[FFmpeg-user] Windows 10, ffmpeg concat/demux is slow... part 2

Gyan Doshi gyandoshi at gmail.com
Sun Nov 12 08:37:32 EET 2017

On 11/12/2017 11:11 AM, Kevin Duffey wrote:

> If other posts I found indicated that this was a normal speed I might accept it... however, I see many posts indicating they get 100, 200 or more fps when concat/demux is being used where I am getting about 5fps to 10fps.

Rather than fps, check the bitrate obtained i.e. bytes written out per 
second, and compare that with a OS copy of the same input to the same 


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