mirror of git://f0xx.org/ac/ac-mobile-android synced 2026-07-29 02:58:06 +03:00

Files

Anton Afanasyeu fb8b0c43e7 codecs: add native build scripts for libvpx/opus/speex + fix CMake includes

- scripts/build-native-codecs.sh: cross-compile libvpx, opus, speex for
  Android ABIs (arm64-v8a, armeabi-v7a, x86_64) using NDK clang with -fPIC
- scripts/android-ndk.sh: NDK root detection helper
- scripts/native-build-cache.sh: ccache detection helper
- scripts/init-third-party-submodules.sh: init codec submodules
- scripts/ensure-gradle-wrapper.sh: gradle wrapper sanity check
- scripts/adb-reconnect.sh: ADB device discovery helpers
- ndk/CMakeLists.txt: per-ABI include dirs for opus/ and speex_config_types.h

Co-authored-by: Cursor <cursoragent@cursor.com>

2026-06-28 23:07:17 +02:00

jni

codecs: real Opus + Speex JNI encode/decode; SFU gate enabled

2026-06-28 22:27:44 +02:00

obfuscate

initial

2026-06-23 12:30:10 +02:00

CMakeLists.txt

codecs: add native build scripts for libvpx/opus/speex + fix CMake includes

2026-06-28 23:07:17 +02:00

README.md

initial

2026-06-23 12:30:10 +02:00

README.md

Native codecs (libvpx, Opus, Speex)

The app loads libandroidcast_codecs.so for availability probes and future software encode/decode paths.

Current status

Component	Java	Native	Notes
FEC 3/4 + RS	Yes	—	v2 per-shard on wire (`FecShardWire`); v1 monolithic decode still accepted
NACK + retransmit cache	Yes	—	UDP `MSG_NACK`, combined with FEC when enabled
libvpx VP8/VP9	Native	Encode + decode	Screen cast via ImageReader; receiver libvpx (decoder uses `VPX_CODEC_USE_ERROR_CONCEALMENT` when supported) or MediaCodec fallback
Opus / Speex	Probe + static link when `lib*.a` built	Encode/decode JNI sinks	`scripts/build-native-codecs.sh` → CMake autolink

Enable native codecs (developer)

Initialize all third-party submodules:

bash scripts/init-third-party-submodules.sh

Build static libs per ABI (NDK auto-detected via scripts/android-ndk.sh):
```
./scripts/build-native-codecs.sh arm64-v8a
./scripts/build-native-codecs.sh armeabi-v7a   # if shipped in APK
```
If the repo path has spaces, the script stages under /tmp/androidcast-libvpx-$USER.
Gradle / CMake link build/native/<abi>/lib*.a when present and set ANDROIDCAST_HAVE_LIBVPX, ANDROIDCAST_HAVE_OPUS, ANDROIDCAST_HAVE_SPEEX accordingly.
./gradlew assembleDebug

Optional override: ANDROIDCAST_LIBVPX_LIB only applies when its path contains the current ABI name (e.g. .../arm64-v8a/libvpx.a).

ABIs without matching .a files still build; missing codecs are disabled on those architectures.

Stream protection defaults

Default: None (no FEC/NACK)
Enable in Global settings → Stream protection (UDP)
After handshake, sender and receiver negotiate the effective mode (no protocol version bump)
Until negotiation completes, UDP protection stays off; peers without FEC support ignore protected frames

Full checklist: docs/ROADMAP.md