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标题: pu端链接上监视器后，监视器来回切换音视频传输无法正常切换 [打印本页]

author: unionman_li time: 2018-10-22 15:33
标题: pu端链接上监视器后，监视器来回切换音视频传输无法正常切换
我们这边配置音视频预览传输的参数如下
if (pParam->iAVStreamDir & BVCU_MEDIADIR_VIDEOSEND)
      {
         if(s_s32VideoType == DIALOG_VIDEO_TYPE_H265)
         {
            pParam->szMyselfVideo.codec = SAVCODEC_ID_H265;
            pParam->szMyselfVideo.pExtraData = s_pExtraData;
            pParam->szMyselfVideo.iExtraDataSize = s_s32VideoSPSLen + s_s32VideoPPSLen + s_s32VideoVPSLen;
            memcpy(pParam->szMyselfVideo.pExtraData, s_azVideoVPS, s_s32VideoVPSLen);
            memcpy(pParam->szMyselfVideo.pExtraData + s_s32VideoVPSLen, s_azVideoSPS, s_s32VideoSPSLen);
            memcpy(pParam->szMyselfVideo.pExtraData + s_s32VideoVPSLen + s_s32VideoSPSLen , s_azVideoPPS, s_s32VideoPPSLen);
         }
         else if(s_s32VideoType == DIALOG_VIDEO_TYPE_H264)
         {
            pParam->szMyselfVideo.codec = SAVCODEC_ID_H264;
            pParam->szMyselfVideo.pExtraData = s_pExtraData;
            pParam->szMyselfVideo.iExtraDataSize = s_s32VideoSPSLen + s_s32VideoPPSLen;
            memcpy(pParam->szMyselfVideo.pExtraData, s_azVideoSPS, s_s32VideoSPSLen);
            memcpy(pParam->szMyselfVideo.pExtraData + s_s32VideoSPSLen, s_azVideoPPS, s_s32VideoPPSLen);
         }
      }

      if (pParam->iAVStreamDir & BVCU_MEDIADIR_AUDIOSEND)
      {
         pParam->szMyselfAudio.codec = SAVCODEC_ID_AAC;
         pParam->szMyselfAudio.iBitrate = 128000;//12200
         pParam->szMyselfAudio.iChannelCount = 1;// 1
         pParam->szMyselfAudio.iSampleRate = 48000;//8000
         pParam->szMyselfAudio.eSampleFormat = SAV_SAMPLE_FMT_S16;//(SAV_SAMPLE_FMT_FLTP)??
         make_dsi(get_samplerate_index(pParam->szMyselfAudio.iSampleRate),pParam->szMyselfAudio.iChannelCount,g_pExtraData);
         pParam->szMyselfAudio.pExtraData =(char *) g_pExtraData;
         pParam->szMyselfAudio.iExtraDataSize = 2;
      }
      if (pParam->iAVStreamDir & BVCU_MEDIADIR_AUDIORECV)
      {
         pParam->szTargetAudio.codec = SAVCODEC_ID_G726;
         pParam->szTargetAudio.eSampleFormat = SAV_SAMPLE_FMT_FLTP;
         pParam->szTargetAudio.iBitrate = 32000;
         pParam->szTargetAudio.iChannelCount = 1;
         pParam->szTargetAudio.iSampleRate = 8000;
      }

      memcpy(&stDialogParam, pParam,sizeof(BVCSP_DialogParam));
      memset(&stDialogCmd, 0, sizeof(stDialogCmd));
      stDialogParam.OnEvent = dialog_on_event;
      stDialogParam.afterRecv = dialog_after_recv;

      stDialogCmd.iResult = BVCU_RESULT_S_OK;
      stDialogCmd.pDialogParam = &stDialogParam;
      pParam->OnEvent(hDialog, iEventCode, &stDialogCmd);

      return BVCU_RESULT_S_PENDING;
当是我们配置成这种参数的时候，发现如果再监视器端切换音视频同传，只传音频，或者只传视频，切换一两次后就切换不正常，直接卡住，然后也修改过直接return bvcu_result_s_ok，这样的话会直接监视器端提示说没有接收到I帧，但是我们这边的编码是已经开启了的，数据肯定是正常发送了，不管这两种修改，多切换几次之后关闭通道没有接收到关闭的消息.

author: zhangjun time: 2018-10-22 17:04
您好，已经获取到音视频的相关信息，重新设置一下pParam->OnEvent和pParam->afterRecv相关回调，
无需再调用pParam->OnEvent(hDialog, iEventCode, &stDialogCmd)，直接返回BVCU_RESULT_S_OK即可。

author: unionman_li time: 2018-10-23 09:16
我这边改成这样之后
memcpy(&stDialogParam, pParam,sizeof(BVCSP_DialogParam));
      memset(&stDialogCmd, 0, sizeof(stDialogCmd));
      stDialogParam.OnEvent = dialog_on_event;
      stDialogParam.afterRecv = dialog_after_recv;

      stDialogCmd.iResult = BVCU_RESULT_S_OK;
      stDialogCmd.pDialogParam = &stDialogParam;
      if(iEventCode == BVCSP_EVENT_DIALOG_UPDATE)
      {
         return BVCU_RESULT_S_OK;
      }
切换看起来是没什么问题，但是呢，我切换几次之后关闭通道并没有收到对应的close dialog信息过来？

author: zhangjun time: 2018-10-23 09:38

unionman_li post on2018-10-23 09:16
我这边改成这样之后
memcpy(&stDialogParam, pParam,sizeof(BVCSP_DialogParam));
memset(&stDi ...

直接修改pParam的回调函数

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