#1854: libswscale has unreasonable alignment constraints
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Reporter: gjdfgh | Owner:
Type: enhancement | Status: new
Priority: wish | Component: swscale
Version: git-master | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by michael):
swscale does not revert to "the slow path" on misaligned data, it should
just be slower because some operations are slower on misaligned data and
some codepathes are not possible on misaligned data because the CPU
instructions require aligned data.
Please provide some specific examples where there are problems, like
unreasonable slowdown, crashes (which would be a bug) or other. This
feature request as such is hard to implement as its to vague.
The suggestion about mixing unaligned and aligned is generally not
possible as source & destination can have different alignmnet and even if
they match the data tables then would likely not.
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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1854#comment:3>
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