hi, i use DVRRDK3.0 evm8168 , i want change all the pixel to be 0 in OSD alg to make the screen black, but the screen also displayes what the camera captrues . why ??
i changed OSD alg in AlgLink_OsdalgProcessFrame() , as follow
for(winId=0; winId<pChObj->numWindows; winId++)
{
if(!pChObj->osdWinObj[winId].enableWin)
continue;
Vps_printf("$$$$$$$$$$$$$$$$$$$$$ enableWin $$$$$$$$$$$$$$$$$$$$$\n");
/* YUV422i or YUV420SP - Y-plane processing */
int i=0,j=0;
UInt8 *pBufferStart = pFrame->addr[0][0];
UInt8 *pBuffer;
for (i= 0; i < pFrameInfo->rtChInfo.height;i++)
{
pBuffer =pBufferStart + (i * pFrameInfo->rtChInfo.width);
for (j = 0; j< pFrameInfo->rtChInfo.width/2; j++)
{
*(pBuffer + 0)=0;
*(pBuffer + 1)=0;
*(pBuffer + 2)=0;
*(pBuffer + 3)=0;
pBuffer += 4;
}
}
pSwOsdObj->videoWindowAddr = pFrame->addr[0][0];
................
}
my application code is
/*******************************************************************************
* *
* Copyright (c) 2009 Texas Instruments Incorporated - http://www.ti.com/ *
* ALL RIGHTS RESERVED *
* *
******************************************************************************/
#include <demos/link_api_demos/common/chains.h>
#include <mcfw/interfaces/ti_venc.h>
#include <demos/link_api_demos/common/chains_ipcFrames.h>
static SystemVideo_Ivahd2ChMap_Tbl systemVid_encDecIvaChMapTbl =
{
.isPopulated = 1,
.ivaMap[0] =
{
.EncNumCh = 1,
.EncChList = {0},
.DecNumCh = 0,
.DecChList = {0},
},
.ivaMap[1] =
{
.EncNumCh = 0,
.EncChList = {0},
.DecNumCh = 1,
.DecChList = {0},
},
.ivaMap[2] =
{
.EncNumCh = 1,
.EncChList = {1},
.DecNumCh = 1,
.DecChList = {1},
},
};
Void Chains_doubleChCapNsfEncDecSwMsDis(Chains_Ctrl *chainsCfg)
{
CaptureLink_CreateParams capturePrm;
CaptureLink_VipInstParams *pCaptureInstPrm;
CaptureLink_OutParams *pCaptureOutPrm;
printf("@@@@@@@@@@@@@@@@@@@@@@@ hehe @@@@@@@@@@@@@@@@@@@@@@@\n");
/* changed by chen longhu */
IpcFramesInLinkRTOS_CreateParams ipcFramesInDspPrm;
IpcFramesOutLinkRTOS_CreateParams ipcFramesOutVpssPrm;
AlgLink_CreateParams dspAlgPrm;
DisplayLink_CreateParams displayPrm[CHAINS_SW_MS_MAX_DISPLAYS];
UInt32 captureId, vipInstId;
UInt32 ipcFramesOutVpssId,ipcFramesInDspId;
UInt32 ipcBitsOutDspId,ipcBitsInHostId;
UInt32 dspAlgId;
UInt32 displayId[CHAINS_SW_MS_MAX_DISPLAYS];
UInt32 i;
char ch;
CHAINS_INIT_STRUCT(CaptureLink_CreateParams,capturePrm);
CHAINS_INIT_STRUCT(IpcFramesOutLinkRTOS_CreateParams,ipcFramesOutVpssPrm);
CHAINS_INIT_STRUCT(IpcFramesInLinkRTOS_CreateParams,ipcFramesInDspPrm);
CHAINS_INIT_STRUCT(AlgLink_CreateParams ,dspAlgPrm);
for (i=0; i<CHAINS_SW_MS_MAX_DISPLAYS; i++) {
CHAINS_INIT_STRUCT(DisplayLink_CreateParams,displayPrm[i]);
}
captureId = SYSTEM_LINK_ID_CAPTURE;
ipcFramesOutVpssId = SYSTEM_VPSS_LINK_ID_IPC_FRAMES_OUT_0;
ipcFramesInDspId= SYSTEM_DSP_LINK_ID_IPC_FRAMES_IN_0;
dspAlgId= SYSTEM_LINK_ID_ALG_0;
displayId[0] = SYSTEM_LINK_ID_DISPLAY_0;
displayId[1] = SYSTEM_LINK_ID_DISPLAY_1;
capturePrm.numVipInst = 2;
capturePrm.tilerEnable = FALSE;
capturePrm.numBufsPerCh = 16;
capturePrm.numExtraBufs = 0;
capturePrm.maxBlindAreasPerCh = 0;
capturePrm.isPalMode = FALSE;
capturePrm.enableSdCrop = FALSE;
capturePrm.doCropInCapture = FALSE;
for(i=0; i<capturePrm.numVipInst; i++)
{
vipInstId = SYSTEM_CAPTURE_INST_VIP0_PORTA + 2*i;
pCaptureInstPrm = &capturePrm.vipInst[i];
pCaptureInstPrm->vipInstId = vipInstId%SYSTEM_CAPTURE_INST_MAX;
pCaptureInstPrm->videoDecoderId = SYSTEM_DEVICE_VID_DEC_SII9233A_DRV;
pCaptureInstPrm->inDataFormat = SYSTEM_DF_YUV422P;
pCaptureInstPrm->standard = chainsCfg->displayRes[i];
pCaptureInstPrm->numOutput = 1;
pCaptureInstPrm->numChPerOutput = 1;
pCaptureInstPrm->frameCaptureMode = FALSE;
pCaptureInstPrm->fieldsMerged = FALSE;
pCaptureOutPrm = &pCaptureInstPrm->outParams[0];
