[FFmpeg-cvslog] avcodec/j2kenc: simplify pixel format setup

ffmpeg | branch: release/4.4 | Michael Niedermayer | Thu Mar 30 18:40:31 2023 +0200| [13a440b33372982234ea8469371d7e8e1b5076b5] | committer: Michael Niedermayer avcodec/j2kenc: simplify pixel format setup Signed-off-by: Michael Niedermayer (cherry picked from commit 644d15716d5cfb28e4ea0c0ada

[FFmpeg-cvslog] avcodec/j2kenc: simplify pixel format setup

ffmpeg | branch: release/5.1 | Michael Niedermayer | Thu Mar 30 18:40:31 2023 +0200| [cf6ae79a71e302b25e6cd32314d46a5740340e8a] | committer: Michael Niedermayer avcodec/j2kenc: simplify pixel format setup Signed-off-by: Michael Niedermayer (cherry picked from commit 644d15716d5cfb28e4ea0c0ada