The EMS is able to record streams as MP4, FLV or MPEG Transport Stream (TS) files. Any incoming stream type can be recorded. Recording a stream can be done using the following steps:
Bring a new stream into the EMS. In this case we are pulling a new RTSP stream:
pullStream uri=rtsp://<STREAM_ADDRESS> localStreamName=RTSPTest
We now have a stream named RTSPTest in the server.
To record it, we issue the record command:
record localstreamname=RTSPTest pathtofile=../media/ type=mp4
This will cause the EMS to record the source RTSP stream into an MP4 file. The file will be placed in the media folder of the EMS installation (as per the “../media” parameter value). The file will be named as
In general, the format usually followed is
Users may issue the record command before the desired stream is actually available, essentially queuing the recording. In other words, the previous two commands (pullstream, record) can be issued in reverse order and still achieve the same result.
Stopping a Recording
A recorded stream is just like any other stream in the EMS, it is simply directed to a file instead of towards the network. Users may therefore use either of the normal shutdown stream commands to stop a recording. This will cause the recording of this stream to stop, which will close the file that is being written to. All data that had previously been recorded will remain stored in that file. If the stream had not yet been recorded (because a stream with that name was not yet available) then the recording will be canceled.