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Fix negotiation

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Original commit message from CVS:
Fix negotiation
This commit is contained in:
David Schleef 2004-01-08 21:53:32 +00:00
parent 3cf8cd02b1
commit 8c1615554b
2 changed files with 54 additions and 1 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2004-01-08 David Schleef <ds@schleef.org>
* gst/videodrop/gstvideodrop.c: (gst_videodrop_getcaps),
(gst_videodrop_link), (gst_videodrop_init): Fix negotiation.
2004-01-08 Julien MOUTTE,,, <julien@moutte.net>
* sys/ximage/ximagesink.c: (gst_ximagesink_handle_xevents): A

50
gst/videodrop/gstvideodrop.c
View file

@ -146,21 +146,67 @@ gst_videodrop_class_init (GstVideodropClass *klass)
name), \
min, max)
static GstCaps *
gst_videodrop_getcaps (GstPad *pad)
{
GstVideodrop *videodrop;
GstPad *otherpad;
GstCaps *caps;
int i;
GstStructure *structure;
videodrop = GST_VIDEODROP (gst_pad_get_parent (pad));
otherpad = (pad == videodrop->srcpad) ? videodrop->sinkpad :
videodrop->srcpad;
caps = gst_pad_get_allowed_caps (otherpad);
for (i=0;i<gst_caps_get_size(caps);i++) {
structure = gst_caps_get_structure (caps, i);
gst_structure_set (structure,
"framerate", GST_TYPE_DOUBLE_RANGE, 0.0, G_MAXDOUBLE, NULL);
}
return caps;
}
static GstPadLinkReturn
gst_videodrop_link (GstPad *pad, const GstCaps *caps)
{
GstVideodrop *videodrop;
GstStructure *structure;
GstPadLinkReturn link_ret;
gboolean ret;
double fps;
double otherfps;
GstPad *otherpad;
GstCaps *othercaps;
videodrop = GST_VIDEODROP (gst_pad_get_parent (pad));
otherpad = (pad == videodrop->srcpad) ? videodrop->sinkpad :
videodrop->srcpad;
structure = gst_caps_get_structure (caps, 0);
ret = gst_structure_get_double (structure, "framerate", &fps);
if (!ret) return GST_PAD_LINK_REFUSED;
if (gst_pad_is_negotiated (otherpad)) {
othercaps = gst_caps_copy (caps);
if (pad == videodrop->srcpad) {
otherfps = videodrop->from_fps;
} else {
otherfps = videodrop->to_fps;
}
gst_caps_set_simple (othercaps,
"framerate", G_TYPE_DOUBLE, otherfps, NULL);
link_ret = gst_pad_try_set_caps (otherpad, othercaps);
if (GST_PAD_LINK_FAILED (link_ret)) {
return link_ret;
}
}
if (pad == videodrop->srcpad) {
videodrop->to_fps = fps;
} else {
@ -178,11 +224,13 @@ gst_videodrop_init (GstVideodrop *videodrop)
gst_static_pad_template_get (&gst_videodrop_sink_template), "sink");
gst_element_add_pad (GST_ELEMENT (videodrop), videodrop->sinkpad);
gst_pad_set_chain_function (videodrop->sinkpad, gst_videodrop_chain);
gst_pad_set_getcaps_function (videodrop->sinkpad, gst_videodrop_getcaps);
gst_pad_set_link_function (videodrop->sinkpad, gst_videodrop_link);
videodrop->srcpad = gst_pad_new_from_template (
gst_static_pad_template_get (&gst_videodrop_src_template), "src");
gst_element_add_pad (GST_ELEMENT(videodrop), videodrop->srcpad);
gst_pad_set_getcaps_function (videodrop->srcpad, gst_videodrop_getcaps);
gst_pad_set_link_function (videodrop->srcpad, gst_videodrop_link);
videodrop->inited = FALSE;