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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef MEDIA_BASE_MEDIA_LOG_H_ | 5 #ifndef MEDIA_BASE_MEDIA_LOG_H_ |
6 #define MEDIA_BASE_MEDIA_LOG_H_ | 6 #define MEDIA_BASE_MEDIA_LOG_H_ |
7 | 7 |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 #include <stdint.h> | 9 #include <stdint.h> |
10 | 10 |
11 #include <memory> | 11 #include <memory> |
12 #include <sstream> | 12 #include <sstream> |
13 #include <string> | 13 #include <string> |
14 | 14 |
15 #include "base/containers/flat_set.h" | 15 #include "base/containers/flat_set.h" |
16 #include "base/logging.h" | 16 #include "base/logging.h" |
17 #include "base/macros.h" | 17 #include "base/macros.h" |
18 #include "base/memory/ref_counted.h" | |
19 #include "media/base/buffering_state.h" | 18 #include "media/base/buffering_state.h" |
20 #include "media/base/media_export.h" | 19 #include "media/base/media_export.h" |
21 #include "media/base/media_log_event.h" | 20 #include "media/base/media_log_event.h" |
22 #include "media/base/pipeline_impl.h" | 21 #include "media/base/pipeline_impl.h" |
23 #include "media/base/pipeline_status.h" | 22 #include "media/base/pipeline_status.h" |
24 #include "url/gurl.h" | 23 #include "url/gurl.h" |
25 | 24 |
26 namespace media { | 25 namespace media { |
27 | 26 |
28 class MEDIA_EXPORT MediaLog : public base::RefCountedThreadSafe<MediaLog> { | 27 class MEDIA_EXPORT MediaLog { |
29 public: | 28 public: |
30 enum MediaLogLevel { | 29 enum MediaLogLevel { |
31 MEDIALOG_ERROR, | 30 MEDIALOG_ERROR, |
32 MEDIALOG_INFO, | 31 MEDIALOG_INFO, |
33 MEDIALOG_DEBUG, | 32 MEDIALOG_DEBUG, |
34 }; | 33 }; |
35 | 34 |
36 // Convert various enums to strings. | 35 // Convert various enums to strings. |
37 static std::string MediaLogLevelToString(MediaLogLevel level); | 36 static std::string MediaLogLevelToString(MediaLogLevel level); |
38 static MediaLogEvent::Type MediaLogLevelToEventType(MediaLogLevel level); | 37 static MediaLogEvent::Type MediaLogLevelToEventType(MediaLogLevel level); |
39 static std::string EventTypeToString(MediaLogEvent::Type type); | 38 static std::string EventTypeToString(MediaLogEvent::Type type); |
40 static std::string PipelineStatusToString(PipelineStatus status); | 39 static std::string PipelineStatusToString(PipelineStatus status); |
41 static std::string BufferingStateToString(BufferingState state); | 40 static std::string BufferingStateToString(BufferingState state); |
42 | 41 |
43 static std::string MediaEventToLogString(const MediaLogEvent& event); | 42 static std::string MediaEventToLogString(const MediaLogEvent& event); |
44 | 43 |
45 MediaLog(); | 44 MediaLog(); |
| 45 virtual ~MediaLog(); |
46 | 46 |
47 // Add an event to this log. Overriden by inheritors to actually do something | 47 // Add an event to this log. Overriden by inheritors to actually do something |
48 // with it. | 48 // with it. |
49 virtual void AddEvent(std::unique_ptr<MediaLogEvent> event); | 49 virtual void AddEvent(std::unique_ptr<MediaLogEvent> event); |
50 | 50 |
51 // Retrieve an error message, if any. | 51 // Retrieve an error message, if any. |
52 virtual std::string GetLastErrorMessage(); | 52 virtual std::string GetLastErrorMessage(); |
53 | 53 |
54 // Records the domain and registry of the current frame security origin to a | 54 // Records the domain and registry of the current frame security origin to a |
55 // Rappor privacy-preserving metric. See: | 55 // Rappor privacy-preserving metric. See: |
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116 static const char kWatchTimeAudioVideoBackgroundAc[]; | 116 static const char kWatchTimeAudioVideoBackgroundAc[]; |
