backpred.h
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:1k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- * FAAC - Freeware Advanced Audio Coder
- * Copyright (C) 2001 Menno Bakker
- *
- * This library 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.
- *
- * This library 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * $Id: backpred.h,v 1.3 2001/06/04 23:02:24 wmay Exp $
- */
- #ifndef _AAC_BACK_H_INCLUDED
- #define _AAC_BACK_H_INCLUDED
- #define PRED_ALPHA 0.90625
- #define PRED_A 0.953125
- #define PRED_B 0.953125
- #define ALPHA PRED_ALPHA
- #define A PRED_A
- #define B PRED_B
- #define MINVAR 1.e-10
- /* Reset every RESET_FRAME frames. */
- #define RESET_FRAME 8
- void PredCalcPrediction(double *act_spec,
- double *last_spec,
- int btype,
- int nsfb,
- int *isfb_width,
- CoderInfo *coderInfo,
- ChannelInfo *channelInfo,
- int chanNum);
- void PredInit(faacEncHandle hEncoder);
- void CopyPredInfo(CoderInfo *right, CoderInfo *left);
- #endif