alt

Jan Ozer

Avatar photo
I help companies train new technical hires in streaming media-related positions; I also help companies optimize their codec selections and encoding stacks and evaluate new encoders and codecs. I am a contributing editor to Streaming Media Magazine, writing about codecs and encoding tools. I have written multiple authoritative books on video encoding, including Video Encoding by the Numbers: Eliminate the Guesswork from your Streaming Video (https://amzn.to/3kV6R1j) and Learn to Produce Video with FFmpeg: In Thirty Minutes or Less (https://amzn.to/3ZJih7e). I have multiple courses relating to streaming media production, all available at https://bit.ly/slc_courses. I currently work as www.netint.com as a Senior Director in Marketing.

Testing Video Quality With Apple AVQT

In the first article in this series, Baby Steps with Apple’s Advanced Video Quality Tool and Quality Metric, I detailed what Apple’s Advanced Video Quality Tool (AVQT) is and how to use it. In this article, I tested multiple video files with Apple AVQT and describe my user experience. In the next article, I’ll review how AVQT scoring compares to …

Read More »

How to Choose Your Bitrate Control Technique

This article is derived from a lesson in Streaming Media 101: Technical Onboarding for Streaming Media Professionals. If you’re looking for an efficient way to get up to speed on key streaming terms, technologies, workflows, and best practices, check out the course here.  Every time you encode a video file with a distribution-oriented codec like H.264, HEVC, VP9, or AV1, …

Read More »

The past, present, and future of per-title encoding

Figure 2. Finding the Convex Hull.

Maya Angelou once said that “You can’t really know where you are going until you know where you have been,” and so it is with per-title encoding. What began as a one-dimensional data rate adjustment that reflected the simple reality that all videos encode differently is now a complex analysis that incorporates frame rate, resolution, color gamut, and dynamic ranges, …

Read More »

AV1 Codec: AOMedia Video 1 Explained

This article on the Wowza website provides a quick overview of the AV1 codec: what it is, how it performs, what it costs, and what it’s good for today. It’s useful if you want to get a quick feel for where AV1 fits in with other codecs. The article is the fourth in a five-part series that covers H.264, VP9, …

Read More »

Speech-to-text In Premiere Pro – Fast, Easy, Accurate, and Free

This video tutorial teaches you how to convert speech-to-text in Premiere Pro. I’ve been using Premiere Pro for more years than I care to think about, and most recent new features, as you’d expect with a mature product, are incremental. This new speech-to-text feature is absolutely an exponential addition that’s going to change how we think about captioning and transcribing …

Read More »

New Macintosh Lessons Added to Streaming Media 101

Just a quick post to advise potential students that we’ve supplemented the course Streaming Media 101 : Technical Onboarding for Streaming Media Professionals with five new Mac-based lessons, which are: Installing and using MediaInfo for the Mac Installing and using MP4 Bitrate Viewer Installing and using Apple’s Advanced Video Quality Tool (AVQT) (Also added to our course on video metrics) …

Read More »

H.265 Codec: High Efficiency Video Coding (HEVC) Explained

This article on the Wowza website provides a quick overview of the HEVC codec: what it is, how it performs, what it costs, and what it’s good for. It concludes with a section on what you need to know to effectively deploy the HEVC codec using the Wowza Streaming Engine software. The article is the third in a five-part series …

Read More »

Baby Steps with Apple’s Advanced Video Quality Tool and Quality Metric

I’m adding some lessons that identify and describe the operation of Mac video utilities to the online course Streaming Media 101 and took this as an opportunity to have a look at Apple’s Advanced Video Quality Tool  (AVQT) which launched at the company’s 2021 World Wide Developers Conference. I’m making the lesson available as a lesson of the week, immediately …

Read More »

MediaInfo and BitRate Viewer – Essential Tools for Video Analysis

Streaming producers need tools to explore different encoding options and verify their work. Here are two free Windows tools that I couldn’t live without. MediaInfo MediaInfo is a video analysis tool that displays the most significant data points regarding a video file, including resolution, data rate, codec, bit depth, frame rate, duration, etc. It’s available for download here, and there …

Read More »

Computing Break Even on Codec Deployments

To a great degree, video codec adoption is driven by the simple break-even formula presented above. You put your costs on top, your savings per hour on the bottom, and come up with the number of hours of video you have to distribute to recoup your costs and start hitting the plus column. If you’re in a TL/DR frame of …

Read More »