mån 2024-02-19 klockan 15:14 +0100 skrev Andreas Rheinhardt: > Tomas Härdin: > > lör 2024-02-17 klockan 21:05 +0100 skrev Andreas Rheinhardt: > > > The call to ff_exp2fi() here always uses arguments in the normal > > > range, so that the branches in ff_exp2fi() are unnecessary. > > > This is so because JPEG2000 itself only supports up to > > > 128 bits per component per pixel (we only support far less); > > > furthermore, expn is always 0..31 for the decoder and also > > > sane for the encoder, so that the difference between these > > > two values is always in the normal range of -126..128. > > > > Any measurable improvement in decode speed? > > > > I don't think it is measurable; my aim was to move ff_exp2fi() out of > internal.h (where it does not belong).
Ah. Well, fewer branches is almost always good so, looks good to me. Maybe pal has an opinion? /Tomas _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
