how do you enable output of GST_DEBUG_OBJECT ?

[Bob Barker]

We’re new to GStreamer and are writing our own elements.
After downloading all the GStreamer source code and searching it, we cannot
figure out how to turn on the debug output. For example, in this source
excerpt how to do you get line 1049 to output at runtime?
>From gstreamer-1.0.10/libs/gst/base/gstbasesink.c" line 1027 of 4902
 1026 gboolean
1027 gst_base_sink_query_latency (GstBaseSink * sink, gboolean * live,
1028 gboolean * upstream_live, GstClockTime * min_latency,
1029 GstClockTime * max_latency)
1030 {
1031 gboolean l, us_live, res, have_latency;
1032 GstClockTime min, max, render_delay;
1033 GstQuery *query;
1034 GstClockTime us_min, us_max;
1035
1036 /* we are live when we sync to the clock */
1037 GST_OBJECT_LOCK (sink);
1038 l = sink->sync;
1039 have_latency = sink->priv->have_latency;
1040 render_delay = sink->priv->render_delay;
1041 GST_OBJECT_UNLOCK (sink);
1042
1043 /* assume no latency */
1044 min = 0;
1045 max = -1;
1046 us_live = FALSE;
1047
1048 if (have_latency) {
1049 GST_DEBUG_OBJECT (sink, "we are ready for LATENCY query");
1050 /* we are ready for a latency query this is when we preroll or when we
are
1051 * not async. */

 We tried searching for main() to see if debug output is turned on at
runtime from command line arguments but there's 309 main() functions in the
total source base.
 TIA
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/gstreamer-devel/attachments/20131016/0fb77581/attachment-0001.html>