Jan Ozer

@janozer

Video producer, consultant and author of Producing Streaming Video for Multiple Screen Delivery.

Galax, Virginia
streaminglearningcenter.com
Joined November 2009
440 Photos and videos Photos and videos

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  1. Sep 10

    A line of videos entitled A Closer Look enjoyed very solid view counts in the low millions, yet YouTube encoded them all in VP9. Read the full article: Which Codecs Does YouTube Use? ▸

    1 retweet 2 likes
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  2. Sep 10

    Even after adjusting for Apple's comments, it was clear that AVQT saw video quality in a fundamentally different way than VMAF and SSIMPLUS, particularly at the low end. AVQT Compared to VMAF and SSIMPLUS:

    4 likes
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  3. Sep 9

    Most conversations about user experience involve Quality of Service and Quality of Experience. While related, these are separate concepts that are measured and utilized in totally different ways. This article presents a high-level view of QoS and QoE. ▸

    6 likes
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  4. Sep 9

    When I tested clips encoded with the x264 codec, AVQT performed perfectly. As I learned, AVQT isn't compatible with x265 files produced by FFmpeg unless you tag them as described in this article. Read more 👉

    3 retweets 4 likes
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  5. Sep 8

    Webinar: Choosing the Optimal Remote Production Technology and Workflow Corey Behnke (Live X) will detail how to produce remote events via onsite cameras with signals streamed to a central location via 4G/5G for production and output. Read more 👉

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  6. Sep 7

    If you’ve been looking for a fast and efficient way to learn about available remote production alternatives, you’ll find this webinar invaluable. Read more 👉

    1 like
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  7. Sep 7

    Which Codecs Does YouTube Use? The data suggest that AV1 is only worthwhile for videos with view counts in the mid-to-high millions, but VP9 is worth considering for view counts in excess of a few thousand. ▸

    1 reply 2 retweets 13 likes
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  8. Sep 6

    Webinar: Choosing the Optimal Remote Production Technology and Workflow Three experts present 3 remote production alternatives detailing cost, video quality, user experience, and technical complexity. Learn which option is best for you. Technology:

    1 like
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  9. Sep 6

    In other words, to save time, which is particularly critical with AV1 because of its comparatively slow encoding times. Read the full article: Five Star Review for AV1 Encoding Course ▸

    2 likes
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  10. Sep 6

    The course includes over 3 hours of video in 75 concise and logical lessons and quizzes that accelerate learning and enhance retention. The course is ideal for those seeking to learn how to install, configure, and effectively deploy WSE. Read more 👉

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  11. Sep 1

    Webinar: Choosing the Optimal Remote Production Technology and Workflow In this free webinar, 3 remote production experts share their favored production technologies and workflows, comparing OPEX/CAPEX costs, technical complexity, user experience, and video quality.

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  12. Aug 31

    This article describes how to compute breakeven on new codec adoption, and provides a Google Sheet that can help with the Breakeven analysis. Read: Computing Break Even on Codec Deployments ▸

    1 retweet 1 like
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  13. Aug 31

    This article covers what Apple’s Advanced Video Quality Tool (AVQT) command-line tool/metric is and how it works. Others will describe my user experience with the metric and how its scores compare with other metrics. Read more 👉

    3 likes
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  14. Aug 30

    Per-title encoding customizes the encoding parameters of the encoding ladder for the characteristics of the video file. This lesson tracks the progression of per-title technologies and details their impact. ▸

    2 likes
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  15. Aug 30

    Presets control the quality/encoding time tradeoff for each encoder. Learn which AV1 preset delivers the encoding time/quality balance for your encodes. Read more 👉

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  16. Aug 30

    I created this chart for the Alliance for Open Media aomenc standalone encoder, and tested with cpu-used 3 because it seemed to offer the optimum blend of quality and encoding time. Read more 👉

    2 likes
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  17. Aug 27

    When encoding for live transcoding, you send a stream to the cloud which the service will transcode into an encoding ladder. So, check outbound bandwidth and the encoding parameters recommended by the service. Read Beginners Guide to Encoding H.264👉

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  18. Aug 26

    Which Codecs Does YouTube Use? This article reviews which codecs YouTube uses and suggests that AV1 is only worthwhile for videos with view counts in the mid-to-high millions, but VP9 is worth a look when view counts exceed a few thousand.

    3 likes
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  19. Aug 26

    Compute bandwidth savings and QoE of adding a new codec by creating a new encoding ladder with the new codec and measuring the comparative quality of the different rungs, via subjective tests, or using a metric like VMAF or SSIMPLUS. Read more 👉

    1 retweet
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  20. Aug 24

    This blog describes what adaptive bitrate (ABR) streaming is and its components and operation. It’s intended for newbies and provides a high-level overview, not a detailed how-to for implementing ABR. Beginners’ Guide to Adaptive Bitrate Technologies ▸

    1 retweet 6 likes
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