How much space should I have for the archive?
IP cameras with a resolution of 640x480 and 25 frames/sec of continuous recording, with average traffic intensity in the frame of the camera and H.264 encoding for 24 hours, required 11Gb of disk space.
What you need to consider when allocating data archive space for your camera:
- Video quality. The higher the quality, the greater the volume of data from the camera. The following are the parameters that affect the amount of data: Resolution – video camera resolution. Higher resolution - better quality and greater data volume..
- Bitrate - stands for the degree of stream compression and thus determines the bandwidth, for which the data stream is compressed. That is, the maximum size of data stream from that camera. The higher the bitrate, the higher the quality of the video that can be transmitted and, respectively,the greater the amount of data.
- Frame rate – the number of still images succeeding one another in 1 second. The higher the frame rate, the smoother the movement will appear. The frame rate, at which movement will be perceived even, is different for each person. Therefore, we select the settings according to your requirements. The higher the frame rate, the greater the data volume..
- Encoding. For example, when using H.264, only the part of the image that has changed (using interframe difference)is encoded. If you are using MJPEG, every frame is transmitted. Thus, when using compression techniques that take into account the interframe differences, we a get smaller video stream from the camera,,especially when the camera frame has little movement.
- How an archive is recorded - by motion detection or through continuous recording. When using motion detection, recording of an archive begins on the 5th second before the beginning of the movement and ends in 15 seconds after the movement is completed. When you select continuous recording, the archive is recorded continuously.
- Intensity of movement in the camera frame. The higher the movement intensity the greater the archive size (when using compression techniques that take into account interframe differences, such as H.264).
Camera videos of different quality can be viewed in Ivideon Client or in the personal account - it will determine the load on the outbound Internet channel and the CPU, but it will not affect the quality of the archived videos in any way.