Steps Followed In Video Streaming
For videos to be streamed live over the internet, certain electronic gadgets must be used together. A camera to take the videos, an encoder to digitize content in the videos, a video publisher and a network to distribute and deliver transferred content.
When media is streamed live, storing it in hard disks is not required. If a media is streamed on demand, a hard disk saves the media content where it is played from.
For a successful stream to occur without losses, tested and recommended broadband speeds are used. The storage size of a media for streaming purposes is computed from bandwidth required to stream and length of the media. Media streams in form of videos are compressed using a codec.
In a bistream container, encoded audio and video streams are assembled. The bistream is then delivered to a client from a server using transport protocols. A control protocol is used by a streaming client to interact with the server. There are different kinds of network protocols that deliver content to a client.
A network protocol for delivering content in form of a series of small packets is called a datagram. It has no guaranteed delivery but it is efficient and simple to use. A transmission control protocol is more reliable since it delivers all content correctly. Unicast protocols are used to send separate copies of media stream from one server to several recipients.
Multicasts were developed to reduce duplication of data when it is sent to a number of unicast content receiving recipients. Media streams already recorded are sent between computers using peer to peer protocols. Error correction techniques are used to detect and recover lost data during delivery.
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