Initial commit

native/CMakeLists.txt

@@ -0,0 +1,57 @@
+cmake_minimum_required(VERSION 3.22.1)
+project(camera_hook LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_POSITION_INDEPENDENT_CODE ON)
+
+# Find Android libraries
+find_library(log-lib log)
+find_library(dl-lib dl)
+find_library(mediandk-lib mediandk)
+find_library(android-lib android)
+
+# HAL hook shared library
+add_library(camera_hook SHARED
+    src/camera_wrapper.cpp
+    src/video_decoder.cpp
+    src/rtsp_client.cpp
+    src/buffer_converter.cpp
+)
+
+target_include_directories(camera_hook PRIVATE
+    ${CMAKE_SOURCE_DIR}/include
+)
+
+target_link_libraries(camera_hook
+    ${log-lib}
+    ${dl-lib}
+    ${mediandk-lib}
+    ${android-lib}
+)
+
+# Compiler flags for LD_PRELOAD hook
+target_compile_options(camera_hook PRIVATE
+    -Wall
+    -Wextra
+    -fvisibility=hidden
+    -fPIC
+)
+
+# Enable NEON intrinsics for ARM64
+if(ANDROID_ABI STREQUAL "arm64-v8a")
+    target_compile_options(camera_hook PRIVATE -march=armv8-a+simd)
+endif()
+
+# Output name
+set_target_properties(camera_hook PROPERTIES
+    OUTPUT_NAME "camera_hook"
+    LIBRARY_OUTPUT_DIRECTORY "${CMAKE_SOURCE_DIR}/../app/src/main/jniLibs/${ANDROID_ABI}"
+)
+
+# Camera provider wrapper (static C binary, bind-mounted over original)
+add_executable(camera_provider_wrapper src/camera_provider_wrapper.c)
+target_link_options(camera_provider_wrapper PRIVATE -static)
+set_target_properties(camera_provider_wrapper PROPERTIES
+    RUNTIME_OUTPUT_DIRECTORY "${CMAKE_SOURCE_DIR}/../root-module"
+)