WebJun 14, 2024 · NV12 will be converted to yuvj420p without yuv420p in the middle. The FFmpeg command to perform it for a h264 stream looks as follow: ffmpeg -hwaccel … WebJan 28, 2024 · ffmpeg Command. Command about FFmpeg encoding; ffmpeg -ss 1800 -vsync 0 -hwaccel cuvid -hwaccel_device 0 \ -c:v h264_cuvid -i /data/input.mp4 -t 10 \ -filter_complex "\ [0:v]hwdownload,format=nv12,format=yuv420p,\ scale=iw*2:ih*2" -gpu 0 -c:v hevc_nvenc -pix_fmt yuv444p16le -preset slow -rc cbr_hq -b:v 5000k -maxrate 7000k …
This gist shows you how to encode specifically to HEVC …
WebDec 22, 2024 · If ffmpeg was compiled with support for libnpp, it can be used to insert a GPU based scaler into the chain: ffmpeg -hwaccel_device 0 -hwaccel cuda -i input -vf scale_npp=-1:720 -c:v h264_nvenc -preset slow output.mkv. The -hwaccel_device option can be used to specify the GPU to be used by the hwaccel in ffmpeg. The libva driver needs to be attached to a DRM device to work. This can be connected either directly or via a running X server. When working standlone, it is generally best to use … See more All of these examples assume the input and output files will contain one video stream (audio will need to be considered separately). It is … See more The hardware codecs used by VAAPI are not able to access frame data in arbitrary memory. Therefore, all frame data needs to be uploaded to … See more The encoders only accept input as VAAPI surfaces. If the input is in normal memory, it will need to be uploaded before giving the frames to the … See more how to heal strained bicep
vaapi - ffmpeg fbdev and pix_fmt cpu usage - Stack Overflow
WebNov 3, 2024 · Right-click the Windows/Start button and select File Explorer. Click the Downloads folder in the left panel (you may have to click This PC first to find it). Right … Web[FFmpeg-devel,v5] Improved the performance of 1 decode + N filter graphs and adaptive bitrate. Message ID [email protected] WebSep 24, 2024 · Output the images in a lossless format such as PNG: mkdir stills ffmpeg -i my-film.mp4 -vsync 0 -f image2 stills/my-film-%06d.png. Then use another program (where you can more precisely specify quality, subsampling and DCT method – e.g. GIMP) to convert the PNGs you want to JPEG. It is possible to obtain slightly sharper images in … how to heal strained achilles