我是靠谱客的博主 怡然小蝴蝶,最近开发中收集的这篇文章主要介绍海思媒体处理平台VI视频输入模块海思媒体处理平台VI视频输入模块,觉得挺不错的,现在分享给大家,希望可以做个参考。

概述

海思媒体处理平台VI视频输入模块

[Hi3516A||Vi视频输入||海思媒体处理平台]

文章目录

  • 海思媒体处理平台VI视频输入模块
    • VI模块的概念
    • VI模块的功能、作用、内部单元工作流程
      • 硬件单元功能框图
      • VI内部单元工作流程
      • VIU视频采集单元
    • 参阅Api实现VI
      • main.c
      • My_Head.h
      • Makefile
    • 通过其他设置接口增加功能


VI模块的概念

Vi是海思媒体处理平台的视频输入模块,负责捕获视频图像,可对其进行剪切、缩放等处理,并输出多路不同分辨率的图像数据.

VI模块的功能、作用、内部单元工作流程

硬件单元功能框图

Hi3516A/Hi3518EV200/Hi3519V200 VI硬件单元功能框图.

Alt text

VI可通过ITU-R BT656/601/1120 接口或 Digital Camera接口、 MIPI Rx(含 MIPI 接口、 LVDS 接口和 HISPI 接口)接收视频数据。
Vi还可以对接收到的原始视频图像数据进行裁剪(Crop)等处理,并实现一路原始视频图像输入,输出一路视频图像功能.

我们使用的是海思样例的SENSOR类型PANASONIC_MN34220_SUBLVDS_1080P_30FPS(传感器为松下的MN34220,采用SubLVDS的信号传输技术,使用1080P的分辨率,30帧率).

__MIPI__和__LVDS__的概念:
MIPI:移动产业处理器接口(Mobile Industry Processor Interface 简称MIPI)是为移动应用处理器制定的开放标准和一个规范。
LVDS:Low Voltage Differential Signaling,是一种低压差分信号技术接口。它是为克服以TTL电平方式传输宽带高码率数据时功耗大、EMI电磁干扰大等缺点而研制的一种数字视频信号传输方式,SubLVDS则是LVDS的发展.

VI内部单元工作流程

摄像机通过镜头(lens)聚焦光线,将光信号投射到 sensor 的感光区域,sensor经过光电转换,将 Bayer 格式的原始图像送给 ISP(Image Signal Processing 图像信号处理) 经过算法处理,输出 RGB 空间域的图像给后端的视频采集单元。在这个过程中,ISP 通过运行在其上的 firmware 对 lens 和 sensor 进行相应控制,进而完成自动光圈、自动曝光、自动白平衡等功能。其中,firmware 的运转靠视频采集单元的中断驱动。

ISP控制结构:

Alt text

VIU视频采集单元

VIU视频采集单元负责接收ISP传过来的视频图像,经过视频输入设备Dev0的加工,通过物理通道Chn0发送给接收者,也可通过扩展通道,进行缩放后发送出去.

视频输入设备Dev0:
Hi3516A/Hi3518EV200/Hi3519V100 芯片只有一个 VI 设备,即 Dev0。 Dev0 支持BT.656、 BT.601、 DC、 MIPI Rx(MIPI、 LVDS、 HISPI 接口)输入。 Dev0 不支持非连续 pixel clock 时序。

视频物理通道Chn0:
Hi3516A/Hi3518EV200/Hi3519V100 VI 硬件单元仅包含 1 个 VI 视频物理通道,即Chn0。不存在次通道,但支持扩展通道。

视频扩展通道ext_ChnN:
扩展通道是物理通道的扩展,主要实现缩放功能,其数据来源于物理通道,Hi3516A/Hi3518EV200/Hi3519V100 最多支持 16 个扩展通道。

参阅Api实现VI

下面程序是初始化Vi后直接绑定Vi到Venc编码的例子,没有写清理工作,已测试可以运行,可供参考.

main.c

#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <signal.h>
#include <pthread.h>
#include <string.h>
#include <fcntl.h>

#include "My_Head.h"

static pthread_t gs_IspPid;
static HI_S32 gs_s32SnapCnt = 0;

HI_VOID WB_VENC_HandleSig(HI_S32 signo)
{
	if(SIGINT == signo || SIGTERM == signo)
	{
		LOG_D("Interrupt Happen! exitn");
	}
	exit(HI_FAILURE);
}

HI_S32 WB_MPI_SYS_Init()
{
	LOG_D("******************************************n");
    LOG_D("step 1: Mpi System Initn");
 	LOG_D("******************************************n");
	HI_S32 s32Ret;
	VB_CONF_S struVbConf;
	MPP_SYS_CONF_S struSysConf = {0};

	memset(&struVbConf, 0, sizeof(VB_CONF_S));
	//memcpy(&struVbConf, &VB_SYS_CONF_BASE, sizeof(struVbConf));
	struVbConf.u32MaxPoolCnt = 128;
	struVbConf.astCommPool[0].u32BlkSize = 3159360;
	struVbConf.astCommPool[0].u32BlkCnt = 12;

