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Better capsnego

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Original commit message from CVS:
Better capsnego
This commit is contained in:
Wim Taymans 2003-03-02 14:00:11 +00:00
parent efaef0379d
commit a82c7a7572
2 changed files with 84 additions and 2 deletions
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43
gst/elements/gsttee.c
View file

@ -142,13 +142,52 @@ gst_tee_sinklink (GstPad *pad, GstCaps *caps)
if (GST_PAD_DIRECTION (outpad) != GST_PAD_SRC || !GST_PAD_IS_USABLE (outpad))
continue;
if ((set_retval = gst_pad_try_set_caps (outpad, caps)) <= 0) {
if ((set_retval = gst_pad_proxy_link (outpad, caps)) <= 0) {
return set_retval;
}
}
return GST_PAD_LINK_OK;
}
static GstPadLinkReturn
gst_tee_srclink (GstPad *pad, GstCaps *caps)
{
GstTee *tee;
tee = GST_TEE (gst_pad_get_parent (pad));
return gst_pad_proxy_link (tee->sinkpad, caps);
}
static GstCaps*
gst_tee_sinkgetcaps (GstPad *pad, GstCaps *filter)
{
GstCaps *caps = NULL;
GstTee *tee;
const GList *pads;
tee = GST_TEE (gst_pad_get_parent (pad));
pads = gst_element_get_pad_list (GST_ELEMENT (tee));
while (pads) {
GstPad *srcpad = GST_PAD_CAST (pads->data);
GstCaps *peercaps;
pads = g_list_next (pads);
if (!GST_PAD_IS_SRC (srcpad))
continue;
peercaps = gst_pad_get_caps (srcpad);
caps = gst_caps_intersect (caps, peercaps);
gst_caps_unref (caps);
gst_caps_unref (peercaps);
}
return caps;
}
static void
gst_tee_init (GstTee *tee)
{
@ -156,6 +195,7 @@ gst_tee_init (GstTee *tee)
gst_element_add_pad (GST_ELEMENT (tee), tee->sinkpad);
gst_pad_set_chain_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_chain));
gst_pad_set_link_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_sinklink));
gst_pad_set_getcaps_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_sinkgetcaps));
tee->silent = FALSE;
tee->last_message = NULL;
@ -213,6 +253,7 @@ gst_tee_request_new_pad (GstElement *element, GstPadTemplate *templ, const gchar
srcpad = gst_pad_new_from_template (templ, name);
g_free (name);
gst_pad_set_link_function (srcpad, GST_DEBUG_FUNCPTR (gst_tee_srclink));
gst_element_add_pad (GST_ELEMENT (tee), srcpad);
GST_PAD_ELEMENT_PRIVATE (srcpad) = NULL;

43
plugins/elements/gsttee.c
View file

@ -142,13 +142,52 @@ gst_tee_sinklink (GstPad *pad, GstCaps *caps)
if (GST_PAD_DIRECTION (outpad) != GST_PAD_SRC || !GST_PAD_IS_USABLE (outpad))
continue;
if ((set_retval = gst_pad_try_set_caps (outpad, caps)) <= 0) {
if ((set_retval = gst_pad_proxy_link (outpad, caps)) <= 0) {
return set_retval;
}
}
return GST_PAD_LINK_OK;
}
static GstPadLinkReturn
gst_tee_srclink (GstPad *pad, GstCaps *caps)
{
GstTee *tee;
tee = GST_TEE (gst_pad_get_parent (pad));
return gst_pad_proxy_link (tee->sinkpad, caps);
}
static GstCaps*
gst_tee_sinkgetcaps (GstPad *pad, GstCaps *filter)
{
GstCaps *caps = NULL;
GstTee *tee;
const GList *pads;
tee = GST_TEE (gst_pad_get_parent (pad));
pads = gst_element_get_pad_list (GST_ELEMENT (tee));
while (pads) {
GstPad *srcpad = GST_PAD_CAST (pads->data);
GstCaps *peercaps;
pads = g_list_next (pads);
if (!GST_PAD_IS_SRC (srcpad))
continue;
peercaps = gst_pad_get_caps (srcpad);
caps = gst_caps_intersect (caps, peercaps);
gst_caps_unref (caps);
gst_caps_unref (peercaps);
}
return caps;
}
static void
gst_tee_init (GstTee *tee)
{
@ -156,6 +195,7 @@ gst_tee_init (GstTee *tee)
gst_element_add_pad (GST_ELEMENT (tee), tee->sinkpad);
gst_pad_set_chain_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_chain));
gst_pad_set_link_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_sinklink));
gst_pad_set_getcaps_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_sinkgetcaps));
tee->silent = FALSE;
tee->last_message = NULL;
@ -213,6 +253,7 @@ gst_tee_request_new_pad (GstElement *element, GstPadTemplate *templ, const gchar
srcpad = gst_pad_new_from_template (templ, name);
g_free (name);
gst_pad_set_link_function (srcpad, GST_DEBUG_FUNCPTR (gst_tee_srclink));
gst_element_add_pad (GST_ELEMENT (tee), srcpad);
GST_PAD_ELEMENT_PRIVATE (srcpad) = NULL;