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video.c
Package: DSP-C6000-DM642DEMO.rar　[view]
Upload User: dahaojd
Upload Date: 2008-01-29
Package Size: 14357k
Code Size: 5k
Category:

DSP program

Development Platform:

C/C++

video.c：Code Content
  1. /*
  2.  *  Copyright 2003 by Texas Instruments Incorporated.
  3.  *  All rights reserved. Property of Texas Instruments Incorporated.
  4.  *  Restricted rights to use, duplicate or disclose this code are
  5.  *  granted through contract.
  6.  *  
  7.  */
  8. /* "@(#) DDK 1.10.00.23 07-02-03 (ddk-b12)" */
  9. #include <std.h>
  10. #include <tsk.h>  
  11. #include <sem.h>   
  12. #include <gio.h>
  14. #include <csl_dat.h>
  15. #include <csl_cache.h>
  18. #include <fvid.h>
  19. #include <edc.h>
  20. #include <vport.h>
  21. #include <vportcap.h>
  22. #include <vportdis.h>
  23. #include "saa7121.h"
  24. #include <saa7115.h>    
  25. #include <evmdm642.h>
  27. #include "vcapparams.h"
  28. #include "vdisparams.h"   
  30. /* heap IDs defined in the BIOS configuration file */
  31. extern Int EXTERNALHEAP;
  33. #include "ICETEK-DM642-C.h"
  34. extern unsigned char nMemTemp[720],nUV[720];
  35. extern unsigned char imgHisto[HISTOHIGH*HISTOWIDTH];
  36. /*
  37.  * ======== main ========
  38.  */
  39. main()
  40. {
  41.     ICETEKDM642CInit();
  42.     /******************************************************/
  43.     /* open CSL DAT module for fast copy                  */
  44.     /******************************************************/
  45.     CSL_init();                                             
  46.     CACHE_clean(CACHE_L2ALL, 0, 0);
  47.     CACHE_setL2Mode(CACHE_128KCACHE);       
  48.     CACHE_enableCaching(CACHE_EMIFA_CE00);
  49.     CACHE_enableCaching(CACHE_EMIFA_CE01);
  50.     DAT_open(DAT_CHAANY, DAT_PRI_LOW, DAT_OPEN_2D);
  51. }
  53. /*
  54.  * ======== tskVideoLoopback ========
  55.  * video loopback function.
  56.  */
  57. void tskVideoLoopback()
  58. {
  59.     Int i;
  60.     unsigned int m_nID;
  61.     Int status;
  62.     FVID_Handle disChan; 
  63.     Int frames = 0;
  64.     FVID_Frame *disFrameBuf;
  65.     Int numLinesDis = EVMDM642_vDisParamsChan.imgVSizeFld1;
  66.     Int numLinesCap = EVMDM642_vCapParamsChan.fldYStop1 -
  67.        EVMDM642_vCapParamsChan.fldYStrt1+1;
  69.     
  70.     Int numLines = (numLinesDis > numLinesCap) ? numLinesCap : numLinesDis;
  72.     FVID_Handle capChan; 
  73.     Int numPixels = EVMDM642_vCapParamsChan.fldXStop1 - 
  74.        EVMDM642_vCapParamsChan.fldXStrt1+1;
  75.     FVID_Frame *capFrameBuf;
  76.     Int capLinePitch = EVMDM642_vCapParamsChan.fldXStop1 - 
  77.        EVMDM642_vCapParamsChan.fldXStrt1+1;
  78.     Int disLinePitch = EVMDM642_vDisParamsChan.imgHSizeFld1;
  80.     numLines *= 2; /* both fields */
  81.     /******************************************************/
  82.     /* allocate both capture and display frame buffers    */
  83.     /* in external heap memory                            */
  84.     /******************************************************/
  85.         EVMDM642_vCapParamsChan.segId = EXTERNALHEAP;
  86.         EVMDM642_vDisParamsChan.segId = EXTERNALHEAP;
  87.         EVMDM642_vDisParamsSAA7121.hI2C = EVMDM642_I2C_hI2C;
  88.         EVMDM642_vCapParamsSAA7115.hI2C = EVMDM642_I2C_hI2C;
  90.     /******************************************************/
  91.     /* initialization of capture driver                   */
  92.     /******************************************************/
  93.     capChan = FVID_create("/VP0CAPTURE/A/0", 
  94.             IOM_INPUT, &status, (Ptr)&EVMDM642_vCapParamsChan, NULL);
  95.     /******************************************************/
  96.     /* initialization of display driver                   */
  97.     /******************************************************/
  98.     disChan = FVID_create("/VP2DISPLAY/1", IOM_OUTPUT, 
  99.         &status, (Ptr)&EVMDM642_vDisParamsChan, NULL);
  101.     
  102.     /******************************************************/
  103.     /* configure video encoder & decoder                  */
  104.     /******************************************************/
  105.     FVID_control(disChan, VPORT_CMD_EDC_BASE + EDC_CONFIG, 
  106.         (Ptr)&EVMDM642_vDisParamsSAA7121);
  107.     FVID_control(capChan, VPORT_CMD_EDC_BASE + EDC_CONFIG, 
  108.         (Ptr)&EVMDM642_vCapParamsSAA7115);
  110.     /******************************************************/
  111.     /* start capture & display operation                  */    
  112.     /******************************************************/
  113.     FVID_control(disChan, VPORT_CMD_START, NULL);
  114.     FVID_control(capChan, VPORT_CMD_START, NULL);
  115.     
  116.     /********************************************************/
  117.     /* request a frame buffer from display & capture driver */
  118.     /********************************************************/
  119.     FVID_alloc(disChan, &disFrameBuf);
  120.     FVID_alloc(capChan, &capFrameBuf);
  121.     frames ++;
  123.     while ( 1 )
  124.     {/* loop forever */
  125.         /* copy data from capture buffer to display buffer */
  126.         /***************************************************/
  128.         for ( i=0;i<numLines;i++) 
  129.         {
  130.             m_nID=DAT_copy(capFrameBuf->frame.iFrm.y1+i*capLinePitch,nMemTemp,720);
  131. DAT_wait(m_nID);
  132.             ICETEKDM642CStatistic();
  133.             DAT_copy(nMemTemp,disFrameBuf->frame.iFrm.y1+i*disLinePitch,720);
  134.             DAT_copy(nUV,disFrameBuf->frame.iFrm.cb1 + i * (disLinePitch >> 1),360);
  135.             DAT_copy(nUV,disFrameBuf->frame.iFrm.cr1 + i * (disLinePitch >> 1),360);
  136.         }
  137.         ICETEKDM642CHistogramEnhance();
  138.         DAT_wait(DAT_XFRID_WAITALL);
  139.         FVID_exchange(capChan, &capFrameBuf);
  140.         FVID_exchange(disChan, &disFrameBuf);        
  141.         frames ++;              
  142.    }
  143. }