Opus playback never worked: feed() called dequeueInputBuffer() on a
codec in async-callback mode, which always throws, so every packet
was silently dropped. Feed input through the async callback with a
bounded pending queue instead.

Make bring-up transactional: roll back partially opened streams and
the server shell on failure, join reader threads on stop, and close
the owning ADB streams before releasing sinks. Replace the
openAbstract watchdog thread with a real timeout in the vendored
AdbConnection.open(), which also removes the half-open stream from
the lookup table on failure.

Harden the activity: release owned Surfaces, gate callbacks on a
destroyed flag and a session generation, serialize reconnect, and
handle target replacement via singleTask + onNewIntent. Propagate
device-list write failures instead of swallowing them, bound the
clipboard payload and the video pending queue against hostile
peers, and discard incomplete recordings instead of keeping corrupt
files.

Use the mediaPlayback foreground-service type; Android 15 stops
dataSync services after six hours. Drop the unused
ACCESS_NETWORK_STATE permission.

reconfigure() tears the codec down outside the lock, so an in-flight
MediaCodec callback can reach submit() while `codec` is null. The NPE
lands on the callback handler thread, which has no catch and kills
the process. Drop the frame instead, like any back-pressure casualty.

Also rewrite the back-pressure comment: it described a keyframe-aware
drop policy this class cannot implement (the keyframe flag never
reaches it). The real policy protects config frames only.

Native Java app for Android 12+ that mirrors another Android
device over wireless ADB, forwarding video, audio, touch input,
and clipboard. Bundles a pinned scrcpy-server.jar and the
vendored libadb-android stack. Supports h264/h265/av1 video and
raw/opus audio with in-app codec selection. No NDK, no Kotlin.
Includes JVM unit tests and a Docker-based emulator e2e rig.