[FFmpeg-devel] [PATCH] avfilter/vf_overlay_cuda: support expression of x y position

[Steven Liu]

Timo Rothenpieler <timo at rothenpieler.org> 于2021年6月8日周二 下午6:23写道：
>
> It'd probably make sense to also copy over the option for evaluating the
> expression per-frame or on init.
> Given that this is usually going to run much faster than the software
> overlay filter, the slight overhead from the expression could be much
> more severe.

Thanks for your comments Timo,

I update the patch version 2 right now.
https://patchwork.ffmpeg.org/project/ffmpeg/patch/20210608104503.25677-1-liuqi05@kuaishou.com/

>
> Looks good otherwise, and for what I care, the per-frame/init option can
> also be added in a later patch.
>
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Thanks
Steven