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videotestsrc: Add ball pattern

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This commit is contained in:
David Schleef 2010-08-22 22:16:45 -07:00
parent b2051090b4
commit c831456188
4 changed files with 119 additions and 1 deletions
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4
gst/videotestsrc/gstvideotestsrc.c
View file

@ -129,6 +129,7 @@ gst_video_test_src_pattern_get_type (void)
{GST_VIDEO_TEST_SRC_CHROMA_ZONE_PLATE, "Chroma zone plate",
"chroma-zone-plate"},
{GST_VIDEO_TEST_SRC_SOLID, "Solid color", "solid-color"},
{GST_VIDEO_TEST_SRC_BALL, "Moving ball", "ball"},
{0, NULL, NULL}
};
@ -387,6 +388,9 @@ gst_video_test_src_set_pattern (GstVideoTestSrc * videotestsrc,
case GST_VIDEO_TEST_SRC_SOLID:
videotestsrc->make_image = gst_video_test_src_solid;
break;
case GST_VIDEO_TEST_SRC_BALL:
videotestsrc->make_image = gst_video_test_src_ball;
break;
default:
g_assert_not_reached ();
}

4
gst/videotestsrc/gstvideotestsrc.h
View file

@ -56,6 +56,7 @@ G_BEGIN_DECLS
* @GST_VIDEO_TEST_SRC_ZONE_PLATE: Zone plate
* @GST_VIDEO_TEST_SRC_GAMUT: Gamut checking pattern
* @GST_VIDEO_TEST_SRC_CHROMA_ZONE_PLATE: Chroma zone plate
* @GST_VIDEO_TEST_SRC_BALL: Moving ball
*
* The test pattern to produce.
*
@ -94,7 +95,8 @@ typedef enum {
GST_VIDEO_TEST_SRC_ZONE_PLATE,
GST_VIDEO_TEST_SRC_GAMUT,
GST_VIDEO_TEST_SRC_CHROMA_ZONE_PLATE,
GST_VIDEO_TEST_SRC_SOLID
GST_VIDEO_TEST_SRC_SOLID,
GST_VIDEO_TEST_SRC_BALL
} GstVideoTestSrcPattern;
/**

110
gst/videotestsrc/videotestsrc.c
View file

@ -1793,6 +1793,116 @@ gst_video_test_src_gamut (GstVideoTestSrc * v, guchar * dest, int w, int h)
}
}
void
gst_video_test_src_ball (GstVideoTestSrc * v, unsigned char *dest, int w, int h)
{
int i;
paintinfo pi = { NULL, };
paintinfo *p = π
struct fourcc_list_struct *fourcc;
struct vts_color_struct_yuv yuv_primary = { 0 };
struct vts_color_struct_yuv yuv_secondary = { 0 };
struct vts_color_struct_rgb rgb_primary = { 0 };
struct vts_color_struct_rgb rgb_secondary = { 0 };
struct vts_color_struct_gray gray_primary = { 0 };
struct vts_color_struct_gray gray_secondary = { 0 };
static int t = 0;
double x, y;
int radius = 20;
p->rgb_colors = vts_colors_rgb;
if (v->color_spec == GST_VIDEO_TEST_SRC_BT601) {
p->yuv_colors = vts_colors_bt601_ycbcr_100;
} else {
p->yuv_colors = vts_colors_bt709_ycbcr_100;
}
p->gray_colors = vts_colors_gray_100;
p->width = w;
p->height = h;
fourcc = v->fourcc;
if (fourcc == NULL)
return;
fourcc->paint_setup (p, dest);
p->paint_hline = fourcc->paint_hline;
rgb_primary = p->rgb_colors[COLOR_WHITE];
gray_primary = p->gray_colors[COLOR_WHITE];
yuv_primary = p->yuv_colors[COLOR_WHITE];
rgb_secondary = p->rgb_colors[COLOR_RED];
gray_secondary = p->gray_colors[COLOR_RED];
yuv_secondary = p->yuv_colors[COLOR_RED];
x = radius + (0.5 + 0.5 * sin (2 * M_PI * t / 200)) * (w - 2 * radius);
y = radius + (0.5 + 0.5 * sin (2 * M_PI * sqrt (2) * t / 200)) * (h -
2 * radius);
for (i = 0; i < h; i++) {
if (i < y - radius || i > y + radius) {
p->rgb_color = &rgb_primary;
p->yuv_color = &yuv_primary;
p->gray_color = &gray_primary;
p->paint_hline (p, 0, i, w);
} else {
int r = rint (sqrt (radius * radius - (i - y) * (i - y)));
int x1, x2;
int j;
p->rgb_color = &rgb_primary;
p->yuv_color = &yuv_primary;
p->gray_color = &gray_primary;
x1 = 0;
x2 = MAX (0, x - r);
p->paint_hline (p, x1, i, x2 - x1);
x1 = MAX (0, x - r);
x2 = MIN (w, x + r + 1);
for (j = x1; j < x2; j++) {
double rr = radius - sqrt ((j - x) * (j - x) + (i - y) * (i - y));
struct vts_color_struct_yuv yuv;
struct vts_color_struct_rgb rgb;
struct vts_color_struct_gray gray;
rr *= 0.5;
if (rr < 0) {
p->rgb_color = &rgb_primary;
p->yuv_color = &yuv_primary;
p->gray_color = &gray_primary;
} else if (rr > 1) {
p->rgb_color = &rgb_secondary;
p->yuv_color = &yuv_secondary;
p->gray_color = &gray_secondary;
} else {
#define BLEND(a,b,x) (rint((a)*(1-x) + (b)*(x)))
yuv.Y = BLEND (yuv_primary.Y, yuv_secondary.Y, rr);
yuv.U = BLEND (yuv_primary.U, yuv_secondary.U, rr);
yuv.V = BLEND (yuv_primary.V, yuv_secondary.V, rr);
rgb.R = BLEND (rgb_primary.R, rgb_secondary.R, rr);
rgb.G = BLEND (rgb_primary.G, rgb_secondary.G, rr);
rgb.B = BLEND (rgb_primary.B, rgb_secondary.B, rr);
gray.G = BLEND (gray_primary.G, gray_secondary.G, rr);
p->yuv_color = &yuv;
p->rgb_color = &rgb;
p->gray_color = &gray;
}
p->paint_hline (p, j, i, 1);
}
p->rgb_color = &rgb_primary;
p->yuv_color = &yuv_primary;
p->gray_color = &gray_primary;
x1 = MIN (w, x + r + 1);
x2 = w;
p->paint_hline (p, x1, i, x2 - x1);
}
}
t++;
}
static void
paint_setup_I420 (paintinfo * p, unsigned char *dest)
{

2
gst/videotestsrc/videotestsrc.h
View file

@ -120,6 +120,8 @@ void gst_video_test_src_gamut (GstVideoTestSrc * v,
unsigned char *dest, int w, int h);
void gst_video_test_src_chromazoneplate (GstVideoTestSrc * v,
unsigned char *dest, int w, int h);
void gst_video_test_src_ball (GstVideoTestSrc * v,
unsigned char *dest, int w, int h);
extern struct fourcc_list_struct fourcc_list[];
extern int n_fourccs;