<WRAP info>**FFmpeg** is an open source command-line tool for manipulating audio and video files: converting formats, compressing, trimming, assembling, adding subtitles or streaming.
</WRAP>

===== Converting social networks =====

<code bash>
ffmpeg -i INPUT.ext \
  -c:v libx264 \
  -profile:v main \
  -level 4.0 \
  -pix_fmt yuv420p \
  -movflags +faststart \
  -c:a aac \
  -b:a 128k \
  OUTPUT.mp4
</code>

===== Sources =====

  * [[en:charteia]]
    * openai
      * Reformulation of sentences
      * Correction of spelling mistakes