	HI_MPI_SYS_Exit();
    HI_MPI_VB_Exit();

	s32Ret = HI_MPI_VB_SetConf(&struVbConf);
	if(HI_SUCCESS != s32Ret)
	{
		LOG_E("SetConf failed!n");
		return s32Ret;
	}

	s32Ret = HI_MPI_VB_Init();
	if(HI_SUCCESS != s32Ret)
	{
		LOG_E("Vb Init failed!n");
		return s32Ret;
	}

	struSysConf.u32AlignWidth = 64;
	/*set config of mpp system*/
	s32Ret = HI_MPI_SYS_SetConf(&struSysConf);
	if(HI_SUCCESS != s32Ret)
	{
		LOG_E("Set mpp sys config failed!n");
		return s32Ret;
	}

	/*init system*/
	s32Ret = HI_MPI_SYS_Init();
	if(HI_SUCCESS != s32Ret)
	{
		LOG_E("Mpi sys init failed!n");	
		return s32Ret;
	}

	LOG_D("******************************************n");
    LOG_D("Mpi Sys Init Successn");
 	LOG_D("******************************************n");

	return HI_SUCCESS;
	/**/
}

HI_S32 WB_MIPI_Init()
{
	HI_S32 fd;
	combo_dev_attr_t* pstcomboDevAttr = NULL;
	fd = open("/dev/hi_mipi", O_RDWR);
	if( fd < 0)
	{
		LOG_W("open hi_mipi dev failedn");
		return -1;
	}

	pstcomboDevAttr = &SUBLVDS_4lane_SENSOR_MN34220_12BIT_1080_NOWDR_ATTR;
	
	if (ioctl(fd, _IOW(HI_MIPI_IOC_MAGIC, 0x01, combo_dev_attr_t), pstcomboDevAttr))	
	{
		LOG_E("set mipi attr failedn");
		close(fd);
		return HI_FAILURE;
	}
	close(fd);
	return HI_SUCCESS;
}

HI_S32 WB_Mpp_Vi_Init(HI_VOID)
{
	LOG_D("******************************************n");
    LOG_D("step 2: Init vi dev and chn to capturen");
 	LOG_D("******************************************n");
	HI_S32 s32Ret;
	VI_DEV ViDev = 0;
	VI_CHN ViChn = 0;
	VI_DEV_ATTR_S stViDevAttr;
	VI_CHN_ATTR_S stChnAttr;
    ISP_WDR_MODE_S stWdrMode;

    memset(&stViDevAttr, 0, sizeof(stViDevAttr));
    memcpy(&stViDevAttr, &DEV_ATTR_LVDS_BASE, sizeof(stViDevAttr));
    stViDevAttr.stDevRect.s32X = 0;
    stViDevAttr.stDevRect.s32Y = 20;
    stViDevAttr.stDevRect.u32Width  = 1920;
    stViDevAttr.stDevRect.u32Height = 1080;
/*
	LOG_D("----%dn",stViDevAttr.enIntfMode);
    LOG_D("----%dn",stViDevAttr.enWorkMode);
    LOG_D("----%dn",stViDevAttr.au32CompMask[0]);
    LOG_D("----%dn",stViDevAttr.au32CompMask[1]);
    LOG_D("----%dn",stViDevAttr.enScanMode);
    LOG_D("----%dn",stViDevAttr.enDataSeq);
    LOG_D("----%dn",stViDevAttr.enDataPath);
    LOG_D("----%dn",stViDevAttr.enInputDataType);
    LOG_D("----%dn",stViDevAttr.stDevRect.s32X);
    LOG_D("----%dn",stViDevAttr.stDevRect.s32Y);
    LOG_D("----%dn",stViDevAttr.stDevRect.u32Width);
    LOG_D("----%dn",stViDevAttr.stDevRect.u32Height);
    LOG_D("----%dn",stViDevAttr.bDataRev);
*/	
	s32Ret = HI_MPI_VI_SetDevAttr(ViDev, &stViDevAttr);
	if (s32Ret != HI_SUCCESS)
	{
	LOG_E("Set dev attributes failed with error code %#x!n", s32Ret);
	return HI_FAILURE;
	}

    s32Ret = HI_MPI_ISP_GetWDRMode(0, &stWdrMode);
    if (s32Ret != HI_SUCCESS)
    {
        LOG_E("HI_MPI_ISP_GetWDRMode failed with %#x!n", s32Ret);
        return HI_FAILURE;
    }

    if (stWdrMode.enWDRMode)  //wdr mode
    {
        VI_WDR_ATTR_S stWdrAttr;

        stWdrAttr.enWDRMode = stWdrMode.enWDRMode;
        stWdrAttr.bCompress = HI_FALSE;

