always use system log and context. allow hijack the human print macro.

@@ -48,12 +48,9 @@ using namespace std;
 #include <srs_kernel_file.hpp>
 #include <srs_lib_bandwidth.hpp>
 
-// if want to use your log, define the folowing macro.
-#ifndef SRS_HIJACK_LOG
-    // kernel module.
-    ISrsLog* _srs_log = new ISrsLog();
-    ISrsThreadContext* _srs_context = new ISrsThreadContext();
-#endif
+// kernel module.
+ISrsLog* _srs_log = new ISrsLog();
+ISrsThreadContext* _srs_context = new ISrsThreadContext();
 
 /**
 * export runtime context.

@@ -926,9 +926,13 @@ extern int srs_human_print_rtmp_packet(char type, u_int32_t timestamp, char* dat
 
 // log to console, for use srs-librtmp application.
 extern const char* srs_human_format_time();
-#define srs_human_trace(msg, ...) printf("[%s] ", srs_human_format_time());printf(msg, ##__VA_ARGS__);printf("\n")
-#define srs_human_verbose(msg, ...) printf("[%s] ", srs_human_format_time());printf(msg, ##__VA_ARGS__);printf("\n")
-#define srs_human_raw(msg, ...) printf(msg, ##__VA_ARGS__)
+
+// when hijack the log, user will defines this macros.
+#ifndef SRS_HIJACK_LOG
+    #define srs_human_trace(msg, ...) printf("[%s] ", srs_human_format_time());printf(msg, ##__VA_ARGS__);printf("\n")
+    #define srs_human_verbose(msg, ...) printf("[%s] ", srs_human_format_time());printf(msg, ##__VA_ARGS__);printf("\n")
+    #define srs_human_raw(msg, ...) printf(msg, ##__VA_ARGS__)
+#endif
 
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