Hi3536视频编解码之视频叠加

通过Hi3536sdk中Hi3536_SDK_V2.0.7.0/mpp_master/sample/vo的例程修改而来的视频叠加简单例程。
例程实现了打开16个窗口&＃xff0c;通过按键输入&＃xff0c;控制每个窗口以规定的大小、位置叠加起来。
效果如下&＃xff1a;

主要功能函数代码如下&＃xff08;注释行为关键部分&＃xff09;&＃xff1a;

HI_S32 SAMPLE_VO_Virtual_HD0(HI_VOID)
{HI_S32 s32Ret &＃61; HI_SUCCESS; VB_CONF_S stVbConf; HI_U32 u32BlkSize;VDEC_CHN VdChn &＃61; 1;PAYLOAD_TYPE_E enType; SIZE_S stSize; HI_S32 s32VpssGrpCnt &＃61; 6, s32VpssChnCnt &＃61; 1; HI_S32 i,x,y;HI_U32 u32WndNum;VPSS_GRP_ATTR_S stGrpAttr; VPSS_CHN_MODE_S stVpssChnMode;VENC_CHN VeJpegChn &＃61; 0;VO_DEV VoDev; VO_LAYER VoLayer;VO_PUB_ATTR_S stVoPubAttr; SAMPLE_VO_MODE_E enVoMode;VO_VIDEO_LAYER_ATTR_S stLayerAttr;HI_CHAR ch;VDEC_CHN_ATTR_S stVdecChnAttr[VDEC_MAX_CHN_NUM];VdecThreadParam stVdecSend[VDEC_MAX_CHN_NUM]; pthread_t VdecThread[2 * VDEC_MAX_CHN_NUM];/******************************************step 1: init variable ******************************************/ memset(&stVbConf,0,sizeof(VB_CONF_S)); u32BlkSize &＃61; SAMPLE_COMM_SYS_CalcPicVbBlkSize(VIDEO_ENCODING_MODE_PAL,\PIC_HD1080, SAMPLE_PIXEL_FORMAT, SAMPLE_SYS_ALIGN_WIDTH);stVbConf.u32MaxPoolCnt &＃61; 128;stVbConf.astCommPool[0].u32BlkSize &＃61; u32BlkSize;stVbConf.astCommPool[0].u32BlkCnt &＃61; 20;s32Ret &＃61; SAMPLE_COMM_SYS_GetPicSize(VIDEO_ENCODING_MODE_PAL, PIC_HD1080, &stSize);if (HI_SUCCESS !&＃61;s32Ret){SAMPLE_PRT("get picture size failed!\n");return HI_FAILURE;}if (704 &＃61;&＃61; stSize.u32Width){stSize.u32Width &＃61; 720;}else if (352 &＃61;&＃61; stSize.u32Width){stSize.u32Width &＃61; 360;}else if (176 &＃61;&＃61; stSize.u32Width){stSize.u32Width &＃61; 180;}/******************************************step 2: mpp system init. ******************************************/s32Ret &＃61; SAMPLE_COMM_SYS_Init(&stVbConf);if (HI_SUCCESS !&＃61; s32Ret){SAMPLE_PRT("system init failed with %d!\n", s32Ret);goto END_VIRTUAL_1;}/******************************************step 3: start vdec ******************************************/ enType &＃61; PT_H264;memset(&stVbConf,0,sizeof(VB_CONF_S)); SAMPLE_COMM_VDEC_ModCommPoolConf(&stVbConf, enType, &stSize, VdChn); s32Ret &＃61; SAMPLE_COMM_VDEC_InitModCommVb(&stVbConf);if(s32Ret !&＃61; HI_SUCCESS){ SAMPLE_PRT("init mod common vb fail for %#x!\n", s32Ret);goto END_VIRTUAL_1;}/**************create vdec chn****************************/ SAMPLE_COMM_VDEC_ChnAttr(VdChn, &stVdecChnAttr[0], enType, &stSize);s32Ret &＃61; SAMPLE_COMM_VDEC_Start(VdChn, &stVdecChnAttr[0]); if (HI_SUCCESS !