mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-30 05:31:15 +00:00
62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
|
#include <gst/gst.h>
|
||
|
|
|
||
|
|
int main(int argc,char *argv[])
|
||
|
|
{
|
||
|
|
xmlDocPtr doc;
|
||
|
|
xmlNodePtr parent;
|
||
|
|
GstElement *mpg123;
|
||
|
|
GstElement *mp3parse;
|
||
|
|
GstElement *queue;
|
||
|
|
GstPad *sinkpad;
|
||
|
|
GstPad *srcpad;
|
||
|
|
GstPad *qsinkpad;
|
||
|
|
|
||
|
|
doc = xmlNewDoc ("1.0");
|
||
|
|
doc->xmlRootNode = xmlNewDocNode (doc, NULL, "Capabilities", NULL);
|
||
|
|
|
||
|
|
gst_init (&argc, &argv);
|
||
|
|
|
||
|
|
mpg123 = gst_elementfactory_make ("mpg123", "mpg123");
|
||
|
|
g_assert (mpg123 != NULL);
|
||
|
|
|
||
|
|
sinkpad = gst_element_get_pad (mpg123, "sink");
|
||
|
|
g_assert (sinkpad != NULL);
|
||
|
|
|
||
|
|
queue = gst_elementfactory_make ("queue", "queue");
|
||
|
|
g_assert (queue != NULL);
|
||
|
|
|
||
|
|
srcpad = gst_element_get_pad (queue, "src");
|
||
|
|
g_assert (srcpad != NULL);
|
||
|
|
qsinkpad = gst_element_get_pad (queue, "sink");
|
||
|
|
g_assert (qsinkpad != NULL);
|
||
|
|
|
||
|
|
parent = xmlNewChild (doc->xmlRootNode, NULL, "mpg123 caps", NULL);
|
||
|
|
gst_caps_save_thyself (gst_pad_get_caps (sinkpad), parent);
|
||
|
|
|
||
|
|
parent = xmlNewChild (doc->xmlRootNode, NULL, "queue caps", NULL);
|
||
|
|
gst_caps_save_thyself (gst_pad_get_caps (srcpad), parent);
|
||
|
|
|
||
|
|
gst_pad_connect (srcpad, sinkpad);
|
||
|
|
|
||
|
|
parent = xmlNewChild (doc->xmlRootNode, NULL, "queue caps after connect src", NULL);
|
||
|
|
gst_caps_save_thyself (gst_pad_get_caps (srcpad), parent);
|
||
|
|
|
||
|
|
parent = xmlNewChild (doc->xmlRootNode, NULL, "queue caps after connect sink", NULL);
|
||
|
|
gst_caps_save_thyself (gst_pad_get_caps (qsinkpad), parent);
|
||
|
|
|
||
|
|
mp3parse = gst_elementfactory_make ("mp3parse", "mp3parse");
|
||
|
|
g_assert (mp3parse != NULL);
|
||
|
|
|
||
|
|
gst_pad_connect (gst_element_get_pad (mp3parse, "src"), qsinkpad);
|
||
|
|
|
||
|
|
parent = xmlNewChild (doc->xmlRootNode, NULL, "queue caps after connect sink", NULL);
|
||
|
|
gst_caps_save_thyself (gst_pad_get_caps (qsinkpad), parent);
|
||
|
|
|
||
|
|
parent = xmlNewChild (doc->xmlRootNode, NULL, "mpg123 caps after connect sink", NULL);
|
||
|
|
gst_caps_save_thyself (gst_pad_get_caps (sinkpad), parent);
|
||
|
|
|
||
|
|
xmlDocDump(stdout, doc);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|