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fdk_aacのビルド方法(VisualStudio2015)

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どこ見ても書いてなかったので備忘録として。
Windows10 64bit VisualStudio2015環境想定です。

  1. https://github.com/mstorsjo/fdk-aac からfdk_aacのソースコードをクローン
  2. "Windowsメニュー->Visual Studio2015-> VS2015 x64 Native Tools コマンド プロンプト"を開く
  3. 下記コマンドを実行。
$ cd 【fdk_aacディレクトリ】
$ nmake /f Makefile.vc

これでfdk_aacディレクトリ化にaac_enc.exeという実行ファイルが作成されるはずです。
実行してみるとwavファイルをaacファイルに変換できました。
使用した感想ですが、案外オプションが少なくて驚きます。

C:\WINDOWS\system32\aac-enc.exe [-r bitrate] [-t aot] [-a afterburner] [-s sbr] [-v vbr] in.wav out.aac
Supported AOTs:
        2       AAC-LC
        5       HE-AAC
        29      HE-AAC v2
        23      AAC-LD
        39      AAC-ELD

絶対に他のオプションもあるんだろうなぁ。どこかのドキュメント漁ってみますかね。

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