Quick answer
OSD means on-screen display. On a network camera it commonly controls text such as the camera name and timestamp over the video. Change it in the camera’s supported web interface or recorder settings, then verify the actual stream. A label added by a viewer is a different setting.
Identify which device draws the text
A camera can place text into its video before it reaches a viewer. A recorder may expose controls for that camera overlay, and a viewing app may also display its own name or status above the picture. These layers can look similar but have different owners. Changing the name in SmartRTSP should not be treated as a command to rewrite the camera’s embedded timestamp.
OSD can also mean the settings menu of an analog camera or a display. An analog camera connected through a DVR may use the recorder’s supported camera-menu control. Do not assume those controls are available through an arbitrary RTSP stream. First identify the camera, recorder and video path you are configuring.
Make a readable camera overlay
Use the official manual to locate OSD, Overlay, Image or Video settings; menu names differ by firmware. Choose a short location name such as Front Gate rather than including passwords, personal names or other sensitive details. A timestamp is only useful when the camera’s time is correct.
Steps
- Log into the camera or its authorized recorder with configuration permission.
- Set the camera time zone, time synchronization and daylight-saving behavior before editing the displayed date format.
- Enable the required name and date/time fields, then adjust their size, contrast and position so they do not obscure the area of interest.
- Save and inspect both the main stream and substream in a viewer, including a recording or snapshot if you use them.
Check recordings and privacy separately
An overlay that is embedded in the encoded image will usually remain visible in footage captured from that stream. Existing recordings are not rewritten when you change the setting. Some cameras offer different overlay behavior across streams or newer formats, so verify your selected stream rather than assuming all outputs match.
A privacy mask serves a different purpose: it hides a region of the scene. Ordinary text, a logo or a viewer window placed over the picture is not a reliable substitute. Configure the camera’s documented privacy function when needed, then check every accessible stream and any PTZ positions. For a wrong timestamp, correct the camera clock first instead of adding a second, contradictory clock in the viewer.
Frequently asked questions
Why do I see two camera names?
The camera may embed one name while the viewer draws another. Identify each layer and change its corresponding setting.
Can SmartRTSP remove text already embedded in video?
A viewer cannot restore scene pixels covered by an embedded overlay. Change the camera setting for future video if the model supports it.
Why is the timestamp an hour wrong?
Check the camera time zone and daylight-saving settings, then its time source. The problem may exist even when the phone or computer clock is correct.