Merge pull request #75 from maidamai0/master

👌 IMPROVE: add cmake script

Author: leandromoreira

.gitignore

@@ -4,3 +4,6 @@ bunny_1080p_60fps.mp4
 bunny_1s_gop.mp4
 bunny_1s_gop.mp4.ts
 bunny_1s_gop.mp4.webm
+.vscode
+.clangd
+compile_commands.json

CMakeLists.txt

@@ -0,0 +1,49 @@
+cmake_minimum_required(VERSION 3.17)
+project(libav_tutorial)
+
+# set out direcroty
+set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
+set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
+
+# set ffmeg root directory
+if(NOT FFMPEG_DEV_ROOT)
+    message(FATAL_ERROR "set FFMPEG_DEV_ROOT to use ffmpeg libraries")
+endif()
+
+# set ffmpeg develop environment
+include_directories(${FFMPEG_DEV_ROOT}/include)
+link_directories(${FFMPEG_DEV_ROOT}/lib)
+link_libraries(
+    avcodec
+    avformat
+    avfilter
+    avdevice
+    swresample
+    swscale
+    avutil
+)
+
+# copy dlls 
+file(GLOB ffmpeg_shared_libries ${FFMPEG_DEV_ROOT}/bin/*dll)
+file(COPY ${ffmpeg_shared_libries} DESTINATION ${CMAKE_RUNTIME_OUTPUT_DIRECTORY})
+
+# copy test file
+file(COPY ${CMAKE_CURRENT_SOURCE_DIR}/small_bunny_1080p_60fps.mp4 DESTINATION ${CMAKE_RUNTIME_OUTPUT_DIRECTORY})
+
+
+# add library
+set(debug_src ${CMAKE_CURRENT_SOURCE_DIR}/video_debugging.c)
+add_library(video_debug ${debug_src})
+link_libraries(video_debug)
+
+# add project/executables
+file(GLOB srcs *.c)
+list(REMOVE_ITEM srcs ${debug_src})
+foreach(src  ${srcs})
+    get_filename_component(TARGET ${src} NAME)
+    add_executable(${TARGET} ${src})
+    message(STATUS "${TARGET} added")
+endforeach()
+
+