We used the SSE reciprocal square root instruction to vectorize the serch rather
than compare one at a time with multiplies. Speeds up the entire encoder by 8-10%.

No measurable speed change.

Speeds up encoding by another ~1-2%

Speeds up CELT encoding by around 5% on x86

(found through fuzzing)

No point in minimizing the rate too since it's almost constant.

Felicia Lim authored 8 years ago and Jean-Marc Valin committed 8 years ago

Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>

Ricardo Constantino (:RiCON) authored 8 years ago and Ralph Giles committed 8 years ago

This lets projects which depend on opus build against our
test results.

Signed-off-by: Ralph Giles <giles@mozilla.com>

Ricardo Constantino (:RiCON) authored 8 years ago and Ralph Giles committed 8 years ago

Warning 4146 is "unary minus operator applied to unsigned type,
result still unsigned"

Signed-off-by: Ralph Giles <giles@mozilla.com>

Ricardo Constantino (:RiCON) authored 8 years ago and Ralph Giles committed 8 years ago

Signed-off-by: Ralph Giles <giles@mozilla.com>

Ricardo Constantino (:RiCON) authored 8 years ago and Ralph Giles committed 8 years ago

This works around the issue with using private symbols.

Signed-off-by: Ralph Giles <giles@mozilla.com>

Ricardo Constantino (:RiCON) authored 8 years ago and Ralph Giles committed 8 years ago

Since DLL builds can't include both fixed and float, separate DLL_fixed
configurations added that include fixed silk code and also set FIXED_POINT.

Signed-off-by: Ralph Giles <giles@mozilla.com>

Signed-off-by: Ralph Giles <giles@mozilla.com>

Signed-off-by: Ralph Giles <giles@mozilla.com>

SDLCheck is a superset of BufferSecurityCheck and is off by default.
If it's set, it complains that it's overriden by BufferSecurityCheck.

Warning 4996 is already ignored in other binaries (fopen being deprecated and
suggesting fopen_s).

NoExtensions isn't a valid value for EnableEnhancedInstructionSet in x64 builds.

Run before any other project.

Avoids trying to create and replace version.h more than once which
led to file-locking errors with multicore builds.

Signed-off-by: Ralph Giles <giles@mozilla.com>

For large values of maxabs_Q20, silk_MUL( maxabs_Q20, ind + 1 ) could
overflow.

Fixes a potential overflow in high-passed signal for transient detection
and ensures that the shift can never go negative

We can't use the attenuation since it doesn't apply to the memory

extrapolation_len can be up to 960+120, so we we need a shift of 10
if the values are very large.

Gives us a tighter bound on the pitch postfilter input to avoid overflows

This could cause overflows when processing non-saturated TDAC values.

Otherwise, the output can grow as large as SIG_SAT/(1-0.75), which can cause
an overflow when adding two values (before multiplying by the filter tap).

Reduces the XX values to avoid an overflow in silk_VQ_WMat_EC(), even in
floating-point.