hi3536 H265视频显示不出来_问答

本帖最后由 songli344 于 2017-5-14 19:00 编辑

求高手帮忙看看hi3536不显示H265视频的问题
/proc/umap/vdec文件内容如下：（看不懂文件内容，求哪里可以查到说明文档？）

------------  info from master arm -------------
[VDEC] Version: [Hi3536_MPP_V2.0.5.0 B020 Release], Build Time[Jun 14 2016, 09:19:10]

-----message info--------------------------------------------------------------
  ID    WakeupVfmw
0          1863

------------  info from slave arm -------------
[VDEC] Version: [Hi3536_MPP_V2.0.5.0 B020 Release], Build Time[Jun 14 2016, 09:20:49]

-----MODULE PARAM--------------------------------------------------------------
  obey_minCR MiniBufMode    VBSource
         0             0          2

-----CHN ATTR & PARAMS-------------------------------------------------------
  ID  TYPE Prior MaxW MaxH Width  Height StrmInputMode  Compress STATE
0  H265    1 1920 1080    0    0 FRAME/NOBLOCK       N START

ID  VfmwID  RefNum MvpEnable DispNum    BufSize  MaxSlice  MaxSPS  MaxPPS  MaxVPS  DisplayMode
0    1    2       No       2    1555200       8    5    5    5    PlayBack

ID  ErrThr StrmThr DecMode OutMode  SetUserPic Rotate  PicPoolId  PmvPoolId  PriVbCnt
0    30       0       IP    Dec          N       0       3       -1       -1

-----CHN STATE-----------------------------------------------------------------
  ID  PrtclErr  StrmUnSP StrmError RefNumErr  PicSizeErr  fmterror  PicBufSizeErr    StrmNotRls Notify
0       0       0    4099       0          0       0             0             0    6150

ID  fps  TimerCnt BufFLen DataLen UsrFLen UsrLen ptsBufF ptsBufU StreamEnd
0 0    8232 2586811       0    4064       0       39       0       1

----- Detail Stream STATE -----------------------------------------------------------
  ID MpiSndNum          MpiSndLen VdecNum VdecLen  FmGetNum          FmGetLen  FmRlsNum          FmRlsLen  FmLstGet FmRlsFail
0    2049          15335065    2049    32784    2055          15367865    2054          15361940    5925       0

----- Detail FrameStore STATE -----------------------------------------------------------
  ID  FmNewPic GetFromFm Discard UsrSnd KerSnd KerRls MeetEnd FrmInVdec          CurPicPts RedDiff  MaxRedDiff DecDiff  MaxDecDiff
0       0       0       0       0       0       0    2049          0                0       59       9940       0          0

ID  FreeNode  VfmwNode VgsNode VgsWorkingNode  BusyNode  UserNode RefNum  IsAvalible VbCnt  MaxVbCnt GetPicVbFail GetMvpVbFail
0       40       0       0             0       0       0       0          1    1       5             0             0

----- Detail UserData STATE -----------------------------------------------------------
  ID MpiGet    MpiGetLen MpiRls    MpiRlsLen Discard    DiscardLen GetFromFm GetFromFmLen UsrFLen UsrLen
0       0             0       0             0       0             0       0             0    4064       0

[quote][url=forum.php?mod=redirect&goto=findpost&pid=49752&ptid=15183]zhuangweiye 发表于 2017-5-15 13:57[/url]
到SDK的 sample下面找找[/quote]

我试了sample下的265文件，可以解出来，但RTP里解的还是不对，能否给讲解下下面几个问题：
1 每个解出来的NAL单元是否就是一帧，可以直接调用HI_MPI_VDEC_SendStream发送？
2 RTP里的Marker bit和Timestamp参数在解包时是否也要用到，Marker bit=1标识一帧结束？同一帧的Timestamp相同？
3 sample用下面的代码标识一帧的开始：
bNewPic = (pu8Buf[i+0] == 0 && pu8Buf[i+1] == 0 && pu8Buf[i+2] == 1
&&(((pu8Buf[i+3]&0x7D) >= 0x0 && (pu8Buf[i+3]&0x7D) <= 0x2A) || (pu8Buf[i+3]&0x1F) == 0x1)
&&((pu8Buf[i+5]&0x80) == 0x80));//first slice segment
为么是0x7D和0x1F呀，type不是中间的6位吗，而且0x80不是只在FU中才代表开始位吗

已经晕了，求赐教，多谢了

hi3536 H265视频显示不出来

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