Tuesday 22 August 2017

Variable bit rates with "-vb" and "minrate"/"maxrate" settings in FFmpeg

For rendering, the time it takes is very different.



  • -b 3500K -minrate 0K -maxrate 8000K takes 1hr 17min

  • vb=3000k takes 2.5 hours


What is vb 3000k and how is it different from -b 3500K -minrate 0K -maxrate 8000K? Are these variable bit rate settings?


If I changed to -b 3500K -minrate 3500K -maxrate 3500K, is that constant bit rate?

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