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tests: Add a test for video blending over transparent frames

Browse source 
And fix the test_overlay_blend test where we blend over a
transparent frame and where expecting wrong results

https://bugzilla.gnome.org/show_bug.cgi?id=681447
This commit is contained in:
Andreas Frisch 2014-11-10 11:11:37 +01:00 committed by Thibault Saunier
parent dfe250d17d
commit 4a85438e5b
1 changed files with 60 additions and 7 deletions
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67
tests/check/libs/video.c
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@ -2515,16 +2515,16 @@ test_overlay_blend_rect_verify (gint x, gint y, gint width, gint height,
for (; i < size - 4; i += 4) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
/* B - G - R - A */
fail_unless_equals_int (data[i], 0x40);
fail_unless_equals_int (data[i + 1], 0x40);
fail_unless_equals_int (data[i + 2], 0x40);
fail_unless_equals_int (data[i + 3], 0x00);
fail_unless_equals_int (data[i], 0x80);
fail_unless_equals_int (data[i + 1], 0x80);
fail_unless_equals_int (data[i + 2], 0x80);
fail_unless_equals_int (data[i + 3], 0x80);
#else
/* A - R - G - B */
fail_unless_equals_int (data[i], 0x00);
fail_unless_equals_int (data[i + 1], 0x40);
fail_unless_equals_int (data[i + 2], 0x40);
fail_unless_equals_int (data[i + 3], 0x40);
fail_unless_equals_int (data[i + 1], 0x80);
fail_unless_equals_int (data[i + 2], 0x80);
fail_unless_equals_int (data[i + 3], 0x80);
#endif
if ((i + 4) == (4 * (((((y > 0) ? (y + temp_height) : temp_height) -
1) * VIDEO_WIDTH) + ((x >
@ -2635,6 +2635,58 @@ GST_START_TEST (test_overlay_blend)
GST_END_TEST;
GST_START_TEST (test_overlay_composition_over_transparency)
{
GstVideoOverlayComposition *comp1;
GstVideoOverlayRectangle *rect1;
GstBuffer *pix1, *pix2;
GstVideoInfo vinfo;
guint8 *data;
GstVideoFrame video_frame;
guint fwidth = 200, height = 50, swidth = 100;
memset (&video_frame, 0, sizeof (GstVideoFrame));
pix1 = gst_buffer_new_and_alloc (fwidth * sizeof (guint32) * height);
gst_buffer_memset (pix1, 0, 0x00, gst_buffer_get_size (pix1));
gst_video_info_init (&vinfo);
gst_video_info_set_format (&vinfo, GST_VIDEO_OVERLAY_COMPOSITION_FORMAT_RGB,
fwidth, height);
gst_video_frame_map (&video_frame, &vinfo, pix1, GST_MAP_READWRITE);
gst_buffer_unref (pix1);
pix2 = gst_buffer_new_and_alloc (swidth * sizeof (guint32) * height);
gst_buffer_memset (pix2, 0, 0xFF, gst_buffer_get_size (pix2));
gst_buffer_add_video_meta (pix2, GST_VIDEO_FRAME_FLAG_NONE,
GST_VIDEO_OVERLAY_COMPOSITION_FORMAT_RGB, swidth, height);
rect1 = gst_video_overlay_rectangle_new_raw (pix2, swidth, 0,
swidth, height, GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
comp1 = gst_video_overlay_composition_new (rect1);
fail_unless (gst_video_overlay_composition_blend (comp1, &video_frame));
gst_video_overlay_composition_unref (comp1);
data = GST_VIDEO_FRAME_PLANE_DATA (&video_frame, 0);
fail_unless_equals_int (data[0], 0x00);
fail_unless_equals_int (data[1], 0x00);
fail_unless_equals_int (data[2], 0x00);
fail_unless_equals_int (data[3], 0x00);
data += swidth * sizeof (guint32);
fail_unless_equals_int (data[0], 0xFF);
fail_unless_equals_int (data[1], 0xFF);
fail_unless_equals_int (data[2], 0xFF);
fail_unless_equals_int (data[3], 0xFF);
gst_video_frame_unmap (&video_frame);
}
GST_END_TEST;
static Suite *
video_suite (void)
{
@ -2668,6 +2720,7 @@ video_suite (void)
tcase_add_test (tc_chain, test_video_transfer);
tcase_add_test (tc_chain, test_overlay_blend);
tcase_add_test (tc_chain, test_video_center_rect);
tcase_add_test (tc_chain, test_overlay_composition_over_transparency);
return s;
}