wy353208214 / CompileAVLibs

Introduce how to compile the essential audio, video third libraries, here including lame, fad-aac and x264.

Compile Audio/Video Libraries on MacOS

Introduce how to compile the essential audio, video third libraries, here including lame, fad-aac and x264.

lame

Today, LAME is considered the best MP3 encoder at mid-high bitrates and at VBR, mostly thanks to the dedicated work of its developers and the open source licensing model that allowed the project to tap into engineering resources from all around the world. Both quality and speed improvements are still happening, probably making LAME the only MP3 encoder still being actively developed.

Build lame

1. Enter lame-3.100 folder, cd lame-3.100.
2. Change shell rights, sudo chmod 777 build-lame.sh.
3. Run build shell, sudo sh ./build-lame.sh
4. You can find the lib under the directory fat-lame.

You can also refer lame shell usage.

fdk-aac

The Fraunhofer FDK AAC is a high-quality open-source AAC encoder library developed by Fraunhofer IIS. It was officially released for Android, but has been ported to other platforms. The licensed Fraunhofer AAC codec included in Winamp (often called FhG AAC) is not the same as the FDK AAC codec.

Build fdk-aac

1. Enter fdk-aac-2.0.0 folder, cd fdk-aac-2.0.0.
2. Change shell rights, sudo chmod 777 build-fdk-aac.sh.
3. Run build shell, ./build-fdk-aac.sh
4. You can find the lib under the directory fat-fdk-aac.

You can also refer fdk-aac shell usage.

x264

x264 is a free and open-source software library and a command-line utility developed by VideoLAN for encoding video streams into the H.264/MPEG-4 AVC format. It is released under the terms of the GNU General Public License.

Build x264

1. Enter x264-20190809-2245 folder, cd x264-20190809-2245.
2. Change shell rights, sudo chmod 777 build-x264.sh.
3. Run build shell, ./build-x264.sh
4. You can find the lib under the directory fat-x264.

You can also refer x264 shell usage.

ffmpeg

A complete, cross-platform solution to record, convert and stream audio and video.

Build ffmpeg

1. Enter ffmpeg-4.2 folder, cd ffmpeg-4.2.
2. Change shell rights, sudo chmod 777 build-ffmpeg.sh.
3. If you want ffmpeg use the external x264, lame, fdk-aac libs, please copy the fat-x264, fat-lame, fat-fdk-aac folders which are generated from previous steps to external_libs folder. or else you must comment X264, LAME, FDK_AAC in build-ffmpeg.sh.
4. Run build shell, ./build-ffmpeg.sh
5. Finally, you'll get ffmpeg libs under the folder fat-ffmpeg.

You can also refer ffmpeg shell usage.

Possible Issues

• No working C compiler found.
  Maybe it's a problem of Xcode, so run sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer/

• Found no assembler, Minimum version is nasm-x.x.x or yasm-x.x.x.
  It says your assembler version is too low, just update:
  brew install nasm or brew install yasm.

• Compile for i386 platform, encounters No working C compiler found.
  You can resolve it by any one of below two ways:

  1. Remove i386 from ARCHS="x86_64 i386 arm64e arm64 armv7s" in build shell .
  2. Run sudo sh ./build-xxx.sh arm64e arm64 x86_64 armv7s.

Reference

• https://www.jianshu.com/p/b7881a4467db