On Wed, 16 Oct 2019 at 01:14, Michele Salerno <[email protected]> wrote: > > Il giorno mar 15 ott 2019 alle ore 23:33 Dennis Mungai > <[email protected]> ha scritto: > > > > On Tue, 15 Oct 2019 at 23:47, Carl Eugen Hoyos <[email protected]> wrote: > > > > > > Am Di., 15. Okt. 2019 um 22:25 Uhr schrieb Michele Salerno > > > <[email protected]>: > > > > > > > ffmpeg version 4.1.4 Copyright (c) 2000-2019 the FFmpeg developers > > > > > > This looks old. > > > > > > Carl Eugen > > > > And secondly, if you want the scale_npp filter, you must compile > > FFmpeg from source with --enable-cuda-nvcc option passed to the > > ./configure script. Note that the CUDA SDK must be installed on the > > system you're building and running FFmpeg on. > > > > Since you have nvenc present and enabled, you should be able to use > > the scale_cuda filter, yadif_cuda, thumbnail_cuda and hwupload_cuda > > filters respectively as they're dependent on the ffnvcodec headers > > package needed to enable the NVENC feature set. > > > > For usage, see: > > > > ffmpeg -h filter=scale_cuda > > > Unknown filter 'scale_cuda'. > > > So with your command, substitute scale_npp with scale_cuda as shown: > > > > #!/bin/bash > > for i in *.mp4; do > > ffmpeg -threads 8 -hwaccel nvdec -i "$i" -vf scale_cuda=720:-1 > > -c:v h264_nvenc -preset slow "convert/$i"; > > done > > > > NVDEC should be available on your platform as ffmpeg was configured > > with the aforementioned ffnvcodec header package. > > Note the thread count limit I've added to the command above, as nvdec > > will warn you on high thread counts exceeding ~16. > > > thanks.
Build the latest ffmpeg git tip and retest. _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
