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Diffstat (limited to 'src/libfaad/ic_predict.h')
-rw-r--r-- | src/libfaad/ic_predict.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/libfaad/ic_predict.h b/src/libfaad/ic_predict.h new file mode 100644 index 000000000..054615329 --- /dev/null +++ b/src/libfaad/ic_predict.h @@ -0,0 +1,55 @@ +/* +** FAAD - Freeware Advanced Audio Decoder +** Copyright (C) 2002 M. Bakker +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU General Public License as published by +** the Free Software Foundation; either version 2 of the License, or +** (at your option) any later version. +** +** This program 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 General Public License for more details. +** +** You should have received a copy of the GNU General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +** +** $Id: ic_predict.h,v 1.1 2002/07/14 23:43:01 miguelfreitas Exp $ +**/ + +#ifdef MAIN_DEC + +#ifndef __IC_PREDICT_H__ +#define __IC_PREDICT_H__ + +#ifdef __cplusplus +extern "C" { +#endif + +#define ALPHA 0.90625f +#define A 0.953125f +#define B 0.953125f + + +/* used to save the state */ +typedef struct { + real_t r[2]; + real_t KOR[2]; + real_t VAR[2]; +} pred_state; + + +void pns_reset_pred_state(ic_stream *ics, pred_state *state); +void reset_all_predictors(pred_state *state, uint16_t frame_len); +void ic_prediction(ic_stream *ics, real_t *spec, pred_state *state, + uint16_t frame_len); + + +#ifdef __cplusplus +} +#endif +#endif + +#endif |