Mulai 27 Maret 2025, sebaiknya gunakan android-latest-release, bukan aosp-main, untuk mem-build dan berkontribusi pada AOSP. Untuk mengetahui informasi selengkapnya, lihat Perubahan pada AOSP.
AIDL Audio HAL
Tetap teratur dengan koleksi
Simpan dan kategorikan konten berdasarkan preferensi Anda.
Mulai Android 14, antarmuka Audio HAL
ditentukan menggunakan AIDL Stabil. Partner
dan vendor SoC dianjurkan untuk menerapkan ulang HAL Audio mereka guna menyediakan
antarmuka AIDL.
Memperluas library libaudiohal akan menambahkan dukungan framework untuk AIDL HAL.
Dengan implementasi AIDL, spesifikasi konfigurasi kebijakan audio
dipindahkan ke AIDL HAL. Dengan perubahan ini, Pengelola Kebijakan Audio (APM) mendapatkan
konfigurasi dari HAL, bukan menggunakannya dari file XML
yang disediakan vendor.
Audio AIDL HAL API
Bagian ini menjelaskan Core, Effects, dan Common HAL API untuk AIDL.
Gunakan implementasi default AIDL API di
/hardware/interfaces/audio/aidl/default/
sebagai referensi saat menerapkan versi baru Audio HAL yang
berinteraksi dengan driver kernel.
Lihat
file README Audio HAL
untuk mengetahui struktur direktori Audio HAL untuk AIDL.
HAL Inti
Beberapa antarmuka utama Core HAL,
menggunakan AIDL, adalah sebagai berikut:
HAL Efek
Beberapa antarmuka utama HAL Efek, menggunakan AIDL, adalah sebagai berikut:
Lihat Efek Audio untuk mengetahui informasi
selengkapnya.
HAL Umum
Struktur data dan antarmuka yang dibagikan di antara berbagai HAL seperti BT HAL, HAL
Audio inti, dan efek berada di HAL Umum.
Jenis data stabil umum
Definisi struktur data yang stabil digunakan oleh HAL dan framework.
Menguji Audio AIDL HAL API
Pengujian VTS
baru disediakan untuk antarmuka AIDL.
Tidak ada perubahan dalam versi HAL baru yang dapat memengaruhi keamanan.
Konten dan contoh kode di halaman ini tunduk kepada lisensi yang dijelaskan dalam Lisensi Konten. Java dan OpenJDK adalah merek dagang atau merek dagang terdaftar dari Oracle dan/atau afiliasinya.
Terakhir diperbarui pada 2025-07-27 UTC.
[[["Mudah dipahami","easyToUnderstand","thumb-up"],["Memecahkan masalah saya","solvedMyProblem","thumb-up"],["Lainnya","otherUp","thumb-up"]],[["Informasi yang saya butuhkan tidak ada","missingTheInformationINeed","thumb-down"],["Terlalu rumit/langkahnya terlalu banyak","tooComplicatedTooManySteps","thumb-down"],["Sudah usang","outOfDate","thumb-down"],["Masalah terjemahan","translationIssue","thumb-down"],["Masalah kode / contoh","samplesCodeIssue","thumb-down"],["Lainnya","otherDown","thumb-down"]],["Terakhir diperbarui pada 2025-07-27 UTC."],[],[],null,["# AIDL Audio HAL\n\nStarting with Android 14, the Audio HAL interface is\ndefined using [Stable AIDL](/docs/core/architecture/aidl/stable-aidl). Partners\nand SoC vendors are encouraged to reimplement their Audio HAL to provide an\nAIDL interface.\n\nExtending the `libaudiohal` library adds framework support for AIDL HAL.\nWith the AIDL implementation, the audio policy configuration specification is\nmoved to AIDL HAL. With this change, the Audio Policy Manager (APM) gets the\nconfiguration from the HAL instead of consuming it from the vendor-provided XML\nfile.\n\nAudio AIDL HAL API\n------------------\n\nThis section describes the Core, Effects, and Common HAL APIs for AIDL.\n\nUse default implementation of the AIDL API at\n[`/hardware/interfaces/audio/aidl/default/`](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/aidl/default/)\nas a reference when implementing new versions of Audio HALs that\ninteract with kernel drivers.\n\nSee the\n[Audio HAL README file](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/README.md)\nfor the Audio HAL directory structure for AIDL.\n\n### Core HAL\n\nSome of the [key interfaces of Core HAL](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/aidl/android/hardware/audio/core/),\nusing AIDL, are as follows:\n\n- [`IModule.aidl`](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/aidl/android/hardware/audio/core/IModule.aidl) is the entry point into the API.\n- Streams are unidirectional and are used by AudioFlinger to send or receive audio to and from the HAL through [`IStreamOut.aidl`](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/aidl/android/hardware/audio/core/IStreamOut.aidl) and [`IStreamIn.aidl`](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/aidl/android/hardware/audio/core/IStreamIn.aidl).\n- [`ITelephony.aidl`](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/aidl/android/hardware/audio/core/ITelephony.aidl) provides controls specific to telephony functions.