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| author | Diego Elio Pettenò <flameeyes@flameeyes.eu> | 2012-09-10 01:48:25 -0700 |
|---|---|---|
| committer | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2012-09-12 15:54:33 -0400 |
| commit | 02c653fa0c60e348f5a09f82f66935c5bc470583 (patch) | |
| tree | f86552c6c0d8be6e0f5e84260be1e45ae6b1bc78 /silk/resampler_rom.h | |
| parent | 3f2efcbf3d7c58f6e328d8c4ba75554f1661bcf5 (diff) | |
| download | opus-02c653fa0c60e348f5a09f82f66935c5bc470583.tar.gz | |
silk: move down- and upsamplers constants to the header file.
These are only being used outside if the translation unit and only in
a few codepaths; by making them static in the header, the compiler can
optimize them quickly.
This avoids GOT-based access to the external symbol on Unix, and can
allow for constant propagation to optimize the code.
Signed-off-by: Diego Elio Pettenò <flameeyes@flameeyes.eu>
Diffstat (limited to 'silk/resampler_rom.h')
| -rw-r--r-- | silk/resampler_rom.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/silk/resampler_rom.h b/silk/resampler_rom.h index 0ad0686b..473b24a2 100644 --- a/silk/resampler_rom.h +++ b/silk/resampler_rom.h @@ -42,12 +42,12 @@ extern "C" #define RESAMPLER_ORDER_FIR_12 8 /* Tables for 2x downsampler */ -extern const opus_int16 silk_resampler_down2_0; -extern const opus_int16 silk_resampler_down2_1; +static const opus_int16 silk_resampler_down2_0 = 9872; +static const opus_int16 silk_resampler_down2_1 = 39809 - 65536; /* Tables for 2x upsampler, high quality */ -extern const opus_int16 silk_resampler_up2_hq_0[ 3 ]; -extern const opus_int16 silk_resampler_up2_hq_1[ 3 ]; +static const opus_int16 silk_resampler_up2_hq_0[ 3 ] = { 1746, 14986, 39083 - 65536 }; +static const opus_int16 silk_resampler_up2_hq_1[ 3 ] = { 6854, 25769, 55542 - 65536 }; /* Tables with IIR and FIR coefficients for fractional downsamplers */ extern const opus_int16 silk_Resampler_3_4_COEFS[ 2 + 3 * RESAMPLER_DOWN_ORDER_FIR0 / 2 ]; |