Movie Playback

Execute movie playback in media by using streaming.

Without transferring the video file to a computer, users can review any section of the video remotely.

This function is only enable in “RemoteTransferMode”.

To use this function, you need an OS that supports H.265.

A dedicated library is required to use this function. The storage location of the library differs depending on the OS. Please refer to the following link to set up your environment. refs: Library files used for ControlMonitoring and MoviePlayback

You specify the content that want to playback by contentsId and fileId.

ContentsId is member of class “CrContentsInfo”. FileId is member of class “CrContentsFile”. Please see Pull out content stored on media in RemoteTransferMode how to get these parameters.

Example:

SCRSDK::CrMoviePlaybackSetting setting;
std::string hostIp = "192.168.0.123";
int ipLen = hostIp.length() + 1 + sizeof(CrInt16u); // +1 = Null-terminate
            // sizeof(CrInt16u) = String length
setting.ipAddress = new CrInt8u[ipLen];
memset(setting->ipAddress, 0, ipLen);
CrInt16u* strLen = (CrInt16u*)setting.ipAddress; // pointer cast
*strLen = (CrInt16)hostIp.length() + 1; // String length, include Null-terminate
for (int i = 0; i < ipLen; i++) {
  setting.ipAddress[sizeof(CrInt16u) + i] = (CrInt8u)hostIp[i];
}
setting.downTime = 5000; // 5 sec
setting.videoPort = 0; // If zero, the default value (55001) is used.
setting.audioPort = 0; // If zero, the default value (55003) is used.
setting.metaPort = 0;  // If zero, the default value (55005) is used.

// Set target content info.
setting.slotId = SCRSDK::CrSlotNumber_Slot1;
setting.contentsId = contentsInfo.contentId;
setting.fileId = contentsFile.fileId;

// Set
CrError err = SCRSDK::SetMoviePlaybackSetting(handle, &setting, 1);
if (CR_FAILED(err)) {
  printf("Return SetMoviePlaybackSetting err(%x)", err);
}

delete[] setting.ipAddress;

After setting up the conditions, request the start streaming.

Example:

// Start
CrError err = SCRSDK::ControlMoviePlayback(handle, SCRSDK::CrMoviePlaybackControlType_Start, 0);
if (CR_FAILED(err)) {
  printf("Start request err(%x)", err);
}

Receive callback “CrNotify_Playback_StatusChanged” by OnWarning() when camera completed the prepare at streaming.

After receive that, you can receive streaming data by callback “IDeviceCallback::OnReceivePlaybackData()”.

And you can receive time-code by callback “IDeviceCallback::OnReceivePlaybackTimeCode()”.

First, playback status is pause. So you need request the play operation.

Example:

// Start
CrError err = SCRSDK::ControlMoviePlayback(handle, SCRSDK::CrMoviePlaybackControlType_Play, 0);
if (CR_FAILED(err)) {
  printf("Start request err(%x)", err);
}

If failed to control operation, the failure result is notified in the OnWarning() callback.

You can get the status of playback by RequestMoviePlaybackStatus().

The result will be notified by OnWarning().

When OnWarning notifies you of “CrNotify_PlayBack_Result_PlaybackInfo_Success”, you can get the status with GetMoviePlaybackStatus().

Example:

CrError err = SCRSDK::RequestMoviePlaybackStatus(handle);
if (CR_FAILED(err)) {
  if (err == SCRSDK::CrError_Api_InvalidCalled) {
    // Movie playback function is not executing.
    printf("playback function is not start yet.");
  } else {
    printf("failed request err(%x)", err);
  }
}

class MyDeviceCallback : public IDeviceCallback {
  void OnWarning(CrInt32u warning) {
    if (CrNotify_Playback_Result_PlaybackInfo_Success == warning) {
      // complete request. You can get status by GetMoviePlaybackStatus().
    else if (CrWarning_Playback_Result_PlaybackInfo_Error == warning) {
      // failed request.
    else
      : // Other warning

Please set LiveViewEnable status to disable if it set enable. See SetDeviceSetting() for details.

Please stop monitoring function if you execute it. See Monitoring for details.