Ways Video Encoder Performance Improves Streaming Quality Mark Donnigan Vice President Marketing Beamr



Read the original LinkedIn article here: How Video Encoder Computing Efficiency Can Impact Streaming Service Quality

Written by:

Mark Donnigan is VP Marketing at Beamr, a high-performance video encoding technology company.


Computer system software application is the bedrock of every function and department in the enterprise; accordingly, software video encoding is vital to video streaming service operations. It's possible to enhance a video codec execution and video encoder for 2 however seldom three of the pillars. It does say that to provide the quality of video experience customers expect, video distributors will need to examine business options that have actually been performance enhanced for high core counts and multi-threaded processors such as those readily available from AMD and Intel.

With so much turmoil in the distribution design and go-to-market organisation strategies for streaming home entertainment video services, it may be tempting to press down the concern stack choice of new, more efficient software video encoders. With software application consuming the video encoding function, calculate performance is now the oxygen required to grow and win against an increasingly competitive and crowded direct-to-consumer (D2C) marketplace.



How Video Encoder Computing Efficiency Can Impact Streaming Service Quality

Till public clouds and ubiquitous computing turned software-based video operations mainstream, the procedure of video encoding was performed with purpose-built hardware.

And then, software ate the hardware ...

Marc Andreessen, the co-founder of Netscape and a16z the famous endeavor capital company with financial investments in Foursquare, Skype, Twitter, box, Lyft, Airbnb, and other similarly disruptive companies, penned an article for the Wall Street Journal in 2011 titled "Why Software application Is Consuming The World." A variation of this post can be discovered on the a16z.com website here.

"6 decades into the computer transformation, 4 decades because the development of the microprocessor, and 2 years into the rise of the modern Web, all of the innovation required to change industries through software lastly works and can be extensively delivered at international scale." Marc Andreessen
In following with Marc Andreessen's prophecy, today, software-based video encoders have actually practically totally subsumed video encoding hardware. With software applications devoid of purpose-built hardware and able to work on ubiquitous computing platforms like Intel and AMD based x86 devices, in the data-center and virtual environments, it is entirely precise to say that "software application is consuming (or more properly, has actually eaten) the world."

However what does this mean for an innovation or video operations executive?

Computer system software application is the bedrock of every function and department in the enterprise; appropriately, software application video encoding is necessary to video streaming service operations. Software application video encoders can scale without requiring a direct boost in physical area and energies, unlike hardware. And software can be moved the network and even whole data-centers in near real-time to meet capacity overruns or temporary rises. Software application is much more versatile than hardware.

When dealing with software-based video encoding, the three pillars that every video encoding engineer must deal with are bitrate effectiveness, quality preservation, and calculating performance.

It's possible to enhance a video codec implementation and video encoder for 2 however rarely three of the pillars. The majority of video encoding operations thus focus on quality and bitrate efficiency, leaving the calculate performance vector open as a sort of wild card. As you will see, this is no longer a competitive approach.

The next frontier is software computing performance.

Bitrate efficiency with high video quality needs resource-intensive tools, which will result in slow operational speed or a considerable boost in CPU overhead. For a live encoding application where the encoder should run at high speed to reach 60 frames-per-second (FPS), a compromise in bitrate efficiency or absolute quality is often needed.

Codec intricacy, such as that needed by HEVC, AV1, and the forthcoming VVC, is outpacing bitrate effectiveness advancements and this has produced the requirement for video encoder efficiency optimization. Put another method, speed matters. Traditionally, this is not an area that video encoding specialists and image researchers have required to be worried about, but that is no longer the case.

Figure 1 highlights the benefits of a software application encoding implementation, which, when all attributes are normalized, such as FPS and objective quality metrics, can do two times as much deal with the specific very same AWS EC2 C5.18 xlarge circumstances.

In this example, the open-source encoders more information x264 and x265 are compared to Beamr's AVC and HEVC encoders, Beamr 4, and Beamr 5.

