Fix MP4 Video for Final Cut Pro

Sometimes mp4 video might not be compatible with Final Cut Pro, that's because mp4 is just a container format, it's just the codec used inside might not be compatible.

Let's simply convert videos to a compatible format like x264 with FFmpeg:

# Convert video keep audio
ffmpeg -i input.mp4 -c:v libx264 -b:v 6000k -c:a copy output.mp4
# Convert video and audio
ffmpeg -i input.mp4 -c:v libx264 -b:v 6000k -c:a libfdk_aac output.mp4

• -i: input file
• -c:v libx264: Use x264 codec for video
• -b:v 6000k: Set video bitrate to 6000k
• -c:a copy: Copy audio codec
• -c:a libfdk_aac: Use aac codec for audio
• output.mp4: output file

And also we can do it in batch:

for i in *.mp4; do
  ffmpeg -i "$i" -c:v libx264 -b:v 6000k -c:a copy "${i%.mp4}.x264.mp4" -y;
   done