        s32Ret = HI_MPI_VI_SetWDRAttr(0, &stWdrAttr);
        if (s32Ret)
        {
            LOG_E("HI_MPI_VI_SetWDRAttr failed with %#x!n", s32Ret);
            return HI_FAILURE;
        }
    }

	s32Ret = HI_MPI_VI_EnableDev(ViDev);
	if (s32Ret != HI_SUCCESS)
	{
	LOG_E("Enable dev failed with error code %#x!n", s32Ret);
	return HI_FAILURE;
	}

	stChnAttr.stCapRect.s32X = 0;
	stChnAttr.stCapRect.s32Y = 0;
	stChnAttr.stCapRect.u32Width = 1920;
	stChnAttr.stCapRect.u32Height = 1080;
	stChnAttr.stDestSize.u32Width = 1920;
	stChnAttr.stDestSize.u32Height = 1080;
	stChnAttr.enCapSel = VI_CAPSEL_BOTH;
	stChnAttr.enPixFormat = PIXEL_FORMAT_YUV_SEMIPLANAR_420;
	stChnAttr.bMirror = HI_FALSE;
	stChnAttr.bFlip = HI_FALSE;
	stChnAttr.s32SrcFrameRate = -1;
	stChnAttr.s32DstFrameRate = -1;
	stChnAttr.enCompressMode = COMPRESS_MODE_NONE;

/*
	LOG_D("----%dn",stChnAttr.stCapRect.s32X);
    LOG_D("----%dn",stChnAttr.stCapRect.s32Y);
    LOG_D("----%dn",stChnAttr.stCapRect.u32Width);
    LOG_D("----%dn",stChnAttr.stCapRect.u32Height);
    LOG_D("----%dn",stChnAttr.stDestSize.u32Width );
    LOG_D("----%dn",stChnAttr.stDestSize.u32Height );
    LOG_D("----%dn",stChnAttr.enCapSel);
    LOG_D("----%dn",stChnAttr.enPixFormat);
    LOG_D("----%dn",stChnAttr.bMirror);
    LOG_D("----%dn",stChnAttr.bFlip);
    LOG_D("----%dn",stChnAttr.s32SrcFrameRate);
    LOG_D("----%dn",stChnAttr.s32DstFrameRate);
    LOG_D("----%dn",stChnAttr. enCompressMode);
*/
	s32Ret = HI_MPI_VI_SetChnAttr(ViChn,&stChnAttr);
	if (s32Ret != HI_SUCCESS)
	{
	LOG_E("Set chn attributes failed with error code %#x!n", s32Ret);
	return HI_FAILURE;
	}

	s32Ret = HI_MPI_VI_EnableChn(ViChn);
	if (s32Ret != HI_SUCCESS)
	{
	LOG_E("Enable chn failed with error code %#x!n", s32Ret);
	return HI_FAILURE;
	}

	LOG_D("******************************************n");
    LOG_D("now, vi is capturing imagesn");
 	LOG_D("******************************************n");

 	return HI_SUCCESS;
 	/* now, vi is capturing images, you can do something else ... */
	/*s32Ret = HI_MPI_VI_DisableChn(ViChn);
	if (s32Ret != HI_SUCCESS)
	{
	LOG_D("Disable chn failed with error code %#x!n", s32Ret);
	return HI_FAILURE;
	}
	s32Ret = HI_MPI_VI_DisableDev(ViDev);
	if (s32Ret != HI_SUCCESS)
	{
	LOG_D("Disable dev failed with error code %#x!n", s32Ret);
	return HI_FAILURE;
	}*/

}

HI_S32 WB_MPI_VENC_Init()
{

	LOG_D("******************************************n");
    LOG_D("step 3:  Create Venc Chnn");
 	LOG_D("******************************************n");

	HI_S32 s32Ret;
	VI_CHN ViChn = 0;
	VENC_CHN VencChn = 0;
	VENC_ATTR_JPEG_S stJpegAttr;	

	VENC_CHN_ATTR_S stVencChnAttr;
	MPP_CHN_S stSrcChn, stDestChn;

	stVencChnAttr.stVeAttr.enType = PT_JPEG;
	stJpegAttr.u32PicWidth = 1920;
	stJpegAttr.u32PicHeight = 1080;
	stJpegAttr.u32MaxPicWidth = 1920;
	stJpegAttr.u32MaxPicHeight = 1080;
	stJpegAttr.u32BufSize = 1920*1080*2;
	stJpegAttr.bByFrame = HI_TRUE;
	stJpegAttr.bSupportDCF = HI_FALSE;
	memcpy(&stVencChnAttr.stVeAttr.stAttrJpeg, &stJpegAttr, sizeof(VENC_ATTR_JPEG_S));

	s32Ret = HI_MPI_VENC_CreateChn(VencChn, &stVencChnAttr);
	if(HI_SUCCESS != s32Ret)
	{
		LOG_E("Hi Mpi Venc CreateChn Failed with %#x!n", s32Ret);
		return s32Ret;
	}

