[FFmpeg-devel] [PATCH 2/2] avcodec/jpeg2000dec: jpeg2000 has its own lowres option

Tomas Härdin git at haerdin.se
Sat Jun 24 13:53:42 EEST 2023

lör 2023-06-10 klockan 20:31 +0200 skrev Michael Niedermayer:
> jpeg2000 overrides the global lowres variable with a lowres field
> called reduction_factor
> ffmpeg -lowres X causes the reduction_factor to be set
> ffplay -lowres X causes both lowres and the reduction_factor to be
> set
> ossfuss sets only lowres

Why does jpeg2000dec have its own -lowres? Does lavc reset it somewhere
to where the decoder can't make use of the avctx-level setting?


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