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videoscale: Log PAR and DAR of input and output caps when setting caps

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This commit is contained in:
Sebastian Dröge 2010-05-10 15:13:20 +02:00
parent eb2166c97d
commit 9f677090d5
1 changed files with 39 additions and 4 deletions
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43
gst/videoscale/gstvideoscale.c
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@ -488,6 +488,10 @@ gst_video_scale_set_caps (GstBaseTransform * trans, GstCaps * in, GstCaps * out)
{
GstVideoScale *videoscale = GST_VIDEO_SCALE (trans);
gboolean ret;
const GstStructure *ins, *outs;
gint from_dar_n, from_dar_d, to_dar_n, to_dar_d;
gint from_par_n, from_par_d, to_par_n, to_par_d;
gint gcd;
ret = parse_caps (in, &videoscale->format, &videoscale->from_width,
&videoscale->from_height, &videoscale->interlaced);
@ -515,10 +519,41 @@ gst_video_scale_set_caps (GstBaseTransform * trans, GstCaps * in, GstCaps * out)
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",
videoscale->from_width, videoscale->from_height, videoscale->src_size,
videoscale->to_width, videoscale->to_height, videoscale->dest_size);
ins = gst_caps_get_structure (in, 0);
outs = gst_caps_get_structure (out, 0);
if (!gst_structure_get_fraction (ins, "pixel-aspect-ratio", &from_par_n,
&from_par_d))
from_par_n = from_par_d = 1;
if (!gst_structure_get_fraction (outs, "pixel-aspect-ratio", &to_par_n,
&to_par_d))
to_par_n = to_par_d = 1;
if (gst_util_fraction_multiply (videoscale->from_width,
videoscale->from_height, from_par_n, from_par_d, &from_dar_n,
&from_dar_d)) {
gcd = gst_util_greatest_common_divisor (from_dar_n, from_dar_d);
from_dar_n /= gcd;
from_dar_d /= gcd;
} else {
from_dar_n = from_dar_d = -1;
}
if (gst_util_fraction_multiply (videoscale->to_width, videoscale->to_height,
to_par_n, to_par_d, &to_dar_n, &to_dar_d)) {
gcd = gst_util_greatest_common_divisor (to_dar_n, to_dar_d);
to_dar_n /= gcd;
to_dar_d /= gcd;
} else {
to_dar_n = to_dar_d = -1;
}
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,
from_dar_n, from_dar_d, videoscale->src_size, videoscale->to_width,
videoscale->to_height, to_par_n, to_par_d, to_dar_n, to_dar_d,
videoscale->dest_size);
done:
return ret;