	LOG_D("******************************************n");
    LOG_D("step 4:  Start Recv Venc Picturesn");
 	LOG_D("******************************************n");

 	//s32Ret = HI_MPI_VENC_StartRecvPic(VencChn);
 	//if(HI_SUCCESS != s32Ret)
 	//{
 	//	LOG_E("Hi Mpi Venc Start Recv Failed with %#x!n", s32Ret);
	//	return s32Ret;
 	//}

 	stSrcChn.enModId = HI_ID_VIU;
 	stSrcChn.s32DevId = 0;
 	stSrcChn.s32ChnId = ViChn;

 	stDestChn.enModId = HI_ID_VENC;
 	stDestChn.s32DevId = 0;
 	stDestChn.s32ChnId = 0;

 	s32Ret = HI_MPI_SYS_Bind(&stSrcChn, &stDestChn);

	return HI_SUCCESS;
}

HI_S32 WB_VENC_SaveJpeg(FILE* pFile, VENC_STREAM_S* pstVencStream)
{
	VENC_PACK_S* pstData;
	HI_U32 i;

	for(i = 0; i < pstVencStream->u32PackCount; i++)
	{
		pstData = &pstVencStream->pstPack[i];
		fwrite(pstData->pu8Addr + pstData->u32Offset, pstData->u32Len - pstData->u32Offset, 1, pFile);
		fflush(pFile);
	}

	return HI_SUCCESS;
}

HI_S32 WB_Venc_SaveSnap(VENC_STREAM_S* pstVencStream)
{
	char acFile[FILE_NAME_LEN] = {0};
	FILE* pFile;
	HI_S32 s32Ret;

	snprintf(acFile, FILE_NAME_LEN, "Mysnap.jpg" );
	pFile = fopen(acFile, "wb");
	if(pFile == NULL)
	{
		LOG_E("open file error");
		return HI_FAILURE;
	}
	s32Ret = WB_VENC_SaveJpeg(pFile, pstVencStream);
	if(HI_SUCCESS != s32Ret)
	{
		LOG_E("save snap picture failed!n");
		return HI_FAILURE;
	}
	fclose(pFile);
	gs_s32SnapCnt++;
	return HI_SUCCESS;

}

HI_S32 WB_VENC_GetVencSnapProc(VENC_CHN VencChn)
{
	LOG_D("******************************************n");
    LOG_D("step 5:  Get Venc Snap Startn");
 	LOG_D("******************************************n");
 	sleep(2);

	HI_S32 s32Ret;
	//HI_S32 s32Cnt = 0;
	HI_S32 s32VencFd;
	fd_set read_fds;
	struct timeval timeout;
	VENC_STREAM_S stVencStream;
	VENC_CHN_STAT_S stVencChnStat;
	VENC_RECV_PIC_PARAM_S stRecvParam;

	//HI_CHAR aszFileName[VENC_MAX_CHN_NUM][64];
	//char szFilePostfix[10];

    stRecvParam.s32RecvPicNum = 1;
    s32Ret = HI_MPI_VENC_StartRecvPicEx(VencChn, &stRecvParam);
    if(HI_SUCCESS != s32Ret)
    {
    	LOG_E("HI_MPI_VENC_StartRecvPic faild with%#x!n", s32Ret);
    }

	s32VencFd = HI_MPI_VENC_GetFd(VencChn);
	if(s32VencFd < 0)
	{
		LOG_E("HI_MPI Venc GetFd failed with %#x!n", s32VencFd);
		return -1;
	}

	FD_ZERO(&read_fds);
	FD_SET(s32VencFd, &read_fds);

	timeout.tv_sec = 2;
	timeout.tv_usec = 0;

	LOG_D(" Venc GetFd is %dn", s32VencFd);
	s32Ret = select(s32VencFd +1, &read_fds, NULL, NULL, &timeout);
	if(s32Ret < 0)
	{
		LOG_E("snap select failed!n");
	}
	else if (s32Ret == 0)
	{
		LOG_E("Get Venc Stream time out !n");
 		return s32Ret;
	}
	else
	{	
		if(FD_ISSET(s32VencFd, &read_fds))
		{
			s32Ret = HI_MPI_VENC_Query(VencChn, &stVencChnStat);
			if(HI_SUCCESS != s32Ret)
			{
			LOG_E("Mpi Venc Query failed with %#x!n", s32Ret);
			return s32Ret;
			}

			if(0 == stVencChnStat.u32CurPacks)
			{
				LOG_E("NOTE: Current Frame is NULL!n");
				return HI_SUCCESS;
			}

			stVencStream.pstPack = (VENC_PACK_S* )malloc(sizeof(VENC_PACK_S) * stVencChnStat.u32CurPacks);
			if(NULL == stVencStream.pstPack)
			{
				LOG_E("malloc memory failed!n");
				return s32Ret;
			}

