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videobox: Fix AYUV->I420 conversion

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For this fix the averaging of the chroma values. It should't be (a/2 + b)/2
but just (a + b)/2.

Fixes bug #594599.
This commit is contained in:
Sebastian Dröge 2009-09-09 16:02:03 +02:00
parent 42ee5e22a2
commit a9909c1abf
1 changed files with 2 additions and 2 deletions
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4
gst/videobox/gstvideobox.c
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@ -951,8 +951,8 @@ gst_video_box_ayuv_i420 (GstVideoBox * video_box, guint8 * src, guint8 * dest)
Vtemp[UVfloor (a + j)] = Vtemp[UVfloor (a + j)] =
(Vtemp[UVfloor (a + j)] + ((guint8 *) & src_loc1[j])[3]) / 2; (Vtemp[UVfloor (a + j)] + ((guint8 *) & src_loc1[j])[3]) / 2;
} else { } else {
Utemp[UVfloor (a + j)] = ((guint8 *) & src_loc1[j])[2] / 2; Utemp[UVfloor (a + j)] = ((guint8 *) & src_loc1[j])[2];
Vtemp[UVfloor (a + j)] = ((guint8 *) & src_loc1[j])[3] / 2; Vtemp[UVfloor (a + j)] = ((guint8 *) & src_loc1[j])[3];
} }
} }
Ydest += crop_w; Ydest += crop_w;