[FFmpeg-user] How do I decode once and pass frames to multiple destinations

[Carl Zwanzig]

On 12/3/2020 2:57 AM, Simon Brown wrote:
> I can do all 3 of these things individually, and therefore I can do all 3
> of these things by running 3 instances of ffmpeg, but at that point my
> system is decoding the stream 3 times and I really don't want to spend the
> CPU power doing that.

Start with https://trac.ffmpeg.org/wiki/Creating%20multiple%20outputs

If there are difficulties, remember to post the complete command you used 
and it's output (and not to top-post the reply).

z!