Starting March 27, 2025, we recommend using android-latest-release
instead of aosp-main
to build and contribute to AOSP. For more information, see Changes to AOSP.
EVS Overview
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This Extended View System (EVS) 1.1 Integration Guide describes changes made
since the previous Android release.
Android contains the HIDL Hardware Abstraction Layer (HAL), which provides for
imagery capture, is displayed early in the Android boot process, and continues
to function for the life of the system. The HAL includes the Extended View
System (EVS) stack, which is used to support rearview and surround view
displays in vehicles with Android-based In-Vehicle Infotainment (IVI)
systems.
Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
Last updated 2024-09-03 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-09-03 UTC."],[],[],null,["# EVS Overview\n\nThis *Extended View System (EVS) 1.1 Integration Guide* describes changes made\nsince the previous Android release.\n\nAndroid contains the HIDL Hardware Abstraction Layer (HAL), which provides for\nimagery capture, is displayed early in the Android boot process, and continues\nto function for the life of the system. The HAL includes the Extended View\nSystem (EVS) stack, which is used to support rearview and surround view\ndisplays in vehicles with Android-based In-Vehicle Infotainment (IVI)\nsystems.\n\n| Title | Description |\n|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| [Event and Frame Notification Mechanism](/docs/automotive/camera/evs/event_frame) | Callback mechanism that allows the EVS manager and hardware (HW) module to notify any streaming event in the application. |\n| [Programming Camera Control Parameters](/docs/automotive/camera/evs/camera_control) | Getter and setter methods to change camera parameters while the video stream is active. |\n| [Changes to Camera and System Configuration](/docs/automotive/camera/evs/camera_system) | New configuration manager to enable the application to retrieve camera and imaging characteristics from the HAL. |\n| [Frame Metadata](/docs/automotive/camera/evs/frame_metadata) | Frame metadata is a member of the BufferDesc data structure. |\n| [Automotive Display Proxy Service](/docs/automotive/camera/evs/display_proxy) | New service to enable HAL implementations to use SurfaceFlinger. |\n| [Multi-Camera Support](/docs/automotive/camera/evs/multi_camera) | Logical camera device that consists of multiple physical camera devices. |\n| [Vehicle Camera HAL](/docs/automotive/camera/evs/camera-hal) | The HAL includes the EVS stack and is used to support rearview camera and surround view displays in vehicles with Android-based In-Vehicle Infotainment (IVI) systems. |"]]