Search Results for: x265
AV1 Encoding with aomenc.exe, libaom-AV1, SVT-AV1, and Aurora1
While 2018 was the year AV1 became known, 2020 will be the year that AV1 became interesting, primarily because of three developments. First, in early 2020, AV1-enabled smart TVs hit the market, right on the 2-year schedule announced back in 2018 by the Alliance for Open Media (AOMedia). Second, over the past two years, encoding times for the AOMedia AV1 …
Read More »Encoding VVC with Fraunhofer’s VVenC
For this review, I took a first look at encoding VVC (Versatile Video Coding). Specifically, I compared Fraunhofer HHI’s implementation of the VVC codec (Versatile Video Encoder; VVenC) against the Alliance for Open Media’s (AOMedia) aomenc codec and the x.264 and x.265 codecs in FFmpeg. I found VVenC to be simple to use and much faster than expected. Its output …
Read More »Five Star Review for AV1 Encoding Course
Just a quick note to celebrate the first review of my Encoding with the AV1 Codec course ($99.95). By way of background, I designed the course to help familiarize students with the confusing array of AV1 encoding parameters and to offer sample command strings that I have proven over weeks of testing. In other words, to save time, which is …
Read More »Encoding H.264-Advanced Topics
Recently I received a shortlist of compression-related questions from a consulting buddy; he’s always been gracious in answering my questions and I wanted to return the favor. Since he’s asking, I thought others might be curious as well; hence this blog post that largely incorporates my responses to his questions, all relating to encoding H.264 files. Here are the questions: …
Read More »How to Create a New Video Encoding Command String in 11 Simple Steps
I’ve spent the last two months testing four AV1 codecs accessible via command-line arguments and I start testing VVC codecs next week. Trying to fairly and accurately test the capabilities of these codecs turned out to be a pretty grueling and messy task. The key challenge, of course, was creating the optimal video encoding command string for each codec. While …
Read More »Webinar: Choose and Use the Best AV1 Codec
Jan Ozer here. I spent the last 2 months working with four AV1 codecs, benchmarking them against each other and x264 and x265. I’m presenting my findings in this for-fee 75-minute webinar ($149.99). There are two parts; the first shares what I learned about the codecs, and the second details what I learned about encoding with them and creating the …
Read More »Zeranoe Resolves AV1 Issue; Now Faster Than aomenc.
Previous tests presented here showed that a Windows version of FFmpeg compiled by Zeranoe was about four times slower than a version compiled by a colleague who works in an OTT organization. Since then, Miguel Perez contacted the FFmpeg organization and Zeranoe, who researched the issue, recompiled, and created a new download that resolves the problem. To test the new …
Read More »AV1 Is At Least 70% Faster Than I Thought
AV1 encoding is now only 2x slower than x265. See the latest results here. Though FFmpeg took 50 minutes to produce a test file that both x264 and x265 encoded in about two minutes, the Alliance for Open Media’s aomenc encoder, running the same version of AV1 (version 2) produced the file in about 15 minutes. So FFmpeg’s slow AV1 …
Read More »Promising Initial Results with AV1 Testing
AV1 encoding is now only 2x slower than x265. See the latest results here. I began testing AV1 early this week. Briefly, my tests involve 16 ten-second clips in four genres (movies, sports, animations, gaming) and an “other” category (music video, nature video). I’ve completed the first set of tests with FFmpeg 4.3, benchmarking x264, x265, and the latest version …
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