add source code

CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.16)
+
+project(hello-ffmpeg LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+link_directories("/Users/lenn/ffmpeg_build/lib")
+include_directories("/Users/lenn/ffmpeg_build/include")
+
+add_executable(hello-ffmpeg main.cpp)
+target_link_libraries(${PROJECT_NAME} PRIVATE avutil)
+
+include(GNUInstallDirs)
+install(TARGETS hello-ffmpeg
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+)

main.cpp

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+#include <iostream>
+extern "C" {
+#include <libavutil/avutil.h>
+}
+
+using namespace std;
+
+int main()
+{
+    cout << "FFmpeg 版本:" << av_version_info();
+    return 0;
+}