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videoscale: Make sure to allocate enough memory for the temporary buffer

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and fix scaling of odd-height interlaced video.
This commit is contained in:
Sebastian Dröge 2009-07-28 15:54:14 +02:00
parent c51d2febd3
commit b69f5e2c66
1 changed files with 9 additions and 1 deletions
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10
gst/videoscale/gstvideoscale.c
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@ -546,7 +546,8 @@ gst_video_scale_set_caps (GstBaseTransform * trans, GstCaps * in, GstCaps * out)
if (videoscale->tmp_buf)
g_free (videoscale->tmp_buf);
videoscale->tmp_buf = g_malloc (videoscale->dest.stride * 4);
videoscale->tmp_buf =
g_malloc (videoscale->dest.stride * 4 * (videoscale->interlaced ? 2 : 1));
/* FIXME: par */
GST_DEBUG_OBJECT (videoscale, "from=%dx%d, size %d -> to=%dx%d, size %d",
@ -789,6 +790,13 @@ gst_video_scale_transform (GstBaseTransform * trans, GstBuffer * in,
dest.height += 1;
}
} else if (step == 1 && interlaced) {
if (videoscale->from_height % 2 == 1) {
src.height -= 1;
}
if (videoscale->to_height % 2 == 1) {
dest.height -= 1;
}
src.pixels += (src.stride / 2);
dest.pixels += (dest.stride / 2);
}