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One of the benefits of HEVC is supposed to be that it delivers the same quality of H.264 at 50% of the data rate. However, since there’s little data rate standardization, it’s tough to tell what that means. After all, it means one thing if you produce your H.264-encoded H.264 video at 2 mbps, quite another at 3.5 mbps. I’m trying to add some objectivity via a two-question survey to identify the data rates you’re currently using to produce H.264 at 720p and 1080p.
I will have access to a number of HEVC encoders from multiple vendors over the next three weeks. I’ll average out the results of the survey, and use that direct how to apply the 50% test. So if the average data rate for 720p using H.264 is 3 mbps, I’ll encode the HEVC content at 1.5 mbps and see how the files compare. Ditto for 1080p. I’ll present the results at the Streaming Forum in London later this month, and also on this web site.
Here’s the link to the survey. The free survey tool I’m using, So Go Survey, is limited to 200 responses. Sorry if you get shut out.
So long as I have you in the survey taking mood, note that Streaming Media Magazine has a more extensive HEVC Survey gathering information to be disclosed in an article I’m writing for the September issue of the magazine. If you want to share your goals, plans and concerns about deploying HEVC for a chance to win one of three $50 American Express gift cards, click here.
