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/*
* 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
*/
#ifndef ATRAC3PLUSDSP_H
#define ATRAC3PLUSDSP_H
#define ATRAC3P_SUBBANDS 16 ///< number of PQF subbands
#define ATRAC3P_SUBBAND_SAMPLES 128 ///< number of samples per subband
#define ATRAC3P_FRAME_SAMPLES (ATRAC3P_SUBBAND_SAMPLES * ATRAC3P_SUBBANDS)
#define ATRAC3P_PQF_FIR_LEN 12
typedef struct Atrac3pIPQFChannelCtx {
float buf1[ATRAC3P_PQF_FIR_LEN * 2][8];
float buf2[ATRAC3P_PQF_FIR_LEN * 2][8];
int pos;
} Atrac3pIPQFChannelCtx;
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
void ff_atrac3p_ipqf(Atrac3pIPQFChannelCtx *hist, const float *in, float *out);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif
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