ffmpeg support

ffmpeg-audio/CMakeLists.txt

@@ -0,0 +1,29 @@
+cmake_minimum_required(VERSION 3.14)
+
+project(ffmpeg_audio LANGUAGES C CXX)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+add_library(ffmpeg_audio SHARED
+    ffmpeg_audio.cpp
+    ffmpeg_audio.h
+)
+
+add_executable(demo_ffmpeg_audio
+    demo_ffmpeg_audio.c
+)
+
+if(WIN32)
+    set(FFMPEG_LIB ${CMAKE_CURRENT_SOURCE_DIR}/ffmpeg-win/lib)
+    set(FFMPEG_INC ${CMAKE_CURRENT_SOURCE_DIR}/ffmpeg-win/include)
+    include_directories(${FFMPEG_INC})
+    target_link_directories(ffmpeg_audio PRIVATE ${FFMPEG_LIB})
+    set(FFMPEG_LIBRARIES avcodec.lib avformat.lib swresample.lib avutil.lib avdevice.lib avfilter.lib swscale.lib)
+    target_link_directories(demo_ffmpeg_audio PRIVATE ${FFMPEG_LIB})
+endif()
+
+target_link_libraries(ffmpeg_audio PRIVATE ${FFMPEG_LIBRARIES})
+target_compile_definitions(ffmpeg_audio PRIVATE LIB_COMPILE)
+
+target_link_Libraries(demo_ffmpeg_audio PRIVATE ffmpeg_audio ${FFMPEG_LIBRARIES})