As far as video playback is concerned, it seems to mostly come down to how the video is compressed - although Gnash (the open flash player) still has a ways to go to play flash media as well as the closed source flash players. For the Colingo activity and library, we've found it very difficult to find optimum settings for flash and instead have decided to go with Theora. We've managed to find some compression settings that keep the videos incredibly small with surprisingly good playback quality when played with Totem. Arthur Richards Colingo John Kintree wrote:> There is a new review of the XO laptop at: > http://www.notebookreview.com/default.asp?newsID=4093 > > The review is mostly positive. The most disappointing thing for me > was, "Flash is also a very processor-intensive application, especially > Youtube videos. The video took much longer to load than it took to > download, and the back of the laptop was getting quite hot. The video > showed very noticable frame skip and audio stuttering was also obvious > throughout the entire clip." > > Perhaps optimizations in the XO Flash player can improve things. > While I sincerely hope to have a decent experience of viewing YouTube > videos with my XO, Flash is not the only format for digital video. > Are there other video formats, perhaps Theora, that play well on the XO? > Regards, > John Kintree > > ------------------------------------------------------------------------ > > _______________________________________________ > Olpc-open mailing list > Olpc-open@lists.laptop.org > http://lists.laptop.org/listinfo/olpc-open-------------------------------------------------------
<div id="_htmlarea_default_style_" style="font:10pt arial,helvetica,sans-serif">On Thu, 15 Nov 2007 15:08:35 -0600<br> John Kintree <jkintree@swbell.net> wrote:<br>> As far as video playback is concerned, it seems to mostly come down to<br>> how the video is compressed - although Gnash (the open flash player)<br>> still has a ways to go to play flash media as well as the closed source<br>> flash players.<br>> <br>>For the Colingo activity and library, we've found it very difficult to<br>> find optimum settings for flash and instead have decided to go with<br>> Theora. We've managed to find some compression settings that keep the<br>> videos incredibly small with surprisingly good playback quality when<br>> played with Totem.<br>> <br>> Arthur Richards<br>> Colingo<br>> <br>> John Kintree wrote:<br>>> There is a new review of the XO laptop at:<br>>> http://www.notebookreview.com/default.asp?newsID=4093<br><br>Hi John,<b r><br>Personnaly I use OGG Theora for all my videos.<br>I have a little example page where I upload a video encoded at 256kbps max (both audio and video) here:<br>http://home.tele2.fr/crossover/<br><br>I use a fifo with mplayer to provide the content to encoder_example.<br>The video is encoded at 15fps, transcoded with mencoder to get this framerate.<br><br>For the audio I use a mono channel at 22050Hz and encoded with the -1 setting.<br><br>Every time I reset the settings to be at 256kbps so I do not have fixed settings, it depends of the video material. The audio is almost always at 24kbps.<br><br>I even have a good example at 128kbps here: http://gameclash.org/breve.php3?id_breve=53<br>It is quite rare to reach such a low bitrate with a good quality.<br><br>Best regards<br>--<br>ZikZak<br></jkintree@swbell.net></div>