similar to: Cortado yuv thread patch

Hi all, how can I convert a RGB (24 or 32) image I'm getting from a webcam for example to YUV to compress it with theora, decompress it and convert it back to RGB to draw it? Any suggestions? Best regards, Florian (Stuttgart, GERMANY)

Mike Melanson: I want to store RGB values instead of YUV. I don't understand the theoretical and practical implications of this and that's why I'm asking about it. I would like to know whether it cannot work and why. I'm targeting a minimum Pentium 4 Celeron, 256MB RAM. Video resolution are about 200 X 200 pixels with a maximum of 2 playing simultaneously as the game is playing

Hey, ::: I'm sending a patch for liboggplay for comments. It adds - runtime cpu extension detection - fixed mmx implementation - added sse2 yuv to rgb conversion - added a faster vanilla implementation ::: currently it works fine on unix systems, the MSVC implementation needs a bit of a hacking, but basically you get the concept of the refactoring. If you have any

Hello. I'm a theora newbie... I see it accept video frames in some differents YUV formats. How theora manage them internally? I mean: if i encode the same video twice, first time encoding it with YUV444 packets and then with YUV420, will second video be smaller than first (due to subsampling...)? Or theora compress them in the same way? Thanks in advance, A. F.

Hello. I read documentation, but I didn't found anything about encoder supported YUV format. Is Y in [0-255] or in [16,235]? And U,V are in [16,239]? I'm trying to write a fast (with lookup) conversion from RGB -> YUV... Thanks in advance, Andrea -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hello all, I'd like to convert the theora yuv_buffer to RGB that I can render onto a texture. Googling around, there are a tone of different formulae to do so. There is this (with lots of corrections and amendments further down the page): http://www.fourcc.org/fccyvrgb.php <http://www.fourcc.org/fccyvrgb.php> and there is the MSDN stuff that says you need to convert 4:2:0 and

I've spent the weekend or so trying to get my head around Theora and I'm just not having any luck. First of all, I really don't have any interest in immersing myself in video encoding--I just have one simple thing I'd like to do--so I haven't spent any time reading about the theory or specs or anything like that. I'm attempting to write a "render-to-theora"

I posted this the other day... but it didn't get delivered... ------------------------------------------------------------------- I'm getting stuck into a theora decoder for directshow... i was just wondering if someone could give me some info. What output format does theora use ? http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnwmt/html/YUVFormats.asp

Hello! I'm trying to use ffmpeg2theora to encode raw (.yuv) files in I420 format (just frames, no headers at all), but failed to find corresponding input format. Is there any documentation of supported formats for ffmpeg2theora? Or maybe there is another command-line tool for Windows to encode raw video using Theora algorithm? Thank you for help! Alexander.

Hello list, When I convert an yuv pixel into rgb using the recipies in http://www.fourcc.org/fccyvrgb.php I get an accurate color conversion but the contrast seems to be decreased. If i write, e.g., the pixel directly into an sdl yuv_overlay, I get a well-contrasted frame, however, if I convert the pixel to rgb and call SDL_MapRGB, I get a contrast-decreased frame. Thanks, Ribamar

finally I put my video in theora on our website , at 250 kbps , quality is better than Xvid ! http://www.marseille-wireless.org/spip/article.php3?id_article=60 I still need to make a high definition version ( few Mbits ) and a dialup modem one ( ogg 20k + theora 40 k ) I just ha this problem that my video has not the right dimansion mith WMP or mplayer , will have to see why the dimension

On Thu, Nov 4, 2010 at 11:46 AM, Hans de Goede <hdegoede at redhat.com> wrote: > Note that I'm not packaging it (advertising the package) as an applet > for in browser use / for serving over http, but rather packaging > it as a java media playback framework, because it is used as such by > several java games which we package. As such it only gets used > with (and has been

Hi, Here is a skin for the famous Java applet, it use PHP to select the file and other options. Could you add it as a link on http://theora.org ? http://menguy.aymeric.free.fr/theora/ All is in french but the php files are very easy to understand. Best regards -- ZikZak

Hi everyone ! As a special Christmas present, Fluendo is releasing the source code to the java-based "Cortado" media player. See http://www.flumotion.net/ for more details, or check our demo streams (with applet) at http://mirror.fluendo.com/ This player has great support for Ogg/Vorbis/Theora, using the Jorbis code and the Jheora port of Theora to Java written by Wim Taymans. Keep

Hi everyone, after a long wait, Cortado 0.2.0 has finally been released. This release adds support for seeking in static files, and numerous bug fixes. Full release notes attached. Enjoy ! Thomas -------------- next part -------------- Release notes for Cortado?0.2.0 "Broken Record" Cortado applet Features of this release * Seeking in on-demand files and

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 The attached patch allows frames to be dropped in Cortado: Why: Currently, frames cannot truly be dropped in Cortado. If the decoded YUV arrives too late at the videosink, it will not be converted to RGB, but every frame must still be decoded. On slow systems, once the queue of undecoded Theora packets fills up, the video decoder will block the ogg

Hi, I wrote a Processing.org library based on Cortado. Maybe the Cortado developers are interested in it. At the end of November I sent a question to this list asking about the licensing of Cortado and its libraries (see http://lists.xiph.org/pipermail/theora-dev/2009-November/004015.html). As I wanted to create a LGPL library, I rewrote the package com.fluendo.utils, I don't use

Hi, this is in response to s.monzio's post on 'xiph.org at lucymac.net', which I received despite never having heard of this list, so I suspect it redirects to one of the lists at lists.xiph.org, so I'll assume you've seen it. If not, I can forward it. It's pretty simple, and I'm waiting to hear from the original poster to confirm it fixes the problem. If so, and no

Re: How to broadcast a live stream programme using Cortado ? Hi, anyone know how to broadcast a live stream programme using Cortado? For example, the DW-tv Europe live TV http://www.dw-world.de/ -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/theora-dev/attachments/20100531/c47eecff/attachment.htm

Hi, three years ago Cortado found its new home xiph.org (as per http://lists.xiph.org/pipermail/theora/2009-October/002976.html ). However there are still 13 open bug reports in Wikimedia Bugzilla: https://bugzilla.wikimedia.org/buglist.cgi?query_format=advanced&resolution=---&product=Cortado Would you like me to upstream these tickets to