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| author | Michael Niedermayer <michaelni@gmx.at> | 2013-03-27 16:19:50 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2013-03-27 16:21:44 +0100 |
| commit | 79938a4e9748174146a7b2ecddbb23208c776e77 (patch) | |
| tree | c09f54398cc30eb925bc6e67e9ffeffdb42ee22a | |
| parent | a2b58256490d18828f6d5a014ba585fbee3eab61 (diff) | |
| download | ffmpeg-79938a4e9748174146a7b2ecddbb23208c776e77.tar.gz | |
mandelbrot: add outer coloring method showing bailouted z
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavfilter/vsrc_mandelbrot.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libavfilter/vsrc_mandelbrot.c b/libavfilter/vsrc_mandelbrot.c index b9487dd2d1..c323d103a8 100644 --- a/libavfilter/vsrc_mandelbrot.c +++ b/libavfilter/vsrc_mandelbrot.c @@ -42,6 +42,7 @@ enum Outer{ ITERATION_COUNT, NORMALIZED_ITERATION_COUNT, WHITE, + OUTZ, }; enum Inner{ @@ -98,6 +99,7 @@ static const AVOption mandelbrot_options[] = { {"iteration_count", "set iteration count mode", 0, AV_OPT_TYPE_CONST, {.i64=ITERATION_COUNT}, INT_MIN, INT_MAX, FLAGS, "outer" }, {"normalized_iteration_count", "set normalized iteration count mode", 0, AV_OPT_TYPE_CONST, {.i64=NORMALIZED_ITERATION_COUNT}, INT_MIN, INT_MAX, FLAGS, "outer" }, {"white", "set white mode", 0, AV_OPT_TYPE_CONST, {.i64=WHITE}, INT_MIN, INT_MAX, FLAGS, "outer" }, + {"outz", "set outz mode", 0, AV_OPT_TYPE_CONST, {.i64=OUTZ}, INT_MIN, INT_MAX, FLAGS, "outer" }, {"inner", "set inner coloring mode", OFFSET(inner), AV_OPT_TYPE_INT, {.i64=MINCOL}, 0, INT_MAX, FLAGS, "inner" }, {"black", "set black mode", 0, AV_OPT_TYPE_CONST, {.i64=BLACK}, INT_MIN, INT_MAX, FLAGS, "inner"}, @@ -330,6 +332,11 @@ static void draw_mandelbrot(AVFilterContext *ctx, uint32_t *color, int linesize, break; case WHITE: c = 0xFFFFFF; + break; + case OUTZ: + zr /= mb->bailout; + zi /= mb->bailout; + c = (((int)(zr*128+128))&0xFF)*256 + (((int)(zi*128+128))&0xFF); } break; } |