[FFmpeg-devel] [PATCH 0/2] initial support for hypot

Ganesh Ajjanagadde gajjanagadde at gmail.com
Sat Nov 14 18:11:18 CET 2015

The hypot function is very useful since the naive sqrt(x*x + y*y) has overflow
and hence mathematical accuracy issues, see e.g

1/2 adds configure+libm support. The fallback is currently a naive one,
and may be improved in a separate patch.

2/2 gives a simple illustration in avutil/eval. It may be useful elsewhere as well.

Ganesh Ajjanagadde (2):
  configure+libm.h: add hypot emulation
  avutil/eval: change sqrt to hypot

 configure        | 2 ++
 libavutil/eval.c | 2 +-
 libavutil/libm.h | 8 ++++++++
 3 files changed, 11 insertions(+), 1 deletion(-)


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