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avfilter/avf_showspectrum: add fire color map

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2015-12-31 11:15:10 +01:00
parent 4160900899
commit b98c58573b
2 changed files with 14 additions and 1 deletions
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2
doc/filters.texi
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@ -14621,6 +14621,8 @@ each channel is displayed using the rainbow color scheme
each channel is displayed using the moreland color scheme
@item nebulae
each channel is displayed using the nebulae color scheme
@item fire
each channel is displayed using the fire color scheme
@end table
Default value is @samp{channel}.

13
libavfilter/avf_showspectrum.c
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@ -37,7 +37,7 @@
enum DisplayMode { COMBINED, SEPARATE, NB_MODES };
enum DisplayScale { LINEAR, SQRT, CBRT, LOG, NB_SCALES };
enum ColorMode { CHANNEL, INTENSITY, RAINBOW, MORELAND, NEBULAE, NB_CLMODES };
enum ColorMode { CHANNEL, INTENSITY, RAINBOW, MORELAND, NEBULAE, FIRE, NB_CLMODES };
enum SlideMode { REPLACE, SCROLL, FULLFRAME, RSCROLL, NB_SLIDES };
enum Orientation { VERTICAL, HORIZONTAL, NB_ORIENTATIONS };
@ -85,6 +85,7 @@ static const AVOption showspectrum_options[] = {
{ "rainbow", "rainbow based coloring", 0, AV_OPT_TYPE_CONST, {.i64=RAINBOW}, 0, 0, FLAGS, "color" },
{ "moreland", "moreland based coloring", 0, AV_OPT_TYPE_CONST, {.i64=MORELAND}, 0, 0, FLAGS, "color" },
{ "nebulae", "nebulae based coloring", 0, AV_OPT_TYPE_CONST, {.i64=NEBULAE}, 0, 0, FLAGS, "color" },
{ "fire", "fire based coloring", 0, AV_OPT_TYPE_CONST, {.i64=FIRE}, 0, 0, FLAGS, "color" },
{ "scale", "set display scale", OFFSET(scale), AV_OPT_TYPE_INT, {.i64=SQRT}, LINEAR, NB_SCALES-1, FLAGS, "scale" },
{ "sqrt", "square root", 0, AV_OPT_TYPE_CONST, {.i64=SQRT}, 0, 0, FLAGS, "scale" },
{ "cbrt", "cubic root", 0, AV_OPT_TYPE_CONST, {.i64=CBRT}, 0, 0, FLAGS, "scale" },
@ -154,6 +155,15 @@ static const struct ColorTable {
{ 0.77, 120/256., (105-128)/256., (188-128)/256. },
{ 0.87, 140/256., (105-128)/256., (188-128)/256. },
{ 1, 1, 0, 0 }},
[FIRE] = {
{ 0, 0, 0, 0 },
{ 0.23, 44/256., (132-128)/256., (127-128)/256. },
{ 0.45, 62/256., (116-128)/256., (140-128)/256. },
{ 0.57, 75/256., (105-128)/256., (152-128)/256. },
{ 0.67, 95/256., (91-128)/256., (166-128)/256. },
{ 0.77, 126/256., (74-128)/256., (172-128)/256. },
{ 0.87, 164/256., (73-128)/256., (162-128)/256. },
{ 1, 1, 0, 0 }},
};
static av_cold void uninit(AVFilterContext *ctx)
@ -403,6 +413,7 @@ static int plot_spectrum_column(AVFilterLink *inlink, AVFrame *insamples)
case RAINBOW:
case MORELAND:
case NEBULAE:
case FIRE:
case INTENSITY:
uf = yf;
vf = yf;