Bandwidth consumption depends on various factors related to your video such as resolution or encoding.
Bandwidth is the amount of information that can be transmitted simultaneously over a transmission path ( in bits/second or Mbps). In other words, it is the maximum amount of information that can be sent and received in a given period of time. When a video is broadcast on the internet, bandwidth is consumed.
- Mbps (Megabits/second): This means "the transfer rate of one million bits per second".
> Bit rate
The bit rate is the amount of data encoded per unit of time (usually expressed in Kbps). This corresponds to "traffic". As a general rule, the higher the bit rate, the better the video quality. Therefore, the bandwidth required will be high.
> Video resolution
- The resolution of the video is the number of pixels it has in height and width (noted width x height). The higher the resolution, the sharper the video image (more pixels) and the higher the data consumption.
Examples : HD = 720p or 1280x720 ; Full HD = 1080p or 1920x1080 ; Ultra HD= 4K or 3840x2160.
- Different video presets can be used :
- 16:9 AVC (H.264)
- 1:1 AVC(H.264), a square format
- 4:3 AVC (H264)
- 9:16 AVC (H.264), a Reel format
> Transcoding preset
- Transcoding: Conversion of video files into different profiles with an HLS or Dash streaming protocol.
When you open your back office, when you go to "upload file", 3 profiles will be activated by default, 2 HD + 1 SD (settings can be modified in "Media management > Media sources").
- One profile = Resolution + bitrate
Choosing a high transcoding preset will result in high bandwidth consumption as the amount of information to be transmitted will be significant.