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videoscale: Try to keep DAR when scaling

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Fixes bug #371108.
This commit is contained in:
Andoni Morales 2010-05-10 13:01:44 +02:00 committed by Sebastian Dröge
parent 0a24137100
commit 75a2e14e06
1 changed files with 22 additions and 18 deletions
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40
gst/videoscale/gstvideoscale.c
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@ -335,17 +335,13 @@ gst_video_scale_transform_caps (GstBaseTransform * trans,
"width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
gst_caps_merge_structure (ret, gst_structure_copy (structure));
/* if pixel aspect ratio, make a range of it */
if (gst_structure_get_value (structure, "pixel-aspect-ratio")) {
gst_structure_set (structure,
"pixel-aspect-ratio", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
gst_caps_merge_structure (ret, structure);
} else {
gst_structure_free (structure);
}
gst_caps_merge_structure (ret, gst_structure_copy (structure));
gst_structure_free (structure);
GST_DEBUG_OBJECT (trans, "returning caps: %" GST_PTR_FORMAT, ret);
@ -580,16 +576,8 @@ gst_video_scale_fixate_caps (GstBaseTransform * base, GstPadDirection direction,
from_par_n = gst_value_get_fraction_numerator (from_par);
from_par_d = gst_value_get_fraction_denominator (from_par);
/* fixate the out PAR */
if (!gst_value_is_fixed (to_par)) {
GST_DEBUG_OBJECT (base, "fixating to_par to %dx%d", from_par_n,
from_par_d);
gst_structure_fixate_field_nearest_fraction (outs, "pixel-aspect-ratio",
from_par_n, from_par_d);
}
to_par_n = gst_value_get_fraction_numerator (to_par);
to_par_d = gst_value_get_fraction_denominator (to_par);
gst_structure_get_int (ins, "width", &from_w);
gst_structure_get_int (ins, "height", &from_h);
/* if both width and height are already fixed, we can't do anything
* about it anymore */
@ -600,11 +588,27 @@ gst_video_scale_fixate_caps (GstBaseTransform * base, GstPadDirection direction,
if (count == 2) {
GST_DEBUG_OBJECT (base, "dimensions already set to %dx%d, not fixating",
w, h);
if (!gst_value_is_fixed (to_par)) {
if (gst_video_calculate_display_ratio (&num, &den, from_w, from_h,
from_par_n, from_par_d, w, h)) {
GST_DEBUG_OBJECT (base, "fixating to_par to %dx%d", num, den);
gst_structure_fixate_field_nearest_fraction (outs,
"pixel-aspect-ratio", num, den);
}
}
return;
}
gst_structure_get_int (ins, "width", &from_w);
gst_structure_get_int (ins, "height", &from_h);
/* fixate the out PAR */
if (!gst_value_is_fixed (to_par)) {
GST_DEBUG_OBJECT (base, "fixating to_par to %dx%d", from_par_n,
from_par_d);
gst_structure_fixate_field_nearest_fraction (outs, "pixel-aspect-ratio",
from_par_n, from_par_d);
}
to_par_n = gst_value_get_fraction_numerator (to_par);
to_par_d = gst_value_get_fraction_denominator (to_par);
if (!gst_video_calculate_display_ratio (&num, &den, from_w, from_h,
from_par_n, from_par_d, to_par_n, to_par_d)) {