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avfilter/vf_vectorscope: make intensity user configurable 

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2015-08-23 11:54:16 +00:00
parent ee155c18a2
commit c34c050303
2 changed files with 12 additions and 5 deletions
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4
doc/filters.texi
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@ -10533,6 +10533,10 @@ Set which color component will be represented on X-axis. Default is @code{1}.
@item y
Set which color component will be represented on Y-axis. Default is @code{2}.
@item intensity
Set intensity, used by modes: gray, color and color3 for increasing brightness
of color component which represents frequency of (X, Y) location in graph.
@end table
@anchor{vidstabdetect}

13
libavfilter/vf_vectorscope.c
View File

@ -38,6 +38,7 @@ enum VectorscopeMode {
typedef struct VectorscopeContext {
const AVClass *class;
int mode;
int intensity;
const uint8_t *bg_color;
int planewidth[4];
int planeheight[4];
@ -56,6 +57,7 @@ static const AVOption vectorscope_options[] = {
{ "color3", 0, 0, AV_OPT_TYPE_CONST, {.i64=COLOR3}, 0, 0, FLAGS, "mode" },
{ "x", "set color component on X axis", OFFSET(x), AV_OPT_TYPE_INT, {.i64=1}, 0, 2, FLAGS},
{ "y", "set color component on Y axis", OFFSET(y), AV_OPT_TYPE_INT, {.i64=2}, 0, 2, FLAGS},
{ "intensity", "set intensity", OFFSET(intensity), AV_OPT_TYPE_INT, {.i64=1}, 1, 255, FLAGS},
{ NULL }
};
@ -182,6 +184,7 @@ static void vectorscope(VectorscopeContext *s, AVFrame *in, AVFrame *out, int pd
const int slinesizex = in->linesize[s->x];
const int slinesizey = in->linesize[s->y];
const int dlinesize = out->linesize[0];
const int intensity = s->intensity;
int i, j, px = s->x, py = s->y;
const int h = s->planeheight[py];
const int w = s->planewidth[px];
@ -204,7 +207,7 @@ static void vectorscope(VectorscopeContext *s, AVFrame *in, AVFrame *out, int pd
const int y = spy[iwy + j];
const int pos = y * dlinesize + x;
dpd[pos] = FFMIN(dpd[pos] + 1, 255);
dpd[pos] = FFMIN(dpd[pos] + intensity, 255);
if (dst[3])
dst[3][pos] = 255;
}
@ -218,9 +221,9 @@ static void vectorscope(VectorscopeContext *s, AVFrame *in, AVFrame *out, int pd
const int y = spy[iwy + j];
const int pos = y * dlinesize + x;
dst[0][pos] = FFMIN(dst[0][pos] + 1, 255);
dst[1][pos] = FFMIN(dst[1][pos] + 1, 255);
dst[2][pos] = FFMIN(dst[2][pos] + 1, 255);
dst[0][pos] = FFMIN(dst[0][pos] + intensity, 255);
dst[1][pos] = FFMIN(dst[1][pos] + intensity, 255);
dst[2][pos] = FFMIN(dst[2][pos] + intensity, 255);
if (dst[3])
dst[3][pos] = 255;
}
@ -283,7 +286,7 @@ static void vectorscope(VectorscopeContext *s, AVFrame *in, AVFrame *out, int pd
const int y = spy[iw2 + j];
const int pos = y * dlinesize + x;
dpd[pos] = FFMIN(255, dpd[pos] + 1);
dpd[pos] = FFMIN(255, dpd[pos] + intensity);
dpx[pos] = x;
dpy[pos] = y;
if (dst[3])