			stVencStream.u32PackCount = stVencChnStat.u32CurPacks;
			s32Ret = HI_MPI_VENC_GetStream(VencChn, &stVencStream, -1);
			if(HI_SUCCESS != s32Ret)
			{
				LOG_E("Hi Mpi Venc GetStream failed with %#x!n", s32Ret);
				free(stVencStream.pstPack);
				stVencStream.pstPack = NULL;
				return s32Ret;
			}

			s32Ret = WB_Venc_SaveSnap(&stVencStream);
			if(HI_SUCCESS != s32Ret)
			{
				LOG_E("Venc SaveSnap failed with %#x!n", s32Ret);
				free(stVencStream.pstPack);
				stVencStream.pstPack = NULL;
				return s32Ret;
			}

			s32Ret = HI_MPI_VENC_ReleaseStream(VencChn, &stVencStream);
			if(s32Ret)
			{
				LOG_E("Release Stream failed with %#x!n",s32Ret);
				free(stVencStream.pstPack);
				stVencStream.pstPack = NULL;
				return s32Ret;
			}
			free(stVencStream.pstPack);
			stVencStream.pstPack = NULL;
		}
	}

    s32Ret = HI_MPI_VENC_StopRecvPic(VencChn);

    if (s32Ret != HI_SUCCESS)
    {
        LOG_E("MPI VENC StopRecvPic failed with %#x!n",  s32Ret);
        return s32Ret;
    }


    return HI_SUCCESS;
}

void* WB_Isp_Run_Proc(void* arg)
{
	ISP_DEV IspDev = 0;
	HI_MPI_ISP_Run(IspDev);
	return HI_NULL;
}

HI_S32 WB_VENC_ISP_Init()
{
	ISP_DEV IspDev = 0;
	HI_S32 s32Ret;
	ISP_PUB_ATTR_S stPubAttr;
	ALG_LIB_S stLib;

	s32Ret = sensor_set_inifile_path("configs/");
	if(s32Ret != HI_SUCCESS)
	{
		LOG_E("set cmos iniparser file path failed with %#x!n", s32Ret);
		return s32Ret;
	}

	s32Ret = sensor_register_callback();
	if(s32Ret != HI_SUCCESS)
	{
		LOG_E("sensor_register_callback failed with %#x!n", s32Ret);
		return s32Ret;
	}

	stLib.s32Id = 0;
	strcpy(stLib.acLibName, HI_AE_LIB_NAME);
	s32Ret = HI_MPI_AE_Register(IspDev, &stLib);
	if(s32Ret != HI_SUCCESS)
	{
		LOG_E("HI_MPI_AE_Register failed!n");
		return s32Ret;
	}

	stLib.s32Id = 0;
	strcpy(stLib.acLibName, HI_AWB_LIB_NAME);
	s32Ret = HI_MPI_AWB_Register(IspDev, &stLib);
	if(s32Ret != HI_SUCCESS)
	{
		LOG_E("HI_MPI_AWB Register failed!n");
		return s32Ret;
	}

	stLib.s32Id = 0;
    strcpy(stLib.acLibName, HI_AF_LIB_NAME);
    s32Ret = HI_MPI_AF_Register(IspDev, &stLib);
    if (s32Ret != HI_SUCCESS)
    {
		LOG_E("HI_MPI_AF Register failed!n");
        return s32Ret;
    }

	s32Ret = HI_MPI_ISP_MemInit(IspDev);
	if(s32Ret != HI_SUCCESS)
	{
		LOG_E("HI Mpi Isp Init failed!n");
		return s32Ret;
	}

	ISP_WDR_MODE_S stWdrMode;
	stWdrMode.enWDRMode = WDR_MODE_NONE;
	s32Ret = HI_MPI_ISP_SetWDRMode(0, &stWdrMode);
	if(HI_SUCCESS != s32Ret)
	{
		LOG_E("start ISP WDR failed!n");
		return s32Ret;
	}

	switch(SENSOR_TYPE)
	{
		case APTINA_9M034_DC_720P_30FPS:
		LOG_E("Wrong Sensor Typen");
		break;

		case PANASONIC_MN34220_SUBLVDS_1080P_30FPS:
		stPubAttr.enBayer				= BAYER_GRBG;
		stPubAttr.f32FrameRate			= 30;
		stPubAttr.stWndRect.s32X		= 0;
		stPubAttr.stWndRect.s32Y		= 0;
		stPubAttr.stWndRect.u32Width	= 1920;
		stPubAttr.stWndRect.u32Height 	= 1080;
		break;
	}

	s32Ret = HI_MPI_ISP_SetPubAttr(IspDev, &stPubAttr);
	if(s32Ret != HI_SUCCESS)
	{
		LOG_E("Mpi Isp SetPubAttr failed with %#x!n", s32Ret);
		return s32Ret;
	}
	s32Ret = HI_MPI_ISP_Init(IspDev);
	if(s32Ret != HI_SUCCESS)
	{
		LOG_E("Mpi ISP Init failed!n");
	}

	if( 0 != pthread_create(&gs_IspPid, 0, (void * (*)(void *))WB_Isp_Run_Proc, NULL))
	{
		LOG_E("Create Isp Run thread failed!n");
		return HI_FAILURE;
	}

	return HI_SUCCESS;

