1 // Copyright 2019 The libgav1 Authors
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include "src/utils/logging.h"
16
17 #include <cstdarg>
18 #include <cstdio>
19 #include <ios>
20 #include <sstream>
21 #include <thread> // NOLINT (unapproved c++11 header)
22
23 #if !defined(LIBGAV1_LOG_LEVEL)
24 #define LIBGAV1_LOG_LEVEL (1 << 30)
25 #endif
26
27 namespace libgav1 {
28 namespace internal {
29 #if LIBGAV1_ENABLE_LOGGING
30 namespace {
31
LogSeverityName(LogSeverity severity)32 const char* LogSeverityName(LogSeverity severity) {
33 switch (severity) {
34 case LogSeverity::kInfo:
35 return "INFO";
36 case LogSeverity::kError:
37 return "ERROR";
38 case LogSeverity::kWarning:
39 return "WARNING";
40 }
41 return "UNKNOWN";
42 }
43
44 } // namespace
45
Log(LogSeverity severity,const char * file,int line,const char * format,...)46 void Log(LogSeverity severity, const char* file, int line, const char* format,
47 ...) {
48 if (LIBGAV1_LOG_LEVEL < static_cast<int>(severity)) return;
49 std::ostringstream ss;
50 ss << std::hex << std::this_thread::get_id();
51 fprintf(stderr, "%s %s %s:%d] ", LogSeverityName(severity), ss.str().c_str(),
52 file, line);
53
54 va_list ap;
55 va_start(ap, format);
56 vfprintf(stderr, format, ap);
57 va_end(ap);
58 fprintf(stderr, "\n");
59 }
60 #else // !LIBGAV1_ENABLE_LOGGING
61 void Log(LogSeverity /*severity*/, const char* /*file*/, int /*line*/,
62 const char* /*format*/, ...) {}
63 #endif // LIBGAV1_ENABLE_LOGGING
64
65 } // namespace internal
66 } // namespace libgav1
67