode", OFFSET(params[1].mode), AV_OPT_TYPE_INT, {.i64=0}, 0, BLEND_NB-1, FLAGS, "mode"},\
-    { "c2_mode", "set component #2 blend mode", OFFSET(params[2].mode), AV_OPT_TYPE_INT, {.i64=0}, 0, BLEND_NB-1, FLAGS, "mode"},\
-    { "c3_mode", "set component #3 blend mode", OFFSET(params[3].mode), AV_OPT_TYPE_INT, {.i64=0}, 0, BLEND_NB-1, FLAGS, "mode"},\
-    { "all_mode", "set blend mode for all components", OFFSET(all_mode), AV_OPT_TYPE_INT, {.i64=-1},-1, BLEND_NB-1, FLAGS, "mode"},\
-    { "addition",   "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_ADDITION},   0, 0, FLAGS, "mode" },\
-    { "addition128","", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GRAINMERGE}, 0, 0, FLAGS, "mode" },\
-    { "grainmerge", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GRAINMERGE}, 0, 0, FLAGS, "mode" },\
-    { "and",        "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_AND},        0, 0, FLAGS, "mode" },\
-    { "average",    "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_AVERAGE},    0, 0, FLAGS, "mode" },\
-    { "burn",       "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_BURN},       0, 0, FLAGS, "mode" },\
-    { "darken",     "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DARKEN},     0, 0, FLAGS, "mode" },\
-    { "difference", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DIFFERENCE}, 0, 0, FLAGS, "mode" },\
-    { "difference128", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GRAINEXTRACT}, 0, 0, FLAGS, "mode" },\
-    { "grainextract", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GRAINEXTRACT}, 0, 0, FLAGS, "mode" },\
-    { "divide",     "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DIVIDE},     0, 0, FLAGS, "mode" },\
-    { "dodge",      "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DODGE},      0, 0, FLAGS, "mode" },\
-    { "exclusion",  "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_EXCLUSION},  0, 0, FLAGS, "mode" },\
-    { "extremity",  "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_EXTREMITY},  0, 0, FLAGS, "mode" },\
-    { "freeze",     "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_FREEZE},     0, 0, FLAGS, "mode" },\
-    { "glow",       "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GLOW},       0, 0, FLAGS, "mode" },\
-    { "hardlight",  "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_HARDLIGHT},  0, 0, FLAGS, "mode" },\
-    { "hardmix",    "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_HARDMIX},    0, 0, FLAGS, "mode" },\
-    { "heat",       "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_HEAT},       0, 0, FLAGS, "mode" },\
-    { "lighten",    "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_LIGHTEN},    0, 0, FLAGS, "mode" },\
-    { "linearlight","", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_LINEARLIGHT},0, 0, FLAGS, "mode" },\
-    { "multiply",   "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_MULTIPLY},   0, 0, FLAGS, "mode" },\
-    { "multiply128","", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_MULTIPLY128},0, 0, FLAGS, "mode" },\
-    { "negation",   "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_NEGATION},   0, 0, FLAGS, "mode" },\
-    { "normal",     "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_NORMAL},     0, 0, FLAGS, "mode" },\
-    { "or",         "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_OR},         0, 0, FLAGS, "mode" },\
-    { "overlay",    "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_OVERLAY},    0, 0, FLAGS, "mode" },\
-    { "phoenix",    "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_PHOENIX},    0, 0, FLAGS, "mode" },\
-    { "pinlight",   "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_PINLIGHT},   0, 0, FLAGS, "mode" },\
-    { "reflect",    "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_REFLECT},    0, 0, FLAGS, "mode" },\
-    { "screen",     "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_SCREEN},     0, 0, FLAGS, "mode" },\
-    { "softlight",  "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_SOFTLIGHT},  0, 0, FLAGS, "mode" },\
-    { "subtract",   "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_SUBTRACT},   0, 0, FLAGS, "mode" },\
-    { "vividlight", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_VIVIDLIGHT}, 0, 0, FLAGS, "mode" },\
-    { "xor",        "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_XOR},        0, 0, FLAGS, "mode" },\
-    { "c0_expr",  "set color component #0 expression", OFFSET(params[0].expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, CHAR_MIN, CHAR_MAX, FLAGS },\
-    { "c1_expr",  "set color component #1 expression", OFFSET(params[1].expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, CHAR_MIN, CHAR_MAX, FLAGS },\
-    { "c2_expr",  "set color component #2 expression", OFFSET(params[2].expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, CHAR_MIN, CHAR_MAX, FLAGS },\
-    { "c3_expr",  "set color component #3 expression", OFFSET(params[3].expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, CHAR_MIN, CHAR_MAX, FLAGS },\
-    { "all_expr", "set expression for all color components", OFFSET(all_expr), AV_OPT_TYPE_STRING, {.str=NULL}, CHAR_MIN, CHAR_MAX, FLAGS },\
-    { "c0_opacity",  "set color component #0 opacity", OFFSET(params[0].opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },\
-    { "c1_opacity",  "set color component #1 opacity", OFFSET(params[1].opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },\
-    { "c2_opacity",  "set color component #2 opacity", OFFSET(params[2].opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },\
-    { "c3_opacity",  "set color component #3 opacity", OFFSET(params[3].opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },\
-    { "all_opacity", "set opacity for all color components", OFFSET(all_opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}
-
 #define OFFSET(x) offsetof(BlendContext, x)
-#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
+#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
 
