Slashdot Mirror


Working With Ogg Theora and the Video Tag

An anonymous reader writes "The Free Software Foundation's Holmes Wilson is just back from Berlin, where he participated in the Ogg Theora book sprint put on by FLOSS Manuals. Here is a broad look at Ogg Theora and how it fits into the push for free formats: where we're winning, what works, and what could be improved."

6 of 187 comments (clear)

  1. Re:Theora by Anonymous Coward · · Score: 4, Informative

    Agreed. And the OP linked article has a joke-of-a-comparison. I encoded the same video, same dimensions, same frame rate, and was able to widdle h264+AAC bandwidth down to 260 kbps and it still looked better than Ogg/Theora+Vorbis especially where the scene zooms towards the dark cave with sleeping bunny.

  2. Theora 1.1 by Torrance · · Score: 5, Informative

    Monty from Xiph has provided an update on the state of the upcoming 1.1 release. It makes for interesting reading.

  3. Re:The bigger picture by MartinSchou · · Score: 3, Informative

    Well, that was anti climactic.

    Opera 10 beta 3: Shows the player, but doesn't work "You must have an HTML5 capable browser."
    Firefox 3.5.2: Shows the player, but doesn't work. Doesn't give the error message though
    Google Chrome 2.0.172: Same as Opera "You must have an HTML5 capable browser."
    Google Chrome 3.0.195.6 (latest beta): All player controls work except full screen and the thingie on the right hand side, but none of the "more from" or "related videos" links work at all.
    Internet Explorer 8: Only shows the controls for the player, "Done, but with errors on page"
    Apple Safari 4.0.3: Can play the video (yay), but nothing else works. Doesn't show the time played or remaining, doesn't move the time indicator, none of the "more from" or "related videos" links work at all.

    I've no idea if the issue is with YouTube or with the browsers, but ... it's really not impressive. I installed the latest Chrome beta just to see if that made everything work like it should on that page, and it still doesn't.

    I've no doubt that it will work eventually, but for now, I wouldn't use that site as an of course it works, just look at this example.

  4. Re:Google behind HTML5... Not behind Theora by David+Gerard · · Score: 5, Informative

    Yes, and when he was called out on his BS and FUD ... he promptly disappeared.

    --
    http://rocknerd.co.uk
  5. Re:Theora by FrostedWheat · · Score: 4, Informative

    Not to mention the lack of hardware acceleration makes it pretty much a non starter

    You say this, but nowhere do you say why it needs hardware acceleration. Have you even tried it? My fairly old machine plays a 1080p Theora video just fine. A completely unscientific test with top shows about 33% CPU usage, peeking at about 40%. The same machine cannot decode 1080p H.264 video in real time.

    Theora just isn't as CPU greedy as H.264 -- it doesn't need hardware acceleration. Although it wouldn't hurt ;-)

  6. Re:Theora by mugginz · · Score: 3, Informative

    With any luck, the findings pointed to by http://web.mit.edu/xiphmont/Public/theora/demo8.html may lead to better quality/bit-rate ratios in the future.