Feature: Intent-based Automation for PowerPlay Sample

[madebymozart]

Description: Intent-based Automation and Stress-Testing for PowerPlay

Summary

This PR implements a robust command-line interface for the PowerPlay sample app via Android Intents. This enables full control of the audio engine via adb, facilitating automated power profiling, stress testing, and validation of PCM Offload behavior without manual UI interaction.

Changes

• Intent Command Dispatcher: Added an Intent listener in MainActivity.java to trigger engine actions and configuration changes.
• Performance Mode Management: Support for switching between none, lowlat, powersave, and offload via commands.
• Stress Test Features: Added a toggle_offload mode to test system stability during rapid resource transitions.
• Automation Hooks: Added duration_ms for self-terminating tests and a background flag to test system behavior during display-off/doze transitions.
• Machine-Readable Logging: Implemented POWERPLAY_STATUS logcat outputs for easy parsing by external automation scripts.

Supported ADB Parameters

Parameter	Type	Description
command	string	Action: play, pause, stop
perf_mode	string	Mode: none, lowlat, powersave, offload
song_index	int	Track index (0-2)
volume	int	Volume percentage (0-100)
background	bool	Move app to background after starting
duration_ms	int	Auto-stop after N milliseconds
toggle_offload	bool	Enable offload/on-load stress test

How to Test

You can verify the automation by running the following command to start a timed, background offload session:

adb shell am start -n com.google.oboe.samples.powerplay/.MainActivity \
    --es command play \
    --es perf_mode offload \
    --ez background true \
    --ei duration_ms 10000

[flamme]

Q: is the playback loop by default?

[madebymozart]

@flamme yes, we can maybe also add a loop button to the player controls to control this better.