From 91cc3aa8b11949ed4faa95076284a2a0db7fa35f Mon Sep 17 00:00:00 2001 From: Paul B Mahol Date: Sat, 15 Sep 2018 14:01:03 +0200 Subject: [PATCH] avfilter/avf_showspectrum: add magma color map --- doc/filters.texi | 4 ++++ libavfilter/avf_showspectrum.c | 14 +++++++++++++- 2 files changed, 17 insertions(+), 1 deletion(-) diff --git a/doc/filters.texi b/doc/filters.texi index 9ffd77736e..20e0a3ec63 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -20506,6 +20506,8 @@ each channel is displayed using the fiery color scheme each channel is displayed using the fruit color scheme @item cool each channel is displayed using the cool color scheme +@item magma +each channel is displayed using the magma color scheme @end table Default value is @samp{channel}. @@ -20655,6 +20657,8 @@ each channel is displayed using the fiery color scheme each channel is displayed using the fruit color scheme @item cool each channel is displayed using the cool color scheme +@item magma +each channel is displayed using the magma color scheme @end table Default value is @samp{intensity}. diff --git a/libavfilter/avf_showspectrum.c b/libavfilter/avf_showspectrum.c index 04fcc8d756..856c2c37b5 100644 --- a/libavfilter/avf_showspectrum.c +++ b/libavfilter/avf_showspectrum.c @@ -44,7 +44,7 @@ enum DisplayMode { COMBINED, SEPARATE, NB_MODES }; enum DataMode { D_MAGNITUDE, D_PHASE, NB_DMODES }; enum DisplayScale { LINEAR, SQRT, CBRT, LOG, FOURTHRT, FIFTHRT, NB_SCALES }; -enum ColorMode { CHANNEL, INTENSITY, RAINBOW, MORELAND, NEBULAE, FIRE, FIERY, FRUIT, COOL, NB_CLMODES }; +enum ColorMode { CHANNEL, INTENSITY, RAINBOW, MORELAND, NEBULAE, FIRE, FIERY, FRUIT, COOL, MAGMA, NB_CLMODES }; enum SlideMode { REPLACE, SCROLL, FULLFRAME, RSCROLL, NB_SLIDES }; enum Orientation { VERTICAL, HORIZONTAL, NB_ORIENTATIONS }; @@ -109,6 +109,7 @@ static const AVOption showspectrum_options[] = { { "fiery", "fiery based coloring", 0, AV_OPT_TYPE_CONST, {.i64=FIERY}, 0, 0, FLAGS, "color" }, { "fruit", "fruit based coloring", 0, AV_OPT_TYPE_CONST, {.i64=FRUIT}, 0, 0, FLAGS, "color" }, { "cool", "cool based coloring", 0, AV_OPT_TYPE_CONST, {.i64=COOL}, 0, 0, FLAGS, "color" }, + { "magma", "magma based coloring", 0, AV_OPT_TYPE_CONST, {.i64=MAGMA}, 0, 0, FLAGS, "color" }, { "scale", "set display scale", OFFSET(scale), AV_OPT_TYPE_INT, {.i64=SQRT}, LINEAR, NB_SCALES-1, FLAGS, "scale" }, { "lin", "linear", 0, AV_OPT_TYPE_CONST, {.i64=LINEAR}, 0, 0, FLAGS, "scale" }, { "sqrt", "square root", 0, AV_OPT_TYPE_CONST, {.i64=SQRT}, 0, 0, FLAGS, "scale" }, @@ -222,6 +223,15 @@ static const struct ColorTable { { 0, 0, 0, 0 }, { .15, 0, .5, -.5 }, { 1, 1, -.5, .5 }}, + [MAGMA] = { + { 0, 0, 0, 0 }, + { 0.10, 23/256., (175-128)/256., (120-128)/256. }, + { 0.23, 43/256., (158-128)/256., (144-128)/256. }, + { 0.35, 85/256., (138-128)/256., (179-128)/256. }, + { 0.48, 96/256., (128-128)/256., (189-128)/256. }, + { 0.64, 128/256., (103-128)/256., (214-128)/256. }, + { 0.78, 167/256., (85-128)/256., (174-128)/256. }, + { 1, 205/256., (80-128)/256., (152-128)/256. }}, }; static av_cold void uninit(AVFilterContext *ctx) @@ -560,6 +570,7 @@ static void color_range(ShowSpectrumContext *s, int ch, case FIERY: case FRUIT: case COOL: + case MAGMA: case INTENSITY: *uf = *yf; *vf = *yf; @@ -946,6 +957,7 @@ static const AVOption showspectrumpic_options[] = { { "fiery", "fiery based coloring", 0, AV_OPT_TYPE_CONST, {.i64=FIERY}, 0, 0, FLAGS, "color" }, { "fruit", "fruit based coloring", 0, AV_OPT_TYPE_CONST, {.i64=FRUIT}, 0, 0, FLAGS, "color" }, { "cool", "cool based coloring", 0, AV_OPT_TYPE_CONST, {.i64=COOL}, 0, 0, FLAGS, "color" }, + { "magma", "magma based coloring", 0, AV_OPT_TYPE_CONST, {.i64=MAGMA}, 0, 0, FLAGS, "color" }, { "scale", "set display scale", OFFSET(scale), AV_OPT_TYPE_INT, {.i64=LOG}, 0, NB_SCALES-1, FLAGS, "scale" }, { "lin", "linear", 0, AV_OPT_TYPE_CONST, {.i64=LINEAR}, 0, 0, FLAGS, "scale" }, { "sqrt", "square root", 0, AV_OPT_TYPE_CONST, {.i64=SQRT}, 0, 0, FLAGS, "scale" },