EPINFO150 Information and Communication Technology

Introduction 

Many users are accessing mobile devices and computer systems in order to perform communication and video streaming related activities. Multimedia is a kind of communication platform that provides a way where multimedia contents like texts, images, audio and video files can be shared over mobile devices and internet networks. Real-time multimedia refers to the process of accessing real-time information shared by the communities, communication networks and individuals. The developers have implemented live video streaming applications and platforms for the individuals by which real-time contents can be watched and accessed by the individuals through mobile and computer systems. It is found that real-time video streaming is completely based on the multimedia techniques and communication technologies by which the video contents are shared to the users without requiring connecting cables and resources. The aim of this research is to critically analyze the importance of multimedia communication in the field of real time video streaming.

Real time video streaming application 

Real time video streaming is a kind of technology that enables the users to access live streaming services provided by the companies and downloading video content while watching from mobile devices and computer systems. Such kinds of multimedia platforms are beneficial and effective for individuals by which they can save times on buffering and increase the accessibility of real time video contents. Most of individuals worldwide are using social media platforms and streaming applications in their smartphones that also helps to watch real time content related to the current news, trends, sports activities and other video contents.

Aguiar, et al., [1] agreed and reported that in the case of video streaming; multimedia is a term that defines numerous forms of information containing audio, video, images, graphics and animation related contents. Using video streaming networks and platforms, individuals are capable to access live video contents, movies, serials and other multimedia contents where video streaming applications are developed by the companies. Hotstar is one of the common mobile applications used by the individuals in order to access real time video contents and stream live information shared by the communities and TV channels. Mainly, video streaming applications are connected with the internet networks and communication channels that enable individuals to provide commands as per their interest in order to access or stream the specific communication channel.

Ahmed, [2] reported that the Real-Time Streaming Protocol (RTSP) is a kind of real time accessing video technology that is mainly used to switch audio/video communication among two endpoints and facilitate the transport of low-latency streaming content crossways the internet. Along with the “Real-Time Messaging Protocol (RTMP)”, RTSP once conquered the streaming scenery which is no longer available. Streaming is real-time, and well-organized than downloading multimedia contents and files. If video content is transferred, a copy of the whole file is protected onto an expedient's hard drive, and the cinematic files cannot play until the whole file surfaces downloading. However, in the case of real time streaming, there is no need to download the content as the streaming platforms and an application enables the individuals to access videos in real time [10]. The developers have implemented live video streaming applications and platforms for the individuals by which real time contents can be watched and accessed by the individuals through mobile and computer systems.

It is demonstrated that real time video streaming is completely based on the UDP and TCP protocols which are related to the multimedia communication networks by which accessing the digital contents and video files can be done in a significant manner.

UDP refers to the user datagram protocol and TCP is a transmission control protocol both are utilized for transferring data packets from one network to another easily and in video streaming data, packets includes videos contents which are shared through communication channels and servers [2]. Such kinds of multimedia platforms are beneficial and effective for individuals by which they can save times on buffering and increase the accessibility of real time video contents. Most of individuals worldwide are using social media platforms and streaming applications in their smartphones that also helps to watch real time content related to the current news, trends, sports activities and other video contents.

TCP opens a devoted association before conveying video streaming based data, and it confirms all video packets arrive. As compared to TCP based video streaming communication, the UDP network does neither of these things. It is found that TCP based communication protocols used in real time video streaming are more reliable, but communicating video contents via UDP does not require more time and efforts, although particular data packets can be lost [4]. The advanced video streaming networks and channels are based on the RTSP protocols and SIP protocols which are capable to deliver larger security and scalability to the users by which live videos and data can be streamed in a significant manner. Al-hammouri, et al., [3] identified that streaming real time videos completely depends on the connectivity of the data speed where lesser data rate can produce barriers and buffering issues in the streaming networks and applications. It is significant for the individuals to include larger data rate and advanced communication networks that provides higher connectivity so that accessibility of video contents through streaming applications can be done without any interrupt.  

Multimedia techniques used in video streaming 

There are numerous multimedia techniques are used in the field of real time video streaming application. These techniques and protocols are described below:

It is one of the major multimedia techniques used in the real time video streaming that provides a platform where transport stream networks can be developed and connected with the communication channels so that video signals can be converted into data packets. As compared to the MPEG1, MPEG2, and MPEG3, MPEG4 is a reliable and cost-effective multimedia technique that enables individuals to compress larger video files into small ones by which the accessibility can be improved effectively.

