[FFmpeg-devel] Task for beginner : lossless JPEG transformations

Nicolas George george at nsup.org
Wed Jul 21 17:03:15 EEST 2021


Hi.

In case somebody is looking for a task to begin working on FFmpeg, I
have the following suggestion.

The program jpegtran, from libjpeg / libjpeg-turbo, can do lossless or
almost-lossless crop and rotate on JPEG, and even overlay with the most
recent versions.

I think this would be welcome in FFmpeg as bitstream filters: porting or
re-implementing (check the license!) jpegtran's code would be an useful
task.

Unfortunately, I know nothing about JPEG, so I cannot easily help /
mentor. I am just suggesting.

Regards,

-- 
  Nicolas George
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