Recording Server > How to Add a Camera > Streaming

A media profile consists of a set of individual camera parameters such as image resolution, frames per second and image quality, which are associated with Recording, Motion Detecion and Live View. The system allows multi-streaming configuration, that is, the use of multiple configurations (streams) for recording, motion detection or live viewing.

For a better understanding, let's assume the following scenario: A recording profile can be created, which will be associated with the camera's recording event. In this profile we can define that we want to record five frames per second, with a resolution of 320x240 and high image compression. A visualization profile can also be created, which will be associated with the camera visualization event. In this profile we can define that we want to visualize the camera at ten frames per second with a resolution of 640x480 and low image compression.

By default, when registering a new camera, two pre-configured media profiles are created, one for recording and one for viewing. The preconfigured parameters of each profile are only the parameters common to all devices. The Media Profiles of all cameras and video-servers have common parameters and individual parameters for each equipment. Common parameters are:

•Video Compression: Video compression to be used when recording the images on disk. The system currently supports Motion JPEG, MPEG4, MxPEG, H263, H264 and H265 formats.

•Image resolution: Image resolution that will be used in the profile. When selecting the camera model, this list of resolutions automatically starts showing only the resolutions supported by the camera. A very high image resolution will consume a lot of disk space and network bandwidth, but the image will have a higher quality where it is possible to recognize more details in the image, such as a person's face. A very small image resolution will consume little disk space and network bandwidth, but the image will have a lower quality, providing little detail. This parameter must be configured as needed. The system has a disk space consumption calculator that will help you better configure image resolution and frames per second. To learn how to use system calculator, see Disk Space Usage Calculator

•Image quality: The images coming from the cameras go through a compression process. The higher the image compression level, the less quality this image will have, and the lower the image compression level, the more quality.

•Frames per second: Frames per second to be recorded. A higher frames per second rate will consume more network bandwidth and disk space, but will give smoother motion. A lower rate of frames per second will consume little network bandwidth and disk space, but the movement will be more robotic. It is proven that from three to seven frames per second it is already possible to recognize all the movements of a person. In some cases, the camera may not be able to send the configured amount of frames per second, especially with high frame rates per second. This is due to several factors such as internal network malfunction, number of connections made to the camera and camera processing power.

Some specific parameters of each equipment, among others, we can exemplify the insertion of texts in the image, image rotation, color levels, etc.

Some cameras may not support dynamically adjusting common parameters such as frame rate and image quality. In this case, these adjustments must be made directly on the camera through its own interface, where in this case you can select which Camera Stream you want to associate with the media profile.