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For services requiring to encode live 4Kp60, one can see that it is possible with Beamr 5 however not with x265. Beamr 5 set to the x264 comparable 'ultrafast' mode can encode 4 private streams on a single AWS EC2 C5.18 xlarge instance while x265 operating in 'ultrafast' can not reach 60 FPS at 4K. As you can see in this poignant example, codec performance is directly associated to the quality of service as an outcome of less makers and less complex encoding frameworks required.

For those services who are mainly interested in VOD and H. 264, the right half of the Figure 1 graphic shows the efficiency benefit of a performance optimized codec application that is established to produce very high quality with a high bitrate efficiency. Here one can see as much as a 2x advantage with Beamr 4 compared to x264.

Video encoding calculate resources cost genuine cash.

OPEX is thought about carefully by every video distributor. Expect entertainment experiences like live 4K streaming can not be provided reliably as an outcome of a mismatch in between the video operations capability and the expectation of the consumer.

Due to the fact that of performance constraints with how the open-source encoder x265 uses calculate cores, it is not possible to encode a live 4Kp60 video stream on a single device. This does not imply that live 4K encoding in software application isn't possible. It does state that to deliver the quality of video experience consumers expect, video suppliers will need to assess commercial solutions that have been performance enhanced for high core counts and multi-threaded processors such as those offered from AMD and Intel.

The requirement for software application to be enhanced for greater core counts was just recently highlighted by AMD CTO Mark Papermaster in an interview with Tom's Hardware.

Video suppliers wishing to utilize software for the versatility and virtualization options they supply will encounter excessively made complex engineering difficulties unless they select encoding engines where multi-processor scaling is native to the architecture of the software encoder.
Here is a short article that reveals the speed benefit of Beamr 5 over x265.

Things to believe about concerning computing efficiency and performance:

Don't chase after the next advanced codec without thinking about initially the complexity/efficiency ratio. Dave Ronca, who led the encoding group at Netflix for 10 years and just recently delegated sign up with Facebook in a comparable capability, just recently released an excellent short article on the subject of codec complexity titled, "Encoder Complexity Hits the Wall." It's appealing to believe this is just a concern for video banners with tens or hundreds of millions of customers, the very same compromise factors to consider should be considered regardless of the size of your operations. A 30% bitrate cost savings for a 1 Mbps 480p H. 264 profile will return a 300 Kbps bandwidth cost savings. While a 30% savings at 1080p (H. 264), which is encoded at 3.5 Mbps, will give more than triple the return, at a 1 Mbps savings. The point is, we need to thoroughly and systematically consider where we are spending our calculate resources to get the optimum ROI possible.
An industrial software application option will be developed by a dedicated codec engineering group that can stabilize the requirements of bitrate efficiency, quality, and calculate efficiency. This is in stark contrast to open-source tasks where factors have separate and individual priorities and programs. Exactly why the architecture of x264 and x265 can not scale. It was developed to achieve a different set of tradeoffs.
Firmly insist internal groups and experts conduct compute performance benchmarking on all software encoding options under factor to consider. The 3 vectors to determine are absolute speed (FPS), individual stream density when FPS is held consistent, and the overall number of channels that can be created on a single server utilizing a nominal ABR stack such as 4K, 1080p, 720p, 480p, and 360p. All encoders must produce comparable video quality throughout all tests.
With so much upheaval in the distribution design and go-to-market service strategies for streaming home entertainment video services, it might be appealing to press down the priority stack selection of brand-new, more effective software application video encoders. With software application consuming the video encoding function, compute performance is now the oxygen required to grow and win against an increasingly competitive and congested direct-to-consumer (D2C) marketplace.

You can try Beamr's software application video encoders today and get up to 100 hours of complimentary HEVC and H. 264 video transcoding on a monthly basis. CLICK ON THIS LINK

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