hisi3520d的samples怎么利用mp4v2库合成MP4_问答

我也遇到同样的问题，我的代码贴一下
HI_VOID* SAMPLE_COMM_VENC_GetVencStreamProc(HI_VOID *p)

{

HI_S32 i;

HI_S32 s32ChnTotal;

VENC_CHN_ATTR_S stVencChnAttr;

SAMPLE_VENC_GETSTREAM_PARA_S *pstPara;

HI_S32 maxfd = 0;

struct timeval TimeoutVal;

fd_set read_fds;

HI_S32 VencFd[VENC_MAX_CHN_NUM];

HI_CHAR aszFileName[VENC_MAX_CHN_NUM][64];

FILE *pFile[VENC_MAX_CHN_NUM];

char szFilePostfix[10];

VENC_CHN_STAT_S stStat;

VENC_STREAM_S stStream;

HI_S32 s32Ret;

VENC_CHN VencChn;

PAYLOAD_TYPE_E enPayLoadType[VENC_MAX_CHN_NUM];
#ifdef MP4

char* bigbuffer = NULL;
#endif

pstPara = (SAMPLE_VENC_GETSTREAM_PARA_S*)p;
#ifdef MP4

s32ChnTotal = 1;//pstPara->s32Cnt;
#else
s32ChnTotal = pstPara->s32Cnt;

#endif

/******************************************

   step 1:  check & prepare save-file & venc-fd

******************************************/

if (s32ChnTotal >= VENC_MAX_CHN_NUM)

{

      SAMPLE_PRT("input count invaild\n");

      return NULL;

}

for (i = 0; i < s32ChnTotal; i++)

{

      /* decide the stream file name, and open file to save stream */

      VencChn = i;

      s32Ret = HI_MPI_VENC_GetChnAttr(VencChn, &stVencChnAttr);

      if(s32Ret != HI_SUCCESS)

      {

         SAMPLE_PRT("HI_MPI_VENC_GetChnAttr chn[%d] failed with %#x!\n", \

               VencChn, s32Ret);

         return NULL;

      }

      enPayLoadType = stVencChnAttr.stVeAttr.enType;

      s32Ret = SAMPLE_COMM_VENC_GetFilePostfix(enPayLoadType, szFilePostfix);

      if(s32Ret != HI_SUCCESS)

      {

         SAMPLE_PRT("SAMPLE_COMM_VENC_GetFilePostfix [%d] failed with %#x!\n", \

               stVencChnAttr.stVeAttr.enType, s32Ret);

         return NULL;

      }

      sprintf(aszFileName, "stream_chn%d%s", i, szFilePostfix);

      pFile = fopen(aszFileName, "wb");

      if (!pFile)

      {

         SAMPLE_PRT("open file[%s] failed!\n",

               aszFileName);

         return NULL;

      }

      /* Set Venc Fd. */

      VencFd = HI_MPI_VENC_GetFd(i);

      if (VencFd < 0)

      {

         SAMPLE_PRT("HI_MPI_VENC_GetFd failed with %#x!\n",

               VencFd);

         return NULL;

      }

      if (maxfd <= VencFd)

      {

         maxfd = VencFd;

      }

}
#ifdef MP4

printf("inital the MP4CreateEx\n");
MP4FileHandle file = MP4CreateEx("test.mp4", 0, 1, 1, 0, 0, 0, 0);

if (file == MP4_INVALID_FILE_HANDLE)
{
printf("open file fialed.\n");
return;
}

MP4SetTimeScale(file, 90000);
printf("MP4SetTimeScale set\n");
MP4TrackId video = MP4AddH264VideoTrack(file, 90000, 90000 / 25, stVencChnAttr.stVeAttr.stAttrH264e.u32PicWidth, stVencChnAttr.stVeAttr.stAttrH264e.u32PicHeight,
                                          0x64, //sps[1] AVCProfileIndication
                                          0x00, //sps[2] profile_compat
                                          0x1f, //sps[3] AVCLevelIndication
                                          3); // 4 bytes length before each NAL unit
if (video == MP4_INVALID_TRACK_ID)
{
printf("add video track fialed.\n");
return;
}
printf("MP4AddH264VideoTrack set\n ");
MP4SetVideoProfileLevel(file, 0x01);
printf("MP4SetVideoProfileLevel \n");
#endif

/******************************************

   step 2:  Start to get streams of each channel.

