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gst/gstpad.c: Implement default fixation once again, so that gst_pad_fixate() actually does anything at all. This pro...

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Original commit message from CVS:
* gst/gstpad.c: (fixate_value), (gst_pad_default_fixate),
(gst_pad_fixate_caps):
Implement default fixation once again, so that gst_pad_fixate()
actually does anything at all. This probably needs to be some
sort of a last resort, and use profile-based fixation first, but
since that doesn't exist yet, this is the best we have. Fixes
visualization in Totem.
This commit is contained in:
Ronald S. Bultje 2005-07-25 12:31:08 +00:00
parent 9f06376bab
commit 8de129adc4
2 changed files with 76 additions and 0 deletions
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10
ChangeLog
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@ -1,3 +1,13 @@
2005-07-25 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
* gst/gstpad.c: (fixate_value), (gst_pad_default_fixate),
(gst_pad_fixate_caps):
Implement default fixation once again, so that gst_pad_fixate()
actually does anything at all. This probably needs to be some
sort of a last resort, and use profile-based fixation first, but
since that doesn't exist yet, this is the best we have. Fixes
visualization in Totem.
2005-07-22 Wim Taymans <wim@fluendo.com>
* docs/design/part-events.txt:

66
gst/gstpad.c
View file

@ -1719,6 +1719,64 @@ was_dispatching:
}
}
static gboolean
fixate_value (GValue * dest, const GValue * src)
{
if (G_VALUE_TYPE (src) == GST_TYPE_INT_RANGE) {
g_value_init (dest, G_TYPE_INT);
g_value_set_int (dest, gst_value_get_int_range_min (src));
} else if (G_VALUE_TYPE (src) == GST_TYPE_DOUBLE_RANGE) {
g_value_init (dest, G_TYPE_DOUBLE);
g_value_set_double (dest, gst_value_get_double_range_min (src));
} else if (G_VALUE_TYPE (src) == GST_TYPE_LIST) {
GValue temp = { 0 };
gst_value_init_and_copy (&temp, gst_value_list_get_value (src, 0));
if (!fixate_value (dest, &temp))
gst_value_init_and_copy (dest, &temp);
g_value_unset (&temp);
} else if (G_VALUE_TYPE (src) == GST_TYPE_ARRAY) {
gboolean res = FALSE;
gint n;
g_value_init (dest, GST_TYPE_ARRAY);
for (n = 0; n < gst_value_list_get_size (src); n++) {
GValue kid = { 0 };
const GValue *orig_kid = gst_value_list_get_value (src, n);
if (!fixate_value (&kid, orig_kid))
gst_value_init_and_copy (&kid, orig_kid);
else
res = TRUE;
gst_value_list_append_value (dest, &kid);
g_value_unset (&kid);
}
if (!res)
g_value_unset (dest);
return res;
} else {
return FALSE;
}
return TRUE;
}
static gboolean
gst_pad_default_fixate (GQuark field_id, const GValue * value, gpointer data)
{
GstStructure *s = data;
GValue v = { 0 };
if (fixate_value (&v, value)) {
gst_structure_id_set_value (s, field_id, &v);
g_value_unset (&v);
}
return TRUE;
}
/**
* gst_pad_fixate_caps:
* @pad: a #GstPad to fixate
@ -1731,6 +1789,7 @@ void
gst_pad_fixate_caps (GstPad * pad, GstCaps * caps)
{
GstPadFixateCapsFunction fixatefunc;
gint n;
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (caps != NULL);
@ -1739,6 +1798,13 @@ gst_pad_fixate_caps (GstPad * pad, GstCaps * caps)
if (fixatefunc) {
fixatefunc (pad, caps);
}
/* default fixation */
for (n = 0; n < gst_caps_get_size (caps); n++) {
GstStructure *s = gst_caps_get_structure (caps, n);
gst_structure_foreach (s, gst_pad_default_fixate, s);
}
}
/**