[FFmpeg-devel] A change in r_frame_rate values after upgrade to FFmpeg 6.1

[Anton Khirnov]

Quoting Antoni Bizoń (2024-09-23 10:09:51)
> I understand that the r_frame_rate is the lowest framerate with which
> all timestamps can be represented accurately. And I know it is just a
> guess. But why did the logic behind the calculation change?

Because you're most likely using a codec like H.264 or MPEG-2 that
allows individually coded fields. In that case the timebase must be
accurate enough to represent the field rate (i.e. double the frame
rate), but the code doing this was previously unreliable, so you'd
sometimes get r_frame_rate equal to the frame rate rather than field
rate. That is not the case anymore.

-- 
Anton Khirnov