It all depends based on factors such as stream quality, encoding and other conditions that are essential for live broadcast. Also, it’s required to have your selected bit rate that approximately match the resolution (i.e. SD, HD, etc) you’ve chosen to publish. If your program’s bit rate doesn’t relate with your frame size, the quality of the stream will be reduced until the bit rate value is processes to meet the value which usually results in poor visuals. The challenge of encoding is to digitize and compress your video and audio content to a bandwidth-friendly file size without compromising quality. For more information refer to this guide on
live streaming bandwidth for a reliable successful live video.