From c1028fc7a06d33caebe9ef536f7b2811c5b9c0ad Mon Sep 17 00:00:00 2001
From: wyc <1104749580@qq.com>
Date: Tue, 11 Aug 2026 09:24:11 +0800
Subject: [PATCH] =?UTF-8?q?=E6=9E=B6=E6=9E=84=E5=BE=AE=E8=B0=83?=
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---
 0_cmake_library/register/export.cmake         |  4 +-
 0_cmake_library/register/libdatachannel.cmake | 60 +++++++++++++++++++
 0_cmake_library/register/webrtc.cmake         |  0
 3 files changed, 62 insertions(+), 2 deletions(-)
 create mode 100644 0_cmake_library/register/libdatachannel.cmake
 delete mode 100644 0_cmake_library/register/webrtc.cmake

diff --git a/0_cmake_library/register/export.cmake b/0_cmake_library/register/export.cmake
index d3bdfa0..79b8548 100644
--- a/0_cmake_library/register/export.cmake
+++ b/0_cmake_library/register/export.cmake
@@ -5,8 +5,8 @@ include("${CMAKE_CURRENT_LIST_DIR}/computer_graphics.cmake")
 include("${CMAKE_CURRENT_LIST_DIR}/libarchive.cmake")
 include("${CMAKE_CURRENT_LIST_DIR}/with_qt.cmake")
 include("${CMAKE_CURRENT_LIST_DIR}/osg_earth.cmake")
-
-if(DEFINED ENV{VULKAN_SDK} OR NOT "$ENV{VULKAN_SDK}" STREQUAL "")
+include("${CMAKE_CURRENT_LIST_DIR}/libdatachannel.cmake")
+if (DEFINED ENV{VULKAN_SDK} OR NOT "$ENV{VULKAN_SDK}" STREQUAL "")
     include("${CMAKE_CURRENT_LIST_DIR}/vsg_cesium.cmake")
 endif ()
 
diff --git a/0_cmake_library/register/libdatachannel.cmake b/0_cmake_library/register/libdatachannel.cmake
new file mode 100644
index 0000000..3ffccf0
--- /dev/null
+++ b/0_cmake_library/register/libdatachannel.cmake
@@ -0,0 +1,60 @@
+include_guard(GLOBAL)
+block()
+    set(libdatachannel_opts ${base_option_list})
+    list(APPEND libdatachannel_opts
+            -DBUILD_SHARED_LIBS=OFF
+            -DBUILD_SHARED_DEPS_LIBS=OFF
+            -DUSE_GNUTLS=OFF
+            -DUSE_MBEDTLS=OFF
+            -DUSE_NICE=OFF
+            -DPREFER_SYSTEM_LIB=OFF
+            -DNO_WEBSOCKET=ON
+            -DNO_MEDIA=OFF
+            -DNO_EXAMPLES=ON
+            -DNO_TESTS=ON
+            -DWARNINGS_AS_ERRORS=OFF
+            -DSCTP_DEBUG=OFF
+            -DRTC_UPDATE_VERSION_HEADER=OFF
+            -DCMAKE_POSITION_INDEPENDENT_CODE=ON
+            -DCMAKE_INSTALL_LIBDIR=lib
+    )
+    _register_git_cmake_library(global::libdatachannel
+            "https://github.com/paullouisageneau/libdatachannel.git"
+            "v0.24.3"
+    )
+    rcl_cmake_library_set_cmake_options(global::libdatachannel ${libdatachannel_opts})
+    rcl_get_effective_install_dir(global::libdatachannel WEBRTC_ROOT)
+    set(WEBRTC_INCLUDE_DIR "${WEBRTC_ROOT}/include")
+    set(WEBRTC_CMAKE_DIR "${WEBRTC_ROOT}/lib/cmake/LibDataChannel")
+    if (MSVC)
+        set(WEBRTC_LIBRARY "${WEBRTC_ROOT}/lib/datachannel.lib")
+    else ()
+        set(WEBRTC_LIBRARY "${WEBRTC_ROOT}/lib/libdatachannel.a")
+    endif ()
+    rcl_cmake_library_set_other_use_opt(global::libdatachannel
+            "-DLibDataChannel_DIR=\"${WEBRTC_CMAKE_DIR}\""
+            "-DWEBRTC_ROOT=\"${WEBRTC_ROOT}\""
+            "-DWEBRTC_INCLUDE_DIR=\"${WEBRTC_INCLUDE_DIR}\""
+            "-DWEBRTC_INCLUDE_DIRS=\"${WEBRTC_INCLUDE_DIR}\""
+            "-DWEBRTC_LIBRARY=\"${WEBRTC_LIBRARY}\""
+    )
+    rcl_cmake_library_set_init_script(global::libdatachannel
+            "set(WEBRTC_ROOT \"${WEBRTC_ROOT}\")"
+            "set(WEBRTC_INCLUDE_DIR \"${WEBRTC_INCLUDE_DIR}\")"
+            "set(WEBRTC_INCLUDE_DIRS \"${WEBRTC_INCLUDE_DIR}\")"
+            "set(WEBRTC_LIBRARY \"${WEBRTC_LIBRARY}\")"
+            "set(LibDataChannel_DIR \"${WEBRTC_CMAKE_DIR}\")"
+            "find_package(Threads REQUIRED)"
+            "find_package(OpenSSL REQUIRED)"
+            "find_package(LibDataChannel CONFIG REQUIRED)"
+            "set(WEBRTC_LIBRARIES LibDataChannel::LibDataChannel)"
+    )
+    rcl_cmake_library_set_clear_script(global::libdatachannel
+            "unset(WEBRTC_ROOT)"
+            "unset(WEBRTC_INCLUDE_DIR)"
+            "unset(WEBRTC_INCLUDE_DIRS)"
+            "unset(WEBRTC_LIBRARY)"
+            "unset(WEBRTC_LIBRARIES)"
+            "unset(LibDataChannel_DIR)"
+    )
+endblock()
\ No newline at end of file
diff --git a/0_cmake_library/register/webrtc.cmake b/0_cmake_library/register/webrtc.cmake
deleted file mode 100644
index e69de29..0000000