an update on open video codecs and quality

Two days ago we posted a comparison by Greg Maxwell of low and medium resolution YouTube videos vs. Theora counterparts at the same bit rates. The result in that test was that Theora did much better at the low bit rate and more or less the same at the slightly higher bit rate. The conclusion being that Theora is perfectly appropriate for a site like YouTube.

Now Maik Merten has done the same with videos at HD resolution, comparing videos encoded by YouTube and a video encoded with the new Theora encoder at a managed bitrate. The results? Go have a look at the images in the post. Tell us if you can honestly see a major difference. We can’t.

H.264
Theora


170 comments

  1. […] of the new core features; support for the HTML5 <video> and <audio> elements including native support for Ogg Theora encoded video and Vorbis encoded audio. Less than 12 days later, community members have created […]

    July 12th, 2009 at 10:45

  2. […] for the HTML5 <video> and <audio> elements including native support for Ogg Theora encoded video and Vorbis encoded audio. (Try it […]

    July 14th, 2009 at 00:10

  3. Eduardo B. da C. Krukoski

    What is most important?
    Create a default Audio & Video codec for WEB that can be open directly on browser.
    But this codec MUST be open source, with quality and low CPU power use. THEORA is a candidate. Let’s test him!

    July 14th, 2009 at 07:06

    1. chop

      I completely agree!

      March 13th, 2010 at 07:59

  4. […] y <audio> de HTML 5, incluyendo audio codificado en Vorbis y vídeo codificado en Ogg Theora de manera nativa (¡Pruébalo […]

    July 14th, 2009 at 19:38

  5. […] for the HTML5 <video> and <audio> elements including native support for Ogg Theora encoded video and Vorbis encoded audio. (Try it […]

    July 16th, 2009 at 00:51

  6. […] HTML5 <video> 和 <audio> 元素,包括對 Ogg Theora 編碼影像和 Vorbis […]

    July 18th, 2009 at 11:41

  7. KeV

    Well said,

    I’m so glad we have native support and the codecs improving all the time, hopefully one day we can get rid of adverts that use flash to redirect you anywhere they like and flash LSO cookies and have code that’s ratified by responsible browser developers that is as cross platform as can be and make life easier for developers by only needing to support one open format. ;)

    July 22nd, 2009 at 07:28

  8. […] y <audio> de HTML 5, incluyendo audio codificado en Vorbis y vídeo codificado en Ogg Theora de manera nativa (¡Pruébalo […]

    July 23rd, 2009 at 13:57

  9. […] 原文地址:an update on open video codecs and quality 系列地址:颠覆网络35天 […]

    July 27th, 2009 at 20:22

  10. […] agli elementi <video> e <audio> di HTML5, incluso il supporto nativo ai video con codifica Ogg Theora e all’audio con codifica Vorbis (fai un test […]

    August 1st, 2009 at 09:21

  11. […] 3.5 has support for the HTML5 <video> and <audio> elements including native support for Ogg Theora encoded video and Vorbis encoded […]

    August 2nd, 2009 at 15:14

  12. […] for the HTML5 <video> and <audio> elements including native support for Ogg Theora encoded video and Vorbis encoded audio. (Try it […]

    August 2nd, 2009 at 19:37

  13. Dmitry

    Great thanks for new VIDEO tag. I use ogg for web TV streaming. But how I did understand, new VIDEO element not yet support stream video – infinite file. This element can only single files play. It is thuth?

    August 10th, 2009 at 08:22

  14. […] agli elementi <video> e <audio> di HTML5, incluso il supporto nativo ai video con codifica Ogg Theora e all’audio con codifica Vorbis (fai un test […]

    August 16th, 2009 at 13:42

  15. Vamp94

    No noticable difference. Theora is better because it’s free and open sourec.

    December 28th, 2009 at 13:45

  16. Martin

    Very nice.

    January 2nd, 2010 at 01:30

  17. kx

    I’ve followed up to original images and found no noticeable differences between them. Why I see face smoothing here (small format) but not there (large format)? What algorithm is used for resizing original images to thumbnails? I’ve downloaded original images and stretched them to 480×270 with Lanczos and Belinear algorithms. The images became almost identical.

    I know that H.264 is much better than Theora. You’ve used unknown codec with unknown settings for encoding, so I don’t believe that your results are correct. There is another comparison that looks more convincing: http://www.osnews.com/story/19019/Theora-vs-h.264/

    January 23rd, 2010 at 12:32

  18. Shawn J. Goff

    Wow, you’re so wrong. First, why are you comparing the resized images? This makes no sense. Second, that comparison you have (from which you “know” h264 looks better) is from late 2007. There was much done in the year and a half that occurred between then and when this comparison was done.

    January 23rd, 2010 at 17:22

  19. […] agli elementi <video> e <audio> di HTML5, incluso il supporto nativo ai video con codifica Ogg Theora e all’audio con codifica Vorbis (fai un test […]

    June 26th, 2011 at 09:29

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