I’m trying to load the androidmedia plugin for an Android app and it fails to load and there’s no documentation on how to handle any of this.
07-04 19:39:07.143 13932 I Plugin : [GStreamer] plugin "(NULL)" looks good
07-04 19:39:07.144 13932 13967 I Plugin : [GStreamer] Could not find 'JNI_CreateJavaVM' in '(NULL)': 'JNI_CreateJavaVM': undefined symbol: JNI_CreateJavaVM
07-04 19:39:07.145 13932 13967 I Plugin : [GStreamer] Failed to locate required JNI symbols in '(NULL)': 'JNI_GetCreatedJavaVMs': undefined symbol: JNI_GetCreatedJavaVMs
07-04 19:39:07.146 13932 13967 I Plugin : [GStreamer] Failed to load Java module 'libdvm': dlopen failed: library "libdvm.so" not found
07-04 19:39:07.146 13932 13967 I Plugin : [GStreamer] plugin "(NULL)" failed to initialise
Cmakelists
cmake_minimum_required(VERSION 3.18)
project(gstplugin LANGUAGES C CXX)
set(GSTREAMER_ROOT_ANDROID "{redacted}")
set(ANDROID_ABI "arm64-v8a")
set(ANDROID_PLATFORM 21)
if(NOT DEFINED ANDROID_TOOLCHAIN)
set(ANDROID_TOOLCHAIN "${ANDROID_NDK}/build/cmake/android.toolchain.cmake")
endif()
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
add_library(gstplugin SHARED gst_plugin.cpp)
target_include_directories(gstplugin PRIVATE
"${GSTREAMER_ROOT_ANDROID}/include/gstreamer-1.0"
"${GSTREAMER_ROOT_ANDROID}/include/glib-2.0"
"${GSTREAMER_ROOT_ANDROID}/lib/glib-2.0/include"
)s
target_link_libraries(gstplugin
"${GSTREAMER_ROOT_ANDROID}/lib/libgobject-2.0.a"
"${GSTREAMER_ROOT_ANDROID}/lib/libglib-2.0.a"
"${GSTREAMER_ROOT_ANDROID}/lib/libgmodule-2.0.a"
"${GSTREAMER_ROOT_ANDROID}/lib/libintl.a"
"${GSTREAMER_ROOT_ANDROID}/lib/libpcre2-8.a"
"${GSTREAMER_ROOT_ANDROID}/lib/libpcre2-posix.a"
"${GSTREAMER_ROOT_ANDROID}/lib/libffi.a"
"${GSTREAMER_ROOT_ANDROID}/lib/libiconv.a"
"${GSTREAMER_ROOT_ANDROID}/lib/libgstvideo-1.0.a"
"${GSTREAMER_ROOT_ANDROID}/lib/libz.a"
"${GSTREAMER_ROOT_ANDROID}/lib/libgstnet-1.0.a"
"${GSTREAMER_ROOT_ANDROID}/lib/libgstaudio-1.0.a"
"${GSTREAMER_ROOT_ANDROID}/lib/liborc-0.4.a"
"${GSTREAMER_ROOT_ANDROID}/lib/libgsttag-1.0.a"
"${GSTREAMER_ROOT_ANDROID}/lib/libgstpbutils-1.0.a"
"${GSTREAMER_ROOT_ANDROID}/lib/libgstcodecparsers-1.0.a"
"${GSTREAMER_ROOT_ANDROID}/lib/libgstgl-1.0.a"
"${GSTREAMER_ROOT_ANDROID}/lib/libgstphotography-1.0.a"
log
android
EGL
GLESv2
"${GSTREAMER_ROOT_ANDROID}/lib/libgstbase-1.0.a"
"${GSTREAMER_ROOT_ANDROID}/lib/libgstapp-1.0.a"
"${GSTREAMER_ROOT_ANDROID}/lib/libgstreamer-1.0.a"
"${GSTREAMER_ROOT_ANDROID}/lib/libgstrtp-1.0.a"
"${GSTREAMER_ROOT_ANDROID}/lib/libgio-2.0.a"
"${GSTREAMER_ROOT_ANDROID}/lib/gstreamer-1.0/libgstudp.a"
"${GSTREAMER_ROOT_ANDROID}/lib/gstreamer-1.0/libgstrtp.a"
"${GSTREAMER_ROOT_ANDROID}/lib/gstreamer-1.0/libgstandroidmedia.a"
"${GSTREAMER_ROOT_ANDROID}/lib/gstreamer-1.0/libgstvideoconvertscale.a"
"${GSTREAMER_ROOT_ANDROID}/lib/gstreamer-1.0/libgstvideoparsersbad.a"
)
target_compile_options(gstplugin PRIVATE -fno-exceptions -fno-rtti)
target_compile_definitions(gstplugin PRIVATE
GST_PLUGIN_BUILD_STATIC
)
I don’t know where these JNI functions are supposed to come from. All the docs and tutorials reference a libgstreamer_android.so which doesn’t exist in the tarballs nor a cerbero build. Where do I get these JNI imports from and where is this documented?