1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
/*
* This file is part of AtracDEnc.
*
* AtracDEnc is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* AtracDEnc is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with AtracDEnc; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include <vector>
#include "../qmf/qmf.h"
namespace NAtracDEnc {
template<class TIn>
class Atrac3SplitFilterBank {
const static int nInSamples = 1024;
TQmf<TIn, nInSamples> Qmf1;
TQmf<TIn, nInSamples / 2> Qmf2;
TQmf<TIn, nInSamples / 2> Qmf3;
std::vector<TFloat> Buf1;
std::vector<TFloat> Buf2;
public:
Atrac3SplitFilterBank() {
Buf1.resize(nInSamples);
Buf2.resize(nInSamples);
}
void Split(TIn* pcm, TFloat* subs[4]) {
Qmf1.Split(pcm, Buf1.data(), Buf2.data());
Qmf2.Split(Buf1.data(), subs[0], subs[1]);
Qmf3.Split(Buf2.data(), subs[3], subs[2]);
}
};
} //namespace NAtracDEnc
|
