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videotestsrc: fix undefined behaviour of left-shift

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With a small type for the color values being left-shifted, the result is
undefined and it could potentially overflow.

https://bugzilla.gnome.org/show_bug.cgi?id=729195
This commit is contained in:
Luis de Bethencourt 2014-04-29 10:15:47 -04:00
parent 740258acf6
commit 954db90918
1 changed files with 2 additions and 2 deletions
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4
gst/videotestsrc/videotestsrc.c
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@ -1134,9 +1134,9 @@ paint_tmpline_AYUV (paintinfo * p, int x, int w)
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
value = (p->color->A << 0) | (p->color->Y << 8) |
(p->color->U << 16) | (p->color->V << 24);
(p->color->U << 16) | ((guint32) p->color->V << 24);
#else
value = (p->color->A << 24) | (p->color->Y << 16) |
value = ((guint32) p->color->A << 24) | (p->color->Y << 16) |
(p->color->U << 8) | (p->color->V << 0);
#endif