 static const AVOption blend_options[] = {
-    COMMON_OPTIONS,
+    { "c0_mode", "set component #0 blend mode", OFFSET(params[0].mode), AV_OPT_TYPE_INT, {.i64=0}, 0, BLEND_NB-1, FLAGS, "mode" },
+    { "c1_mode", "set component #1 blend mode", OFFSET(params[1].mode), AV_OPT_TYPE_INT, {.i64=0}, 0, BLEND_NB-1, FLAGS, "mode" },
+    { "c2_mode", "set component #2 blend mode", OFFSET(params[2].mode), AV_OPT_TYPE_INT, {.i64=0}, 0, BLEND_NB-1, FLAGS, "mode" },
+    { "c3_mode", "set component #3 blend mode", OFFSET(params[3].mode), AV_OPT_TYPE_INT, {.i64=0}, 0, BLEND_NB-1, FLAGS, "mode" },
+    { "all_mode", "set blend mode for all components", OFFSET(all_mode), AV_OPT_TYPE_INT, {.i64=-1},-1, BLEND_NB-1, FLAGS, "mode" },
+    { "addition",   "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_ADDITION},   0, 0, FLAGS, "mode" },
+    { "addition128","", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GRAINMERGE}, 0, 0, FLAGS, "mode" },
+    { "grainmerge", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GRAINMERGE}, 0, 0, FLAGS, "mode" },
+    { "and",        "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_AND},        0, 0, FLAGS, "mode" },
+    { "average",    "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_AVERAGE},    0, 0, FLAGS, "mode" },
+    { "burn",       "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_BURN},       0, 0, FLAGS, "mode" },
+    { "darken",     "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DARKEN},     0, 0, FLAGS, "mode" },
+    { "difference", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DIFFERENCE}, 0, 0, FLAGS, "mode" },
+    { "difference128", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GRAINEXTRACT}, 0, 0, FLAGS, "mode" },
+    { "grainextract", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GRAINEXTRACT}, 0, 0, FLAGS, "mode" },
+    { "divide",     "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DIVIDE},     0, 0, FLAGS, "mode" },
+    { "dodge",      "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DODGE},      0, 0, FLAGS, "mode" },
+    { "exclusion",  "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_EXCLUSION},  0, 0, FLAGS, "mode" },
+    { "extremity",  "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_EXTREMITY},  0, 0, FLAGS, "mode" },
+    { "freeze",     "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_FREEZE},     0, 0, FLAGS, "mode" },
+    { "glow",       "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GLOW},       0, 0, FLAGS, "mode" },
+    { "hardlight",  "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_HARDLIGHT},  0, 0, FLAGS, "mode" },
+    { "hardmix",    "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_HARDMIX},    0, 0, FLAGS, "mode" },
+    { "heat",       "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_HEAT},       0, 0, FLAGS, "mode" },
+    { "lighten",    "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_LIGHTEN},    0, 0, FLAGS, "mode" },
+    { "linearlight","", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_LINEARLIGHT},0, 0, FLAGS, "mode" },
+    { "multiply",   "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_MULTIPLY},   0, 0, FLAGS, "mode" },
+    { "multiply128","", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_MULTIPLY128},0, 0, FLAGS, "mode" },
+    { "negation",   "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_NEGATION},   0, 0, FLAGS, "mode" },
+    { "normal",     "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_NORMAL},     0, 0, FLAGS, "mode" },
+    { "or",         "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_OR},         0, 0, FLAGS, "mode" },
+    { "overlay",    "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_OVERLAY},    0, 0, FLAGS, "mode" },
+    { "phoenix",    "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_PHOENIX},    0, 0, FLAGS, "mode" },
+    { "pinlight",   "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_PINLIGHT},   0, 0, FLAGS, "mode" },
+    { "reflect",    "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_REFLECT},    0, 0, FLAGS, "mode" },
+    { "screen",     "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_SCREEN},     0, 0, FLAGS, "mode" },
+    { "softlight",  "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_SOFTLIGHT},  0, 0, FLAGS, "mode" },
+    { "subtract",   "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_SUBTRACT},   0, 0, FLAGS, "mode" },
+    { "vividlight", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_VIVIDLIGHT}, 0, 0, FLAGS, "mode" },
+    { "xor",        "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_XOR},        0, 0, FLAGS, "mode" },
+    { "c0_expr",  "set color component #0 expression", OFFSET(params[0].expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
+    { "c1_expr",  "set color component #1 expression", OFFSET(params[1].expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
+    { "c2_expr",  "set color component #2 expression", OFFSET(params[2].expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
+    { "c3_expr",  "set color component #3 expression", OFFSET(params[3].expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
+    { "all_expr", "set expression for all color components", OFFSET(all_expr), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
+    { "c0_opacity",  "set color component #0 opacity", OFFSET(params[0].opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
+    { "c1_opacity",  "set color component #1 opacity", OFFSET(params[1].opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
+    { "c2_opacity",  "set color component #2 opacity", OFFSET(params[2].opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
+    { "c3_opacity",  "set color component #3 opacity", OFFSET(params[3].opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
+    { "all_opacity", "set opacity for all color components", OFFSET(all_opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
     { NULL }
 };
 
@@ -139,6 +136,9 @@ COPY(bottom, 8)
 COPY(top, 16)
 COPY(bottom, 16)
 
+COPY(top, 32)
+COPY(bottom, 32)
+
 #undef COPY
 
 static void blend_normal_8bit(const uint8_t *top, ptrdiff_t top_linesize,
@@ -185,6 +185,31 @@ static void blend_normal_16bit(const uint8_t *_top, ptrdiff_t top_linesize,
     }
 }
 
