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docs: manual: improve advanced metadata example a bit

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Accept both filename and a URI as argument, and print
the error from the error message if there's an error.

https://bugzilla.gnome.org/show_bug.cgi?id=756630
This commit is contained in:
Tim-Philipp Müller 2015-10-16 11:54:18 +01:00
parent cecd8bdfdc
commit 0a5fbd4d3b
1 changed files with 19 additions and 6 deletions
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25
docs/manual/advanced-metadata.xml
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@ -107,16 +107,23 @@ main (int argc, char ** argv)
{
GstElement *pipe, *dec, *sink;
GstMessage *msg;
gchar *uri;
gst_init (&argc, &argv);
if (argc < 2 || !gst_uri_is_valid (argv[1]))
g_error ("Usage: %s file:///path/to/file", argv[0]);
if (argc < 2)
g_error ("Usage: %s FILE or URI", argv[0]);
if (gst_uri_is_valid (argv[1])) {
uri = g_strdup (argv[1]);
} else {
uri = gst_filename_to_uri (argv[1], NULL);
}
pipe = gst_pipeline_new ("pipeline");
dec = gst_element_factory_make ("uridecodebin", NULL);
g_object_set (dec, "uri", argv[1], NULL);
g_object_set (dec, "uri", uri, NULL);
gst_bin_add (GST_BIN (pipe), dec);
sink = gst_element_factory_make ("fakesink", NULL);
@ -144,14 +151,20 @@ main (int argc, char ** argv)
gst_tag_list_unref (tags);
gst_message_unref (msg);
};
}
if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ERROR)
g_error ("Got error");
if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ERROR) {
GError *err = NULL;
gst_message_parse_error (msg, &err, NULL);
g_printerr ("Got error: %s\n", err->message);
g_error_free (err);
}
gst_message_unref (msg);
gst_element_set_state (pipe, GST_STATE_NULL);
gst_object_unref (pipe);
g_free (uri);
return 0;
}
</programlisting>