Bottlenecks for Video Playback Performance & Remedy to Cure Them


Importance of Video Playback Performance

Well, one of the biggest issues that Pinterest or any other video-based social media platform is facing today is offering video playback guarantee. No, the portal can today provide the high performing videos to their users.

There might be numerous reasons behind the fast loading of videos, like geographical location, smartphone hardware and most importantly the speed of the network. This is all technical stuff and no user pays attention to it, they just want high performing playback videos. That’s why if user founds 3 seconds delay in the video loading, then they will immediately switch.

This low video playback performance causes loss of 13% user to Pinterest and other social media portals. So, we need to fix this.

But, how?

We need to adopt the methodology of doctors to cure this low-performance syndrome. To find the remedy for the low video playback performance, first, we need to understand the symptoms of the disease.

Top 5 Symptoms of Low Video Playback Performance

#Symptom 1: Video Load Rates

Okay, so how many of you have ever clicked on a video and get the circular streaming sign in return for ages? Well, we can hear numerous positive responses here. So, the first symptom here is that if you are not getting video streaming immediately and have to wait for numerous seconds, then you need to fix this. To fix this you have to study following things:

  • Perceived Wait Time (PWT). It is the time between when the user wants to see a video and the actual time when the video plays.
  • Time to the first frame (TTFF). The time between the video request and the time when the video starts to load.
  • Network-level metrics. Technical metrics to analyze the connection performance.

#Symptom 2: Video Pauses

This happens a lot in India, suddenly video stops midway when you are about to view the important part. This always annoys users, and following tests should be done in lieu to fix this:

  • A number of stalls per-play. This means how many times your video stops midway and starts buffering. It mainly depends on the size of the video as longer videos have a number of stalls per-play.
  • Time-to-resume. How much time it takes to restart again for the stalled video.

#Symptom 3: Low Picture Quality

When the bandwidth isn’t sufficient, then the low picture quality get transported. This is a very common problem in video streaming which should be fixed promptly. To Improve picture quality following scenarios should be tested:

  • Video variant usage. To measure the how many times and video variant is used.
  • Bandwidth Utilization. How much bandwidth is utilized by the streaming videos?

#Symptom 4: It Takes Time To Resume From Scrubbing

Whenever we scrub video bar ahead of backward, then it takes an insane amount of time to resume video streaming. This is measured with the help of Trick Mode Delay metrics.

#Symptom 5: Video Is Out Of Sync With Audio

Sometimes audio of the video isn’t synced with video. This may be due to plenty of different reasons. But, mostly it is because of the end devices underpowered.

The remedy for Video Playback Performance

Okay, so after searching few professional blogs and reviewing the different data, we found a powerful and dynamic solution. That would be adaptive bitrate streaming, which is currently the high-end video delivery system of the industry.

ABR streaming system implemented two power-packed technologies called Apple’s HLS and MPEG-DASH. Both of these technologies work by encoding a source video file into multiple streams with different bitrate. Then, those steaming files are split into smaller segments of the same duration.

The video player that regularly switches between the segments to retrieve the video. And, enables users to view videos even in the slow network and jump to the higher quality stream when the signal strengthens.

But, the tricky part here in implementing the ABR streaming is that every stream needs proper configuration. It’s worth mentioning that there’s no single configuration that can be universally applied to all products. So, implementing ABR requires long hours of hard work. But, trust us, in the end, your hard work would really get paid.

Thus, people, stop wasting your time on long buffering and start working on optimizing the video playback performance of your videos.

About the author

Arpit Agarwal

I am a freelancer content writer, web developer and Video editor who loves to write technical stuff and on the other hand makes awesome videos as well. I like to make people happy with my writing and also try to make sure, you come back to read more.

By Arpit Agarwal

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