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video: respect stride alignment when calculating planes offsets

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=694299
This commit is contained in:
Arnaud Vrac 2013-07-18 14:13:33 +02:00 committed by Sebastian Dröge
parent 0bb5065b62
commit 28e1dadbfa
1 changed files with 10 additions and 4 deletions
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14
gst-libs/gst/video/video-info.c
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@ -767,6 +767,7 @@ gst_video_info_align (GstVideoInfo * info, GstVideoAlignment * align)
for (i = 0; i < n_planes; i++) {
gint vedge, hedge, comp;
guint offset;
/* Find the component for this plane, FIXME, we assume the plane number and
* component number is the same for now, for scaling the dimensions this is
@ -780,10 +781,15 @@ gst_video_info_align (GstVideoInfo * info, GstVideoAlignment * align)
vedge =
GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT (vinfo, comp, align->padding_top);
GST_DEBUG ("plane %d: comp: %d, hedge %d vedge %d align %d stride %d", i,
comp, hedge, vedge, align->stride_align[i], info->stride[i]);
info->offset[i] += (vedge * info->stride[i]) +
offset = (vedge * info->stride[i]) +
(hedge * GST_VIDEO_FORMAT_INFO_PSTRIDE (vinfo, comp));
offset = (offset + align->stride_align[i]) & ~align->stride_align[i];
GST_DEBUG ("plane %d: comp: %d, hedge %d vedge %d align %d stride %d "
"offset %u", i, comp, hedge, vedge, align->stride_align[i],
info->stride[i], offset);
info->offset[i] += offset;
}
}