}


int main(int argc,char *argv[])
{
	HI_S32 s32Ret;

	signal(SIGINT, WB_VENC_HandleSig);
	signal(SIGTERM, WB_VENC_HandleSig);

	s32Ret = WB_MPI_SYS_Init();
	if(HI_SUCCESS != s32Ret)
	{
		LOG_E("Mpi sys init failed!n");
		exit(-1);
	}

	LOG_D("******************************************n");
    LOG_D("step 1~2:  WB_MIPI_Init startn");
 	LOG_D("******************************************n");
	
	s32Ret = WB_MIPI_Init();
	if(HI_SUCCESS != s32Ret)
	{
		LOG_E("MIPI init failed!n");
		exit(-1);
	}

	LOG_D("******************************************n");
    LOG_D("step 1~2:  WB_ISP_Init startn");
 	LOG_D("******************************************n");
	s32Ret = WB_VENC_ISP_Init();
	if(HI_SUCCESS != s32Ret)
	{
		LOG_E("ISP init failed!n");
		exit(-1);
	}

	s32Ret = WB_Mpp_Vi_Init();
	if(HI_SUCCESS != s32Ret)
	{
		LOG_E("Mpi vi init failed!n");
		exit(-1);
	}

	s32Ret = WB_MPI_VENC_Init();
	if(HI_SUCCESS != s32Ret)
	{
		LOG_E("Mpi venc init failed!n");
		exit(-1);
	}

 	s32Ret = WB_VENC_GetVencSnapProc(0);
 	if(s32Ret != HI_SUCCESS)
 	{
 		LOG_E("GetVencSnapProc is Failed!n");
 		return HI_FAILURE;
 	}

	getchar();

	exit(s32Ret);
}

My_Head.h

//#include <sys/time.h>

#include "hi_comm_venc.h"
#include "hi_type.h"
#include "hi_comm_vi.h"
#include "hi_comm_video.h"
#include "hi_comm_vb.h"
#include "hi_comm_sys.h"
#include "hi_mipi.h"
#include "hi_comm_3a.h"
#include "hi_comm_isp.h"
#include "hi_ae_comm.h"
#include "hi_sns_ctrl.h"
#include "hi_af_comm.h"
#include "hi_awb_comm.h"

#include "mpi_venc.h"
#include "mpi_sys.h"
#include "mpi_isp.h"
#include "mpi_af.h"
#include "mpi_vb.h"
#include "mpi_vi.h"
#include "mpi_ae.h"
#include "mpi_awb.h"

#include "sys/ioctl.h"

#define FILE_NAME_LEN 128

#define TRUE 1
#define FALSE 0

#define TAG "TEST"
#define DEBUG TRUE

/*
#define TIMEPRINT 
	do{
	struct timeval now;
	struct tm* ptime = NULL;
	suseconds_t mstime;
	
	gettimeofday(&now, NULL);
	ptime = gmtime(&now.tv_sec);
	mstime = now.tv_usec/10000;
	
	printf("%d-%d-%d-%d-%d-%d:%02d  ", 1900 + ptime->tm_year, 1 + ptime->tm_mon, ptime->tm_mday, ptime->tm_hour, ptime->tm_min, ptime->tm_sec, mstime);
	}while(0)
*/

#define TIMEPRINT 

#if DEBUG
#define LOG_D(...) 
		do{
			TIMEPRINT
			printf("D/%s ",TAG);
			printf("(%s, %d): ", __FILE__,__LINE__);
			printf(__VA_ARGS__);
		}while(0)
#else
#define LOG_D(...) printf(__VA_ARGS__)
#endif

#if DEBUG
#define LOG_W(...) 
		do{
			TIMEPRINT
			printf("W/%s ",TAG);
			printf("(%s, %d): ", __FILE__,__LINE__);
			printf(__VA_ARGS__);
		}while(0)
#else
#define LOG_W(...) printf(__VA_ARGS__)
#endif

#if DEBUG
#define LOG_E(...) 
		do{
			TIMEPRINT
			printf("E/%s ",TAG);
			printf("(%s, %d): ", __FILE__,__LINE__);
			printf(__VA_ARGS__);
		}while(0)
#else
#define LOG_E(...) printf(__VA_ARGS__)
#endif

