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Commit Graph

2 Commits

Author SHA1 Message Date
Timo Rothenpieler
cb8ad005bb avutil/half2float: adjust conversion of NaN
IEEE-754 differentiates two different kind of NaNs.
Quiet and Signaling ones. They are differentiated by the MSB of the
mantissa.

For whatever reason, actual hardware conversion of half to single always
sets the signaling bit to 1 if the mantissa is != 0, and to 0 if it's 0.
So our code has to follow suite or fate-testing hardware float16 will be
impossible.
2022-08-19 22:09:36 +02:00
Mark Reid
8d19b3c4a5 avcodec/exr: preserve half-float NaN bits and add fate test
Handles NaNs more like the official implementation handles them, preserving
the original bits.
2020-12-09 12:31:09 +01:00