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videorate: Improve upstream negotiation

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Put peer pad caps preferred framerates first, indicating
they are videorate's first choices, removing an unnecessary
conversion.

Fixes #608025
This commit is contained in:
Thiago Santos 2010-01-27 15:07:47 -03:00
parent ff21fe1d25
commit 616f130d05
1 changed files with 17 additions and 2 deletions
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19
gst/videorate/gstvideorate.c
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@ -209,6 +209,8 @@ gst_video_rate_transformcaps (GstPad * in_pad, GstCaps * in_caps,
GstCaps *intersect;
const GstCaps *in_templ;
gint i;
GSList *extra_structures = NULL;
GSList *iter;
in_templ = gst_pad_get_pad_template_caps (in_pad);
intersect = gst_caps_intersect (in_caps, in_templ);
@ -219,9 +221,22 @@ gst_video_rate_transformcaps (GstPad * in_pad, GstCaps * in_caps,
structure = gst_caps_get_structure (intersect, i);
gst_structure_set (structure,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
if (gst_structure_has_field (structure, "framerate")) {
GstStructure *copy_structure;
copy_structure = gst_structure_copy (structure);
gst_structure_set (copy_structure,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
extra_structures = g_slist_append (extra_structures, copy_structure);
}
}
/* append the extra structures */
for (iter = extra_structures; iter != NULL; iter = g_slist_next (iter)) {
gst_caps_append_structure (intersect, (GstStructure *) iter->data);
}
g_slist_free (extra_structures);
*out_caps = intersect;
return TRUE;