#if DEBUG
#define LOG_B(...) 
		do{
			TIMEPRINT
			printf("B/%s ",TAG);
			printf("(%s, %d):", __FILE__,__LINE__);
			printf(__VA_ARGS__);
			getchar();
		}while(0)
#else
#define LOG_B(...)  
		do{
			printf("Break Here!n");
			printf(__VA_ARGS__);
			getchar();
		}while(0)
#endif

typedef enum wb_vi_mode_e
{
    APTINA_AR0130_DC_720P_30FPS = 0,
    APTINA_9M034_DC_720P_30FPS,
    SAMPLE_VI_MODE_1_D1,
    SAMPLE_VI_MODE_BT1120_1080I,
    SAMPLE_VI_MODE_BT1120_720P,
    SAMPLE_VI_MODE_BT1120_1080P,
    PANASONIC_MN34220_SUBLVDS_1080P_30FPS,
    PANASONIC_MN34220_SUBLVDS_720P_120FPS,
    SONY_IMX178_LVDS_1080P_30FPS,
    SONY_IMX185_MIPI_1080P_30FPS,
    PANASONIC_MN34220_MIPI_1080P_30FPS,
    PANASONIC_MN34220_MIPI_720P_120FPS,
    SONY_IMX178_LVDS_5M_30FPS,
    SONY_IMX117_LVDS_1080P_30FPS,
    SONY_IMX117_LVDS_720P_30FPS,
    SONY_IMX123_LVDS_QXGA_30FPS,
    APTINA_AR0230_HISPI_1080P_30FPS,
    APTINA_AR0237_HISPI_1080P_30FPS,
    APTINA_AR0330_MIPI_1080P_30FPS,
    APTINA_AR0330_MIPI_1536P_25FPS,
    APTINA_AR0330_MIPI_1296P_25FPS,
    OMNIVISION_OV4689_MIPI_4M_30FPS,
    OMNIVISION_OV4689_MIPI_1080P_30FPS,
    OMNIVISION_OV5658_MIPI_5M_30FPS,
}Vi_Mode_E;

typedef struct VENC_GETSTREAMPARA_S
{
	HI_BOOL bTreadStart;
	HI_S32 s32Cnt;
}Venc_GetStreamPara_S;

VI_DEV_ATTR_S DEV_ATTR_LVDS_BASE =
{
    /* interface mode */
    VI_MODE_LVDS,
    /* multiplex mode */
    VI_WORK_MODE_1Multiplex,
    /* r_mask    g_mask    b_mask*/
    {0xFFF00000,    0x0},
    /* progessive or interleaving */
    VI_SCAN_PROGRESSIVE,
    /*AdChnId*/
    { -1, -1, -1, -1},
    /*enDataSeq, only support yuv*/
    VI_INPUT_DATA_YUYV,

    /* synchronization information */
    {
        /*port_vsync   port_vsync_neg     port_hsync        port_hsync_neg        */
        VI_VSYNC_PULSE, VI_VSYNC_NEG_LOW, VI_HSYNC_VALID_SINGNAL, VI_HSYNC_NEG_HIGH, VI_VSYNC_VALID_SINGAL, VI_VSYNC_VALID_NEG_HIGH,

        /*hsync_hfb    hsync_act    hsync_hhb*/
        {
            0,            1280,        0,
            /*vsync0_vhb vsync0_act vsync0_hhb*/
            0,            720,        0,
            /*vsync1_vhb vsync1_act vsync1_hhb*/
            0,            0,            0
        }
    },
    /* use interior ISP */
    VI_PATH_ISP,
    /* input data type */
    VI_DATA_TYPE_RGB,
    /* bRever */
    HI_FALSE,
    /* DEV CROP */
    {0, 0, 1920, 1080}
};

//VB_CONF_S VB_SYS_CONF_BASE =
//{
	/*Max Pool count*/
//	128,
	/*Vb Pool Stru*/
//	{
		/*BlkSize*/ 
//		3159360,
		/* BlkCnt  */
//		20
		/*acMmzName*/
//	}
//};

combo_dev_attr_t MIPI_4lane_SENSOR_MN34220_MIPI_12BIT_ATTR =
{
    .input_mode = INPUT_MODE_MIPI,
    {
        .mipi_attr =
        {
            RAW_DATA_12BIT,
            {0, 1, 2, 3, -1, -1, -1, -1}
        }
    }

};

combo_dev_attr_t SUBLVDS_4lane_SENSOR_MN34220_12BIT_1080_NOWDR_ATTR =
{
    /* input mode */
    .input_mode = INPUT_MODE_SUBLVDS,

    {
        .lvds_attr = {
            .img_size = {1920, 1080},
            HI_WDR_MODE_NONE,
            LVDS_SYNC_MODE_SOL,
            RAW_DATA_12BIT,
            LVDS_ENDIAN_BIG,
            LVDS_ENDIAN_BIG,
            .lane_id = {0, 2, -1, -1, 1, 3, -1, -1},
            .sync_code =  {
                {   {0x002, 0x003, 0x000, 0x001}, //PHY0_lane0
                    {0x202, 0x203, 0x200, 0x201},
                    {0x102, 0x103, 0x100, 0x101},
                    {0x302, 0x303, 0x300, 0x301}
                },

