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CUETools 2.1.1

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* Local Database for verification results and metadata
* FlaCuda replaced with FLACCL
This commit is contained in:
chudov
2011-03-08 15:37:43 +00:00
parent 51639e3c7b
commit 052cb096c4
65 changed files with 2839 additions and 1037 deletions
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52
CUETools/CUETools.TestCodecs/FlakeWriterTest.cs
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@@ -99,7 +99,55 @@ namespace CUETools.TestCodecs
CollectionAssert.AreEqual(File.ReadAllBytes("flake.flac"), File.ReadAllBytes("flakewriter1.flac"), "flakewriter1.flac doesn't match.");
}
public static unsafe void
compute_schur_reflection(/*const*/ double* autoc, uint max_order,
double* dreff/*[][MAX_LPC_ORDER]*/, double* err)
{
float* gen0 = stackalloc float[lpc.MAX_LPC_ORDER];
float* gen1 = stackalloc float[lpc.MAX_LPC_ORDER];
// Schur recursion
for (uint i = 0; i < max_order; i++)
gen0[i] = gen1[i] = (float)autoc[i + 1];
float error = (float)autoc[0];
for (uint i = 0; i < max_order; i++)
{
float reff = -gen1[0] / error;
error += gen1[0] * reff;
for (uint j = 0; j < max_order - i - 1; j++)
{
gen1[j] = gen1[j + 1] + reff * gen0[j];
gen0[j] = gen1[j + 1] * reff + gen0[j];
}
dreff[i] = reff;
err[i] = error;
}
}
[TestMethod()]
public unsafe void LPCTest()
{
double* autoc = stackalloc double[9];
double* reff = stackalloc double[8];
double* err = stackalloc double[8];
float* lpcs = stackalloc float[9 * lpc.MAX_LPC_ORDER];
autoc[0] = 177286873088.0;
autoc[1] = 177010016256.0;
autoc[2] = 176182624256.0;
autoc[3] = 174806581248.0;
autoc[4] = 172888768512.0;
autoc[5] = 170436820992.0;
autoc[6] = 167460765696.0;
autoc[7] = 163973169152.0;
autoc[8] = 159987859456.0;
compute_schur_reflection(autoc, 8, reff, err);
lpc.compute_lpc_coefs(8, reff, lpcs);
Assert.IsTrue(lpcs[7 * lpc.MAX_LPC_ORDER] < 3000);
}
}
}