| OLD | NEW |
|---|
| (Empty) |
| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "media/base/key_systems_support_uma.h" | |
| 6 | |
| 7 #include "base/metrics/histogram.h" | |
| 8 #include "media/base/key_systems.h" | |
| 9 | |
| 10 namespace media { | |
| 11 | |
| 12 namespace { | |
| 13 | |
| 14 const char kKeySystemSupportUMAPrefix[] = "Media.EME.KeySystemSupport."; | |
| 15 | |
| 16 // These values are reported to UMA. Do not change the existing values! | |
| 17 enum KeySystemSupportStatus { | |
| 18 KEY_SYSTEM_QUERIED = 0, | |
| 19 KEY_SYSTEM_SUPPORTED = 1, | |
| 20 KEY_SYSTEM_WITH_TYPE_QUERIED = 2, | |
| 21 KEY_SYSTEM_WITH_TYPE_SUPPORTED = 3, | |
| 22 KEY_SYSTEM_SUPPORT_STATUS_COUNT | |
| 23 }; | |
| 24 | |
| 25 // Reports an event only once. | |
| 26 class OneTimeReporter { | |
| 27 public: | |
| 28 OneTimeReporter(const std::string& key_system, KeySystemSupportStatus status); | |
| 29 ~OneTimeReporter(); | |
| 30 | |
| 31 void Report(); | |
| 32 | |
| 33 private: | |
| 34 bool is_reported_; | |
| 35 const std::string key_system_; | |
| 36 const KeySystemSupportStatus status_; | |
| 37 }; | |
| 38 | |
| 39 OneTimeReporter::OneTimeReporter(const std::string& key_system, | |
| 40 KeySystemSupportStatus status) | |
| 41 : is_reported_(false), key_system_(key_system), status_(status) { | |
| 42 } | |
| 43 | |
| 44 OneTimeReporter::~OneTimeReporter() {} | |
| 45 | |
| 46 void OneTimeReporter::Report() { | |
| 47 if (is_reported_) | |
| 48 return; | |
| 49 | |
| 50 // Not using UMA_HISTOGRAM_ENUMERATION directly because UMA_* macros require | |
| 51 // the names to be constant throughout the process' lifetime. | |
| 52 base::LinearHistogram::FactoryGet( | |
| 53 kKeySystemSupportUMAPrefix + GetKeySystemNameForUMA(key_system_), 1, | |
| 54 KEY_SYSTEM_SUPPORT_STATUS_COUNT, KEY_SYSTEM_SUPPORT_STATUS_COUNT + 1, | |
| 55 base::Histogram::kUmaTargetedHistogramFlag)->Add(status_); | |
| 56 | |
| 57 is_reported_ = true; | |
| 58 } | |
| 59 | |
| 60 } // namespace | |
| 61 | |
| 62 class KeySystemsSupportUMA::Reporter { | |
| 63 public: | |
| 64 explicit Reporter(const std::string& key_system); | |
| 65 ~Reporter(); | |
| 66 | |
| 67 void Report(bool has_type, bool is_supported); | |
| 68 | |
| 69 private: | |
| 70 const std::string key_system_; | |
| 71 | |
| 72 OneTimeReporter call_reporter_; | |
| 73 OneTimeReporter call_with_type_reporter_; | |
| 74 OneTimeReporter support_reporter_; | |
| 75 OneTimeReporter support_with_type_reporter_; | |
| 76 }; | |
| 77 | |
| 78 KeySystemsSupportUMA::Reporter::Reporter(const std::string& key_system) | |
| 79 : key_system_(key_system), | |
| 80 call_reporter_(key_system, KEY_SYSTEM_QUERIED), | |
| 81 call_with_type_reporter_(key_system, KEY_SYSTEM_WITH_TYPE_QUERIED), | |
| 82 support_reporter_(key_system, KEY_SYSTEM_SUPPORTED), | |
| 83 support_with_type_reporter_(key_system, KEY_SYSTEM_WITH_TYPE_SUPPORTED) {} | |
| 84 | |
| 85 KeySystemsSupportUMA::Reporter::~Reporter() {} | |
| 86 | |
| 87 void KeySystemsSupportUMA::Reporter::Report(bool has_type, bool is_supported) { | |
| 88 call_reporter_.Report(); | |
| 89 if (has_type) | |
| 90 call_with_type_reporter_.Report(); | |
| 91 | |
| 92 if (!is_supported) | |
| 93 return; | |
| 94 | |
| 95 support_reporter_.Report(); | |
| 96 if (has_type) | |
| 97 support_with_type_reporter_.Report(); | |
| 98 } | |
| 99 | |
| 100 KeySystemsSupportUMA::KeySystemsSupportUMA() {} | |
| 101 | |
| 102 KeySystemsSupportUMA::~KeySystemsSupportUMA() {} | |
| 103 | |
| 104 void KeySystemsSupportUMA::AddKeySystemToReport(const std::string& key_system) { | |
| 105 DCHECK(!GetReporter(key_system)); | |
| 106 reporters_.set(key_system, scoped_ptr<Reporter>(new Reporter(key_system))); | |
| 107 } | |
| 108 | |
| 109 void KeySystemsSupportUMA::ReportKeySystemQuery(const std::string& key_system, | |
| 110 bool has_type) { | |
| 111 Reporter* reporter = GetReporter(key_system); | |
| 112 if (!reporter) | |
| 113 return; | |
| 114 reporter->Report(has_type, false); | |
| 115 } | |
| 116 | |
| 117 void KeySystemsSupportUMA::ReportKeySystemSupport(const std::string& key_system, | |
| 118 bool has_type) { | |
| 119 Reporter* reporter = GetReporter(key_system); | |
| 120 if (!reporter) | |
| 121 return; | |
| 122 reporter->Report(has_type, true); | |
| 123 } | |
| 124 | |
| 125 KeySystemsSupportUMA::Reporter* KeySystemsSupportUMA::GetReporter( | |
| 126 const std::string& key_system) { | |
| 127 Reporters::iterator reporter = reporters_.find(key_system); | |
| 128 if (reporter == reporters_.end()) | |
| 129 return NULL; | |
| 130 return reporter->second; | |
| 131 } | |
| 132 | |
| 133 } // namespace media | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1712903002:
Remove prefixed EME. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master