mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-12-18 22:36:33 +00:00
Code Issues 1 Projects Releases Wiki Activity

ffmpegcolorspace: Update for negotiation related API changes

Browse source
This commit is contained in:
Sebastian Dröge 2011-05-16 11:26:17 +02:00
parent 709b831a72
commit a78bf729a9
1 changed files with 5 additions and 48 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

53
gst/ffmpegcolorspace/gstffmpegcolorspace.c
View file

@ -124,40 +124,16 @@ gst_ffmpegcsp_caps_remove_format_info (GstCaps * caps)
return caps;
}
static gboolean
gst_ffmpegcsp_structure_is_alpha (GstStructure * s)
{
GQuark name;
name = gst_structure_get_name_id (s);
if (name == _QRAWRGB) {
return gst_structure_id_has_field (s, _QALPHAMASK);
} else if (name == _QRAWYUV) {
guint32 fourcc;
if (!gst_structure_get_fourcc (s, "format", &fourcc))
return FALSE;
return (fourcc == GST_MAKE_FOURCC ('A', 'Y', 'U', 'V'));
}
return FALSE;
}
/* The caps can be transformed into any other caps with format info removed.
* However, we should prefer passthrough, so if passthrough is possible,
* put it first in the list. */
static GstCaps *
gst_ffmpegcsp_transform_caps (GstBaseTransform * btrans,
GstPadDirection direction, GstCaps * caps)
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *template;
GstCaps *tmp, *tmp2;
GstCaps *result;
GstStructure *s;
GstCaps *alpha, *non_alpha;
template = gst_static_pad_template_get_caps (&gst_ffmpegcsp_src_template);
result = gst_caps_copy (caps);
@ -168,31 +144,12 @@ gst_ffmpegcsp_transform_caps (GstBaseTransform * btrans,
gst_caps_unref (tmp);
tmp = tmp2;
/* Now move alpha formats to the beginning if caps is an alpha format
* or at the end if caps is no alpha format */
alpha = gst_caps_new_empty ();
non_alpha = gst_caps_new_empty ();
while ((s = gst_caps_steal_structure (tmp, 0))) {
if (gst_ffmpegcsp_structure_is_alpha (s))
gst_caps_append_structure (alpha, s);
else
gst_caps_append_structure (non_alpha, s);
if (filter) {
tmp2 = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (tmp);
tmp = tmp2;
}
s = gst_caps_get_structure (caps, 0);
gst_caps_unref (tmp);
if (gst_ffmpegcsp_structure_is_alpha (s)) {
gst_caps_append (alpha, non_alpha);
tmp = alpha;
} else {
gst_caps_append (non_alpha, alpha);
tmp = non_alpha;
}
gst_caps_append (result, tmp);
GST_DEBUG_OBJECT (btrans, "transformed %" GST_PTR_FORMAT " into %"
GST_PTR_FORMAT, caps, result);