android - Compress Video with FFmpeg

Question

I want to compress a 1 minute video in less than a minute on Android using ffmpeg in the best possible quality. But when the time is short, the quality is low and when the quality is good, it takes a long time to compress. Do you know the right command?

Answer 1

For "best quality" at fastest encoding speed:

ffmpeg -i input.mp4 -c:v libx264 -crf 18 -preset veryfast output.mp4

• This assumes you want H.264 + AAC in MP4.
• If input audio is AAC add -c:a copy.
• If -preset veryfast is too slow use -preset ultrafast.
• See FFmpeg Wiki: H.264 for more info and examples.