I'm converting a couple of videos that I have using the following command:
ffmpeg -i input.mp4 -c:v hevc_amf -c:a copy input_h265.mp4
It works, but on some videos I get this warning message:
More than 1000 frames duplicated 4608kB time=00:00:19.07 bitrate=1979.3kbits/s dup=914 drop=0 speed=3.68x More than 10000 frames duplicated 53760kB time=00:03:28.34 bitrate=2113.8kbits/s dup=9934 drop=0 speed=3.44x More than 100000 frames duplicated 560128kB time=00:35:52.64 bitrate=2131.6kbits/s dup=99919 drop=0 speed=3.69x
Does that mean that the input video already had those duplicate frames, or it is a problem that the converted one will have? Is it an issue at all? If so, how can I fix or prevent it from happening?