The Live tab of raspiCamSrv provides functionality to take photos, raw photos and videos.
In all cases, the predefined Camara Configuration for the specific use case is applied together with the currently activated Camera Controls.
As long as no photo has been taken, the Live screen will show like below:
Now, you can use
- the Photo button to take a photo,
where the file type can be selected in the Settings screen. ("jpg" is recommended) - the Raw button to take a raw photo.
Currently only the .dng format is supported. - the Video button to record a video,
where for the video format you may choose between .mp4 and .h264 in the Settings. Recommended is .mp4
If the Photo/Raw Photo Configuration is not compliant with the Live View configuration, the live stream will be shortly interrupted in order to allow the system to apply the Camera Configuration for these use cases.
For more details, see raspiCamSrv Tasks and Background Processes
The photo (in the case of raw photos a placeholder photo) will be shown in the bottom area of the screen together with the Metadata.
When video recording is started, the system will first check whether the required Camera Configuration is compliant with the configuration of the active Live Stream.
If this is the case, first a normal photo of the scene will be taken, which will be used as placeholder. This will be shown in the bottom area.
The Video button has changed to Stop which must be used to stop video recording.
If audio is recorded along with video (see Settings), this will be indicated by the process indicator:
If video recording requires exclusive camera access because of specific configuration (see raspiCamSrv Tasks and Background Processes), the live stream will be paused and a placeholder is shown instead:
When a photo, raw photo or video has been taken, the bottom area will show the photo together with its Metadata or its histogram:
The file name for the photo, raw photo or video has been generated automatically based on system date/time when the request is issued to the camera.
Above the photo, some buttons are shown which allow manipulation of a display buffer:
-
Pressing the - button will remove the photo from display.
It will not be removed from the file system. -
The active + button shows that the photo is not yet a member of the display buffer.
Pressing this button will add it to the buffer.
This is shown as:
The indicator (x/y) above the + button shows the position of the Photo within the buffer as the left number and the total number of photos in the buffer as the right number.
With the larger number of photos within the buffer, navigation buttons < and > allow navigation within the buffer:
Additional buttons are available:
- Hide / Show can be used to hide or show the bottom area with the display buffer
- Clr(x) will clear the entire buffer.
The number in brackets is the total number of elements in the buffer. - < will display the previous photo in the buffer
- > will display the next photo within the buffer
- - when applied to a member of the buffer, will remove it from the buffer
Along with a photo, also its metadata will be shown.
Metadata and photo have been captured within the same capturing request.
For the metadata, tooltips on the metadata properties explain the respective parameter.
Previous and Next buttons allow scrolling the list of metadata if it does not fit on the screen.
Alternatively to the metadata, you may also switch to Histogram if usage of histograms has been activated in the Settings.
The setting whether metadata or histogram are shown, is kept and remains active also when the next photo is taken or when scrolling through the Photo Buffer.
Histogram graphics are calculated on the fly when they are requested for the first time.
They are stored in a "hist" subfolder under the Path for Photos/Videos (see Settings)