macOS build failed, due to didn't link to ffmpeg installed by homebrew

[tommyZZM]

os: macOS 10.15.3

error message

CXX(target) Release/obj.target/beamcoder/src/beamcoder.o
In file included from ../src/beamcoder.cc:23:
../src/beamcoder_util.h:33:12: fatal error: 'libavutil/error.h' file not found
  #include <libavutil/error.h>
           ^~~~~~~~~~~~~~~~~~~
1 error generated.
make: *** [Release/obj.target/beamcoder/src/beamcoder.o] Error 1
gyp ERR! build error 

or

ld: library not found for -lavcodec
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [Release/beamcoder.node] Error 1
gyp ERR! build error 

after adding include_dirs and library_dirs for 'OS=="mac" to the binding.gyp.

I can build succcess.

{
  "targets": [{
    "target_name" : "beamcoder",
    "sources" : [ "src/beamcoder.cc", "src/beamcoder_util.cc",
                  "src/governor.cc", "src/demux.cc",
                  "src/decode.cc", "src/filter.cc",
                  "src/encode.cc", "src/mux.cc",
                  "src/packet.cc", "src/frame.cc",
                  "src/codec_par.cc", "src/format.cc",
                  "src/codec.cc" ],
    "conditions": [
+      ['OS=="mac"', {
+        "include_dirs" : [
+          "/usr/local/Cellar/ffmpeg/4.2.2/include"
+        ],
+        "library_dirs": [
+          "/usr/local/Cellar/ffmpeg/4.2.2/lib",
+        ]
+      }],
      ['OS!="win"', {
        "defines": [
          "__STDC_CONSTANT_MACROS"
        ],
        "cflags_cc!": [
          "-fno-rtti",
          "-fno-exceptions"
        ],
        "cflags_cc": [
          "-std=c++11",
          "-fexceptions"
        ],
        "link_settings": {
          "libraries": [
            "-lavcodec",
            "-lavdevice",
            "-lavfilter",
            "-lavformat",
            "-lavutil",
            "-lpostproc",
            "-lswresample",
            "-lswscale"
          ]
        }
      }],
      ['OS=="win"', {
        "configurations": {
          "Release": {
            "msvs_settings": {
              "VCCLCompilerTool": {
                "RuntimeTypeInfo": "true"
              }
            }
          }
        },
        "include_dirs" : [
          "ffmpeg/ffmpeg-4.2.1-win64-dev/include"
        ],
        "libraries": [
          "-l../ffmpeg/ffmpeg-4.2.1-win64-dev/lib/avcodec",
          "-l../ffmpeg/ffmpeg-4.2.1-win64-dev/lib/avdevice",
          "-l../ffmpeg/ffmpeg-4.2.1-win64-dev/lib/avfilter",
          "-l../ffmpeg/ffmpeg-4.2.1-win64-dev/lib/avformat",
          "-l../ffmpeg/ffmpeg-4.2.1-win64-dev/lib/avutil",
          "-l../ffmpeg/ffmpeg-4.2.1-win64-dev/lib/postproc",
          "-l../ffmpeg/ffmpeg-4.2.1-win64-dev/lib/swresample",
          "-l../ffmpeg/ffmpeg-4.2.1-win64-dev/lib/swscale"
        ],
        "copies": [
            {
              "destination": "build/Release/",
              "files": [
                "ffmpeg/ffmpeg-4.2.1-win64-shared/bin/avcodec-58.dll",
                "ffmpeg/ffmpeg-4.2.1-win64-shared/bin/avdevice-58.dll",
                "ffmpeg/ffmpeg-4.2.1-win64-shared/bin/avfilter-7.dll",
                "ffmpeg/ffmpeg-4.2.1-win64-shared/bin/avformat-58.dll",
                "ffmpeg/ffmpeg-4.2.1-win64-shared/bin/avutil-56.dll",
                "ffmpeg/ffmpeg-4.2.1-win64-shared/bin/postproc-55.dll",
                "ffmpeg/ffmpeg-4.2.1-win64-shared/bin/swresample-3.dll",
                "ffmpeg/ffmpeg-4.2.1-win64-shared/bin/swscale-5.dll"
              ]
            }
          ]
    }]
  ]
}]
}

Same issue may also happen in Linux. #21 Add include dirs on linux

[WingDust]

windows rebuild with electron has

  ⠼ Building module: beamcoder, Completed: 0
h:\electronproject\electron_vue\electron-vue-vite\node_modules\beamcoder\src\beamcoder_util.h(33): fatal error C1083: Cannot open include file: 'libavutil/error.h': 

No such file or directory [H:\ElectronProject\Electron_Vue\electron-vue-vite\node_modules\beamcoder\build\beamcoder.vcxproj]