******************************************/

while (HI_TRUE == pstPara->bThreadStart)

{

      FD_ZERO(&read_fds);

      for (i = 0; i < s32ChnTotal; i++)

      {

         FD_SET(VencFd, &read_fds);

      }

      TimeoutVal.tv_sec  = 2;

      TimeoutVal.tv_usec = 0;

      s32Ret = select(maxfd + 1, &read_fds, NULL, NULL, &TimeoutVal);

      if (s32Ret < 0)

      {

         SAMPLE_PRT("select failed!\n");

         break;

      }

      else if (s32Ret == 0)

      {

         SAMPLE_PRT("get venc stream time out, exit thread\n");

         continue;

      }

      else

      {

         for (i = 0; i < s32ChnTotal; i++)

         {

            if (FD_ISSET(VencFd, &read_fds))

            {

                  /*******************************************************

                  step 2.1 : query how many packs in one-frame stream.

                  *******************************************************/

                  memset(&stStream, 0, sizeof(stStream));

                  s32Ret = HI_MPI_VENC_Query(i, &stStat);

                  if (HI_SUCCESS != s32Ret)

                  {

                     SAMPLE_PRT("HI_MPI_VENC_Query chn[%d] failed with %#x!\n", i, s32Ret);

                     break;

                  }

                  /*******************************************************

                  step 2.2 : malloc corresponding number of pack nodes.

                  *******************************************************/

                  stStream.pstPack = (VENC_PACK_S*)malloc(sizeof(VENC_PACK_S) * stStat.u32CurPacks);

                  if (NULL == stStream.pstPack)

                  {

                     SAMPLE_PRT("malloc stream pack failed!\n");

                     break;

                  }



                  /*******************************************************

                  step 2.3 : call mpi to get one-frame stream

                  *******************************************************/

                  stStream.u32PackCount = stStat.u32CurPacks;

                  s32Ret = HI_MPI_VENC_GetStream(i, &stStream, HI_TRUE);

                  if (HI_SUCCESS != s32Ret)

                  {

                     free(stStream.pstPack);

                     stStream.pstPack = NULL;

                     SAMPLE_PRT("HI_MPI_VENC_GetStream failed with %#x!\n", \

                           s32Ret);

                     break;

                  }

                  /*******************************************************

                  step 2.4 : save frame to file

                  *******************************************************/

                  s32Ret = SAMPLE_COMM_VENC_SaveStream(enPayLoadType, pFile, &stStream);

                  if (HI_SUCCESS != s32Ret)

                  {

                     free(stStream.pstPack);

                     stStream.pstPack = NULL;

                     SAMPLE_PRT("save stream failed!\n");

                     break;

               }
#ifdef MP4
unsigned int tlen = 0;
unsigned int len = 0;
for (i = 0; i < stStream.u32PackCount; i++)
{
tlen = tlen + stStream.pstPack.u32Len[0];
tlen = tlen + stStream.pstPack.u32Len[1];
}
printf("the tlen is %d\n",tlen);
bigbuffer = (char*)malloc(tlen);
for (i = 0; i < stStream.u32PackCount; i++)
      {

memcpy(bigbuffer, stStream.pstPack.pu8Addr[0],stStream.pstPack.u32Len[0]);
bigbuffer = bigbuffer + stStream.pstPack.u32Len[0];
len = len + stStream.pstPack.u32Len[0];
memcpy(bigbuffer, stStream.pstPack.pu8Addr[1],stStream.pstPack.u32Len[1]);
bigbuffer = bigbuffer +  stStream.pstPack.u32Len[1];
len = len+ stStream.pstPack.u32Len[1];

        }

MP4WriteSample(file, video, bigbuffer+4, len-4, MP4_INVALID_DURATION, 0, 1);
#endif

                  /*******************************************************

                  step 2.5 : release stream

                  *******************************************************/

                  s32Ret = HI_MPI_VENC_ReleaseStream(i, &stStream);

                  if (HI_SUCCESS != s32Ret)

                  {

                     free(stStream.pstPack);

                     stStream.pstPack = NULL;

                     break;

                  }

                  /*******************************************************

                  step 2.6 : free pack nodes

                  *******************************************************/

                  free(stStream.pstPack);

                  stStream.pstPack = NULL;

            }

         }

      }

}

/*******************************************************

* step 3 : close save-file

*******************************************************/

for (i = 0; i < s32ChnTotal; i++)

{

      fclose(pFile);

}
#ifdef MP4

MP4Close(file,0);
#endif

return NULL;

}

但我的程序根本不成功，# ./sample_venc 0
[SAMPLE_COMM_SYS_CalcPicVbBlkSize]-167: w:768, u32AlignWidth:64
please choose rc mode:
0) CBR
1) VBR
2) FIXQP
0
please press twice ENTER to exit this sample
inital the MP4CreateEx
MP4SetTimeScale set
Aborted

直接晕掉了。

hisi3520d的samples怎么利用mp4v2库合成MP4

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