[FFmpeg-devel] [PATCH] eval: add bitor and bitand functions
Stefano Sabatini
stefasab at gmail.com
Thu Mar 14 21:34:40 CET 2013
On date Wednesday 2013-03-13 22:51:02 +0100, Michael Niedermayer encoded:
> On Wed, Mar 13, 2013 at 10:36:45PM +0100, Stefano Sabatini wrote:
> > TODO: bump micro
> > ---
> > doc/eval.texi | 8 ++++++++
> > libavutil/eval.c | 9 ++++++++-
> > tests/ref/fate/eval | 9 +++++++++
> > 3 files changed, 25 insertions(+), 1 deletion(-)
> >
> > diff --git a/doc/eval.texi b/doc/eval.texi
> > index 3b7964c..1dca2da 100644
> > --- a/doc/eval.texi
> > +++ b/doc/eval.texi
> > @@ -32,6 +32,14 @@ Compute arcsine of @var{x}.
> > @item atan(x)
> > Compute arctangent of @var{x}.
> >
> > + at item bitand(x, y)
> > + at item bitor(x, y)
> > +Compute bitwise and/or operation on @var{x} and @var{y}.
> > +
> > + at var{x} and @var{y} are converted to integers before executing the
> > +operation. Operation result is undefined if the integer representation
> > +of @var{x} or @var{y} takes more than 64 bits.
>
> double precission floats do not have 64 bit mantissas so this will
> fail with many 64bit values
Updated with this commented removed. I assume the reader realizes
that the conversion is potentially lossy.
--
FFmpeg = Funny Fast Martial Pitiless Ermetic God
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0002-lavu-eval-add-bitor-and-bitand-functions.patch
Type: text/x-diff
Size: 3123 bytes
Desc: not available
URL: <http://ffmpeg.org/pipermail/ffmpeg-devel/attachments/20130314/63964633/attachment.bin>
More information about the ffmpeg-devel
mailing list