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How to change audio device for Android - stm32mpu
https://wiki.st.com/stm32mpu/wiki/How_to_change_audio_device_for_Android#:~:text=The%20audio%20policy%20manager%20is%20required%20in%20Android%2C,default%20audio%20policy%20manager%20is%20implemented%20within%20frameworks%2Fav%2Fservices%2Faudiopolicy%2Fmanagerdefault%2F.
Configuring Audio Policies | Android Open Source Project
https://source.android.com/devices/audio/implement-policy
As in the CONF file, the XML file enables defining the number and typesof output and input stream profiles, devices usable for playback and capture, andaudio attributes. In addition, the XML format offers the following enhancements: 1. In Android 10, more than one active recording app isallowed simultaneously. 1.1. Recording start is nev…
Android Audio Policy, defined devices and default routing ...
https://stackoverflow.com/questions/63528572/android-audio-policy-defined-devices-and-default-routing
I dig a bit around the C++ code of Android Audio Policy, but I am struggling to connect the dots. I know Android is providing an API to force the audio output for an application but I would like to know if it is possible to modify the way Android handles its outputs directly, through the configuration.
Android Hardware Abstraction Layer: audio_policy Struct ...
https://source.android.com/reference/hal/structaudio__policy
void (* set_can_mute_enforced_audible) (struct audio_policy *pol, bool can_mute) Definition at line 119 of file audio_policy.h . int (* set_device_connection_state) (struct audio_policy *pol, audio_devices_t device, audio_policy_dev_state_t state, const char *device_address) Definition at line 89 of file audio_policy.h .
services/audiopolicy/config/audio_policy_configuration.xml ...
https://android.googlesource.com/platform/frameworks/av/+/dc46286/services/audiopolicy/config/audio_policy_configuration.xml
There is one section per audio HW module present on the platform. Each module section will contains two mandatory tags for audio HAL “halVersion” and “name”. “devicePorts”: a list of device descriptors for all input and output devices accessible via this. module. This contains both permanently attached devices and removable devices.
GitHub - theaosp/audio-policy-: Audio layer for Android ...
https://github.com/theaosp/audio-policy-
Audio layer for Android Open source project. Contribute to theaosp/audio-policy- development by creating an account on GitHub.
Android Audio Framework Architecture - Bits & Qubits
http://gopinaths.gitlab.io/post/android-audio-framework-architecture/
Android Audio Manager Audio policy service is a service responsible for all actions that require a policy decision to be made first, such as opening a new I/O audio stream, re-routing after a change, and stream volume management. This audio policy source code is located in the below path. frameworks/av/services/audiopolicy
How to change audio device for Android - stm32mpu
https://wiki.st.com/stm32mpu/wiki/How_to_change_audio_device_for_Android
The audio policy manager is required in Android, in charge of making all the audio related decisions (ex: audio output device selection, audio input device selection, audio routing, volume, mute...). A default audio policy manager is implemented within frameworks/av/services/audiopolicy/managerdefault/ .
platform_hardware_libhardware/audio_policy.h at master ...
https://github.com/aosp-mirror/platform_hardware_libhardware/blob/master/include/hardware/audio_policy.h
* The platform specific audio policy manager is in charge of the audio * routing and volume control policies for a given platform. * The main roles of this module are: * - keep track of current system state (removable device connections, phone * state, user requests...). * System state changes and user actions are notified to audio policy
Waiting for service media.audio_policy on android boot ...
https://stackoverflow.com/questions/26375690/waiting-for-service-media-audio-policy-on-android-boot
Waiting for service media.audio_policy on android boot. Ask Question Asked 7 years, 3 months ago. Active 4 years, 9 months ago. Viewed 6k times 9 i am developing cyanogenmod 11 for my device samsung sm-g7102 garnd2 but it does not boot and gives bootloop on cyanogenmod logo. the logcat shows following # W/AudioSystem( 684): …
Handling changes in audio output | Android Developers
https://developer.android.com/guide/topics/media-apps/volume-and-earphones
Android uses separate audio streams for playing music, alarms, notifications, the incoming call ringer, system sounds, in-call volume, and DTMF tones. This allows users to control the volume of each stream independently. By default, pressing the volume control modifies the volume of the active audio stream.
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