+static void blend_normal_32bit(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,
+                               FilterParams *param, double *values, int starty)
+{
+    const float *top = (float*)_top;
+    const float *bottom = (float*)_bottom;
+    float *dst = (float*)_dst;
+    const double opacity = param->opacity;
+    int i, j;
+    dst_linesize /= 4;
+    top_linesize /= 4;
+    bottom_linesize /= 4;
+
+    for (i = 0; i < height; i++) {
+        for (j = 0; j < width; j++) {
+            dst[j] = top[j] * opacity + bottom[j] * (1. - opacity);
+        }
+        dst    += dst_linesize;
+        top    += top_linesize;
+        bottom += bottom_linesize;
+    }
+}
+
 #define DEFINE_BLEND8(name, expr)                                              \
 static void blend_## name##_8bit(const uint8_t *top, ptrdiff_t top_linesize,         \
                                  const uint8_t *bottom, ptrdiff_t bottom_linesize,   \
@@ -231,6 +256,32 @@ static void blend_## name##_##depth##bit(const uint8_t *_top, ptrdiff_t top_line
     }                                                                          \
 }
 
+#define DEFINE_BLEND32(name, expr, depth)                                            \
+static void blend_## name##_##depth##bit(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,                 \
+                                  FilterParams *param, double *values, int starty)   \
+{                                                                              \
+    const float *top = (const float*)_top;                                     \
+    const float *bottom = (const float*)_bottom;                               \
+    float *dst = (float*)_dst;                                                 \
+    double opacity = param->opacity;                                           \
+    int i, j;                                                                  \
+    dst_linesize /= 4;                                                         \
+    top_linesize /= 4;                                                         \
+    bottom_linesize /= 4;                                                      \
+                                                                               \
+    for (i = 0; i < height; i++) {                                             \
+        for (j = 0; j < width; j++) {                                          \
+            dst[j] = top[j] + ((expr) - top[j]) * opacity;                     \
+        }                                                                      \
+        dst    += dst_linesize;                                                \
+        top    += top_linesize;                                                \
+        bottom += bottom_linesize;                                             \
+    }                                                                          \
+}
+
 #define A top[j]
 #define B bottom[j]
 
@@ -401,6 +452,92 @@ DEFINE_BLEND16(xor,        A ^ B, 12)
 DEFINE_BLEND16(vividlight, (A < 2048) ? BURN(2 * A, B) : DODGE(2 * (A - 2048), B), 12)
 DEFINE_BLEND16(linearlight,(int)av_clip_uintp2((B < 2048) ? B + 2 * A - 4095 : B + 2 * (A - 2048), 12), 12)
 