It is capable to support adaptive-bitrate based real-time video streaming which means users will continuously receive the greatest video quality that their present internet association speed can provision [4]. This inclines to vary second to second and MPEG4 multimedia network fixes certain long-standing practical issues with distribution and compression. Another benefit is that the MPEG4 protocol is codec agnostic by which it may be utilized with almost every streaming encrypting format. It has the potential to support Encrypted Media Extensions (EME) and Media Source Extension (MSE) that are completely based on APIs used for communication networks.

SIP and SDP techniques 

SIP refers to the session initiation protocol which is a kind of multimedia protocol used in the video streaming networks and applications that works in conjunction with the transportation networks and communication channels. It is a voice over protocol that enables individuals to provide voice-based commands and signals to the video streaming applications so that content can be searched without requiring text messages [1]. For example, YouTube is a common real-time video streaming platform that has implemented SIP-based multimedia techniques which are capable to include voice command feature for the customers by which finding relevant video contents can be done through voice recognition systems.

While SIP connects with IP endpoints to argument signalling particulars, SDP takes session-related info to help members join or obtain details of the video streaming session [5]. It is capable to transfer three kinds of information, for example, session explanation, time explanation, and media explanation. It is demonstrated that SDP based multimedia streaming networks do not transport such details themselves. In its place, session explanations are comprised as a consignment of SIP communications. Encoded packs of audio and video data sets linked with the real-time streaming networks are approved by the real-time transport protocol (RTP), a particular application layer procedure used for accessing or streaming video contents through mobile devices and applications. RTP sittings are self-governing and RTP networks run parallel to SIP sessions where video streaming related activities can be done in a significant manner.

RTMP multimedia technique 

RTMP refers to the real-time messaging protocol which is mainly used in video streaming applications and networks as it is capable to provide reliable and effective multimedia protocols by which streaming related activities can be performed in less time. In this digital generation, RTMP has typically utilized for consumption live streams using an RTMP-enabled encoder that helps to securely access streaming platforms where video packets are encoded into the digital signals.

Simply, when users set up an encoder to transfer video feed to the streaming stage, then the video content will spread the CDN via the RTMP multimedia technique and enables the users to effective stream real-time video contents easily [6]. RTMP is infrequently included as a user-facing video streaming network as it is dependent on the Flash plugin that has been overwhelmed with safety that can impact on the stored datasets and video streaming platforms negatively. Therefore, it is difficult for the communication networks to manage security concerns while using RTMP multimedia protocols due to which real-time video streaming platforms are not accessing such networks.

RTSP multimedia technique 

RTSP refers to the real-time streaming protocol that has the capability to develop effective video streaming platforms and systems for individuals. It is mainly implemented for controlling streaming media servers in communication and entrainment systems like movies, TV serials and other networks. RTSP 2.0 is an advanced version of the RTSP that provides a platform where video streaming protocols are used for developing and controlling media sessions between the communication channels and mobile devices [7]. The major feature of the RTSP protocol is that it is capable to support low latency streaming and is a better selection for streaming use cases for real-time video streaming and communication channels. However, RTP and RTCP are effective and reliable multimedia techniques that are now added in the advanced video streaming applications by which larger quality video contents can be delivered to the users within their desired communication networks and systems. With the health of such multimedia communication techniques and protocols, individuals are capable to create their own video streaming applications and platforms in a significant manner.

HDS and HLS multimedia streaming protocols 

The term HDS refers to the HTTP dynamic streaming protocol that has the capability to reduce the problems and challenges related to the RTMP protocols and provide adaptive streaming with the larger quality video contents. It is demonstrated that HDS is one of the reliable and cost-effective protocols and capable to provide effective latency in the context of real-time video streaming [7]. HLS refers to HTTP based live streaming which is a type of multimedia technique that is mainly developed and proposed by Apple in order to enable the users for streaming live video contents on their mobile devices and systems.

