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