Learning

A few weeks ago, I wrote about the VMAF Phone Model which measures VMAF score for viewers watching on a mobile phone. Since then, I gave a presentation at NAB on VMAF and ran some calculations comparing the phone and default models. I share those below. First, have a quick look at the three VMAF models shown on the slide …

Just a quick note to let you know that I’ll be speaking at the NAB Streaming Summit on Using VMAF, Netflix’s Video Encoding Metric to Measure QoE. Description: Netflix uses video quality metric VMAF that combines human vision modeling with machine learning, to make automated encoding decisions in their per-title/per-scene encoding workflow. This presentation will cover what VMAF is, how …

Embedded below is a free lesson from my course, Produce Videos with FFmpeg: The Beginner’s Course (http://bit.ly/learn_ffmpeg). The previous lesson in the course describes when you can use the -s command to set resolution; this lesson details your options when you can’t. This typically occurs when the display aspect ratio of your output is different from your input, which happens often …

I’m launching a new course entitled Encoding and Packaging for Multiple Screen Delivery. It’s an advanced course detailing how to create and configure encoding ladders using objective quality metrics like VMAF, packaging for DASH/HLS (both static and dynamic), CMAF, per-title encoding, and more. The course is designed for professionals who need to get up to speed on these topics and …

My article How to Launch a Cloud Encoding Computer just posted on the Streaming Media Global site. Good thing, too, because I had just started a consulting project that required setting up and encoding on multiple AWS instances. Always handy to have a step-by-step guide, so I printed the article draft and went through it point by point to get …

The video below shows two tools that I’ve installed on every computer that will run them; MediaInfo on all Windows, Linux, and Mac workstations, and Bitrate Viewer, which is Windows only. If you don’t know about these tools, you’ll find the seven-minute video very, very useful. As a preview, MediaInfo provides information about my H.264, HEVC, VP9, and AV1-encoded files …

I just finished my Produce Videos with FFmpeg course which I recorded with Camtasia, edited in Adobe Premiere Pro, and output in the Adobe Media Encoder (AME). I outputted from AME at about 10 Mbps to ensure quality, but now I’m left with 3 GB of files to upload. I know the data rate is unnecessarily high, but AME doesn’t …

I recently finished a streaming consulting project with AMC Networks and was pleased to receive the following LinkedIn recommendation from their VP of Video Products. It was great working with Greg and his team with the gorgeous content from AMC. Beyond this work with AMC, I’ve helped media companies and video publishers fine-tune their encoding parameters, modernize their encoding ladders, …

W4. Encoding Live & VOD For HEVC/HLS Monday, November 12: 1:30 p.m. – 4:30 p.m. Apple’s support for HEVC in HLS is a groundbreaking event that opens up hundreds of millions of HEVC capable players. If supporting this spec is on your short-term development schedule, check out this workshop. The workshop starts by reviewing the new spec and sharing playback …