tskprocess.c

DM642多媒体原版程序代码,用于图象,语音算法.

/*
 *  Copyright 2003 by Texas Instruments Incorporated.
 *  All rights reserved. Property of Texas Instruments Incorporated.
 *  Restricted rights to use, duplicate or disclose this code are
 *  granted through contract.
 *  
 */
#include <std.h>
#include <stdio.h>
#include <csl.h>
#include <csl_cache.h>
#include <csl_dat.h>
#include <chan.h>
#include <scom.h>
#include <utl.h>
#include "fvid.h"
#include "appmain.h"
#include "appThreads.h"
#include "tskProcess.h"

ScomBufChannels MsgProcess;

void tskProcessInit()
{
	tskVideoInputInit();
    tskVideoOutputInit();                
}                   

unsigned char SobelData[720*576*2];
//unsigned char *SobelData;
/*-------------------------------------------------------*/
/* Create the channel instance : the cell algorithms will*/
/* be instantiated                                       */
/*-------------------------------------------------------*/
void tskProcessStart() 
{
	tskVideoInputStart();
    tskVideoOutputStart();
}


/*-------------------------------------------------------*/
/* The task will handle the processing part :            */
/* -Will get the message from the Input task with input  */
/*  frame pointers                                       */
/* -Will execute the channel to encode followed by decode*/
/* -Will pass the decoded frame pointers to output task  */
/*-------------------------------------------------------*/

void tskProcess()
{
    ScomBufChannels *pMsgBuf;            
    unsigned char *Input;
    //unsigned char *t1;
    SCOM_Handle fromInputtoProc,fromProctoInput,\
    		fromProctoOut, fromOuttoProc;
    		
    fromInputtoProc = SCOM_open("INTOPROC");
    fromProctoInput = SCOM_open("PROCTOIN");
    fromProctoOut   = SCOM_open("PROCTOOUT");
    fromOuttoProc 	= SCOM_open("OUTTOPROC");
    
    while(1)
    {
 	    /*-----------------------------------------------------------*/
	  	/* Wait for the message from  input task to recieve captured */
  		/* frame to be cycled through encoding and decoding.         */
   		/*-----------------------------------------------------------*/
	 	pMsgBuf = SCOM_getMsg(fromInputtoProc, SYS_FOREVER); 
	 
	 	Input = pMsgBuf->bufChannel;
	   	/*-------------------------------------------------------*/
		/* Sobel detect								           	 */
		/*-------------------------------------------------------*/
		
		IMG_sobel(Input,SobelData,720,576);
	   
	   	/*-----------------------------------------------------------*/
	   	/* Send the message to the input task to continue with next frame*/
	   	/*-----------------------------------------------------------*/
	    SCOM_putMsg(fromProctoInput, NULL);  	   	
	   		
	   	/*-----------------------------------------------------------*/
	   	/* Send message to output task with pointers to decoded frame*/
	   	/*-----------------------------------------------------------*/
	    MsgProcess.bufChannel = SobelData;
	   	SCOM_putMsg(fromProctoOut,&MsgProcess);
	   	
	   	/*-----------------------------------------------------------*/
	   	/* Waiting for display one frame is completed				 */
	   	/*-----------------------------------------------------------*/
	   	SCOM_getMsg(fromOuttoProc, SYS_FOREVER); 
 	}	                                                 
}