3531中的帧率设置问题

本帖最后由 csjl 于 2015-4-2 20:11 编辑


3531中编码通道参数如下，但是/proc/umap/venc中显示FrameRate=59，如何理解？
想要设置帧率为30，如何设置？


VIDEO_NORM_E enNorm = VIDEO_ENCODING_MODE_PAL;


stH264Attr.u32MaxPicWidth = stPicSize.u32Width;
stH264Attr.u32MaxPicHeight = stPicSize.u32Height;
stH264Attr.u32PicWidth = stPicSize.u32Width;/*the picture width*/
stH264Attr.u32PicHeight = stPicSize.u32Height;/*the picture height*/
stH264Attr.u32BufSize  = stPicSize.u32Width * stPicSize.u32Height * 2;/*stream buffer size*/
stH264Attr.u32Profile  = 0;/*0: baseline; 1:MP; 2:HP   ? */
stH264Attr.bByFrame = HI_TRUE;/*get stream mode is slice mode or frame mode?*/
stH264Attr.bField = HI_FALSE;  /* surpport frame code only for hi3516, bfield = HI_FALSE */
stH264Attr.bMainStream = HI_TRUE; /* surpport main stream only for hi3516, bMainStream = HI_TRUE */
stH264Attr.u32Priority = 0; /*channels precedence level. invalidate for hi3516*/
stH264Attr.bVIField = HI_FALSE;/*the sign of the VI picture is field or frame. Invalidate for hi3516*/
memcpy(&stVencChnAttr.stVeAttr.stAttrH264e, &stH264Attr, sizeof(VENC_ATTR_H264_S));



stVencChnAttr.stRcAttr.enRcMode = VENC_RC_MODE_H264VBR;
stH264Vbr.u32Gop = (VIDEO_ENCODING_MODE_PAL== enNorm)?25:30;
stH264Vbr.u32StatTime = 1;
stH264Vbr.u32ViFrmRate = (VIDEO_ENCODING_MODE_PAL== enNorm)?25:30;
stH264Vbr.fr32TargetFrmRate = (VIDEO_ENCODING_MODE_PAL== enNorm)?25:30;
stH264Vbr.u32MinQp = 10;
stH264Vbr.u32MaxQp = 40;
stH264Vbr.u32MaxBitRate = 1024*6;
memcpy(&stVencChnAttr.stRcAttr.stAttrH264Vbr, &stH264Vbr, sizeof(VENC_ATTR_H264_VBR_S));


s32Ret = HI_MPI_VENC_CreateChn(VencChn, &stVencChnAttr);
if (HI_SUCCESS != s32Ret)
{
    SAMPLE_PRT("HI_MPI_VENC_CreateChn [%d] faild with %#x!\n",\
                VencChn, s32Ret);
    return s32Ret;
}




[VENC] Version: [Hi3531_MPP_V2.0.A.0 Debug], Build Time[Jun  4 2013, 17:14:33]

-----VENC CHN ATTR-------------------------------------------------------------
     NO.   Width  Height  Type Field VIField StreamType  ByFrame   BlockFlag    Sequence  Registered   LeftBytes     LeftFrm   CurPacks
       0    1920    1080    96     0       0          1        1           1       52518           1           0           0         1

-----VENC STREAM STATE------------------------------------------------------------
     NO.     FreeCnt     BusyCnt     UserCnt     UserGet     UserRls    GetTimes    Interval   FrameRate
       0           2           0           0       57771       57771       52518       10000          59
^C