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Joined 1 year ago
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Cake day: June 15th, 2023

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  • In kdenlive, the following settings work well for me (you can transfer the options to ffmpeg cli as well if you prefer that):

    f=matroska movflags=+faststart vcodec=libx264 tune=stillimage progressive=1 g=1000 bf=2 crf=%quality acodec=flac ar=48000

    For reference, I get a 3.7 GB video with a duration of over 5 h @4k resolution. The audio itself is already 3.7 GB and it’s just a still image. For CRF, set something around 23, that should do.











  • I would imagine they store the highest available quality only by default and do on the fly transcoding until a certain threshold of views per time is reached. At this point they would then store the transcoded versions as well.

    For videos with a lot of views it only makes sense to store the transcoded version as, like you say, storage is cheap. But fact is that the vast majority of uploaded videos get <1k views and for those it probably would make more sense to transcode them otf when needed.