+#undef MULTIPLY
+#undef SCREEN
+#undef BURN
+#undef DODGE
+
+#define MULTIPLY(x, a, b) ((x) * (((a) * (b)) / 511))
+#define SCREEN(x, a, b)   (511 - (x) * ((511 - (a)) * (511 - (b)) / 511))
+#define BURN(a, b)        (((a) == 0) ? (a) : FFMAX(0, 511 - ((511 - (b)) << 9) / (a)))
+#define DODGE(a, b)       (((a) == 511) ? (a) : FFMIN(511, (((b) << 9) / (511 - (a)))))
+
+DEFINE_BLEND16(addition,   FFMIN(511, A + B), 9)
+DEFINE_BLEND16(grainmerge, (int)av_clip_uintp2(A + B - 256, 9), 9)
+DEFINE_BLEND16(average,    (A + B) / 2, 9)
+DEFINE_BLEND16(subtract,   FFMAX(0, A - B), 9)
+DEFINE_BLEND16(multiply,   MULTIPLY(1, A, B), 9)
+DEFINE_BLEND16(multiply128, (int)av_clip_uintp2((A - 256) * B / 64. + 256, 9), 9)
+DEFINE_BLEND16(negation,   511 - FFABS(511 - A - B), 9)
+DEFINE_BLEND16(extremity,  FFABS(511 - A - B), 9)
+DEFINE_BLEND16(difference, FFABS(A - B), 9)
+DEFINE_BLEND16(grainextract, (int)av_clip_uintp2(256 + A - B, 9), 9)
+DEFINE_BLEND16(screen,     SCREEN(1, A, B), 9)
+DEFINE_BLEND16(overlay,    (A < 256) ? MULTIPLY(2, A, B) : SCREEN(2, A, B), 9)
+DEFINE_BLEND16(hardlight,  (B < 256) ? MULTIPLY(2, B, A) : SCREEN(2, B, A), 9)
+DEFINE_BLEND16(hardmix,    (A < (511 - B)) ? 0: 511, 9)
+DEFINE_BLEND16(heat,       (A == 0) ? 0 : 511 - FFMIN(((511 - B) * (511 - B)) / A, 511), 9)
+DEFINE_BLEND16(freeze,     (B == 0) ? 0 : 511 - FFMIN(((511 - A) * (511 - A)) / B, 511), 9)
+DEFINE_BLEND16(darken,     FFMIN(A, B), 9)
+DEFINE_BLEND16(lighten,    FFMAX(A, B), 9)
+DEFINE_BLEND16(divide,     (int)av_clip_uintp2(B == 0 ? 511 : 511 * A / B, 9), 9)
+DEFINE_BLEND16(dodge,      DODGE(A, B), 9)
+DEFINE_BLEND16(burn,       BURN(A, B), 9)
+DEFINE_BLEND16(softlight,  (A > 511) ? B + (511 - B) * (A - 511.5) / 511.5 * (0.5 - fabs(B - 511.5) / 511): B - B * ((511.5 - A) / 511.5) * (0.5 - fabs(B - 511.5)/511), 9)
+DEFINE_BLEND16(exclusion,  A + B - 2 * A * B / 511, 9)
+DEFINE_BLEND16(pinlight,   (B < 256) ? FFMIN(A, 2 * B) : FFMAX(A, 2 * (B - 256)), 9)
+DEFINE_BLEND16(phoenix,    FFMIN(A, B) - FFMAX(A, B) + 511, 9)
+DEFINE_BLEND16(reflect,    (B == 511) ? B : FFMIN(511, (A * A / (511 - B))), 9)
+DEFINE_BLEND16(glow,       (A == 511) ? A : FFMIN(511, (B * B / (511 - A))), 9)
+DEFINE_BLEND16(and,        A & B, 9)
+DEFINE_BLEND16(or,         A | B, 9)
+DEFINE_BLEND16(xor,        A ^ B, 9)
+DEFINE_BLEND16(vividlight, (A < 256) ? BURN(2 * A, B) : DODGE(2 * (A - 256), B), 9)
+DEFINE_BLEND16(linearlight,(int)av_clip_uintp2((B < 256) ? B + 2 * A - 511 : B + 2 * (A - 256), 9), 9)
+
+#undef MULTIPLY
+#undef SCREEN
+#undef BURN
+#undef DODGE
+
+#define MULTIPLY(x, a, b) ((x) * (((a) * (b)) / 1.0))
+#define SCREEN(x, a, b)   (1.0 - (x) * ((1.0 - (a)) * (1.0 - (b)) / 1.0))
+#define BURN(a, b)        (((a) <= 0.0) ? (a) : FFMAX(0.0, 1.0 - (1.0 - (b)) / (a)))
+#define DODGE(a, b)       (((a) >= 1.0) ? (a) : FFMIN(1.0, ((b) / (1.0 - (a)))))
+
+DEFINE_BLEND32(addition,   A + B, 32)
+DEFINE_BLEND32(grainmerge, A + B - 0.5, 32)
+DEFINE_BLEND32(average,    (A + B) / 2, 32)
+DEFINE_BLEND32(subtract,   A - B, 32)
+DEFINE_BLEND32(multiply,   A * B, 32)
+DEFINE_BLEND32(multiply128, (A - 0.5) * B / 0.125 + 0.5, 32)
+DEFINE_BLEND32(negation,   1.0 - FFABS(1.0 - A - B), 32)
+DEFINE_BLEND32(extremity,  FFABS(1.0 - A - B), 32)
+DEFINE_BLEND32(difference, FFABS(A - B), 32)
+DEFINE_BLEND32(grainextract, 0.5 + A - B, 32)
+DEFINE_BLEND32(screen,     SCREEN(1, A, B), 32)
+DEFINE_BLEND32(overlay,    (A < 0.5) ? MULTIPLY(2, A, B) : SCREEN(2, A, B), 32)
+DEFINE_BLEND32(hardlight,  (B < 0.5) ? MULTIPLY(2, B, A) : SCREEN(2, B, A), 32)
+DEFINE_BLEND32(hardmix,    (A < (1.0 - B)) ? 0: 1.0, 32)
+DEFINE_BLEND32(heat,       (A == 0) ? 0 : 1.0 - FFMIN(((1.0 - B) * (1.0 - B)) / A, 1.0), 32)
+DEFINE_BLEND32(freeze,     (B == 0) ? 0 : 1.0 - FFMIN(((1.0 - A) * (1.0 - A)) / B, 1.0), 32)
+DEFINE_BLEND32(darken,     FFMIN(A, B), 32)
+DEFINE_BLEND32(lighten,    FFMAX(A, B), 32)
+DEFINE_BLEND32(divide,     B == 0 ? 1.0 : 1.0 * A / B, 32)
+DEFINE_BLEND32(dodge,      DODGE(A, B), 32)
+DEFINE_BLEND32(burn,       BURN(A, B), 32)
+DEFINE_BLEND32(softlight,  (A > 0.5) ? B + (1.0 - B) * (A - 0.5) / 0.5 * (0.5 - fabs(B - 0.5) / 1.0): B - B * ((0.5 - A) / 0.5) * (0.5 - fabs(B - 0.5)/1.0), 32)
+DEFINE_BLEND32(exclusion,  A + B - 2 * A * B / 1.0, 32)
+DEFINE_BLEND32(pinlight,   (B < 0.5) ? FFMIN(A, 2 * B) : FFMAX(A, 2 * (B - 0.5)), 32)
+DEFINE_BLEND32(phoenix,    FFMIN(A, B) - FFMAX(A, B) + 1.0, 32)
+DEFINE_BLEND32(reflect,    (B == 1.0) ? B : FFMIN(1.0, (A * A / (1.0 - B))), 32)
+DEFINE_BLEND32(glow,       (A == 1.0) ? A : FFMIN(1.0, (B * B / (1.0 - A))), 32)
+DEFINE_BLEND32(and,        av_int2float(av_float2int(A) & av_float2int(B)), 32)
+DEFINE_BLEND32(or,         av_int2float(av_float2int(A) | av_float2int(B)), 32)
+DEFINE_BLEND32(xor,        av_int2float(av_float2int(A) ^ av_float2int(B)), 32)
+DEFINE_BLEND32(vividlight, (A < 0.5) ? BURN(2 * A, B) : DODGE(2 * (A - 0.5), B), 32)
+DEFINE_BLEND32(linearlight,(B < 0.5) ? B + 2 * A - 1.0 : B + 2 * (A - 0.5), 32)
+
 #define DEFINE_BLEND_EXPR(type, name, div)                                     \
 static void blend_expr_## name(const uint8_t *_top, ptrdiff_t top_linesize,          \
                                const uint8_t *_bottom, ptrdiff_t bottom_linesize,    \
@@ -433,6 +570,7 @@ static void blend_expr_## name(const uint8_t *_top, ptrdiff_t top_linesize,
 
 DEFINE_BLEND_EXPR(uint8_t, 8bit, 1)
 DEFINE_BLEND_EXPR(uint16_t, 16bit, 2)
+DEFINE_BLEND_EXPR(float, 32bit, 4)
 
 static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 {
@@ -527,14 +665,18 @@ static int query_formats(AVFilterContext *ctx)
         AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ422P,AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ411P,
         AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
         AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, AV_PIX_FMT_GRAY8,
+        AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
+        AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_GBRP9,
         AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV440P10,
         AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
         AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GRAY10,
         AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
+        AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12,
         AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GRAY12,
         AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
         AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
         AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16, AV_PIX_FMT_GRAY16,
+        AV_PIX_FMT_GBRPF32, AV_PIX_FMT_GBRAPF32, AV_PIX_FMT_GRAYF32,
         AV_PIX_FMT_NONE
     };
 
