Fix #1698: use OpenSL ES to reimplement libjsound.so, fix javax.sound audio on Android - #1700
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razureink wants to merge 18 commits into
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Fix #1698: use OpenSL ES to reimplement libjsound.so, fix javax.sound audio on Android#1700razureink wants to merge 18 commits into
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…droid libjsound.so in JDK 25+ Android builds now links against libasound.so.2 (ALSA), which is not available on Android. This causes javax.sound operations to fail with UnsatisfiedLinkError. Changes: - Add minimal ALSA stub library (alsa_stub.c) that provides all the symbols libjsound.so needs, built with SONAME libasound.so.2 - Register ALSA stub in CMakeLists.txt so it gets compiled for all Android architectures and bundled in the APK - Update setUpJavaRuntime() in FCLauncher.java to load the ALSA stub before loading JDK libraries, ensuring libjsound.so can resolve its ALSA dependency - Skip libjsound.so in locateLibs() since it will be loaded lazily by the JVM when javax.sound is used, at which point the ALSA stub is already available
aaaapai
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Jul 24, 2026
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| # 仅在arm64-v8a架构下链接EGL和GLESv2 |
- Create jsound.c with full PortMixer JNI using OpenSL ES buffer queue - Add jsound target to CMakeLists.txt linking OpenSLES - Remove libjsound.so skip in locateLibs() in FCLauncher.java - Custom libjsound.so provides audio playback via OpenSL ES on Android - Fixes UnsatisfiedLinkError for javax.sound on JDK 25 without ALSA
…S to alsa_stub target
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…tAudioDeviceProvider, DirectAudioDevice)
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之前方案是在 alsa_stub 里集成 OpenSL ES 做音频输出，但会和 jsound 冲突，而且 CI 也编不过去。
现在把 alsa_stub 改回纯桩实现，不干实际音频的事，只保证 libjsound.so 链接不报错。音频输出由新增的 libjsound.so 来处理，它直接走 OpenSL ES，不需要 ALSA。
改动：