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avfilter/vsrc_testsrc: add complement mode to rgbtestsrc

This commit is contained in:
Paul B Mahol 2021-01-16 15:54:25 +01:00
parent 79f2bca59c
commit 294854bd0a
1 changed files with 32 additions and 2 deletions
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34
libavfilter/vsrc_testsrc.c
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@ -77,6 +77,7 @@ typedef struct TestSourceContext {
/* only used by rgbtest */
uint8_t rgba_map[4];
int complement;
int depth;
/* only used by haldclut */
@ -963,7 +964,13 @@ AVFilter ff_vsrc_testsrc2 = {
#if CONFIG_RGBTESTSRC_FILTER
#define rgbtestsrc_options options
static const AVOption rgbtestsrc_options[] = {
COMMON_OPTIONS
{ "complement", "set complement colors", OFFSET(complement), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
{ "co", "set complement colors", OFFSET(complement), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
{ NULL }
};
AVFILTER_DEFINE_CLASS(rgbtestsrc);
#define R 0
@ -1024,6 +1031,29 @@ static void rgbtest_put_pixel(uint8_t *dstp[4], int dst_linesizep[4],
}
}
static void rgbtest_fill_picture_complement(AVFilterContext *ctx, AVFrame *frame)
{
TestSourceContext *test = ctx->priv;
int x, y, w = frame->width, h = frame->height;
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++) {
int c = (1 << FFMAX(test->depth, 8))*x/w;
int r = 0, g = 0, b = 0;
if (6*y < h ) r = c;
else if (6*y < 2*h) g = c, b = c;
else if (6*y < 3*h) g = c;
else if (6*y < 4*h) r = c, b = c;
else if (6*y < 5*h) b = c;
else r = c, g = c;
rgbtest_put_pixel(frame->data, frame->linesize, x, y, r, g, b,
ctx->outputs[0]->format, test->rgba_map);
}
}
}
static void rgbtest_fill_picture(AVFilterContext *ctx, AVFrame *frame)
{
TestSourceContext *test = ctx->priv;
@ -1049,7 +1079,7 @@ static av_cold int rgbtest_init(AVFilterContext *ctx)
TestSourceContext *test = ctx->priv;
test->draw_once = 1;
test->fill_picture_fn = rgbtest_fill_picture;
test->fill_picture_fn = test->complement ? rgbtest_fill_picture_complement : rgbtest_fill_picture;
return init(ctx);
}