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video: Fix non-default usage of gst_video_sink_center_rect

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Make sure we take into account non-0 x/y destination rectangles
This commit is contained in:
Edward Hervey 2014-12-15 14:10:17 +01:00
parent c77a21b1fa
commit ff57f69134
2 changed files with 68 additions and 8 deletions
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16
gst-libs/gst/video/gstvideosink.c
View file

@ -87,8 +87,8 @@ gst_video_sink_center_rect (GstVideoRectangle src, GstVideoRectangle dst,
if (!scaling) {
result->w = MIN (src.w, dst.w);
result->h = MIN (src.h, dst.h);
result->x = (dst.w - result->w) / 2;
result->y = (dst.h - result->h) / 2;
result->x = dst.x + (dst.w - result->w) / 2;
result->y = dst.y + (dst.h - result->h) / 2;
} else {
gdouble src_ratio, dst_ratio;
@ -98,16 +98,16 @@ gst_video_sink_center_rect (GstVideoRectangle src, GstVideoRectangle dst,
if (src_ratio > dst_ratio) {
result->w = dst.w;
result->h = dst.w / src_ratio;
result->x = 0;
result->y = (dst.h - result->h) / 2;
result->x = dst.x;
result->y = dst.y + (dst.h - result->h) / 2;
} else if (src_ratio < dst_ratio) {
result->w = dst.h * src_ratio;
result->h = dst.h;
result->x = (dst.w - result->w) / 2;
result->y = 0;
result->x = dst.x + (dst.w - result->w) / 2;
result->y = dst.y;
} else {
result->x = 0;
result->y = 0;
result->x = dst.x;
result->y = dst.y;
result->w = dst.w;
result->h = dst.h;
}

60
tests/check/libs/video.c
View file

@ -2277,6 +2277,65 @@ GST_START_TEST (test_video_transfer)
GST_END_TEST;
GST_START_TEST (test_video_center_rect)
{
GstVideoRectangle src, dest, result, expected;
#define NEW_RECT(x,y,w,h) ((GstVideoRectangle) {x,y,w,h})
#define CHECK_RECT(res, exp) \
fail_unless_equals_int(exp.x, res.x);\
fail_unless_equals_int(exp.y, res.y);\
fail_unless_equals_int(exp.w, res.w);\
fail_unless_equals_int(exp.h, res.h);
/* 1:1 Aspect Ratio */
src = NEW_RECT (0, 0, 100, 100);
dest = NEW_RECT (0, 0, 100, 100);
expected = NEW_RECT (0, 0, 100, 100);
gst_video_sink_center_rect (src, dest, &result, TRUE);
CHECK_RECT (result, expected);
src = NEW_RECT (0, 0, 100, 100);
dest = NEW_RECT (0, 0, 50, 50);
expected = NEW_RECT (0, 0, 50, 50);
gst_video_sink_center_rect (src, dest, &result, TRUE);
CHECK_RECT (result, expected);
src = NEW_RECT (0, 0, 100, 100);
dest = NEW_RECT (50, 50, 100, 100);
expected = NEW_RECT (50, 50, 100, 100);
gst_video_sink_center_rect (src, dest, &result, TRUE);
CHECK_RECT (result, expected);
/* Aspect ratio scaling (tall) */
src = NEW_RECT (0, 0, 50, 100);
dest = NEW_RECT (0, 0, 50, 50);
expected = NEW_RECT (12, 0, 25, 50);
gst_video_sink_center_rect (src, dest, &result, TRUE);
CHECK_RECT (result, expected);
src = NEW_RECT (0, 0, 50, 100);
dest = NEW_RECT (50, 50, 50, 50);
expected = NEW_RECT (62, 50, 25, 50);
gst_video_sink_center_rect (src, dest, &result, TRUE);
CHECK_RECT (result, expected);
/* Aspect ratio scaling (wide) */
src = NEW_RECT (0, 0, 100, 50);
dest = NEW_RECT (0, 0, 50, 50);
expected = NEW_RECT (0, 12, 50, 25);
gst_video_sink_center_rect (src, dest, &result, TRUE);
CHECK_RECT (result, expected);
src = NEW_RECT (0, 0, 100, 50);
dest = NEW_RECT (50, 50, 50, 50);
expected = NEW_RECT (50, 62, 50, 25);
gst_video_sink_center_rect (src, dest, &result, TRUE);
CHECK_RECT (result, expected);
}
GST_END_TEST;
void test_overlay_blend_rect (gint x, gint y, gint width, gint height,
GstVideoFrame * video_frame);
void test_overlay_blend_rect_verify (gint x, gint y, gint width,
@ -2470,6 +2529,7 @@ video_suite (void)
tcase_add_test (tc_chain, test_video_size_convert);
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);
return s;
}