&＃61; s32Ret){SAMPLE_PRT("Start Vdec failed!\n");goto END_VIRTUAL_2;} /**************send stream****************************/SAMPLE_COMM_VDEC_ThreadParam(VdChn, &stVdecSend[0], &stVdecChnAttr[0], "1080P.h264"); SAMPLE_COMM_VDEC_StartSendStream(VdChn, &stVdecSend[0], &VdecThread[0]);/******************************************step 4: start vpss with vdec bind vpss ******************************************/stGrpAttr.u32MaxW &＃61; stSize.u32Width;stGrpAttr.u32MaxH &＃61; stSize.u32Height;stGrpAttr.bIeEn &＃61; HI_FALSE;stGrpAttr.bNrEn &＃61; HI_TRUE;stGrpAttr.bHistEn &＃61; HI_FALSE;stGrpAttr.enDieMode &＃61; VPSS_DIE_MODE_NODIE;stGrpAttr.enPixFmt &＃61; SAMPLE_PIXEL_FORMAT;stGrpAttr.bDciEn &＃61; HI_FALSE;stGrpAttr.bEsEn &＃61; HI_TRUE;s32Ret &＃61; SAMPLE_COMM_VPSS_Start(s32VpssGrpCnt, &stSize, s32VpssChnCnt, &stGrpAttr);if (HI_SUCCESS !&＃61; s32Ret){SAMPLE_PRT("Start Vpss failed!\n");goto END_VIRTUAL_3;}for(i&＃61;0; i<1; i&＃43;&＃43;){s32Ret &＃61; HI_MPI_VPSS_GetChnMode(i, 0, &stVpssChnMode);if (HI_SUCCESS !&＃61; s32Ret){SAMPLE_PRT("HI_MPI_VPSS_SetChnMode failed with %x\n",s32Ret);goto END_VIRTUAL_3;}stVpssChnMode.bDouble &＃61; HI_FALSE;stVpssChnMode.enChnMode &＃61; VPSS_CHN_MODE_USER;stVpssChnMode.enPixelFormat &＃61; PIXEL_FORMAT_YUV_SEMIPLANAR_420;stVpssChnMode.u32Width &＃61; 1920;stVpssChnMode.u32Height &＃61; 1080;stVpssChnMode.enCompressMode &＃61; COMPRESS_MODE_NONE; s32Ret &＃61; HI_MPI_VPSS_SetChnMode(i, 0, &stVpssChnMode);if (HI_SUCCESS !&＃61; s32Ret){SAMPLE_PRT("HI_MPI_VPSS_SetChnMode failed with %x\n",s32Ret);goto END_VIRTUAL_3;}}for(i &＃61; 0;i < VdChn; i&＃43;&＃43;){s32Ret &＃61; SAMPLE_COMM_VDEC_BindVpss(i,i);if (HI_SUCCESS !&＃61; s32Ret){SAMPLE_PRT("SAMPLE_COMM_VDEC_BindVpss failed!\n");goto END_VIRTUAL_4;}}/***************************************************step 5: start VIRT0 with 4 windows and bind to VENC***************************************************/ /**************start Dev****************************/VoDev &＃61; SAMPLE_VO_DEV_VIRT0; stVoPubAttr.enIntfSync &＃61; VO_OUTPUT_1080P30;stVoPubAttr.enIntfType &＃61; VO_INTF_HDMI;stVoPubAttr.u32BgColor &＃61; 0x0;s32Ret &＃61; SAMPLE_COMM_VO_StartDev(VoDev, &stVoPubAttr); if (HI_SUCCESS !&＃61; s32Ret){SAMPLE_PRT("SAMPLE_COMM_VO_StartDev failed!