This uses M_SQRT1_2, M_SQRT2 instead of the actual literals. Fixed point
values remain unchanged.
Patch tested with FATE on x86.
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
The ad-hoc pi constant has a ludicrous number of digits that offer no
value whatsoever. M_PI is more consistent and readable across the
codebase.
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
Similar to testsrc, but using drawutils and therefore
supporting a lot of pixel formats instead of just rgb24.
This allows using it as input for other tests without
requiring a format conversion.
It is also slightly faster than testsrc for some reason.
Calculation of x an y based on width and height did not work when
width == 0 or height == 0. "0" substitutes the input width and
height, but did so too late for x, y expression evaluation.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
this makes draw_bar faster
slightly different result with old version
check result (with ~3 minutes audio file):
old:
real 0m49.611s
user 0m49.260s
sys 0m0.073s
new:
real 0m47.606s
user 0m47.378s
sys 0m0.068s
PSNR between old and new:
yuv444p PSNR
y:109.519298 u:107.506485 v:104.746878
average:106.816074 min:99.167305 max:inf
yuv422p PSNR
y:109.519298 u:108.025801 v:104.489734
average:107.279817 min:98.007467 max:inf
yuv420p PSNR
y:109.519298 u:108.363875 v:105.290200
average:108.261511 min:97.461812 max:inf
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
FFDIFFSIGN was created explicitly for this purpose, since the common
return a - b idiom is unsafe regarding overflow on signed integers. It
optimizes to branchless code on common compilers.
FFDIFFSIGN also has the subjective benefit of being easier to read due
to lack of ternary operators.
Tested with FATE.
Things not covered by this are unsigned integers, for which overflows
are well defined, and also places where overflow is clearly impossible,
e.g an instance where the a - b was being done on 24 bit values.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Reviewed-by: Clément Bœsch <u@pkh.me>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
There seems to be some typos in the log messages that are fixed by this.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
This converts the usage of strtod to av_strtod in order to unify and
make number parsing more consistent. This also adds support for SI
postfixes.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
Should fix build on x86_32-msvc2012
The alternative of emulating fmin/fmax* turns out to be non trivial
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Steven Robertson <steven@strobe.cc>
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This is likely more precise and conveys the intent better.
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
This is likely more precise and conveys the intent better.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
This is likely more precise and conveys the intent better.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
This is likely more precise and conveys the intent better.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
This is likely more precise and conveys the intent better.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
