DVRRDK3.5的osd创建代码，放到4.0后就没有效果了。

多谢回复，hsu。

1，格式设置应该没有问题的。我现在在demo里面添加了dei，整体流程如下：

nullsrc(1路输出)->dei->ipcframesOutVpss->swms->dup(1路输出)->display

                                                 |----->ipcFramesInDsp->dspAlg(osd)

在这个demo里面，我把nullsrc的输出格式分别设置为SYSTEM_DF_YUV420SP_UV 以及 SYSTEM_DF_YUV422I_YUYV，这两种情况下都是有osd出现的。区别只是，yuv420sp 时，图像是黑色的，yuv422i时，图像是绿色的，osd都正常。下面是dei的配置参数：

	deiPrm0.inQueParams.prevLinkId = id_set.nullsrcId;
	deiPrm0.inQueParams.prevLinkQueId = 0;
	deiPrm0.outQueParams[DEI_LINK_OUT_QUE_DEI_SC].nextLink = id_set.ipcFramesOutVpssId1;
	deiPrm0.enableOut[DEI_LINK_OUT_QUE_DEI_SC] = TRUE;
	//deiPrm0.enableOut[DEI_LINK_OUT_QUE_VIP_SC] = TRUE;
	deiPrm0.enableOut[DEI_LINK_OUT_QUE_VIP_SC_SECONDARY_OUT] = FALSE;
	deiPrm0.tilerEnable[DEI_LINK_OUT_QUE_DEI_SC] = FALSE;
	deiPrm0.tilerEnable[DEI_LINK_OUT_QUE_VIP_SC] = FALSE;
	deiPrm0.comprEnable = FALSE;
	deiPrm0.setVipScYuv422Format = FALSE;
	deiPrm0.enableDeiForceBypass = TRUE;//TRUE;//FALSE;
	deiPrm0.enableLineSkipSc = TRUE;//TRUE;
	deiPrm0.inputFrameRate[DEI_LINK_OUT_QUE_DEI_SC] = 30;
	deiPrm0.outputFrameRate[DEI_LINK_OUT_QUE_DEI_SC] = 30;

	deiPrm0.inputDeiFrameRate= 30;
	deiPrm0.outputDeiFrameRate = 30;

	deiPrm0.numBufsPerCh[DEI_LINK_OUT_QUE_DEI_SC] = 6;
	//deiPrm0.numBufsPerCh[DEI_LINK_OUT_QUE_VIP_SC] = 6;

2.我在dsp端，在osd运行时添加了打印信息，可以确定执行了 SWOSD_blendWindow(pSwOsdObj); 这个函数。打印信息里面，pitch看起来不太明白，另外格式为422i时，AlgLink_OsdalgPrintInfo(pSwOsdObj, pFrame); 函数的打印信息里面 GRPX 的起始坐标跟我预设的不一致。其他的看起来正常。

另外，数据格式不一致，屏幕上总该出现点什么才对。

3.程序设计框架如下：

红色部分是osd相关的。第一次是添加到了cap之后。第二次是添加到了Merge（to Encoder） 之后，ipcOutVpss之前。

下面是osd部分的代码：

#ifdef _C_OSDADD_ //add osd after encoder
	//gHdLsUsecaseContext.mergePrm[MERGE_ENCODE].outQueParams.nextLink        = gHdLsUsecaseContext.ipcFramesOutVpssOsdId;

	gHdLsUsecaseContext.ipcFramesOutVpssPrmOsd.baseCreateParams.inQueParams.prevLinkId = gHdLsUsecaseContext.mergeId[MERGE_ENCODE];
	gHdLsUsecaseContext.ipcFramesOutVpssPrmOsd.baseCreateParams.inQueParams.prevLinkQueId = 0;
	gHdLsUsecaseContext.ipcFramesOutVpssPrmOsd.baseCreateParams.notifyPrevLink = TRUE;
	gHdLsUsecaseContext.ipcFramesOutVpssPrmOsd.baseCreateParams.equallyDivideChAcrossOutQues = TRUE;

	gHdLsUsecaseContext.ipcFramesOutVpssPrmOsd.baseCreateParams.numOutQue = 1;
	gHdLsUsecaseContext.ipcFramesOutVpssPrmOsd.baseCreateParams.outQueParams[0].nextLink = gHdLsUsecaseContext.ipcOutVpssId;
	
	gHdLsUsecaseContext.ipcFramesOutVpssPrmOsd.baseCreateParams.notifyNextLink = TRUE;
	
	gHdLsUsecaseContext.ipcFramesOutVpssPrmOsd.baseCreateParams.processLink = gHdLsUsecaseContext.ipcFramesInDspOsdId;
	gHdLsUsecaseContext.ipcFramesOutVpssPrmOsd.baseCreateParams.notifyProcessLink = TRUE;
	gHdLsUsecaseContext.ipcFramesOutVpssPrmOsd.baseCreateParams.noNotifyMode = FALSE;

	gHdLsUsecaseContext.ipcFramesInDspPrmOsd.baseCreateParams.inQueParams.prevLinkId = gHdLsUsecaseContext.ipcFramesOutVpssOsdId;
	gHdLsUsecaseContext.ipcFramesInDspPrmOsd.baseCreateParams.inQueParams.prevLinkQueId = 0;
	gHdLsUsecaseContext.ipcFramesInDspPrmOsd.baseCreateParams.numOutQue = 1;
	gHdLsUsecaseContext.ipcFramesInDspPrmOsd.baseCreateParams.outQueParams[0].nextLink = gHdLsUsecaseContext.dspAlgOsdId;
	gHdLsUsecaseContext.ipcFramesInDspPrmOsd.baseCreateParams.notifyNextLink = TRUE;
	gHdLsUsecaseContext.ipcFramesInDspPrmOsd.baseCreateParams.notifyPrevLink = TRUE;
	gHdLsUsecaseContext.ipcFramesInDspPrmOsd.baseCreateParams.noNotifyMode = FALSE;

