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| author | Mathias Agopian <mathias@google.com> | 2012-10-30 14:54:32 -0700 |
|---|---|---|
| committer | Android (Google) Code Review <android-gerrit@google.com> | 2012-10-30 14:54:32 -0700 |
| commit | 670d4b7520bca8c6b3c59db2640698358d83aca6 (patch) | |
| tree | e09a330232bad507f8f58e20006dc5c20f294248 /tools/resampler_tools/fir.cpp | |
| parent | 0eac0714e9fbd6e43b1fd13a38131800b2a81377 (diff) | |
| parent | 1f09b4ada212d259b531228db67ca160d280275c (diff) | |
| download | frameworks_av-670d4b7520bca8c6b3c59db2640698358d83aca6.zip frameworks_av-670d4b7520bca8c6b3c59db2640698358d83aca6.tar.gz frameworks_av-670d4b7520bca8c6b3c59db2640698358d83aca6.tar.bz2 | |
Merge changes Ide218785,I86d0bb82
* changes:
fix SINC resampler on non ARM architectures
fix another issue with generating FIR coefficients
Diffstat (limited to 'tools/resampler_tools/fir.cpp')
| -rw-r--r-- | tools/resampler_tools/fir.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/resampler_tools/fir.cpp b/tools/resampler_tools/fir.cpp index acd9911..ea3ef50 100644 --- a/tools/resampler_tools/fir.cpp +++ b/tools/resampler_tools/fir.cpp @@ -222,7 +222,7 @@ int main(int argc, char** argv) if (!polyphase) { for (int i=0 ; i<N ; i++) { double x = (2.0 * M_PI * i * Fcr) / (1 << nz); - double y = kaiser(i+N, 2*N, beta) * sinc(x); + double y = kaiser(i+N, 2*N, beta) * sinc(x) * 2.0 * Fcr; y *= atten; if (!debug) { @@ -247,7 +247,7 @@ int main(int argc, char** argv) // generate a FIR per phase for (int i=-nzc ; i<nzc ; i++) { double x = 2.0 * M_PI * Fcr * (i + p); - double y = kaiser(i+N, 2*N, beta) * sinc(x); + double y = kaiser(i+N, 2*N, beta) * sinc(x) * 2.0 * Fcr;; y *= atten; if (!format) { int64_t yi = floor(y * ((1ULL<<(nc-1))) + 0.5); |