From d92e18b722122d794a30e250cddf86cac814f748 Mon Sep 17 00:00:00 2001
From: Edward Hervey <bilboed@bilboed.com>
Date: Fri, 19 Dec 2014 11:35:24 +0100
Subject: [PATCH] gstinfo: Add new maximum level debugging

API: GST_LEVEL_MAX

By compiling gstreamer (or plugins) with GST_LEVEL_MAX defined, only
the debugging statements at or below that level will be compiled in.

This allows compiling in some debugging (like errors and warnings) which
helps in debugging, but without the full cpu/memory overhead of all debugging
enabled.
---
 gst/gstinfo.h | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/gst/gstinfo.h b/gst/gstinfo.h
index 5c802bd946..a162cef9e4 100644
--- a/gst/gstinfo.h
+++ b/gst/gstinfo.h
@@ -102,6 +102,22 @@ typedef enum {
 #define GST_LEVEL_DEFAULT GST_LEVEL_NONE
 #endif
 
+/**
+ * GST_LEVEL_MAX:
+ *
+ * Defines the maximum debugging level to be enabled at compilation time. By default
+ * it is set such that all debugging statements will be enabled.
+ *
+ * If you wish to compile GStreamer and plugins with only some debugging statements
+ * (Such as just warnings and errors), you can define it at compile time to the
+ * maximum debug level. Any debug statements above that level will be compiled out.
+ *
+ * Since: 1.6
+ * */
+#ifndef GST_LEVEL_MAX
+#define GST_LEVEL_MAX GST_LEVEL_COUNT
+#endif
+
 /* defines for format (colors etc)
  * don't change them around, it uses terminal layout
  * Terminal color strings:
@@ -520,7 +536,7 @@ GST_EXPORT GstDebugLevel            _gst_debug_min;
  */
 #ifdef G_HAVE_ISO_VARARGS
 #define GST_CAT_LEVEL_LOG(cat,level,object,...) G_STMT_START{		\
-  if (G_UNLIKELY (level <= _gst_debug_min)) {						\
+  if (G_UNLIKELY (level <= GST_LEVEL_MAX && level <= _gst_debug_min)) {						\
     gst_debug_log ((cat), (level), __FILE__, GST_FUNCTION, __LINE__,	\
         (GObject *) (object), __VA_ARGS__);				\
   }									\
@@ -528,7 +544,7 @@ GST_EXPORT GstDebugLevel            _gst_debug_min;
 #else /* G_HAVE_GNUC_VARARGS */
 #ifdef G_HAVE_GNUC_VARARGS
 #define GST_CAT_LEVEL_LOG(cat,level,object,args...) G_STMT_START{	\
-  if (G_UNLIKELY (level <= _gst_debug_min)) {						\
+  if (G_UNLIKELY (level <= GST_LEVEL_MAX && level <= _gst_debug_min)) {						\
     gst_debug_log ((cat), (level), __FILE__, GST_FUNCTION, __LINE__,	\
         (GObject *) (object), ##args );					\
   }									\
@@ -538,7 +554,7 @@ static inline void
 GST_CAT_LEVEL_LOG_valist (GstDebugCategory * cat,
     GstDebugLevel level, gpointer object, const char *format, va_list varargs)
 {
-  if (G_UNLIKELY (level <= _gst_debug_min)) {
+  if (G_UNLIKELY (level <= GST_LEVEL_MAX && level <= _gst_debug_min)) {
     gst_debug_log_valist (cat, level, "", "", 0, (GObject *) object, format,
         varargs);
   }
@@ -561,7 +577,8 @@ GST_CAT_LEVEL_LOG (GstDebugCategory * cat, GstDebugLevel level,
  * other macros and hence in a separate block right here. Docs chunks are
  * with the other doc chunks below though. */
 #define __GST_CAT_MEMDUMP_LOG(cat,object,msg,data,length) G_STMT_START{       \
-  if (G_UNLIKELY (GST_LEVEL_MEMDUMP <= _gst_debug_min)) {                    \
+    if (G_UNLIKELY (GST_LEVEL_MEMDUMP <= GST_LEVEL_MAX &&		      \
+		    GST_LEVEL_MEMDUMP <= _gst_debug_min)) {		      \
     _gst_debug_dump_mem ((cat), __FILE__, GST_FUNCTION, __LINE__,             \
         (GObject *) (object), (msg), (data), (length));                       \
   }                                                                           \