117 static const char kWatchTimeAudioVideoBackgroundEmbeddedExperience[]; | 117 static const char kWatchTimeAudioVideoBackgroundEmbeddedExperience[]; |
118 | 118 |
119 // Markers which signify the watch time should be finalized immediately. | 119 // Markers which signify the watch time should be finalized immediately. |
120 static const char kWatchTimeFinalize[]; | 120 static const char kWatchTimeFinalize[]; |
121 static const char kWatchTimeFinalizePower[]; | 121 static const char kWatchTimeFinalizePower[]; |
122 | 122 |
123 static base::flat_set<base::StringPiece> GetWatchTimeKeys(); | 123 static base::flat_set<base::StringPiece> GetWatchTimeKeys(); |
124 static base::flat_set<base::StringPiece> GetWatchTimePowerKeys(); | 124 static base::flat_set<base::StringPiece> GetWatchTimePowerKeys(); |
125 | 125 |
126 protected: | |
127 friend class base::RefCountedThreadSafe<MediaLog>; | |
128 virtual ~MediaLog(); | |
129 | |
130 private: | 126 private: |
131 // A unique (to this process) id for this MediaLog. | 127 // A unique (to this process) id for this MediaLog. |
132 int32_t id_; | 128 int32_t id_; |
133 | 129 |
134 DISALLOW_COPY_AND_ASSIGN(MediaLog); | 130 DISALLOW_COPY_AND_ASSIGN(MediaLog); |
135 }; | 131 }; |
136 | 132 |
137 // Helper class to make it easier to use MediaLog like DVLOG(). | 133 // Helper class to make it easier to use MediaLog like DVLOG(). |
138 class MEDIA_EXPORT LogHelper { | 134 class MEDIA_EXPORT LogHelper { |
139 public: | 135 public: |
140 LogHelper(MediaLog::MediaLogLevel level, | 136 LogHelper(MediaLog::MediaLogLevel level, MediaLog* media_log); |
141 const scoped_refptr<MediaLog>& media_log); | |
142 ~LogHelper(); | 137 ~LogHelper(); |
143 | 138 |
144 std::ostream& stream() { return stream_; } | 139 std::ostream& stream() { return stream_; } |
145 | 140 |
146 private: | 141 private: |
147 MediaLog::MediaLogLevel level_; | 142 const MediaLog::MediaLogLevel level_; |
148 const scoped_refptr<MediaLog> media_log_; | 143 MediaLog* const media_log_; |
149 std::stringstream stream_; | 144 std::stringstream stream_; |
150 }; | 145 }; |
151 | 146 |
152 // Provides a stringstream to collect a log entry to pass to the provided | 147 // Provides a stringstream to collect a log entry to pass to the provided |
153 // MediaLog at the requested level. | 148 // MediaLog at the requested level. |
154 #define MEDIA_LOG(level, media_log) \ | 149 #define MEDIA_LOG(level, media_log) \ |
155 LogHelper((MediaLog::MEDIALOG_##level), (media_log)).stream() | 150 LogHelper((MediaLog::MEDIALOG_##level), (media_log)).stream() |
156 | 151 |
157 // Logs only while |count| < |max|, increments |count| for each log, and warns | 152 // Logs only while |count| < |max|, increments |count| for each log, and warns |
158 // in the log if |count| has just reached |max|. | 153 // in the log if |count| has just reached |max|. |
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170 #define LIMITED_MEDIA_LOG(level, media_log, count, max) \ | 165 #define LIMITED_MEDIA_LOG(level, media_log, count, max) \ |
171 LAZY_STREAM(MEDIA_LOG(level, media_log), \ | 166 LAZY_STREAM(MEDIA_LOG(level, media_log), \ |
172 (count) < (max) && ((count)++ || true)) \ | 167 (count) < (max) && ((count)++ || true)) \ |
173 << (((count) == (max)) ? "(Log limit reached. Further similar entries " \ | 168 << (((count) == (max)) ? "(Log limit reached. Further similar entries " \ |
174 "may be suppressed): " \ | 169 "may be suppressed): " \ |
175 : "") | 170 : "") |
176 | 171 |
177 } // namespace media | 172 } // namespace media |
178 | 173 |
179 #endif // MEDIA_BASE_MEDIA_LOG_H_ | 174 #endif // MEDIA_BASE_MEDIA_LOG_H_ |
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