Most of the individuals worldwide are using social media platforms and streaming applications on their smartphones which are linked with the HDS based multimedia networks that help to watch real-time content related to the current news, trends, sports activities and other video contents. Such kind of multimedia protocol enables a stream to spread as numerous audiences as possible, building HLS the harmless protocol nowadays for ascending a live stream to enormous spectators. For instance, individuals can usage such multimedia protocol for streaming live video on the website with a modest embed code [5]. As far as topographies, the HLS typical also provisions adaptive-bitrate flowing, animatedly bringing the finest conceivable video excellence at any instant. Therefore, all these are major multimedia techniques and protocols used in the implementation of real-time video streaming networks and channels for users.

Communication technologies used in video streaming 

In the context of real-time video streaming, communication is a major part where the uses of higher data transmission rate based communication networks can enable the users to manage barriers and buffering related issues in a significant manner. There are the following communication technologies and networks are used in real-time video streaming:

Wi-Fi

It is one of the major communication technologies used in real-time video streaming where individuals are capable to connect their mobile devices with routers and Wi-Fi-based systems so that connectivity can be maintained and accessibility of the live videos can be done effectively.

In terms of power consumption, Wi-Fi is less power consumption that provides a way where users can connect two or more devices with a communication channel and real-time video streaming can be performed in a significant manner [7]. It is flexible for the larger communication networks by which video streaming over mobile devices, computer systems, smart TVs and laptops can be done effectively. Currently, Wi-Fi 6 is included and implemented in the real-time video streaming network which is capable to provide around 10 Gbps data transmission rate and larger flexibility to the customers. Therefore, using such communication protocol, individuals can develop wireless communication networks in their homes and access real-time video contents in less time.

Cellular networks (4G and 5G)

A cellular network is defined as a communication technology that is used in smartphones and mobile devices in order to connect networks with the data transmission servers so that delivery of multimedia contents can be done effectively. 4G technology is mainly used by the users in their smartphones that provide a larger data rate and flexibility by which transmission of data can be done from a long distance. In the context of real-time video streaming, cellular communication networks are used that allows individuals to stream and access video contents on their mobile and computer devices effectively. It is examined that most of the users worldwide are accessing YouTube platform in order to watch videos where cellular networks are included that help to stream live video contents related to news, sports, trends and other communication channels [8]. 5G is the future of cellular network that will be capable to change the way of communication where the problems and limitations linked with the 4G technology will be reduced and the effectiveness and reliability of the real-time streaming will be increased in a significant manner.

Lan and Wlan

LAN refers to a local area network which is a kind of communication network that has the potential to provide a larger data transmission rate and security to the communication protocols linked with real-time video streaming. The uses of LAN networks enables the individual to access and stream video applications over larger platforms like computer systems, smart TVs and projectors so that buffering issues can be managed. WLAN is defined as wireless LAN which is capable to connect real-time video streaming systems with the computer and mobile devices without requiring connecting cables [9]. As compared to the wired LAN, wireless LAN is more flexible, scalable and effective by which connectivity to the video streaming applications and servers can be provided remotely and performance can be improved effectively. Therefore, all these are reliable and significant communication technologies and networks used in real-time video streaming applications.

Conclusion

It may be summarized that real-time video streaming is an advanced technology that enables individuals to stream live video contents over the internet and communication networks. It is found that  In this digital generation, RTMP is typically utilized for consumption live streams using an RTMP-enabled encoder that helps to securely access streaming platforms where video packets are encoded into the digital signals. Using video streaming networks and platforms, individuals are capable to access live video contents, movies, serials and other multimedia contents where video streaming applications are developed by the companies. It is demonstrated that real-time video streaming is completely based on the UDP and TCP protocols which are related to the multimedia communication networks by which accessing the digital contents and video files can be done in a significant manner. Such kind of multimedia protocol enables a stream to spread as numerous audiences as possible, building HLS the harmless protocol nowadays for ascending a live stream to enormous spectators. It is examined that most of the users worldwide are accessing YouTube platform in order to watch videos where cellular networks are included that helps to stream live video contents related to news, sports, trends and other communication channels. MPEG4 protocol is codec agnostic by which it may be utilized with almost every streaming encrypting format. It has the potential to support Encrypted Media Extensions (EME) and Media Source Extension (MSE) that are completely based on APIs used for communication networks. In terms of power consumption, Wi-Fi is less power consumption that provides a way where users can connect two or more devices with a communication channel and real-time video streaming can be performed in a significant manner.

References

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