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gst/autoplug/: Fix autoplugging in spider element, so it works with new caps.

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Original commit message from CVS:
2003-12-22  Benjamin Otte  <in7y118@public.uni-hamburg.de>

* gst/autoplug/gstsearchfuncs.c: (gst_autoplug_caps_intersect):
* gst/autoplug/gstspideridentity.c: (gst_spider_identity_link),
(gst_spider_identity_getcaps), (gst_spider_identity_change_state),
(gst_spider_identity_sink_loop_type_finding):
* gst/autoplug/gstspideridentity.h:
Fix autoplugging in spider element, so it works with new caps.
This was mainly caused by identifying empty caps incorrectly.
This commit is contained in:
Benjamin Otte 2003-12-22 18:06:22 +00:00
parent 50b7bcab86
commit d136495dd9
4 changed files with 53 additions and 25 deletions
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10
ChangeLog
View file

@ -1,3 +1,13 @@
2003-12-22 Benjamin Otte <in7y118@public.uni-hamburg.de>
* gst/autoplug/gstsearchfuncs.c: (gst_autoplug_caps_intersect):
* gst/autoplug/gstspideridentity.c: (gst_spider_identity_link),
(gst_spider_identity_getcaps), (gst_spider_identity_change_state),
(gst_spider_identity_sink_loop_type_finding):
* gst/autoplug/gstspideridentity.h:
Fix autoplugging in spider element, so it works with new caps.
This was mainly caused by identifying empty caps incorrectly.
2003-12-22 David Schleef <ds@schleef.org>
* gststructure.c, gstvalue.c, gstvalue.h: Add

12
gst/autoplug/gstsearchfuncs.c
View file

@ -28,10 +28,8 @@
#include "gstsearchfuncs.h"
/* FIXME: "evil hack" alarm, we need a better way to get a category in here */
#ifndef GST_DISABLE_GST_DEBUG
extern GstDebugCategory *GST_CAT_AUTOPLUG_ATTEMPT;
GST_DEBUG_CATEGORY_EXTERN (GST_CAT_AUTOPLUG_ATTEMPT);
#define GST_CAT_DEFAULT GST_CAT_AUTOPLUG_ATTEMPT
#endif
/* function that really misses in GLib
* though the GLib version should take a function as argument...
@ -62,16 +60,14 @@ gst_autoplug_caps_intersect (const GstCaps *src, const GstCaps *sink)
{
GstCaps *caps;
/* if there are no caps, we can link */
if ((src == NULL) && (sink == NULL))
return TRUE;
/* get an intersection */
caps = gst_caps_intersect (src, sink);
/* if the caps can't link, there is no intersection */
if (caps == NULL)
if (gst_caps_is_empty (caps)) {
gst_caps_free (caps);
return FALSE;
}
/* hurrah, we can link, now remove the intersection */
gst_caps_free (caps);

55
gst/autoplug/gstspideridentity.c
View file

@ -232,30 +232,40 @@ gst_spider_identity_link (GstPad *pad, const GstCaps *caps)
else
otherpad = spider_identity->src;
if (otherpad != NULL)
return gst_pad_proxy_link (otherpad, caps);
return GST_PAD_LINK_OK;
g_return_val_if_fail (otherpad != NULL, GST_PAD_LINK_REFUSED);
if (GST_PAD_PEER (otherpad) == NULL)
return GST_PAD_LINK_DELAYED;
return gst_pad_try_set_caps (otherpad, gst_caps_copy (caps));
}
static GstCaps*
gst_spider_identity_getcaps (GstPad *pad)
{
GstSpiderIdentity *spider_identity = GST_SPIDER_IDENTITY (gst_pad_get_parent (pad));
GstSpiderIdentity *ident = GST_SPIDER_IDENTITY (gst_pad_get_parent (pad));
GstPad *otherpad;
GstPad *peer;
if (pad == spider_identity->src)
otherpad = spider_identity->sink;
if (pad == ident->src)
otherpad = ident->sink;
else
otherpad = spider_identity->src;
otherpad = ident->src;
if (otherpad != NULL) {
peer = GST_PAD_PEER (otherpad);
GstPad *peer = GST_PAD_PEER (otherpad);
if (peer)
return gst_pad_get_caps (peer);
if (peer) {
GstCaps *ret = gst_pad_get_caps (peer);
if (ident->caps) {
GstCaps *ret2 = gst_caps_intersect (ident->caps, ret);
gst_caps_free (ret);
ret = ret2;
}
return ret;
}
}
if (ident->caps)
return gst_caps_copy (ident->caps);
return gst_caps_new_any ();
}
@ -318,6 +328,9 @@ gst_spider_identity_change_state (GstElement *element)
g_return_val_if_fail (GST_IS_SPIDER_IDENTITY (ident), GST_STATE_FAILURE);
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_PAUSED_TO_READY:
gst_caps_replace (&ident->caps, NULL);
break;
case GST_STATE_PAUSED_TO_PLAYING:
/* autoplugger check */
spider = GST_SPIDER (GST_ELEMENT_PARENT (ident));
@ -327,13 +340,16 @@ gst_spider_identity_change_state (GstElement *element)
/* start typefinding or plugging */
if ((GST_RPAD_PEER (ident->sink) != NULL) && (GST_RPAD_PEER (ident->src) == NULL))
{
if (gst_pad_get_caps ((GstPad *) GST_PAD_PEER (ident->sink)) == NULL)
GstCaps *caps = gst_pad_get_caps ((GstPad *) GST_PAD_PEER (ident->sink));
if (gst_caps_is_any (caps) || gst_caps_is_empty (caps))
{
gst_spider_identity_start_type_finding (ident);
gst_caps_free (caps);
break;
} else {
gst_spider_identity_plug (ident);
}
gst_caps_free (caps);
}
/* autoplug on src */
if ((GST_RPAD_PEER (ident->src) != NULL) && (GST_RPAD_PEER (ident->sink) == NULL))
@ -461,8 +477,11 @@ gst_spider_identity_sink_loop_type_finding (GstSpiderIdentity *ident)
find.buffer = GST_BUFFER (data);
/* maybe there are already valid caps now? */
find.caps = gst_pad_get_caps (ident->sink);
if (find.caps != NULL) {
if (! gst_caps_is_empty (find.caps) && !gst_caps_is_any (find.caps)) {
goto plug;
} else {
gst_caps_free (find.caps);
find.caps = NULL;
}
/* now do the actual typefinding with the supplied buffer */
@ -499,9 +518,13 @@ end:
plug:
GST_INFO ("typefind function found caps");
ident->caps = find.caps;
g_assert (gst_pad_try_set_caps (ident->src, find.caps) > 0);
gst_caps_debug (find.caps, "spider starting caps");
gst_caps_free (find.caps);
{
gchar *str = gst_caps_to_string (find.caps);
GST_LOG_OBJECT (ident, "spider starting caps: %s", str);
g_free (str);
}
if (type_list)
g_list_free (type_list);

1
gst/autoplug/gstspideridentity.h
View file

@ -54,7 +54,6 @@ struct _GstSpiderIdentity {
/* Caps from typefinding */
GstCaps *caps;
};
struct _GstSpiderIdentityClass {