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avfilter/vf_blend: add multiply128 mode

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2016-02-07 19:24:49 +01:00
parent 0bcffc7924
commit ba618bde7f
3 changed files with 6 additions and 0 deletions
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1
doc/filters.texi
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@ -4138,6 +4138,7 @@ Available values for component modes are:
@item lighten
@item linearlight
@item multiply
@item multiply128
@item negation
@item normal
@item or

1
libavfilter/blend.h
View File

@ -55,6 +55,7 @@ enum BlendMode {
BLEND_LINEARLIGHT,
BLEND_GLOW,
BLEND_ADDITION128,
BLEND_MULTIPLY128,
BLEND_NB
};

4
libavfilter/vf_blend.c
View File

@ -82,6 +82,7 @@ typedef struct ThreadData {
{ "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" },\
@ -229,6 +230,7 @@ DEFINE_BLEND8(addition128, av_clip_uint8(A + B - 128))
DEFINE_BLEND8(average, (A + B) / 2)
DEFINE_BLEND8(subtract, FFMAX(0, A - B))
DEFINE_BLEND8(multiply, MULTIPLY(1, A, B))
DEFINE_BLEND8(multiply128,av_clip_uint8((A - 128) * B / 32. + 128))
DEFINE_BLEND8(negation, 255 - FFABS(255 - A - B))
DEFINE_BLEND8(difference, FFABS(A - B))
DEFINE_BLEND8(difference128, av_clip_uint8(128 + A - B))
@ -268,6 +270,7 @@ DEFINE_BLEND16(addition128, av_clip_uint16(A + B - 32768))
DEFINE_BLEND16(average, (A + B) / 2)
DEFINE_BLEND16(subtract, FFMAX(0, A - B))
DEFINE_BLEND16(multiply, MULTIPLY(1, A, B))
DEFINE_BLEND16(multiply128, av_clip_uint16((A - 32768) * B / 8192. + 32768))
DEFINE_BLEND16(negation, 65535 - FFABS(65535 - A - B))
DEFINE_BLEND16(difference, FFABS(A - B))
DEFINE_BLEND16(difference128, av_clip_uint16(32768 + A - B))
@ -500,6 +503,7 @@ static int config_output(AVFilterLink *outlink)
case BLEND_LIGHTEN: param->blend = is_16bit ? blend_lighten_16bit : blend_lighten_8bit; break;
case BLEND_LINEARLIGHT:param->blend = is_16bit ? blend_linearlight_16bit: blend_linearlight_8bit;break;
case BLEND_MULTIPLY: param->blend = is_16bit ? blend_multiply_16bit : blend_multiply_8bit; break;
case BLEND_MULTIPLY128:param->blend = is_16bit ? blend_multiply128_16bit: blend_multiply128_8bit;break;
case BLEND_NEGATION: param->blend = is_16bit ? blend_negation_16bit : blend_negation_8bit; break;
case BLEND_NORMAL: param->blend = param->opacity == 1 ? blend_normal:
is_16bit ? blend_normal_16bit : blend_normal_8bit; break;