tbc.h

用于TM1300/PNX1300系列DSP（主要用于视频处理）的各种滤波器源码

/*
 * Copyright (c) 1996,2000 TriMedia Technologies Inc.         
 *
 * +------------------------------------------------------------------+
 * | This software is furnished under a license and may only be used  |
 * | and copied in accordance with the terms and conditions of  such  |
 * | a license and with the inclusion of this copyright notice. This  |
 * | software or any other copies of this software may not be provided|
 * | or otherwise made available to any other person.  The ownership  |
 * | and title of this software is not transferred.                   |
 * |                                                                  |
 * | The information in this software is subject  to change without   |
 * | any  prior notice and should not be construed as a commitment by |
 * | TriMedia Technologies.                                           |
 * |                                                                  |
 * | this code and information is provided "as is" without any        |
 * | warranty of any kind, either expressed or implied, including but |
 * | not limited to the implied warranties of merchantability and/or  |
 * | fitness for any particular purpose.                              |
 * +------------------------------------------------------------------+
 *
 *  Module name              : tbc.h 2.2
 *
 *  Last update              : 3/24/2000
 *
 *  Description              : header file for time based correction 
 */
#include <math.h>
#include <tm1/tmProcessor.h>

typedef struct {
  int	frame;
  float	skew;	/* desired phase skew - video in to video out */
  float phase;	/* current phase skew - video in to video out */	
  unsigned int clockref; /* reference value for VO CLOCK */
  unsigned int clockmin;  /* lower bound for VO_CLOCK */
  unsigned int clockmax;  /* upper bound for VO_CLOCK */
  float gain;
  int	frame_width;
  int	frame_height;
  pprocCapabilities_t procCap;
} voTBC ;

voTBC	voTbc;

void tbcInit(int mode,  float gain, float min, float max);
void tbcAdjust(void);
float tbcGetPhase(void);
void  tbcSetPhase(float phase);