[FFmpeg-trac] #3657(swscale:new): 32 Bit per Channel sws conversion
FFmpeg
trac at avcodec.org
Sat May 24 16:58:22 CEST 2014
#3657: 32 Bit per Channel sws conversion
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Reporter: sun | Owner:
Type: enhancement | Status: new
Priority: wish | Component: swscale
Version: unspecified | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by Cigaes):
When people request float values for pixels (or samples), I always wonder
if they really need the features of floats, i.e. more absolute accuracy
for numbers near 0. It may make sense for samples, to keep the same
relative accuracy regardless of the overall volume. For pixels, maybe
issues with gamma will need more accuracy near 0, but I am not really
convinced.
Apart from that, I wonder if people realize that 32-bits fixed point is
more accurate than floats on 99.21875% of the range.
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Ticket URL: <https://trac.ffmpeg.org/ticket/3657#comment:5>
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