On Sat, Sep 30, 2023 at 11:00 AM David Bernat <[email protected]> wrote:
> Been very seriously considering design scope. Dropbox is a no-go. Want to > connect offline to describe your use case? > > > On Sat, Sep 30, 2023 at 10:10 AM Stéphane Archer <[email protected] > > > wrote: > > > On Sat, Sep 30, 2023 at 10:00 AM Andrew Randrianasulu < > > [email protected]> wrote: > > > > > сб, 30 сент. 2023 г., 16:58 Stéphane Archer <[email protected] > >: > > > > > > > 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? > > > > > > > > > > > > > well, h264 videos already heavy and usually lossy compressed, any > further > > > compression will be not lossless > > > > > > > lepton works on jpeg that are lossy, yet they manage to have a smaller > file > > size adding a lossless compression on top of it. > > I'm not sure why it won't be possible to do the same on a h.264 file and > > get a smaller file size. I know h.265 and av1 have lossless video > > compression. And I recently heard about FFV1. > > > Dear David, I don't understand what you mean by "design scope". I would like to try a different analogy If the data was text and I wanted lossy compression then I would replace all the vowels with an "a" and then compress the resulting data with gzip. now if I switch gzip by using lzma instead, I would end up with a file smaller or the same size as the gzip version. Why does lossless h.265 or lossless av1 give me a larger file size than the original h.264? Why is this different for video? I hope my text compression analogy was clear. -- Best Regards, Stephane Archer _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
