请教从vi到vpss发送数据的疑问_问答

本帖最后由 lcg0115 于 2019-4-28 18:56 编辑

最近在学习hi3516平台

我打算通过截取VI 的yuv数据，使用opencv 添加osd数据后，再送到VPSS

这里先测试获取VI 数据，再转发给 VPSS 就出错了。

代码使用

sample\venc\sample_venc.c

在 HI_S32 SAMPLE_COMM_VI_Bind_VPSS（）
取消 HI_MPI_SYS_Bind(&stSrcChn, &stDestChn)
并创建一下线程用于获取VI 数据，再转发送给 VPSS

打印提示
[GetFrameFromVItoVPSS]-503: HI_MPI_VI_GetChnFrame success with 0,width=0 这里应该是得到空数据了
[GetFrameFromVItoVPSS]-508: HI_MPI_VPSS_SendFrame failed with 0xa0078003  这里是提示VPSS参数错误？

HiMPP V4.0 媒体处理软件开发参考.pdf 文档翻了好几天，没有看到要点。

恳请各位大神能帮忙指点迷津，感谢。

代码如下：

[code]void *GetFrameFromVItoVPSS(void* arg)
{
VIDEO_FRAME_INFO_S pstFrameInfo; //sYUVFrameInfo
HI_S32    s32MilliSec = 2000;
HI_S32 s32Ret;
VI_PIPE ViPipe = 0 ;
VI_CHN ViChn = 0;

VPSS_GRP VpssGrp = 0;
VPSS_GRP_PIPE VpssGrpPipe = 0;
  while(1) {
HI_MPI_VI_GetChnFrame(ViPipe, ViChn, &pstFrameInfo,s32MilliSec);
if (HI_SUCCESS != s32Ret)
{
   SAMPLE_PRT("HI_MPI_VI_GetChnFrame failed with %#x\n",s32Ret);
   return s32Ret;
}
SAMPLE_PRT("HI_MPI_VI_GetChnFrame success with %#x,width=%d\n", s32Ret,
pstFrameInfo.stVFrame.u32Width);

s32Ret = HI_MPI_VPSS_SendFrame(VpssGrp, VpssGrpPipe, &pstFrameInfo, s32MilliSec);
if (HI_SUCCESS != s32Ret)
{
   SAMPLE_PRT("HI_MPI_VPSS_SendFrame failed with %#x\n", s32Ret);
   return s32Ret;
}

s32Ret = HI_MPI_VI_ReleaseChnFrame(ViPipe, ViChn, &pstFrameInfo );
if (HI_SUCCESS != s32Ret)
{
   SAMPLE_PRT("HI_MPI_VI_ReleaseChnFrame failed with %#x\n", s32Ret);
   return s32Ret;
}
}

//HI_MPI_VI_GetPipeFrame();
}

HI_S32 SAMPLE_COMM_VI_Bind_VPSS(VI_PIPE ViPipe, VI_CHN ViChn, VPSS_GRP VpssGrp)
{
MPP_CHN_S stSrcChn;
MPP_CHN_S stDestChn;

stSrcChn.enModId = HI_ID_VI;
stSrcChn.s32DevId  = ViPipe;
stSrcChn.s32ChnId  = ViChn;

stDestChn.enModId  = HI_ID_VPSS;
stDestChn.s32DevId = VpssGrp;
stDestChn.s32ChnId = 0;

SAMPLE_PRT("ViPipe=%d,ViChn=%d,VpssGrp=%d\n", ViPipe, ViChn, VpssGrp);
//CHECK_RET(HI_MPI_SYS_Bind(&stSrcChn, &stDestChn), "HI_MPI_SYS_Bind(VI-VPSS)");

int ret = pthread_create(&th_getVIFrame,NULL,GetFrameFromVItoVPSS,NULL);
SAMPLE_PRT("create ret=%d\n", ret);
return HI_SUCCESS;
}[/code]

打印提示如下

[SAMPLE_COMM_VI_Bind_VPSS]-535: ViPipe=0,ViChn=0,VpssGrp=0
[SAMPLE_COMM_VI_Bind_VPSS]-539: create ret=0
[GetFrameFromVItoVPSS]-503: HI_MPI_VI_GetChnFrame success with 0,width=0
[GetFrameFromVItoVPSS]-508: HI_MPI_VPSS_SendFrame failed with 0xa0078003

主要还是要设置一下stChnAttr.u32Depth 就好了。
最开始想着从yuv直接画框，貌似opencv 不支持对yuv操作
还是要研究一下海思的区域。

[code]void *GetFrameFromVItoVPSS(void* arg)
{
VIDEO_FRAME_INFO_S pstFrameInfo; //sYUVFrameInfo
HI_S32    s32MilliSec = 2000;
HI_S32 s32Ret;
VI_PIPE ViPipe = 0 ;
VI_CHN ViChn = 0;
VI_CHN_ATTR_S stChnAttr;
HI_U32 u32Depth = 2;

VPSS_GRP VpssGrp = 0;
VPSS_GRP_PIPE VpssGrpPipe = 0;

s32Ret = HI_MPI_VI_GetChnAttr(ViPipe, ViChn, &stChnAttr);

if (HI_SUCCESS != s32Ret)
{
   printf("get chn attr error!!!\n");
   return (HI_VOID*) - 1;
}

u32OrigDepth = stChnAttr.u32Depth;
stChnAttr.u32Depth = u32Depth;
s32Ret = HI_MPI_VI_SetChnAttr(ViPipe, ViChn, &stChnAttr);

if (HI_SUCCESS != s32Ret)
{
   printf("set chn attr error!!!\n");
   return (HI_VOID*) - 1;
}
while(1) {

   HI_MPI_VI_GetChnFrame(ViPipe, ViChn, &pstFrameInfo,s32MilliSec);
   if (HI_SUCCESS != s32Ret)
   {
         SAMPLE_PRT("HI_MPI_VI_GetChnFrame failed with %#x\n",s32Ret);
         //return s32Ret;
         //continue;
   } else {
         SAMPLE_PRT("HI_MPI_VI_GetChnFrame success with %#x,width=%d\n", s32Ret, pstFrameInfo.stVFrame.u32Width);
         //sample_yuv_work(&pstFrameInfo);

         s32Ret = HI_MPI_VPSS_SendFrame(VpssGrp, VpssGrpPipe, &pstFrameInfo, s32MilliSec);
         if (HI_SUCCESS != s32Ret)
         {
            SAMPLE_PRT("HI_MPI_VPSS_SendFrame failed with %#x\n", s32Ret);
            //return s32Ret;
            //continue;
         }
   }

   s32Ret = HI_MPI_VI_ReleaseChnFrame(ViPipe, ViChn, &pstFrameInfo );
   if (HI_SUCCESS != s32Ret)
   {
         SAMPLE_PRT("HI_MPI_VI_ReleaseChnFrame failed with %#x\n", s32Ret);
         //return s32Ret;
         //continue;
   }

}
//HI_MPI_VI_GetPipeFrame();
}[/code]

请教从vi到vpss发送数据的疑问

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