@@ -556,182 +698,127 @@ static av_cold void uninit(AVFilterContext *ctx)
         av_expr_free(s->params[i].e);
 }
 
+#define DEFINE_INIT_BLEND_FUNC(depth, nbits)                                          \
+static av_cold void init_blend_func_##depth##_##nbits##bit(FilterParams *param)       \
+{                                                                                     \
+    switch (param->mode) {                                                            \
+    case BLEND_ADDITION:     param->blend = blend_addition_##depth##bit;     break;   \
+    case BLEND_GRAINMERGE:   param->blend = blend_grainmerge_##depth##bit;   break;   \
+    case BLEND_AND:          param->blend = blend_and_##depth##bit;          break;   \
+    case BLEND_AVERAGE:      param->blend = blend_average_##depth##bit;      break;   \
+    case BLEND_BURN:         param->blend = blend_burn_##depth##bit;         break;   \
+    case BLEND_DARKEN:       param->blend = blend_darken_##depth##bit;       break;   \
+    case BLEND_DIFFERENCE:   param->blend = blend_difference_##depth##bit;   break;   \
+    case BLEND_GRAINEXTRACT: param->blend = blend_grainextract_##depth##bit; break;   \
+    case BLEND_DIVIDE:       param->blend = blend_divide_##depth##bit;       break;   \
+    case BLEND_DODGE:        param->blend = blend_dodge_##depth##bit;        break;   \
+    case BLEND_EXCLUSION:    param->blend = blend_exclusion_##depth##bit;    break;   \
+    case BLEND_EXTREMITY:    param->blend = blend_extremity_##depth##bit;    break;   \
+    case BLEND_FREEZE:       param->blend = blend_freeze_##depth##bit;       break;   \
+    case BLEND_GLOW:         param->blend = blend_glow_##depth##bit;         break;   \
+    case BLEND_HARDLIGHT:    param->blend = blend_hardlight_##depth##bit;    break;   \
+    case BLEND_HARDMIX:      param->blend = blend_hardmix_##depth##bit;      break;   \
+    case BLEND_HEAT:         param->blend = blend_heat_##depth##bit;         break;   \
+    case BLEND_LIGHTEN:      param->blend = blend_lighten_##depth##bit;      break;   \
+    case BLEND_LINEARLIGHT:  param->blend = blend_linearlight_##depth##bit;  break;   \
+    case BLEND_MULTIPLY:     param->blend = blend_multiply_##depth##bit;     break;   \
+    case BLEND_MULTIPLY128:  param->blend = blend_multiply128_##depth##bit;  break;   \
+    case BLEND_NEGATION:     param->blend = blend_negation_##depth##bit;     break;   \
+    case BLEND_NORMAL:       param->blend = blend_normal_##nbits##bit;       break;   \
+    case BLEND_OR:           param->blend = blend_or_##depth##bit;           break;   \
+    case BLEND_OVERLAY:      param->blend = blend_overlay_##depth##bit;      break;   \
+    case BLEND_PHOENIX:      param->blend = blend_phoenix_##depth##bit;      break;   \
+    case BLEND_PINLIGHT:     param->blend = blend_pinlight_##depth##bit;     break;   \
+    case BLEND_REFLECT:      param->blend = blend_reflect_##depth##bit;      break;   \
+    case BLEND_SCREEN:       param->blend = blend_screen_##depth##bit;       break;   \
+    case BLEND_SOFTLIGHT:    param->blend = blend_softlight_##depth##bit;    break;   \
+    case BLEND_SUBTRACT:     param->blend = blend_subtract_##depth##bit;     break;   \
+    case BLEND_VIVIDLIGHT:   param->blend = blend_vividlight_##depth##bit;   break;   \
+    case BLEND_XOR:          param->blend = blend_xor_##depth##bit;          break;   \
+    }                                                                                 \
+}
+DEFINE_INIT_BLEND_FUNC(8, 8)
+DEFINE_INIT_BLEND_FUNC(9, 16)
+DEFINE_INIT_BLEND_FUNC(10, 16)
+DEFINE_INIT_BLEND_FUNC(12, 16)
+DEFINE_INIT_BLEND_FUNC(16, 16)
+DEFINE_INIT_BLEND_FUNC(32, 32)
+
 void ff_blend_init(FilterParams *param, int depth)
 {
     switch (depth) {
     case 8:
-        switch (param->mode) {
-        case BLEND_ADDITION:   param->blend = blend_addition_8bit;   break;
-        case BLEND_GRAINMERGE: param->blend = blend_grainmerge_8bit; break;
-        case BLEND_AND:        param->blend = blend_and_8bit;        break;
-        case BLEND_AVERAGE:    param->blend = blend_average_8bit;    break;
-        case BLEND_BURN:       param->blend = blend_burn_8bit;       break;
-        case BLEND_DARKEN:     param->blend = blend_darken_8bit;     break;
-        case BLEND_DIFFERENCE: param->blend = blend_difference_8bit; break;
-        case BLEND_GRAINEXTRACT: param->blend = blend_grainextract_8bit; break;
-        case BLEND_DIVIDE:     param->blend = blend_divide_8bit;     break;
-        case BLEND_DODGE:      param->blend = blend_dodge_8bit;      break;
-        case BLEND_EXCLUSION:  param->blend = blend_exclusion_8bit;  break;
-        case BLEND_EXTREMITY:  param->blend = blend_extremity_8bit;  break;
-        case BLEND_FREEZE:     param->blend = blend_freeze_8bit;     break;
-        case BLEND_GLOW:       param->blend = blend_glow_8bit;       break;
-        case BLEND_HARDLIGHT:  param->blend = blend_hardlight_8bit;  break;
-        case BLEND_HARDMIX:    param->blend = blend_hardmix_8bit;    break;
-        case BLEND_HEAT:       param->blend = blend_heat_8bit;       break;
