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videoscale: Use passthrough mode if width and height are not changed

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It doesn't matter if the PAR changes or not, processing of every pixel
is only necessary when the width or height changes.
This commit is contained in:
Sebastian Dröge 2010-05-13 12:16:38 +02:00
parent 9696af170f
commit a6a125e4ba
1 changed files with 4 additions and 2 deletions
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6
gst/videoscale/gstvideoscale.c
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@ -264,8 +264,6 @@ gst_video_scale_class_init (GstVideoScaleClass * klass)
trans_class->transform = GST_DEBUG_FUNCPTR (gst_video_scale_transform);
trans_class->fixate_caps = GST_DEBUG_FUNCPTR (gst_video_scale_fixate_caps);
trans_class->src_event = GST_DEBUG_FUNCPTR (gst_video_scale_src_event);
trans_class->passthrough_on_same_caps = TRUE;
}
static void
@ -545,6 +543,10 @@ gst_video_scale_set_caps (GstBaseTransform * trans, GstCaps * in, GstCaps * out)
if (to_dar_n != from_dar_n || to_dar_d != from_dar_d)
GST_WARNING_OBJECT (videoscale, "Can't keep DAR!");
gst_base_transform_set_passthrough (trans,
(videoscale->from_width == videoscale->to_width
&& videoscale->from_height == videoscale->to_height));
GST_DEBUG_OBJECT (videoscale, "from=%dx%d (par=%d/%d dar=%d/%d), size %d "
"-> to=%dx%d (par=%d/%d dar=%d/%d), size %d",
videoscale->from_width, videoscale->from_height, from_par_n, from_par_d,