Hey all, I have followed a thread on golem.de, which was about an article regarding mozillas reasons, not to include h264 and to prefere theora instead. In the forum there was much talking about a lot of nonsens (as usual). But there is still a huge and loud number of people believing that theora has a significant worse quality compared to h264. Most test material I found does not focus real live videos, so the comparison does not reflect the user experiences. So I decided to use good quality web videos. The videos on golem.de have a much better quality than nearly all videos available through youtube. Therefor I ask the guys at golem.de if I can use their videos for an ogg/theora transcoding, and they agreed. Then I created the following page: http://dev.streamnik.de/80.html I want to make this page as user friendly as possible, so I need your feedback. Are the videos working for you? Do you have any problems? Which? What I found is, that chrome is not able to play the video correctly. Actually I am not using mvEmbedd, as I have not full access to the typo3 installation. Therefor I use the externaly available cortado player. -Yorn
Good one! There's actually only one H.264 video and the others are all VP6. Theora does seem a little more blurry on faces, but I think it is really comparable on anything else. Funnily, in Firfox, the Flash videos keep stalling and not catching up with playback, while the Theora videos play through nicely after the initial buffering. If all of them are hosted in Germany, then they do have a long way to go to reach me here in Australia, so that might be a major reason. Other than that, I think it's a worthwhile effort and should show those nay-sayers what the difference really is. BTW: My standard reply to those who claim that Theora has worse quality that H.264 is "how many videos have you encoded into Ogg Theora before now?". Cheers, Silvia. On Sat, Jan 30, 2010 at 8:57 PM, <yorn at gmx.net> wrote:> Hey all, > > I have followed a thread on golem.de, which was about an article regarding mozillas reasons, not to include h264 and to prefere theora instead. > > In the forum there was much talking about a lot of nonsens (as usual). But there is still a huge and loud number of people believing that theora has a significant worse quality compared to h264. Most test material I found does not focus real live videos, so the comparison does not reflect the user experiences. So I decided to use good quality web videos. The videos on golem.de have a much better quality than nearly all videos available through youtube. > > Therefor I ask the guys at golem.de if I can use their videos for an ogg/theora transcoding, and they agreed. > > Then I created the following page: > > http://dev.streamnik.de/80.html > > I want to make this page as user friendly as possible, so I need your feedback. Are the videos working for you? Do you have any problems? Which? > > What I found is, that chrome is not able to play the video correctly. > > Actually I am not using mvEmbedd, as I have not full access to the typo3 installation. Therefor I use the externaly available cortado player. > > -Yorn > _______________________________________________ > theora mailing list > theora at xiph.org > http://lists.xiph.org/mailman/listinfo/theora >
Hi, the Theora videos look good and play quite well under Ubuntu 9.10 with Firefox 3.5.7. Also CPU load is smaller while playing the Theora videos. I would be interested if you transcoded from some raw videos with higher resolution that you got from Golem.de or if you used the finished H.264 Flash videos that can be seen online? Of course this would affect the resulting Theora quality. The only problem I noticed are some glitches with the Theora videos (not audio) so the video didn't played as smooth as with Flash player. But I think it's because Firefox is new in playing videos and there is room for improvement. I also don't like that online videos always prebuffer until the end. This could lead to some bandwidth shortage and video disruption when you test one video after the other without waiting long enough. Regards, Franz yorn at gmx.net schrieb:> Hey all, > > I have followed a thread on golem.de, which was about an article regarding mozillas reasons, not to include h264 and to prefere theora instead. > > In the forum there was much talking about a lot of nonsens (as usual). But there is still a huge and loud number of people believing that theora has a significant worse quality compared to h264. Most test material I found does not focus real live videos, so the comparison does not reflect the user experiences. So I decided to use good quality web videos. The videos on golem.de have a much better quality than nearly all videos available through youtube. > > Therefor I ask the guys at golem.de if I can use their videos for an ogg/theora transcoding, and they agreed. > > Then I created the following page: > > http://dev.streamnik.de/80.html > > I want to make this page as user friendly as possible, so I need your feedback. Are the videos working for you? Do you have any problems? Which? > > What I found is, that chrome is not able to play the video correctly. > > Actually I am not using mvEmbedd, as I have not full access to the typo3 installation. Therefor I use the externaly available cortado player. > > -Yorn > _______________________________________________ > theora mailing list > theora at xiph.org > http://lists.xiph.org/mailman/listinfo/theora > >
> > You are right, the video shown below is the material, I used for the > > transcoding process, so the quality can not be better than the original > :-/. > > This is the "wrong" way to test making sure that the "looser" will be > ... guess who ...The main thing was not to create an academic comparison, but a comparison for the end users (who are mostly only know youtube stuff) so the videos are not brilliant, but most endusers that I have shown the videos, say that there is no difference between them. And that is what counts in the end.> > > I may ask for better quality material next week ... > > Please do.I will, if I find some time (ogg video tools 0.8a is on the way - with installers for mac and windows)> > The Theora and x264 videos should be both encoded from the same > high quality source of course, if only already "lossy" source is > available, the > trick is to ZOOM the decoded "source" down (by factor 2.2 maybe) before > reencoding with both competitors.I am actually testing resizing algorithms, what I experienced is, that the resizing is a real quality issue, do you use the resizer from ffmpeg? If you have some good algorithms I would be glad to integrate them into oggTranscode. -yorn