                {   {0x006, 0x007, 0x004, 0x005}, //PHY0_lane1
                    {0x206, 0x207, 0x204, 0x205},
                    {0x106, 0x107, 0x104, 0x105},
                    {0x306, 0x307, 0x304, 0x305}
                },

                {   {0x00a, 0x00b, 0x008, 0x009}, //PHY0_lane2
                    {0x20a, 0x20b, 0x208, 0x209},
                    {0x10a, 0x10b, 0x108, 0x109},
                    {0x30a, 0x30b, 0x308, 0x309}
                },

                {   {0x00a, 0x00b, 0x008, 0x009}, //PHY0_lane3  INPUT_MODE_LVDS
                    {0x20a, 0x20b, 0x208, 0x209},
                    {0x10a, 0x10b, 0x108, 0x109},
                    {0x30a, 0x30b, 0x308, 0x309}
                },

                {   {0x012, 0x013, 0x010, 0x011},//PHY1_lane0
                    {0x212, 0x213, 0x210, 0x211},
                    {0x112, 0x113, 0x110, 0x111},
                    {0x312, 0x313, 0x310, 0x311}
                },

                {   {0x016, 0x017, 0x014, 0x015}, //PHY1_lane1
                    {0x216, 0x217, 0x214, 0x215},
                    {0x116, 0x117, 0x114, 0x115},
                    {0x316, 0x317, 0x314, 0x315}
                },

                {   {0x01a, 0x01b, 0x018, 0x019}, //PHY1_lane2
                    {0x21a, 0x21b, 0x218, 0x219},
                    {0x11a, 0x11b, 0x118, 0x119},
                    {0x31a, 0x31b, 0x318, 0x319}
                },

                {   {0x01a, 0x01b, 0x018, 0x019}, //PHY1_lane3
                    {0x21a, 0x21b, 0x218, 0x219},
                    {0x11a, 0x11b, 0x118, 0x119},
                    {0x31a, 0x31b, 0x318, 0x319}
                }
            }
        }
    }
};

Makefile

#
#
#
#
SRC := $(wildcard *.c)
OBJ := $(SRC:%.c=%.o)
TARGET := sample
#CC :=gcc
CC := arm-hisiv300-linux-gcc

CFLAGS := -g -Wall -ldl -DSENSOR_TYPE=PANASONIC_MN34220_SUBLVDS_1080P_30FPS
CFLAGS += -I../include/
CFLAGS += -Dhi3516a -DHICHIP=0x3516A100 -DISP_V2 -DHI_MIPI_ENABLE -DHI_ACODEC_TYPE_INNER -mcpu=cortex-a7 -mfloat-abi=softfp -mfpu=neon-vfpv4 -ffunction-sections -mno-unaligned-access -fno-aggressive-loop-optimizations

MPILIB := ../lib/libmpi.a
ISPLIB := ../lib/libisp.a ../lib/lib_hiae.a
SENSORLIB := ../lib/libsns_mn34220.a 
AUDIO_LIBS :=../lib/libupvqe.a ../lib/libdnvqe.a ../lib/libVoiceEngine.a
OTHERLIB := ../lib/lib_hiawb.a ../lib/lib_hidefog.a ../lib/lib_hiaf.a

all: $(OBJ) $(TARGET)
$(TARGET):
	@echo "SRC is " $(SRC)
	@echo "OBJ is " $(OBJ)
	@echo "TARGET is " $(TARGET)
	$(CC) $(CFLAGS) $(OBJ) -lpthread -lm -o $(TARGET) $(ISPLIB) $(MPILIB) $(SENSORLIB) $(OTHERLIB) $(AUDIO_LIBS)

.PHONY: clean target
clean:
	rm -rf $(OBJ) $(TARGET)

target:
#@source /etc/profile
	rm -rf $(OBJ) $(TARGET)
	make 

测试: ./sample
这里写图片描述

通过其他设置接口增加功能

我们已经实现了最简化的VI视频采集了,接着可以在此基础上通过其他设置接口进行更复杂功能的设计如HI_MPI_VI_SetExtChnCrop()进行裁剪、HI_MPI_VI_SetLDCAttr()设置 VI 镜头畸变校正(LDC)属性、HI_MPI_VI_SetCSCAttr()调节图像的亮度、色调、对比度、饱和度等等。

至此本文关于海思VI模块的学习就结束了,学习中会遇到很多音视频方面的东西,像隔行扫描制式,YUV颜色图像编码方法等等,这些还没有做详细的解释,如果有机会再追加写一篇关于这些音视频方面的知识。

最后

以上就是怡然小蝴蝶为你收集整理的海思媒体处理平台VI视频输入模块海思媒体处理平台VI视频输入模块的全部内容,希望文章能够帮你解决海思媒体处理平台VI视频输入模块海思媒体处理平台VI视频输入模块所遇到的程序开发问题。

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