\n- [`IBluetooth.aidl`](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/aidl/android/hardware/audio/core/IBluetooth.aidl) provides BT SCO and HFP controls that were on `IPrimaryModule` in the HIDL API.\n- [`IConfig.aidl`](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/aidl/android/hardware/audio/core/IConfig.aidl) provides system-wide configuration parameters.\n- [`ISoundDose.aidl`](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/aidl/android/hardware/audio/core/sounddose/ISoundDose.aidl) provides sound dose support. See [Sound dose](/docs/core/audio/sound-dose) for more information.\n- The latest version of the Core HAL API *in development* is in [`/hardware/interfaces/audio/aidl/android/hardware/audio/core/`](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/aidl/android/hardware/audio/core/).\n- The latest *released* version of the Core HAL API is in [`/hardware/interfaces/audio/aidl/aidl_api/android.hardware.audio.core/`](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/aidl/aidl_api/android.hardware.audio.core/).\n\n### Effects HAL\n\nSome of the key interfaces of Effects HAL, using AIDL, are as follows:\n\n- [`IFactory.aidl`](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/aidl/android/hardware/audio/effect/IFactory.aidl) is the entry point into the API.\n- [`Descriptor.aidl`](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/aidl/android/hardware/audio/effect/Descriptor.aidl) contains all information such as capabilities and attributes for an effect implementation.\n- [`Capability.aidl`](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/aidl/android/hardware/audio/effect/Capability.aidl) defines effect capabilities that don't change at runtime.\n- [`Parameter.aidl`](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/aidl/android/hardware/audio/effect/Parameter.aidl) defines all parameters supported by the effect instance.\n- [`IEffect.aidl`](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/aidl/android/hardware/audio/effect/IEffect.aidl) is used to configure and control particular effect instances.\n- Effect-specific parcelables named after the effect.\n\n- The latest version of the Effects HAL API *in development* is in [`/hardware/interfaces/audio/aidl/android/hardware/audio/effect/`](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/aidl/android/hardware/audio/effect/).\n\n- The latest *released* version of the Effects HAL API is in\n [`/hardware/interfaces/audio/aidl/aidl_api/android.hardware.audio.effect`](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/aidl/aidl_api/android.hardware.audio.effect/).\n\nSee the [Audio Effects](/docs/core/audio/audio-effects) for more\ninformation.\n\n### Common HAL\n\nData structures and interfaces shared between various HALs such as BT HAL, core\nand effects Audio HALs are in the Common HAL.\n\n- The latest version of the Common AIDL HAL *in development* is in\n [`/hardware/interfaces/audio/aidl/android/hardware/audio/common/`](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/aidl/android/hardware/audio/common/).\n\n- The latest *released* version of the Common HAL API is in\n [`/hardware/interfaces/audio/aidl/aidl_api/android.hardware.audio.common/current/android/hardware/audio/common/`](https://cs.android.com/android/platform/superproject/+/android-latest-release:hardware/interfaces/audio/aidl/aidl_api/android.hardware.audio.common/).\n\n#### Common stable data types\n\nStable data structure definitions are used both by HALs and the framework.\n\n- The latest version of the stable data types *in development* is in\n [`/system/hardware/interfaces/media/aidl/android/media/audio/common/`](https://cs.android.com/android/platform/superproject/+/android-latest-release:system/hardware/interfaces/media/aidl/android/media/audio/common/).\n\n- The latest *released* version of the stable data types is in\n [`/system/hardware/interfaces/media/aidl_api/android.media.audio.common.types/`](https://cs.android.com/android/platform/superproject/+/android-latest-release:system/hardware/interfaces/media/aidl_api/android.media.audio.common.types/).\n\nTesting the Audio AIDL HAL API\n------------------------------\n\nNew [VTS](https://android.googlesource.com/platform/hardware/interfaces/+/refs/heads/android16-release/audio/aidl/vts/)\ntests are provided for the AIDL interface.\n\nThere are no changes in the new HAL version that can affect security."]]
