Add microphone streaming support for Apollo-compatible hosts

[logabell]

Summary

Ports microphone streaming support from my Moonlight mic forks into Artemis Android so the client can capture microphone audio locally and stream it to Apollo-compatible hosts.

This is intended to work with ClassicOldSong/Apollo#1428.

Dependency

This draft depends on the companion moonlight-common-c PR:

• ClassicOldSong/moonlight-common-c#1

The current branch keeps the submodule URL pointed at my fork so the Android branch can be checked out and tested immediately. Once the common-c PR lands, I can rebase this PR back onto the upstream submodule URL and commit.

User-facing changes

• add a microphone enable toggle in stream settings
• request RECORD_AUDIO when microphone capture is enabled
• add microphone input device selection on Android M+
• add a live microphone preview meter in settings
• fall back to the default microphone if a saved input device disappears
• start and stop microphone capture with the stream lifecycle

Implementation

• thread enableMicrophone through Game -> StreamConfiguration -> NvConnection -> MoonBridge
• add JNI/native microphone setup, PCM queueing, streaming, and teardown
• capture 48 kHz mono PCM16 with AudioRecord
• encode and send Opus microphone frames through moonlight-common-c
• add Robolectric coverage for microphone preference persistence and MoonBridge forwarding
• improve preview sensitivity and deduplicate repeated Android input device entries seen on some tablets

Source forks

• Android branch: logabell/moonlight-android:codex/mic-android
• common-c branch: logabell/moonlight-common-c:codex/mic-common-c
• reference Qt client fork: logabell/moonlight-qt-mic

Testing

Focused verification completed on my fork:

• :app:assembleNonRoot_gameDebug
• NvConnectionMicrophoneTest
• StreamConfigurationTest
• PreferenceConfigurationTest

A test build is available via Obtainium from my fork:

• repo: logabell/moonlight-android
• release: v20.2.6-mic-test2

On device, Obtainium can be pointed at the fork repo above to install the published arm64-v8a debug APK for manual validation. The test build uses the Artemis-mic app label so it can be installed alongside an existing Artemis install.

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Catch AudioRecord.Builder failures before trying fallback sources

createCaptureConfig() intentionally probes UNPROCESSED, then VOICE_RECOGNITION, then MIC, but buildAudioRecord() lets AudioRecord.Builder.build() throw on unsupported parameters/device states. On Android N+ devices that advertise no usable UNPROCESSED input, opening Stream Settings or starting a stream with microphone enabled will crash here instead of falling back to the later sources, so the new microphone feature is unavailable on a substantial set of phones/tablets.

Useful? React with 👍 / 👎.

[chatgpt-codex-connector]

Disambiguate duplicate microphone labels instead of dropping devices

This map uses the human-readable label as the uniqueness key, but describeDevice() returns generic names such as "Built-in microphone" and "USB microphone" for many inputs. On devices with multiple built-in mics or two identical USB/Bluetooth headsets, only the first device survives this loop, so users cannot select the intended input and a saved device ID can be silently lost when the list is rebuilt.

Useful? React with 👍 / 👎.