\n");goto END_VIRTUAL_4;}/**************start Layer****************************/VoLayer &＃61; SAMPLE_VO_LAYER_VIRT0;stLayerAttr.bClusterMode &＃61; HI_FALSE;stLayerAttr.bDoubleFrame &＃61; HI_FALSE;stLayerAttr.enPixFormat &＃61; SAMPLE_PIXEL_FORMAT; s32Ret &＃61; SAMPLE_COMM_VO_GetWH(stVoPubAttr.enIntfSync, \&stLayerAttr.stDispRect.u32Width, &stLayerAttr.stDispRect.u32Height, &stLayerAttr.u32DispFrmRt);if (s32Ret !&＃61; HI_SUCCESS){SAMPLE_PRT("failed with %#x!\n", s32Ret);goto END_VIRTUAL_5;}stLayerAttr.stImageSize.u32Width &＃61; stLayerAttr.stDispRect.u32Width;stLayerAttr.stImageSize.u32Height &＃61; stLayerAttr.stDispRect.u32Height;HI_MPI_VO_SetVideoLayerPartitionMode(VoLayer,VO_PART_MODE_SINGLE);s32Ret &＃61; SAMPLE_COMM_VO_StartLayer(VoLayer, &stLayerAttr); if (HI_SUCCESS !&＃61; s32Ret){SAMPLE_PRT("SAMPLE_COMM_VO_StartLayer failed!\n");goto END_VIRTUAL_5;} /**************start Chn****************************/ enVoMode &＃61; VO_MODE_16MUX; //16个窗口s32Ret &＃61; SAMPLE_COMM_VO_StartChn(VoLayer,enVoMode); if (s32Ret !&＃61; HI_SUCCESS){SAMPLE_PRT("failed with %#x!\n", s32Ret);goto END_VIRTUAL_6;} /**************vo bind to vpss****************************/u32WndNum &＃61; 16; //16个窗口for(i &＃61; 0;i < u32WndNum;i&＃43;&＃43;){s32Ret &＃61; SAMPLE_COMM_VO_BindVpss(VoLayer, i, 0, VPSS_CHN0);if (HI_SUCCESS !&＃61; s32Ret){SAMPLE_PRT("SAMPLE_COMM_VO_BindVpss failed!\n");goto END_VIRTUAL_6;} }sleep(1);/******************************************step 6: start jpege snap.*****************************************/VoDev &＃61; SAMPLE_VO_DEV_DHD0;VoLayer &＃61; SAMPLE_VO_LAYER_VHD0;enVoMode &＃61; VO_MODE_1MUX; //单分屏
#ifdef HI_FPGAstVoPubAttr.enIntfSync &＃61; VO_OUTPUT_1080P30;stVoPubAttr.enIntfType &＃61; VO_INTF_VGA;
#elsestVoPubAttr.enIntfSync &＃61; VO_OUTPUT_3840x2160_30;stVoPubAttr.enIntfType &＃61; VO_INTF_HDMI;
#endif stVoPubAttr.u32BgColor &＃61; 0x0;s32Ret &＃61; SAMPLE_COMM_VO_StartDev(VoDev, &stVoPubAttr); if (HI_SUCCESS !&＃61; s32Ret){SAMPLE_PRT("SAMPLE_COMM_VO_StartDev failed!\n");goto END_VIRTUAL_4;}
#ifndef HI_FPGAif (HI_SUCCESS !&＃61; SAMPLE_COMM_VO_HdmiStart(stVoPubAttr.enIntfSync)){SAMPLE_PRT("Start SAMPLE_COMM_VO_HdmiStart failed!\n");goto END_VIRTUAL_5;}
