Ozer is a leading expert on H.264, H.265, and VP9 encoding for live and on-demand production. In his consulting practice, Ozer helps streaming publishers produce highly optimized and deliverable streams and to choose encoders, transcoders, and workflows that optimize cost, efficiency and flexibility. Ozer is the owner of the Streaming Learning Center and is a contributing editor to Streaming Media Magazine.

Facebook Introduces New 360°/VR Video Quality Metric

VR and 360° video has all of the compression-related issues of flat video, and then some. Facebook’s new metrics, called SSIM360 and 360QVM, might simplify quality analysis for developers in the future, particularly if Facebook open sources the metrics. In a blog post called “Quality Assessment of 360° Video View Sessions,” Facebook will announce two objective quality…

Join Me in Las Vegas at NAB

Just a quick note to let you know that I’ll be speaking twice at NAB in Las Vegas next week; once as host of a panel discussion on HEVC and AV1, the other a session on how to use objective quality metrics to assist encoding configurations. Details are below. If you’re at NAB and free,…

AV1 Arrives, but IP Questions Linger

After three years and multiple delays, the Alliance for Open Media froze its AV1 codec bitstream, thus setting up a cacophony of HEVC/AV1 face-offs in booths and meeting rooms at the upcoming NAB Show. These comparisons will largely dictate which codec will replace H.264 as the “it” codec for streaming to desktops, mobile devices, Smart TVs,…

Moscow State University Updates its Video Quality Measurement Tool

Moscow State University’s Video Quality Measurement Tool was already good. Enhancements in the new version, including new metrics and the ability to run multiple analyses simultaneously, make it even better. Moscow State University’s Video Quality Measurement Tool (VQMT) has always been one of the least expensive and most functional quality measurement tools available. The latest…

HEVC Advance Cuts Content Fees on Streaming

HEVC Advance announced today that it is eliminating subscription and title-by-title royalty fees for non-physical HEVC content distribution, making all streaming, cable, over-the-air broadcasts, and satellite distributions of encoded HEVC content royalty free. HEVC encoded content sold on Blu-ray discs and other storage devices will continue to be subject to a royalty. In a related…

Player Testing (Don’t Assume it’s Working Well)

The graph below shows two off-the-shelf players retrieving the same HLS manifest under the similar test conditions, which vary from 512 kbps at the low end to 5120 kbps at the top end. On the left, Player A, stopped retrieving video multiple times during the low bandwidth transmissions, stalling playback, which are the red lines…