Re: Help wanted: video demo!
Hi Guys, here's our cute XO playing a video in fullscreen mode thanks to mplayer :) http://dev.laptop.org/~rverdejo/video_samples/MPlayerFullSize01_mpeg41000_mp2128_622x520.avi cheers! Reynaldo Verdejo and Eduardo Silva. On Dec 12, 2007 4:17 AM, Sameer Verma [EMAIL PROTECTED] wrote: C. Scott Ananian wrote: We need a demo which shows off the full-screen video capabilities of the XO. Unfortunately, Record compresses its input rather heavily, so it's not a great demo for video playback. We bundle the Ogg Theora codecs, and Browse can play media files full-screen, so the first step is for someone to invest some time in transcoding an appropriate demo movie (I suggest http://www.elephantsdream.org/ -- some ogg transcoding linked from http://wiki.xiph.org/index.php/Elephants_Dream ) to an appropriate bit rate / size for the XO. Make it look good! It looks like there are a couple of Ogg Theora versions of the Elephant's Dream at http://files.akl.lt/video/Elephants%20Dream/. Encoded in Stereo at 512x288 (52MB) and 1024x576 (161MB). What rate/size would be appropriate for the XO? Sameer -- Dr. Sameer Verma, Ph.D. Associate Professor of Information Systems San Francisco State University San Francisco CA 94132 USA http://verma.sfsu.edu/ http://opensource.sfsu.edu/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Help wanted: video demo!
That's a proprietary format. Couldn't you have used Theora like the OP suggested? On 12/13/07, Eduardo Silva [EMAIL PROTECTED] wrote: Hi Guys, here's our cute XO playing a video in fullscreen mode thanks to mplayer :) http://dev.laptop.org/~rverdejo/video_samples/MPlayerFullSize01_mpeg41000_mp2128_622x520.avi cheers! Reynaldo Verdejo and Eduardo Silva. On Dec 12, 2007 4:17 AM, Sameer Verma [EMAIL PROTECTED] wrote: C. Scott Ananian wrote: We need a demo which shows off the full-screen video capabilities of the XO. Unfortunately, Record compresses its input rather heavily, so it's not a great demo for video playback. We bundle the Ogg Theora codecs, and Browse can play media files full-screen, so the first step is for someone to invest some time in transcoding an appropriate demo movie (I suggest http://www.elephantsdream.org/ -- some ogg transcoding linked from http://wiki.xiph.org/index.php/Elephants_Dream ) to an appropriate bit rate / size for the XO. Make it look good! It looks like there are a couple of Ogg Theora versions of the Elephant's Dream at http://files.akl.lt/video/Elephants%20Dream/. Encoded in Stereo at 512x288 (52MB) and 1024x576 (161MB). What rate/size would be appropriate for the XO? Sameer -- Dr. Sameer Verma, Ph.D. Associate Professor of Information Systems San Francisco State University San Francisco CA 94132 USA http://verma.sfsu.edu/ http://opensource.sfsu.edu/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Help wanted: video demo!
We need a demo which shows off the full-screen video capabilities of the XO. Unfortunately, Record compresses its input rather heavily, so it's not a great demo for video playback. We bundle the Ogg Theora codecs, and Browse can play media files full-screen, so the first step is for someone to invest some time in transcoding an appropriate demo movie (I suggest http://www.elephantsdream.org/ -- some ogg transcoding linked from http://wiki.xiph.org/index.php/Elephants_Dream ) to an appropriate bit rate / size for the XO. Make it look good! It may be that we need to find a higher-performance (but still free) codec or some such to make this really look good. Help here could be useful, too. Thanks for your help! --scott -- ( http://cscott.net/ ) ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Help wanted: video demo!
On 12/11/07, C. Scott Ananian [EMAIL PROTECTED] wrote: We need a demo which shows off the full-screen video capabilities of the XO. Unfortunately, Record compresses its input rather heavily, so it's not a great demo for video playback. We bundle the Ogg Theora codecs, and Browse can play media files full-screen, so the first step is for someone to invest some time in transcoding an appropriate demo movie (I suggest http://www.elephantsdream.org/ -- some ogg transcoding linked from http://wiki.xiph.org/index.php/Elephants_Dream ) to an appropriate bit rate / size for the XO. Make it look good! It may be that we need to find a higher-performance (but still free) codec or some such to make this really look good. Help here could be useful, too. To handle most any digital video format, Quicktime would be easiest to get started. - Encode your existing files into DV (using Quicktime pro). - Use gstreamer to encode into ogg files: gst-launch-0.10 filesrc location=grover.dv ! dvdemux ! dvdec ! ffmpegcolorspace ! theoraenc ! oggmux ! filesink location= grover.ogg Of course you will want to alter settings to change the file size, rate, etc. You would make these changes in the gstreamer pipeline or in quicktime as a pre-processing step. ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Help wanted: video demo!