-        case BLEND_LIGHTEN:    param->blend = blend_lighten_8bit;    break;
-        case BLEND_LINEARLIGHT:param->blend = blend_linearlight_8bit;break;
-        case BLEND_MULTIPLY:   param->blend = blend_multiply_8bit;   break;
-        case BLEND_MULTIPLY128:param->blend = blend_multiply128_8bit;break;
-        case BLEND_NEGATION:   param->blend = blend_negation_8bit;   break;
-        case BLEND_NORMAL:     param->blend = param->opacity == 1 ? blend_copytop_8 :
-                                              param->opacity == 0 ? blend_copybottom_8 :
-                                              blend_normal_8bit;     break;
-        case BLEND_OR:         param->blend = blend_or_8bit;         break;
-        case BLEND_OVERLAY:    param->blend = blend_overlay_8bit;    break;
-        case BLEND_PHOENIX:    param->blend = blend_phoenix_8bit;    break;
-        case BLEND_PINLIGHT:   param->blend = blend_pinlight_8bit;   break;
-        case BLEND_REFLECT:    param->blend = blend_reflect_8bit;    break;
-        case BLEND_SCREEN:     param->blend = blend_screen_8bit;     break;
-        case BLEND_SOFTLIGHT:  param->blend = blend_softlight_8bit;  break;
-        case BLEND_SUBTRACT:   param->blend = blend_subtract_8bit;   break;
-        case BLEND_VIVIDLIGHT: param->blend = blend_vividlight_8bit; break;
-        case BLEND_XOR:        param->blend = blend_xor_8bit;        break;
-        }
+        init_blend_func_8_8bit(param);
+        break;
+    case 9:
+        init_blend_func_9_16bit(param);
         break;
     case 10:
-        switch (param->mode) {
-        case BLEND_ADDITION:   param->blend = blend_addition_10bit;   break;
-        case BLEND_GRAINMERGE: param->blend = blend_grainmerge_10bit; break;
-        case BLEND_AND:        param->blend = blend_and_10bit;        break;
-        case BLEND_AVERAGE:    param->blend = blend_average_10bit;    break;
-        case BLEND_BURN:       param->blend = blend_burn_10bit;       break;
-        case BLEND_DARKEN:     param->blend = blend_darken_10bit;     break;
-        case BLEND_DIFFERENCE: param->blend = blend_difference_10bit; break;
-        case BLEND_GRAINEXTRACT: param->blend = blend_grainextract_10bit; break;
-        case BLEND_DIVIDE:     param->blend = blend_divide_10bit;     break;
-        case BLEND_DODGE:      param->blend = blend_dodge_10bit;      break;
-        case BLEND_EXCLUSION:  param->blend = blend_exclusion_10bit;  break;
-        case BLEND_EXTREMITY:  param->blend = blend_extremity_10bit;  break;
-        case BLEND_FREEZE:     param->blend = blend_freeze_10bit;     break;
-        case BLEND_GLOW:       param->blend = blend_glow_10bit;       break;
-        case BLEND_HARDLIGHT:  param->blend = blend_hardlight_10bit;  break;
-        case BLEND_HARDMIX:    param->blend = blend_hardmix_10bit;    break;
-        case BLEND_HEAT:       param->blend = blend_heat_10bit;       break;
-        case BLEND_LIGHTEN:    param->blend = blend_lighten_10bit;    break;
-        case BLEND_LINEARLIGHT:param->blend = blend_linearlight_10bit;break;
-        case BLEND_MULTIPLY:   param->blend = blend_multiply_10bit;   break;
-        case BLEND_MULTIPLY128:param->blend = blend_multiply128_10bit;break;
-        case BLEND_NEGATION:   param->blend = blend_negation_10bit;   break;
-        case BLEND_NORMAL:     param->blend = param->opacity == 1 ? blend_copytop_16 :
-                                              param->opacity == 0 ? blend_copybottom_16 :
-                                              blend_normal_16bit;    break;
-        case BLEND_OR:         param->blend = blend_or_10bit;        break;
-        case BLEND_OVERLAY:    param->blend = blend_overlay_10bit;   break;
-        case BLEND_PHOENIX:    param->blend = blend_phoenix_10bit;   break;
-        case BLEND_PINLIGHT:   param->blend = blend_pinlight_10bit;  break;
-        case BLEND_REFLECT:    param->blend = blend_reflect_10bit;   break;
-        case BLEND_SCREEN:     param->blend = blend_screen_10bit;    break;
-        case BLEND_SOFTLIGHT:  param->blend = blend_softlight_10bit; break;
-        case BLEND_SUBTRACT:   param->blend = blend_subtract_10bit;  break;
-        case BLEND_VIVIDLIGHT: param->blend = blend_vividlight_10bit;break;
-        case BLEND_XOR:        param->blend = blend_xor_10bit;       break;
-        }
+        init_blend_func_10_16bit(param);
         break;
     case 12:
-        switch (param->mode) {
-        case BLEND_ADDITION:   param->blend = blend_addition_12bit;   break;
-        case BLEND_GRAINMERGE: param->blend = blend_grainmerge_12bit; break;
-        case BLEND_AND:        param->blend = blend_and_12bit;        break;
-        case BLEND_AVERAGE:    param->blend = blend_average_12bit;    break;
-        case BLEND_BURN:       param->blend = blend_burn_12bit;       break;
-        case BLEND_DARKEN:     param->blend = blend_darken_12bit;     break;
-        case BLEND_DIFFERENCE: param->blend = blend_difference_12bit; break;
-        case BLEND_GRAINEXTRACT: param->blend = blend_grainextract_12bit; break;
