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authorStefano Sabatini <stefasab@gmail.com>2014-12-04 12:34:30 +0100
committerStefano Sabatini <stefasab@gmail.com>2014-12-26 11:24:48 +0100
commitafaa4a89463187fe98042ba6bab0269ba4b4ba47 (patch)
treef9faf5c73dd6edd7d696a3aa81aabdf2311a8b53
parent7c210c442462db78e05569ee23d4dd955c1b1a0b (diff)
downloadffmpeg-afaa4a89463187fe98042ba6bab0269ba4b4ba47.tar.gz
lavfi/blend: add difference128 mode
-rw-r--r--doc/filters.texi1
-rw-r--r--libavfilter/version.h2
-rw-r--r--libavfilter/vf_blend.c4
3 files changed, 6 insertions, 1 deletions
diff --git a/doc/filters.texi b/doc/filters.texi
index aa8bb610a9..aaa3083a70 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -2661,6 +2661,7 @@ Available values for component modes are:
@item burn
@item darken
@item difference
+@item difference128
@item divide
@item dodge
@item exclusion
diff --git a/libavfilter/version.h b/libavfilter/version.h
index 5c7489f908..4afcbe0f80 100644
--- a/libavfilter/version.h
+++ b/libavfilter/version.h
@@ -31,7 +31,7 @@
#define LIBAVFILTER_VERSION_MAJOR 5
#define LIBAVFILTER_VERSION_MINOR 5
-#define LIBAVFILTER_VERSION_MICRO 101
+#define LIBAVFILTER_VERSION_MICRO 102
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
LIBAVFILTER_VERSION_MINOR, \
diff --git a/libavfilter/vf_blend.c b/libavfilter/vf_blend.c
index 8bf19ffd50..1b3ba95b1a 100644
--- a/libavfilter/vf_blend.c
+++ b/libavfilter/vf_blend.c
@@ -41,6 +41,7 @@ enum BlendMode {
BLEND_BURN,
BLEND_DARKEN,
BLEND_DIFFERENCE,
+ BLEND_DIFFERENCE128,
BLEND_DIVIDE,
BLEND_DODGE,
BLEND_EXCLUSION,
@@ -112,6 +113,7 @@ static const AVOption blend_options[] = {
{ "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_DIFFERENCE128}, 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" },
@@ -190,6 +192,7 @@ DEFINE_BLEND(subtract, FFMAX(0, A - B))
DEFINE_BLEND(multiply, MULTIPLY(1, A, B))
DEFINE_BLEND(negation, 255 - FFABS(255 - A - B))
DEFINE_BLEND(difference, FFABS(A - B))
+DEFINE_BLEND(difference128, av_clip_uint8(128 + A - B))
DEFINE_BLEND(screen, SCREEN(1, A, B))
DEFINE_BLEND(overlay, (A < 128) ? MULTIPLY(2, A, B) : SCREEN(2, A, B))
DEFINE_BLEND(hardlight, (B < 128) ? MULTIPLY(2, B, A) : SCREEN(2, B, A))
@@ -310,6 +313,7 @@ static av_cold int init(AVFilterContext *ctx)
case BLEND_BURN: param->blend = blend_burn; break;
case BLEND_DARKEN: param->blend = blend_darken; break;
case BLEND_DIFFERENCE: param->blend = blend_difference; break;
+ case BLEND_DIFFERENCE128: param->blend = blend_difference128; break;
case BLEND_DIVIDE: param->blend = blend_divide; break;
case BLEND_DODGE: param->blend = blend_dodge; break;
case BLEND_EXCLUSION: param->blend = blend_exclusion; break;