	gHdLsUsecaseContext.dspAlgPrmOsd.inQueParams.prevLinkId = gHdLsUsecaseContext.ipcFramesInDspOsdId;
	gHdLsUsecaseContext.dspAlgPrmOsd.inQueParams.prevLinkQueId = 0;
	gHdLsUsecaseContext.dspAlgPrmOsd.enableOSDAlg = TRUE;
	gHdLsUsecaseContext.dspAlgPrmOsd.enableSCDAlg = FALSE;
	gHdLsUsecaseContext.dspAlgPrmOsd.outQueParams[0].nextLink = SYSTEM_LINK_ID_INVALID;

	int chId;
	////
	Ptr osdWinSrAddr[5][2];
	Ptr osdWinBuPtr[5][2];
	int osdYSize, osdSize;
	unsigned int osdFormat;
	int i, j;
#define OSD_W	224		//osd 瀹藉害
#define OSD_H	30		//osd 楂樺害

	osdYSize = OSD_W * OSD_H;
	osdSize = osdYSize * 2;
	osdFormat = SYSTEM_DF_YUV420SP_UV;
	
	for(i = 0; i < 5; i++)
	{
		AlgLink_OsdChWinParams * chWinPrm = &gHdLsUsecaseContext.dspAlgPrmOsd.osdChCreateParams[i].chDefaultParams;

		/* set osd window max width and height */
		gHdLsUsecaseContext.dspAlgPrmOsd.osdChCreateParams[i].maxWidth = OSD_W;
		gHdLsUsecaseContext.dspAlgPrmOsd.osdChCreateParams[i].maxHeight = OSD_H;
		gHdLsUsecaseContext.dspAlgPrmOsd.osdChCreateParams[i].osdFormat = osdFormat;
		chWinPrm->chId = i;
		chWinPrm->colorKey[0] = 0xfa;
		chWinPrm->colorKey[1] = 0x7e;
		chWinPrm->colorKey[2] = 0x7d;
		chWinPrm->numWindows = 1;

		for(j=0; j < chWinPrm->numWindows; j++)
		{	
		/* set osd window params. In this demo # of windows set to 2 */
			chWinPrm->winPrm[j].format			   = osdFormat;
			chWinPrm->winPrm[j].startX			   = EXAMPLE_OSD_WIN0_STARTX;//just for channel 0.
			chWinPrm->winPrm[j].startY			   = EXAMPLE_OSD_WIN0_STARTY;
			chWinPrm->winPrm[j].width			   = OSD_W;
			chWinPrm->winPrm[j].height			   = OSD_H;
			chWinPrm->winPrm[j].lineOffset		   = OSD_W;
			chWinPrm->winPrm[j].globalAlpha 	   	   = 0x80;//閫氶€忕壒鏁堬紝0x00鍏ㄩ€?0x40鍗婇€忥紝0x80鍏ㄩ伄
			chWinPrm->winPrm[j].transperencyEnable   = EXAMPLE_OSD_TRANSPARENCY;
			chWinPrm->winPrm[j].enableWin		   = EXAMPLE_OSD_ENABLE_WIN;
		
			Chains_createBuf((void *)&chWinPrm->winPrm[j].addr[0][0], &osdWinBuPtr[i][0], &osdWinSrAddr[i][0],  osdSize, SYSTEM_IPC_SR_NON_CACHED_DEFAULT);	

			//chWinPrm->winPrm[j].format			   = osdFormat;//SYSTEM_DF_YUV420SP_UV;SYSTEM_DF_YUV422I_YUYV
			if(osdFormat == SYSTEM_DF_YUV420SP_UV){
				chWinPrm->winPrm[j].addr[0][1] = chWinPrm->winPrm[j].addr[0][0] + osdYSize;
				memcpy(osdWinBuPtr[i][0], gMCFW_swosdTiLogoYuv420sp, sizeof(gMCFW_swosdTiLogoYuv420sp));
			}else if(osdFormat == SYSTEM_DF_YUV422I_YUYV){
				chWinPrm->winPrm[j].addr[0][1] = NULL;
				memcpy(osdWinBuPtr[i][0], gMCFW_swosdTiLogoYuv422i, sizeof(gMCFW_swosdTiLogoYuv422i));
			}
				//闇€瑕佹牴鎹噰闆嗗彛鐨勬暟鎹被鍨嬫潵璁剧疆
		}
	}


	System_linkCreate(gHdLsUsecaseContext.ipcFramesOutVpssOsdId,
		&gHdLsUsecaseContext.ipcFramesOutVpssPrmOsd,
		sizeof(gHdLsUsecaseContext.ipcFramesOutVpssPrmOsd));
	System_linkCreate(gHdLsUsecaseContext.ipcFramesInDspOsdId,
		&gHdLsUsecaseContext.ipcFramesInDspPrmOsd,
		sizeof(gHdLsUsecaseContext.ipcFramesInDspPrmOsd)
		);
	System_linkCreate(gHdLsUsecaseContext.dspAlgOsdId,
		&gHdLsUsecaseContext.dspAlgPrmOsd,
		sizeof(gHdLsUsecaseContext.dspAlgPrmOsd)
		);

#endif

非常感谢你的回复。