The Sesame Street video that runs in the Helix player (RV encoded) is quite a good demo of full screen video on the laptop. -walter On Dec 11, 2007 6:07 PM, Erik Blankinship [EMAIL PROTECTED] wrote: On 12/11/07, C. Scott Ananian [EMAIL PROTECTED] wrote: We need a demo which shows off the full-screen video capabilities of the XO. Unfortunately, Record compresses its input rather heavily, so it's not a great demo for video playback. We bundle the Ogg Theora codecs, and Browse can play media files full-screen, so the first step is for someone to invest some time in transcoding an appropriate demo movie (I suggest http://www.elephantsdream.org/ -- some ogg transcoding linked from http://wiki.xiph.org/index.php/Elephants_Dream ) to an appropriate bit rate / size for the XO. Make it look good! It may be that we need to find a higher-performance (but still free) codec or some such to make this really look good. Help here could be useful, too. To handle most any digital video format, Quicktime would be easiest to get started. Encode your existing files into DV (using Quicktime pro). Use gstreamer to encode into ogg files: gst-launch-0.10 filesrc location=grover.dv ! dvdemux ! dvdec ! ffmpegcolorspace ! theoraenc ! oggmux ! filesink location= grover.ogg Of course you will want to alter settings to change the file size, rate, etc. You would make these changes in the gstreamer pipeline or in quicktime as a pre-processing step. ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel -- Walter Bender One Laptop per Child http://laptop.org ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Help wanted: video demo!
On Dec 11, 2007 6:52 PM, Walter Bender [EMAIL PROTECTED] wrote: The Sesame Street video that runs in the Helix player (RV encoded) is quite a good demo of full screen video on the laptop. Is there a URL that that can be downloaded from? Does Erik's transcoding mechanism work to get it out of RV format? Can we still play it smoothly when it has been transcoded to an unencumbered format? --scott -- ( http://cscott.net/ ) ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Help wanted: video demo!
C. Scott Ananian wrote: On Dec 11, 2007 6:52 PM, Walter Bender [EMAIL PROTECTED] wrote: The Sesame Street video that runs in the Helix player (RV encoded) is quite a good demo of full screen video on the laptop. Is there a URL that that can be downloaded from? Does Erik's transcoding mechanism work to get it out of RV format? Can we still play it smoothly when it has been transcoded to an unencumbered format? --scott http://staff.osuosl.org/~peter/myfiles/helix/SesameFull.rv or for a shorter video: http://staff.osuosl.org/~peter/myfiles/helix/SesameStreet_21.rv ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Fwd: Help wanted: video demo!
(Doh! Sent from the wrong email) -- Forwarded message -- From: Seth Woodworth [EMAIL PROTECTED] Date: Dec 11, 2007 4:23 PM Subject: Re: Help wanted: video demo! To: C. Scott Ananian [EMAIL PROTECTED] Cc: Walter Bender [EMAIL PROTECTED], devel Development devel@lists.laptop.org I believe that SJ got the rights for us to use Anima Mundi, Koyaanisqatsi and the rest of the -qatsi movies on the XO. http://en.wikipedia.org/wiki/Anima_Mundi_%28film%29 Very visually stunning. And shot in the Real World as opposed to digitally animated, it would provide a very powerful demonstration, either alongside Elephant Dream or instead of. I have Koyaanisqatsi / Powaqqatsi ordered from amazon, and I was planning on getting Anima Mundi via NetFlix to encode them all in Ogg-Theora. Wast there a specific purpose for this video? If so what kind of time frame is this video needed in? If just for general demonstration, I'll still try to get this done by christmas. I'll have an xo this week so I can see how high of a framerate / quality the XO can handle without slowdown. Seth On Dec 11, 2007 4:00 PM, C. Scott Ananian [EMAIL PROTECTED] wrote: On Dec 11, 2007 6:52 PM, Walter Bender [EMAIL PROTECTED] wrote: The Sesame Street video that runs in the Helix player (RV encoded) is quite a good demo of full screen video on the laptop. Is there a URL that that can be downloaded from? Does Erik's transcoding mechanism work to get it out of RV format? Can we still play it smoothly when it has been transcoded to an unencumbered format? --scott -- ( http://cscott.net/ ) ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Help wanted: video demo!
Does Erik's transcoding mechanism work to get it out of RV format? I don't believe there is a real component for a gstreamer pipeline. You would want to use the highest quality originals anyway. ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Help wanted: video demo!
C. Scott Ananian wrote: We need a demo which shows off the full-screen video capabilities of the XO. Unfortunately, Record compresses its input rather heavily, so it's not a great demo for video playback. We bundle the Ogg Theora codecs, and Browse can play media files full-screen, so the first step is for someone to invest some time in transcoding an appropriate demo movie (I suggest http://www.elephantsdream.org/ -- some ogg transcoding linked from http://wiki.xiph.org/index.php/Elephants_Dream ) to an appropriate bit rate / size for the XO. Make it look good! It looks like there are a couple of Ogg Theora versions of the Elephant's Dream at http://files.akl.lt/video/Elephants%20Dream/. Encoded in Stereo at 512x288 (52MB) and 1024x576 (161MB). What rate/size would be appropriate for the XO? Sameer -- Dr. Sameer Verma, Ph.D. Associate Professor of Information Systems San Francisco State University San Francisco CA 94132 USA http://verma.sfsu.edu/ http://opensource.sfsu.edu/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
