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ximagesrc: only extrapolate alpha mask for 32-bit depth

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Instead of passing bogus alpha mask values when there's no alpha.

https://bugzilla.gnome.org/show_bug.cgi?id=726833
This commit is contained in:
Tim-Philipp Müller 2014-03-27 19:51:50 +00:00 committed by Nicolas Dufresne
parent 0918662624
commit 39fc394254
1 changed files with 6 additions and 2 deletions
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8
sys/ximage/gstximagesrc.c
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@ -1073,8 +1073,12 @@ gst_ximage_src_get_caps (GstBaseSrc * bs, GstCaps * filter)
GST_DEBUG ("width = %d, height=%d", width, height);
/* extrapolate alpha mask */
alpha_mask = ~(xcontext->r_mask_output
| xcontext->g_mask_output | xcontext->b_mask_output);
if (xcontext->depth == 32) {
alpha_mask = ~(xcontext->r_mask_output
| xcontext->g_mask_output | xcontext->b_mask_output);
} else {
alpha_mask = 0;
}
format =
gst_video_format_from_masks (xcontext->depth, xcontext->bpp,