[FFmpeg-user] GPU/CPU encoding

[andrei ka]

hmm, i think one could extract frames with ffmpeg and pipe 'em into some
gpu encoging software. or one can invent some sort of chain processing,
like encoding video in gpu at 1 fps and then pipe into ffmpeg to split
video into frames in cpu ?

On Thu, Apr 25, 2019 at 3:38 PM Moritz Barsnick <barsnick at gmx.net> wrote:

> [Fixed the e-mail subject for you.]
>
> On Thu, Apr 25, 2019 at 15:29:17 +0300, lastkill at tut.by wrote:
> > hi! i need to know if ffmpeg.exe uses Gpu or cpu when we use it to
> convert video to number of images?
>
> ffmpeg can use either CPU or GPU for decoding video.
> ffmpeg can use either CPU or GPU for filtering video.
> ffmpeg will only use CPU for encoding the resulting images (for most
> image formats).
>
> It all depends on your hardware of course, whether your ffmpeg is built
> with the support for it, and also on the codec used (and the filters
> applied).
>
> Please also see
> https://trac.ffmpeg.org/wiki/HWAccelIntro
>
> Cheers,
> Moritz
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