#endif/**************start Layer****************************/ stLayerAttr.bClusterMode &＃61; HI_FALSE;stLayerAttr.bDoubleFrame &＃61; HI_FALSE;stLayerAttr.enPixFormat &＃61; SAMPLE_PIXEL_FORMAT; s32Ret &＃61; SAMPLE_COMM_VO_GetWH(stVoPubAttr.enIntfSync, \&stLayerAttr.stDispRect.u32Width, &stLayerAttr.stDispRect.u32Height, &stLayerAttr.u32DispFrmRt);if (s32Ret !&＃61; HI_SUCCESS){SAMPLE_PRT("failed with %#x!\n", s32Ret);goto END_VIRTUAL_5;}stLayerAttr.stImageSize.u32Width &＃61; stLayerAttr.stDispRect.u32Width;stLayerAttr.stImageSize.u32Height &＃61; stLayerAttr.stDispRect.u32Height;s32Ret &＃61; SAMPLE_COMM_VO_StartLayer(VoLayer, &stLayerAttr); if (HI_SUCCESS !&＃61; s32Ret){SAMPLE_PRT("SAMPLE_COMM_VO_StartLayer failed!\n");goto END_VIRTUAL_6;} /**************start Chn****************************/ s32Ret &＃61; SAMPLE_COMM_VO_StartChn(VoLayer,enVoMode); if (s32Ret !&＃61; HI_SUCCESS){SAMPLE_PRT("failed with %#x!\n", s32Ret);goto END_VIRTUAL_6;} SAMPLE_COMM_Vpss_BindVO(SAMPLE_VO_LAYER_VIRT0,0,4,0);/**************vo bind to vpss****************************/s32Ret &＃61; SAMPLE_COMM_VO_BindVpss(VoLayer, 0, 4, 0);s32Ret &＃61; SAMPLE_COMM_VO_BindVpss(VoLayer, 6, 5, 0);i &＃61; 0;while(1){printf("\tpress &＃39;q&＃39; to exit this sample.\n");printf("\tpress &＃39;s&＃39; to snap one picture\n");ch &＃61; getchar();if (10 &＃61;&＃61; ch){continue;}getchar(); if (&＃39;q&＃39; &＃61;&＃61; ch){break;}else if(&＃39;s&＃39; &＃61;&＃61; ch){if(i > 15) //0~15&＃xff0c;16个窗口goto END_VIRTUAL_1;x &＃61; 200&＃43;i*20; //通过X轴坐标定位窗口位置SAMPLE_COMM_VO_SetChn(SAMPLE_VO_LAYER_VIRT0,i,x,x);i&＃43;&＃43;;usleep(10);}else{SAMPLE_PRT("the input is invaild! please try again.\n");continue;}}/******************************************step 9: exit process******************************************/
END_VIRTUAL_7: SAMPLE_COMM_VO_SnapStop(VeJpegChn);END_VIRTUAL_6:VoLayer &＃61; SAMPLE_VO_LAYER_VIRT0;enVoMode &＃61; VO_MODE_4MUX; SAMPLE_COMM_VO_StopChn(VoLayer,enVoMode); SAMPLE_COMM_VO_StopLayer(VoLayer);u32WndNum &＃61; 4; for(i &＃61; 0;i < u32WndNum;i&＃43;&＃43;){SAMPLE_COMM_VO_UnBindVpss(VoLayer,i,i,VPSS_CHN0);}END_VIRTUAL_5: VoDev &＃61; SAMPLE_VO_DEV_VIRT0; SAMPLE_COMM_VO_StopDev(VoDev); END_VIRTUAL_4: for(i &＃61; 0;i < VdChn;i&＃43;&＃43;){SAMPLE_COMM_VDEC_UnBindVpss(i,i);}END_VIRTUAL_3: SAMPLE_COMM_VPSS_Stop(s32VpssGrpCnt, VPSS_MAX_CHN_NUM);END_VIRTUAL_2:SAMPLE_COMM_VDEC_Stop(VdChn); SAMPLE_COMM_VDEC_StopSendStream(VdChn, &stVdecSend[0], &VdecThread[0]);END_VIRTUAL_1:SAMPLE_COMM_SYS_Exit();return s32Ret;
}


完整代码与编译生成文件&＃xff1a;https://download.csdn.net/download/weixin_43793181/19037437