Video/Sound Element
Video streams
Video streams are used in entertainment and communication systems to manage streaming media servers.
Playlist URL Specification
- Select “Video from File” from the content type dropdown.
- Enter the stream URL where the stream is located.
- Example:
RTSP://<server>/example.mp4 - Example:
RTSP://xxx.xxx.xxx.xxx:554
- Example:
- Click ”…” next to the URL field to open the URL Editor, which assists in structuring the correct URL format.
Supported Streaming Protocols
| Protocol | Implemented | Description |
|---|---|---|
| RTSP | Yes | Real-Time Streaming Protocol (Typically on TCP port 554) |
| RTP | Yes | Real-time Transfer Protocol |
| UDP | Yes | User Datagram Protocol |
| MMS | Yes | Microsoft Media Server |
| HTTP | Yes | Hypertext Transfer Protocol |
Video Display Delay
- Streaming can introduce a delay due to buffering.
- To reduce buffering, increase the speed ratio to 400%, which bypasses the buffer.
- Side effect: This may cause video stuttering if the network connection is unstable.
Multicast vs. Unicast
Multicast
- Sends one stream to multiple clients instead of creating separate streams for each viewer.
- Reduces server/network load by avoiding duplicate data transmission.
- Best for large-scale streaming environments.
Unicast
- Each viewer receives an independent copy of the stream.
- Uses more bandwidth than multicast.
- Best for personalized or private streaming.
Considerations for Streaming
- Streaming consumes more bandwidth than playing locally stored videos.
- Multicasting can help reduce network usage (consult your network administrator for details).
- If the network connection fails, the stream will stop playing.
Performance Optimization Tip
- To reduce playback delay, set the speed ratio to 400%.
- Possible side effect: If the connection is unstable, the video may stutter.