printf_extension_log_func   52 tests/check/gst/gstinfo.c   gst_debug_add_log_function (printf_extension_log_func, NULL);
printf_extension_log_func  109 tests/check/gst/gstinfo.c   gst_debug_remove_log_function (printf_extension_log_func);
printf_extension_log_func  120 tests/check/gst/gstinfo.c   gst_debug_add_log_function (printf_extension_log_func, NULL);
printf_extension_log_func  178 tests/check/gst/gstinfo.c   gst_debug_remove_log_function (printf_extension_log_func);