[FFmpeg-devel] [PATCH] avcodec/nvenc: support dynamic resolution change

[Timo Rothenpieler]

On 07.08.2020 10:18, leozhang wrote:
> Allow dynamic resolution change, this is useful for real time video communication application.
> 
> Use below commands to test it,
> ffmpeg -i reinit-large_420_8-to-small_420_8.h264 -noautoscale -c:v hevc_nvenc out.265 -loglevel verbose -y
> ffmpeg -i reinit-large_420_8-to-small_420_8.h264 -noautoscale -c:v h264_nvenc out.264 -loglevel verbose -y
> 

Are there any negative side-effects of this?
Like, what happens if the user is transcoding a live tv recording that 
switches resolutions? Will nvenc and the muxer after it handle it 
gracefully? How are they handling it right now?