1 /* 2 * Copyright (c) 2015 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef MODULES_AUDIO_DEVICE_ANDROID_BUILD_INFO_H_ 12 #define MODULES_AUDIO_DEVICE_ANDROID_BUILD_INFO_H_ 13 14 #include <jni.h> 15 #include <memory> 16 #include <string> 17 18 #include "modules/utility/include/jvm_android.h" 19 20 namespace webrtc { 21 22 // This enumeration maps to the values returned by BuildInfo::GetSdkVersion(), 23 // indicating the Android release associated with a given SDK version. 24 // See https://developer.android.com/guide/topics/manifest/uses-sdk-element.html 25 // for details. 26 enum SdkCode { 27 SDK_CODE_JELLY_BEAN = 16, // Android 4.1 28 SDK_CODE_JELLY_BEAN_MR1 = 17, // Android 4.2 29 SDK_CODE_JELLY_BEAN_MR2 = 18, // Android 4.3 30 SDK_CODE_KITKAT = 19, // Android 4.4 31 SDK_CODE_WATCH = 20, // Android 4.4W 32 SDK_CODE_LOLLIPOP = 21, // Android 5.0 33 SDK_CODE_LOLLIPOP_MR1 = 22, // Android 5.1 34 SDK_CODE_MARSHMALLOW = 23, // Android 6.0 35 SDK_CODE_N = 24, 36 }; 37 38 // Utility class used to query the Java class (org/webrtc/voiceengine/BuildInfo) 39 // for device and Android build information. 40 // The calling thread is attached to the JVM at construction if needed and a 41 // valid Java environment object is also created. 42 // All Get methods must be called on the creating thread. If not, the code will 43 // hit RTC_DCHECKs when calling JNIEnvironment::JavaToStdString(). 44 class BuildInfo { 45 public: 46 BuildInfo(); ~BuildInfo()47 ~BuildInfo() {} 48 49 // End-user-visible name for the end product (e.g. "Nexus 6"). 50 std::string GetDeviceModel(); 51 // Consumer-visible brand (e.g. "google"). 52 std::string GetBrand(); 53 // Manufacturer of the product/hardware (e.g. "motorola"). 54 std::string GetDeviceManufacturer(); 55 // Android build ID (e.g. LMY47D). 56 std::string GetAndroidBuildId(); 57 // The type of build (e.g. "user" or "eng"). 58 std::string GetBuildType(); 59 // The user-visible version string (e.g. "5.1"). 60 std::string GetBuildRelease(); 61 // The user-visible SDK version of the framework (e.g. 21). See SdkCode enum 62 // for translation. 63 SdkCode GetSdkVersion(); 64 65 private: 66 // Helper method which calls a static getter method with |name| and returns 67 // a string from Java. 68 std::string GetStringFromJava(const char* name); 69 70 // Ensures that this class can access a valid JNI interface pointer even 71 // if the creating thread was not attached to the JVM. 72 AttachCurrentThreadIfNeeded attach_thread_if_needed_; 73 74 // Provides access to the JNIEnv interface pointer and the JavaToStdString() 75 // method which is used to translate Java strings to std strings. 76 std::unique_ptr<JNIEnvironment> j_environment_; 77 78 // Holds the jclass object and provides access to CallStaticObjectMethod(). 79 // Used by GetStringFromJava() during construction only. 80 JavaClass j_build_info_; 81 }; 82 83 } // namespace webrtc 84 85 #endif // MODULES_AUDIO_DEVICE_ANDROID_BUILD_INFO_H_ 86