how do you enable output of GST_DEBUG_OBJECT ?

[Chuck Crisler]

Google 'gstreamer debugging'. You ought to get a lot of hits. Here is some
information.

http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/section-checklist-debug.html
http://gstreamer.freedesktop.org/data/doc/gstreamer/head/pwg/html/section-checklist-debug.html
http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstInfo.html

On Linux use 'export GST_DEBUG=<some element name>:<1-6?>,<some other
element>:<1-6>'

When you have a problem and don't know where it might be, start with
GST_DEBUG=*:3 which allows info level debugging from everything. Then you
can refine your logging as you get ideas about where the problem lies.


On Wed, Oct 16, 2013 at 2:40 PM, Bob Barker <bobbarker278 at gmail.com> wrote:

> 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
>
>
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>
>
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