-        case BLEND_DIVIDE:     param->blend = blend_divide_12bit;     break;
-        case BLEND_DODGE:      param->blend = blend_dodge_12bit;      break;
-        case BLEND_EXCLUSION:  param->blend = blend_exclusion_12bit;  break;
-        case BLEND_EXTREMITY:  param->blend = blend_extremity_12bit;  break;
-        case BLEND_FREEZE:     param->blend = blend_freeze_12bit;     break;
-        case BLEND_GLOW:       param->blend = blend_glow_12bit;       break;
-        case BLEND_HARDLIGHT:  param->blend = blend_hardlight_12bit;  break;
-        case BLEND_HARDMIX:    param->blend = blend_hardmix_12bit;    break;
-        case BLEND_HEAT:       param->blend = blend_heat_12bit;       break;
-        case BLEND_LIGHTEN:    param->blend = blend_lighten_12bit;    break;
-        case BLEND_LINEARLIGHT:param->blend = blend_linearlight_12bit;break;
-        case BLEND_MULTIPLY:   param->blend = blend_multiply_12bit;   break;
-        case BLEND_MULTIPLY128:param->blend = blend_multiply128_12bit;break;
-        case BLEND_NEGATION:   param->blend = blend_negation_12bit;   break;
-        case BLEND_NORMAL:     param->blend = param->opacity == 1 ? blend_copytop_16 :
-                                              param->opacity == 0 ? blend_copybottom_16 :
-                                              blend_normal_16bit;    break;
-        case BLEND_OR:         param->blend = blend_or_12bit;        break;
-        case BLEND_OVERLAY:    param->blend = blend_overlay_12bit;   break;
-        case BLEND_PHOENIX:    param->blend = blend_phoenix_12bit;   break;
-        case BLEND_PINLIGHT:   param->blend = blend_pinlight_12bit;  break;
-        case BLEND_REFLECT:    param->blend = blend_reflect_12bit;   break;
-        case BLEND_SCREEN:     param->blend = blend_screen_12bit;    break;
-        case BLEND_SOFTLIGHT:  param->blend = blend_softlight_12bit; break;
-        case BLEND_SUBTRACT:   param->blend = blend_subtract_12bit;  break;
-        case BLEND_VIVIDLIGHT: param->blend = blend_vividlight_12bit;break;
-        case BLEND_XOR:        param->blend = blend_xor_12bit;       break;
-        }
+        init_blend_func_12_16bit(param);
         break;
     case 16:
-        switch (param->mode) {
-        case BLEND_ADDITION:   param->blend = blend_addition_16bit;   break;
-        case BLEND_GRAINMERGE: param->blend = blend_grainmerge_16bit; break;
-        case BLEND_AND:        param->blend = blend_and_16bit;        break;
-        case BLEND_AVERAGE:    param->blend = blend_average_16bit;    break;
-        case BLEND_BURN:       param->blend = blend_burn_16bit;       break;
-        case BLEND_DARKEN:     param->blend = blend_darken_16bit;     break;
-        case BLEND_DIFFERENCE: param->blend = blend_difference_16bit; break;
-        case BLEND_GRAINEXTRACT: param->blend = blend_grainextract_16bit; break;
-        case BLEND_DIVIDE:     param->blend = blend_divide_16bit;     break;
-        case BLEND_DODGE:      param->blend = blend_dodge_16bit;      break;
-        case BLEND_EXCLUSION:  param->blend = blend_exclusion_16bit;  break;
-        case BLEND_EXTREMITY:  param->blend = blend_extremity_16bit;  break;
-        case BLEND_FREEZE:     param->blend = blend_freeze_16bit;     break;
-        case BLEND_GLOW:       param->blend = blend_glow_16bit;       break;
-        case BLEND_HARDLIGHT:  param->blend = blend_hardlight_16bit;  break;
-        case BLEND_HARDMIX:    param->blend = blend_hardmix_16bit;    break;
-        case BLEND_HEAT:       param->blend = blend_heat_16bit;       break;
-        case BLEND_LIGHTEN:    param->blend = blend_lighten_16bit;    break;
-        case BLEND_LINEARLIGHT:param->blend = blend_linearlight_16bit;break;
-        case BLEND_MULTIPLY:   param->blend = blend_multiply_16bit;   break;
-        case BLEND_MULTIPLY128:param->blend = blend_multiply128_16bit;break;
-        case BLEND_NEGATION:   param->blend = blend_negation_16bit;   break;
-        case BLEND_NORMAL:     param->blend = param->opacity == 1 ? blend_copytop_16 :
-                                              param->opacity == 0 ? blend_copybottom_16 :
-                                              blend_normal_16bit;    break;
-        case BLEND_OR:         param->blend = blend_or_16bit;        break;
-        case BLEND_OVERLAY:    param->blend = blend_overlay_16bit;   break;
-        case BLEND_PHOENIX:    param->blend = blend_phoenix_16bit;   break;
-        case BLEND_PINLIGHT:   param->blend = blend_pinlight_16bit;  break;
-        case BLEND_REFLECT:    param->blend = blend_reflect_16bit;   break;
-        case BLEND_SCREEN:     param->blend = blend_screen_16bit;    break;
-        case BLEND_SOFTLIGHT:  param->blend = blend_softlight_16bit; break;
-        case BLEND_SUBTRACT:   param->blend = blend_subtract_16bit;  break;
-        case BLEND_VIVIDLIGHT: param->blend = blend_vividlight_16bit;break;
-        case BLEND_XOR:        param->blend = blend_xor_16bit;       break;
-        }
+        init_blend_func_16_16bit(param);
+        break;
+    case 32:
+        init_blend_func_32_32bit(param);
         break;
     }
 
