![]() x264 and x265 use a maximum GOP value of 250 frames, so that's probably a good value to set.Īnd as stated by others, cpu-used values larger than 6 are only available for -usage realtime, and are mapped to 6 in the regular encoding mode.įilm grain synthesis and 10-bit are probably not worth it since they slow down encoding significantly. But since this value is set in frames and not seconds, you'd need to have a script of some kind that checks the fps of the video and sets the value based on that, which would be something of a PITA. The usual recommendation is to use a maximum GOP of up to 10 seconds. This is apparently by design and the bug report asking for a better default was closed as wontfix. Libaom by default uses a maximum GOP size of 9999 frames (which doesn't just make seeking more difficult, it can crash some players when attempting to seek) and you'll need to set a more sane value by yourself. The longer the GOP, the better the compression. How does the GOP value affect quality and compression? Any ideas whether my Ryzen 5 3600X would be able to play this in 'software'? (Don't worry - my GPU has AV1 hardware decoding support) I'm planning to convert some 6K 60fps videos to AV1 too. How does the GOP value affect quality and compression? I'm not really concerned about slow seek times and the files are not for streaming. but my first test was a low quality webvideo anyway. What is a CRF value recommendation to have visually lossless on a high quality source? I used 30 as start because it was in the ffmpeg encoding guide. Am I missing something?Ģ.8 fps with -cpu-used 5 on a 6 Minute video. the Task Manager shows no core used at 100%. ffmpeg -hwaccel auto -i %1 -c:a libopus -b:a 96k -c:v libaom-av1 -cpu-used 5 -crf 30 -b:v 0 -row-mt 1 -usage good -map_metadata -1 "%~n1 AV1 crf30.mkv" ![]() I cannot tell whether the AV1 Encoder uses all Ryzen 5 3600X-CPU-cores (6 Core 12 Threads) correctly while converting a 1080p MP4 using. I'm running out of storage space slowly and would like to use AV1 to convert a bunch of video with old encoding. ![]()
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