![]() ![]() If you want full gpu cuda decode and scale and encod :įfmpeg -y -hwaccel cuda -hwaccel_output_format cuda -hwaccel_device cuda -i input.mkv -filter_complex scale_cuda=1280:-2,hwdownload,format=p010le,format=nv12,hwupload -sn -c:a copy -c:v h264_nvenc -preset p7 -tune 1 -multipass fullres -rc-lookahead 32 -rc vbr -cq 30 -zerolatency 1 output.mkvįfmpeg -y -hwaccel cuda -hwaccel_output_format cuda -hwaccel_device cuda -i input.mkv -filter_complex “scale_cuda=1280:-2,hwdownload,format=nv12” -sn -c:a copy -c:v h264_nvenc -preset p7 -tune 1 -multipass fullres -rc-lookahead 32 -rc vbr -cq 30 -zerolatency 1 output. You can do cpu & gpu, decode and scale and encod without -vf, like this :įfmpeg -i input.mkv -s 444x250 -c:a copy -c:v h264_nvenc -pix_fmt yuv420p -preset p7 -tune ull -multipass fullres -rc_lookahead 32 -rc vbr -cq 29 -zerolatency 1 -gpu 0 output.mkvįfmpeg -i input.mkv -s 444x250 -c:a copy -c:v h264_nvenc -preset p7 -tune ull -multipass fullres -rc_lookahead 32 -rc vbr -cq 29 -zerolatency 1 -gpu 0 output.mkv tells FFmpeg to encode video to H.264 using libx264 library-profile:v high: sets H.264 profile to High as per Step 2. It’s important if you mix between Quick Sync Video & nvidia.ffmpeg -i input.mp4 -vf scale1280:-1 -c:v libx264 -preset veryslow -crf 24 output.mp4. If you'll get this issue, just use the headers with tag n8.0.14.1 and then compile ffmpeg. Run the following command to compress the input video. Compressing the video with FFmpeg will reduce the file size and save storage space. furthermore stating that H265 HEVC compress the media much more than h264 that is why it takes longer. ffmpeg -i input.mp4 -vf 'setpts0.5PTS' output.mp4. The advantages from H265 come in its filesize averaging just 61,648.88 Kilobytes whilst H264 was 103,183.18 KB.Īverage H265 bitrate was 16,813.71 kb/s whilst H264 was 28,145.15 kb/s. H264 averaged 23.91 encoding fps, whilst H265 averaged an encoding FPS speed of just 5.63. I am encoding video with parameters CRF 23, high profile and changing preset. And I have found some unexpected behaviour. The average of all the H264 encode times in seconds was 144.42 whilst H265 was a much greater 590.65 seconds. ffmpeg with h264 produces smaller file sizes for veryfast preset Ask Question Asked 2 years, 5 months ago Modified 2 years, 5 months ago Viewed 271 times 0 I am experimenting with ffmpeg and x264 codec. H265 or HEVC is considerably slower than H264. ![]() For information on what options these settings toggle, check the output of x264.exe -fullhelp. A system designed to reduce the work needed to generate sane, efficient commandlines that do what you want. If you didn’t already know, you will after reading this. x264.exe -output NUL -fps 25 -input-res 1280x720 D: input.yuv x264 -output /dev/null -fps 30000/1001 -input-res 640x480 /input.yuv Presets. At 4k resolution (3840×2160) 29.97 fps, 30 seconds long, 400Mbps bitrate, 10 bit and a file size of 1.4GB this video file is rich in its data. #Ffmpeg h264 preset upgrade#It’s never been so easy to upgrade your workflow. Thanks to the source media file for the H.265 testing is this file here. The MainConcept FFmpeg plug-in gives you access to Hybrid GPU acceleration, ready-to-use presets, and more. ![]() The Xeon E-2246G is a very recently released CPU (Q2 2019). Total amount of Swap : 1951 MB (0 MB Used) ![]() Total amount of Mem : 32068 MB (365 MB Used) Total size of Disk : 877.5 GB (25.1 GB Used) CPU model : Intel(R) Xeon(R) E-2246G CPU 3.60GHz ago Using -usewallclockastimestamps 1 seems to be the magic trick AMartinelli2 2 mo. Intel Xeon E-2246G CPU with 6 cores, 12 threads at 3.60GHz boosted to 4.80GHz with 32GB of ram and SSD disk running Ubuntu 18.04 64 bit. .ffmpeg.exe -r 15 -i ' -preset ultrafast -vcodec libx264 output.mp4 ElKappador 9 mo. Part 1, 2, 3 and 4 For H.264 can be found at the links. #Ffmpeg h264 preset 1080p#For 1080p 60fps in a high-motion scenario (like an action or FPS game), you would likely need more than 8,000kbps of bitrate at veryfast for it to look smooth during playback. This post is the finale concluding the previous 7 parts. Ill confirm it as of todays day Tom SVN-R30947. They are assuming x264 encoder with the veryfast preset, and low to medium motion in your scene. The posts have been split up with this, the finale putting the fasts and slows presets from both H.264 with H265 HEVC together. This comprehensive FFmpeg encoding comparison includes H.264 and H.265 HEVC from the fastest preset ultrafast through to veryslow with CRF values from 20 to 30. ![]()
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