[FFmpeg-user] Is there an equivalent of Drobox Lepton but for h.264 videos?

[Stéphane Archer]

Is there an equivalent of Drobox Lepton but for h.264 videos?
Lepton is a lossless compression algorithm to compress jpeg at around 20%
there initial file size without any data loss. This is ideal to
achieve jpeg.
What about h.264 videos?

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Best Regards,

Stephane Archer