private LookupCollection(
EnvelopeLookup envelopeLookup,
List <MdctLookup> transformLookup,
PsyGlobalLookup psyGlobalLookup,
List <PsyLookup> psyLookup,
List <DrftLookup> fftLookup,
List <FloorLookup> floorLookup,
List <ResidueLookup> residueLookup)
{
EnvelopeLookup = envelopeLookup;
TransformLookup = transformLookup;
PsyGlobalLookup = psyGlobalLookup;
PsyLookup = psyLookup;
FftLookup = fftLookup;
FloorLookup = floorLookup;
ResidueLookup = residueLookup;
}
private LookupCollection(
EnvelopeLookup envelopeLookup,
MdctLookup[] transformLookup,
PsyGlobalLookup psyGlobalLookup,
PsyLookup[] psyLookup,
DrftLookup[] fftLookup,
FloorLookup[] floorLookup,
ResidueLookup[] residueLookup)
{
EnvelopeLookup = envelopeLookup;
TransformLookup = transformLookup;
PsyGlobalLookup = psyGlobalLookup;
PsyLookup = psyLookup;
FftLookup = fftLookup;
FloorLookup = floorLookup;
ResidueLookup = residueLookup;
}
public static LookupCollection Create(VorbisInfo info)
{
var codecSetup = info.CodecSetup;
var psyGlobal = new PsyGlobalLookup(codecSetup.PsyGlobalParam);
var envelope = new EnvelopeLookup(codecSetup.PsyGlobalParam, info);
// MDCT is tranform 0
var transform = new MdctLookup[2];
transform[0] = new MdctLookup(codecSetup.BlockSizes[0]);
transform[1] = new MdctLookup(codecSetup.BlockSizes[1]);
// analysis always needs an fft
var fftLookup = new DrftLookup[2];
fftLookup[0] = new DrftLookup(codecSetup.BlockSizes[0]);
fftLookup[1] = new DrftLookup(codecSetup.BlockSizes[1]);
// finish the codebooks
if (codecSetup.FullBooks == null)
{
codecSetup.FullBooks = new CodeBook[codecSetup.BookParams.Count];
for (var i = 0; i < codecSetup.BookParams.Count; i++)
{
codecSetup.FullBooks[i] = CodeBook.InitEncode(codecSetup.BookParams[i]);
}
}
var psyLookup = new PsyLookup[codecSetup.PsyParams.Count];
for (var i = 0; i < psyLookup.Length; i++)
{
psyLookup[i] = new PsyLookup(
codecSetup.PsyParams[i],
codecSetup.PsyGlobalParam,
codecSetup.BlockSizes[codecSetup.PsyParams[i].BlockFlag] / 2,
info.SampleRate);
}
// initialize all the backend lookups
var floor = new FloorLookup[codecSetup.FloorParams.Count];
for (var i = 0; i < floor.Length; i++)
{
floor[i] = new FloorLookup(codecSetup.FloorParams[i]);
}
var residue = new ResidueLookup[codecSetup.ResidueParams.Count];
for (var i = 0; i < residue.Length; i++)
{
residue[i] = new ResidueLookup(codecSetup.ResidueParams[i], new List <CodeBook>(codecSetup.FullBooks));
}
return(new LookupCollection(
envelope,
new List <MdctLookup>(transform),
psyGlobal,
new List <PsyLookup>(psyLookup),
new List <DrftLookup>(fftLookup),
new List <FloorLookup>(floor),
new List <ResidueLookup>(residue)));
}
