I tried some other nvidia profiles (properties=x264-medium f=mp4 vcodec=nvenc_h264 acodec=aac g=120 crf=%quality ab=%audiobitrate+'k' preset=fast AND f=mp4 movflags=+faststart vcodec=h264_nvenc progressive=1 g=15 bf=2 crf=%quality acodec=aac ab=%audiobitrate+'k'), same problem. You cannot reply to topics in this forum.

Kubuntu 18.04.4 (Linux 5.3.0-28-generic kernel) h264nvenc adjustment - Edit nvenc settings for rec and stream Options Previous Topic Next Topic Users browsing this topic 2 Pages 1 2 > vMix Forums » General » Feature Requests » h264nvenc adjustment Forum Jump You cannot post new topics in this forum. This will determine the file size and also how quality is distributed. My other rendering settings: video 15, audio 192, encoder speed max (to the right), 8 Threads (they are the same with mp4 and nvidia). Rate control decides how many bits will be used for each frame.

Rendered with the normal mp4 profile my test video was 700MB big, with the nvidia profile only 35MB. With the nvidia rendering profile (properties=x264-medium f=mp4 vcodec=h264_nvenc acodec=aac g=120 crf=%quality ab=%audiobitrate+'k') the rendered video is very bad. With the standard mp4 rendering profile (properties=x264-medium f=mp4 vcodec=libx264 acodec=aac g=120 crf=%quality ab=%audiobitrate+'k') the rendered video is fine. Encoding high quality h264 video via GPU: ffmpeg.exe -hwaccel cuvid -i inmovie.mov -c:v h264nvenc -pixfmt yuv420p -preset slow -rc vbrhq -b:v. I have an early-2010s xeon/quadro workstation which will become the recode box once i find some desk space for it, so I'll update some day how that compares if anyone cares.I tried to render a video with my Nvidia gpu.

I know I could probably get slightly better image and a decently smaller file size if I used CPU encoding, but with ~60 episodes to recode and the CPU moving between 1fps & 10fps.ain't nobody got time fo' that. Transcoding some silly-sized 1080p h264 files without touching audio streams or subtitles, framerates and resolutions all same as source.ĬQ set to 27, I've been getting avg 122fps transcode and a ~1.5gb file of good quality for a 47min show, including the untouched DTS audio track, and from a source of ~3.5-5gb.Ĭomparing the original file to the recoded ones, I can see some artifacts in dark areas if i'm looking for them, but nothing that will distract when i'm actually watching the show. Popping in here to say i've got a 1660ti and an i7 from 2015 or something.įor shows where the enjoyment is less tied to the absolute visual finesse, i've been liking a bit of NVENC goodness.

H264_nvenc quality