gstreamer/docs/random/ensonic/logging.txt

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$Id$
rethink log format. current format:
* is not easy to parse/process by commandline tools
* cannnot be easily diffed (timestamps, pid)
gst_debug_log_default() is default gst-log handler.
try new via:
gst_debug_remove_log_function(gst_debug_log_default)
gst_debug_add_log_function(func,data)
== reorder fields ==
format of default handler is:
DEBUG (0x8134bc0 - 0:00:00.848191000) GST_QOS( 3340) gstbasesink.c(1431):gst_base_sink_do_render_stats:<xvimagesink0> avg_render: 0:00:00.009044000
log_level_name --^^^^^ | | | | | | | | | | | | |
thread-id --------------^^^^^^^^^ | | | | | | | | | | |
timestamp --------------------------^^^^^^^^^^^^^^^^^ | | | | | | | | |
log_category -------------------------------------------------------^^^^^^^ | | | | | | |
process-id -----------------------------------------------------------------^^^^^ | | | | |
file:line -------------------------------------------------------------------------^^^^^^^^^^^^^^^^^^^ | | |
function ----------------------------------------------------------------------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
message -----------------------------------------------------------------------------------------------------------------------------^^^^^^^^^^^^^^^
new proposed format:
0:00:00.848191000 3340 0x8134bc0 DEBUG GST_QOS gstbasesink.c:1431:gst_base_sink_do_render_stats:<xvimagesink0> avg_render: 0:00:00.009044000
timestamp -------^^^^^^^^^^^^^^^^^ | | | | | | | | | | | | |
process-id ------------------------^^^^^ | | | | | | | | | | |
thread-id -------------------------------^^^^^^^^^ | | | | | | | | |
log_level_name ------------------------------------^^^^^ | | | | | | |
log_category ----------------------------------------------------------^^^^^^^ | | | | |
file:line ---------------------------------------------------------------------^^^^^^^^^^^^^^^^^^ | | |
function -----------------------------------------------------------------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
message ------------------------------------------------------------------------------------------------------------------------^^^^^^^^^^^^^^^
something like:
cut -c35- | sed -e "s/0x[0-9a-f]\{7,8\}//g"
should make logs easily 'diffable'.
== color code level ==
I suggedt to color-code loglevels if COLOR is allowed:
ERROR : red
WARNING : yellow
INFO : green
DEBUG : turkis
LOG : gray
NONE : gray
== log sources ==
What about differentating between log sources:
core
elements
application