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/frameworks/base/media/tests/audiotests/ |
H A D | shared_mem_test.cpp | 78 unsigned long phi; local 87 phi = 0; 88 Generate(smpBuf, BUF_SZ, amplitude, phi, dPhi); // fill buffer 134 void AudioTrackTest::Generate(short *buffer, long bufferSz, long amplitude, unsigned long &phi, long dPhi) argument 138 buffer[i0] = ComputeSine( amplitude, phi); 139 phi += dPhi; 149 short AudioTrackTest::ComputeSine(long amplitude, long phi) argument 155 sample = (amplitude*sin1024[(phi>>22) & 0x3ff]) >> 15; 157 l0 = (phi>>12) & 0x3ff; // 2^20 * x / (2*pi) 158 l1 = (amplitude*sin1024[((phi>>2 173 double phi = 0; local [all...] |
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