     if (param->opacity == 0 && param->mode != BLEND_NORMAL) {
-        param->blend = depth > 8 ? blend_copytop_16 : blend_copytop_8;
+        param->blend = depth > 8 ? depth > 16 ? blend_copytop_32 : blend_copytop_16 : blend_copytop_8;
+    } else if (param->mode == BLEND_NORMAL) {
+        if (param->opacity == 1)
+            param->blend = depth > 8 ? depth > 16 ? blend_copytop_32 : blend_copytop_16 : blend_copytop_8;
+        else if (param->opacity == 0)
+            param->blend = depth > 8 ? depth > 16 ? blend_copybottom_32 : blend_copybottom_16 : blend_copybottom_8;
     }
 
     if (ARCH_X86)
         ff_blend_init_x86(param, depth);
 }
 
+static int config_params(AVFilterContext *ctx)
+{
+    BlendContext *s = ctx->priv;
+    int ret;
+
+    for (int plane = 0; plane < FF_ARRAY_ELEMS(s->params); plane++) {
+        FilterParams *param = &s->params[plane];
+
+        if (s->all_mode >= 0)
+            param->mode = s->all_mode;
+        if (s->all_opacity < 1)
+            param->opacity = s->all_opacity;
+
+        ff_blend_init(param, s->depth);
+
+        if (s->all_expr && !param->expr_str) {
+            param->expr_str = av_strdup(s->all_expr);
+            if (!param->expr_str)
+                return AVERROR(ENOMEM);
+        }
+        if (param->expr_str) {
+            ret = av_expr_parse(&param->e, param->expr_str, var_names,
+                                NULL, NULL, NULL, NULL, 0, ctx);
+            if (ret < 0)
+                return ret;
+            param->blend = s->depth > 8 ? s->depth > 16 ? blend_expr_32bit : blend_expr_16bit : blend_expr_8bit;
+        }
+    }
+
+    return 0;
+}
+
 static int config_output(AVFilterLink *outlink)
 {
     AVFilterContext *ctx = outlink->src;
     AVFilterLink *toplink = ctx->inputs[TOP];
     BlendContext *s = ctx->priv;
     const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(toplink->format);
-    int ret, plane;
+    int ret;
 
     if (!s->tblend) {
         AVFilterLink *bottomlink = ctx->inputs[BOTTOM];
@@ -766,31 +853,29 @@ static int config_output(AVFilterLink *outlink)
         if ((ret = ff_framesync_init_dualinput(&s->fs, ctx)) < 0)
             return ret;
 
-    for (plane = 0; plane < FF_ARRAY_ELEMS(s->params); plane++) {
-        FilterParams *param = &s->params[plane];
+    ret = config_params(ctx);
+    if (ret < 0)
+        return ret;
 
-        if (s->all_mode >= 0)
-            param->mode = s->all_mode;
-        if (s->all_opacity < 1)
-            param->opacity = s->all_opacity;
+    if (s->tblend)
+        return 0;
 
-        ff_blend_init(param, s->depth);
+    ret = ff_framesync_configure(&s->fs);
+    outlink->time_base = s->fs.time_base;
 
-        if (s->all_expr && !param->expr_str) {
-            param->expr_str = av_strdup(s->all_expr);
-            if (!param->expr_str)
-                return AVERROR(ENOMEM);
-        }
-        if (param->expr_str) {
-            ret = av_expr_parse(&param->e, param->expr_str, var_names,
-                                NULL, NULL, NULL, NULL, 0, ctx);
-            if (ret < 0)
-                return ret;
-            param->blend = s->depth > 8 ? blend_expr_16bit : blend_expr_8bit;
-        }
-    }
+    return ret;
+}
+
+static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
+                           char *res, int res_len, int flags)
+{
+    int ret;
+
+    ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
+    if (ret < 0)
+        return ret;
 
-    return s->tblend ? 0 : ff_framesync_configure(&s->fs);
+    return config_params(ctx);
 }
 
 #if CONFIG_BLEND_FILTER
@@ -821,7 +906,7 @@ static const AVFilterPad blend_outputs[] = {
     { NULL }
 };
 
-AVFilter ff_vf_blend = {
+const AVFilter ff_vf_blend = {
     .name          = "blend",
     .description   = NULL_IF_CONFIG_SMALL("Blend two video frames into each other."),
     .preinit       = blend_framesync_preinit,
@@ -834,6 +919,7 @@ AVFilter ff_vf_blend = {
     .outputs       = blend_outputs,
     .priv_class    = &blend_class,
     .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
+    .process_command = process_command,
 };
 
 #endif
@@ -861,11 +947,7 @@ static int tblend_filter_frame(AVFilterLink *inlink, AVFrame *frame)
     return 0;
 }
 
-static const AVOption tblend_options[] = {
-    COMMON_OPTIONS,
-    { NULL }
-};
-
+#define tblend_options blend_options
 AVFILTER_DEFINE_CLASS(tblend);
 
 static const AVFilterPad tblend_inputs[] = {
@@ -886,7 +968,7 @@ static const AVFilterPad tblend_outputs[] = {
     { NULL }
 };
 
-AVFilter ff_vf_tblend = {
+const AVFilter ff_vf_tblend = {
     .name          = "tblend",
     .description   = NULL_IF_CONFIG_SMALL("Blend successive frames."),
     .priv_size     = sizeof(BlendContext),
@@ -897,6 +979,7 @@ AVFilter ff_vf_tblend = {
     .inputs        = tblend_inputs,
     .outputs       = tblend_outputs,
     .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
+    .process_command = process_command,
 };
 
 #endif