[FFmpeg-user] Trouble with ffmpeg ... -f tee and specific encodings per output

Carl Zwanzig cpz at tuunq.com
Sat Feb 24 03:50:27 EET 2024

On 2/22/2024 12:11 AM, Nicolas George wrote:
> Then the tee muxer is not suited to your needs.

To expand on that
21.53- "[Tee] is different from specifying several outputs to the ffmpeg 
command-line tool. With the tee muxer, the audio and video data will be 
encoded only once."

You need to use multiple output URLs and format options. Make a critical 
read of the first few sections of the doc 
(https://ffmpeg.org/ffmpeg-all.html) and also see 


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