pCaptureOutPrm->dataFormat = SYSTEM_DF_YUV422I_YUYV;
pCaptureOutPrm->scEnable = FALSE;
pCaptureOutPrm->scOutWidth = chainsCfg->channelConf[i].width;
pCaptureOutPrm->scOutHeight = chainsCfg->channelConf[i].height;
pCaptureOutPrm->outQueId = 0;
}
capturePrm.outQueParams[0].nextLink = ipcFramesOutVpssId;
System_linkCreate(captureId, &capturePrm, sizeof(capturePrm));
for (i=0; i<gChains_ctrl.channelNum; i++) {
chainsCfg->displayRes[i] = capturePrm.vipInst[i].standard;
Vsys_getResSize(chainsCfg->displayRes[i], &chainsCfg->channelConf[i].width, &chainsCfg->channelConf[i].height);
Vsys_getResRate(chainsCfg->displayRes[i], &chainsCfg->channelConf[i].frameRate);
}
ipcFramesOutVpssPrm.baseCreateParams.inQueParams.prevLinkId = captureId;
ipcFramesOutVpssPrm.baseCreateParams.inQueParams.prevLinkQueId = 0;
ipcFramesOutVpssPrm.baseCreateParams.outQueParams[0].nextLink = displayId[0];
ipcFramesOutVpssPrm.baseCreateParams.numOutQue = 1;
ipcFramesOutVpssPrm.baseCreateParams.processLink = ipcFramesInDspId;
ipcFramesOutVpssPrm.baseCreateParams.notifyProcessLink = TRUE;
ipcFramesOutVpssPrm.baseCreateParams.notifyNextLink = TRUE;
ipcFramesOutVpssPrm.baseCreateParams.notifyPrevLink = TRUE;
ipcFramesOutVpssPrm.baseCreateParams.noNotifyMode = TRUE;
//prevLink->processLink->nextLink
ipcFramesInDspPrm.baseCreateParams.inQueParams.prevLinkId = ipcFramesOutVpssId;
ipcFramesInDspPrm.baseCreateParams.inQueParams.prevLinkQueId = 0;
ipcFramesInDspPrm.baseCreateParams.outQueParams[0].nextLink =dspAlgId;
ipcFramesInDspPrm.baseCreateParams.numOutQue = 1;
ipcFramesInDspPrm.baseCreateParams.notifyPrevLink = TRUE;
ipcFramesInDspPrm.baseCreateParams.notifyNextLink = TRUE;
ipcFramesInDspPrm.baseCreateParams.noNotifyMode = TRUE;
dspAlgPrm.enableOSDAlg = TRUE;
dspAlgPrm.enableSCDAlg = FALSE;
dspAlgPrm.inQueParams.prevLinkId =ipcFramesInDspId;
dspAlgPrm.inQueParams.prevLinkQueId = 0;
dspAlgPrm.outQueParams[0].nextLink = SYSTEM_LINK_ID_INVALID;//ipcBitsOutDspId;
AlgLink_OsdChWinParams * chWinPrm = &dspAlgPrm.osdChCreateParams[0].chDefaultParams;
/* set osd window max width and height */
dspAlgPrm.osdChCreateParams[0].maxWidth = 320;
dspAlgPrm.osdChCreateParams[0].maxHeight = 64;
chWinPrm->chId = 0;
chWinPrm->numWindows = 1;
chWinPrm->winPrm[0].enableWin=1;
Chains_displayCtrlInit(chainsCfg->displayRes);
System_linkCreate(ipcFramesOutVpssId, &ipcFramesOutVpssPrm, sizeof(ipcFramesOutVpssPrm));
System_linkCreate(ipcFramesInDspId, &ipcFramesInDspPrm, sizeof(ipcFramesInDspPrm));
System_linkCreate(dspAlgId, &dspAlgPrm, sizeof(dspAlgPrm));
displayPrm[0].numInputQueues = 1;
displayPrm[0].activeQueue = 0;
displayPrm[0].inQueParams[0].prevLinkId = ipcFramesOutVpssId;
displayPrm[0].inQueParams[0].prevLinkQueId = 0;
displayPrm[0].displayRes = chainsCfg->displayRes[0];
displayPrm[0].forceFieldSeparatedInputMode = FALSE;
System_linkCreate(displayId[0], &displayPrm[0], sizeof(displayPrm[0]));
Chains_memPrintHeapStatus();
{
System_linkStart(displayId[0]);
System_linkStart(captureId);
System_linkStart(dspAlgId);
while(1)
{
ch = Chains_menuRunTime();
if(ch=='0')
break;
if(ch=='v')
System_linkControl(captureId, CAPTURE_LINK_CMD_FORCE_RESET, NULL, 0, TRUE);
if(ch=='p')
System_linkControl(captureId, CAPTURE_LINK_CMD_PRINT_ADV_STATISTICS, NULL, 0, TRUE);
}
System_linkStop(captureId);
System_linkStop(dspAlgId);
System_linkStop(displayId[0]);
Chains_ipcBitsStop();
}
System_linkDelete(captureId);
System_linkDelete(displayId[0]);
System_linkDelete(dspAlgId);
System_linkDelete(ipcFramesOutVpssId);
System_linkDelete(ipcFramesInDspId);
Chains_displayCtrlDeInit();
}
i find that the OSD has run, because the printf()can be executed in AlgLink_OsdalgProcessFrame() . why screen is not black but displayes what the camera captrues ?
