search for: ptalarbvorm

Hi there, I was wondering if someone closer to the work happening in the Ptalarbvorm branch could be so kind as to provide a little update on progress? I've heard tidbits from around the web that the improvement over 1.1 is at least as much as 1.1 was itself over 1.0. I know that myself and many others found Monty's occasional updates on Thusnedla development to be absolut...

Hallo all, i didn't found any deb packages for ptalarbvorm so i did it by my self. currently i do it in my playgrond here https://launchpad.net/~bug-track/+archive/ppa probably it will be better to add ffmpeg2theora too. I stated write scrip to do it regularity without big work overhead. any comments? Regards, Alexey

ffmpeg2theora nightly builds found at http://firefogg.org/nightly/ still uses Thusnelda. Where can I get a Ptalarbvorm version for Windows? Regards

To my recollection, there hasn't been any talk about Ptalarbvorm. Is Ptalarbvorm development ditched? (I have noticed some commits for it every now and then, but nothing like the amount of commits last year) -- Daniel Hendrycks -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/theora/attachment...

We're about ready to do a 1.2 alpha release from the ptalarbvorm tree, and as such it's no longer experimental. I've replaced the theora svn trunk with a copy of derf's experimental tree; please do subsequent development toward the release there. The old 1.1.x trunk is available as http://svn.xiph.org/branches/theora-1.1 if you need it. -r

...easier process, allowing things like frame-by-frame editing without the need to decode and reencode the video again, thus incurring loss. I was quite skeptical of the efficiency of intra-only Theora, and I had speculated that the quality difference between intra-only Theora video (using the latest ptalarbvorm code) and, say, MJPEG video, wouldn't be much. I decided to test this theory, and so I pulled down some real HD 1080p videos from the Xiph media site (http://media.xiph.org) and decided to test intra-only Theora and MJPEG at 25Mbps with the test clips. I used the encoder_example that's pa...

...easier process, allowing things like frame-by-frame editing without the need to decode and reencode the video again, thus incurring loss. I was quite skeptical of the efficiency of intra-only Theora, and I had speculated that the quality difference between intra-only Theora video (using the latest ptalarbvorm code) and, say, MJPEG video, wouldn't be much. I decided to test this theory, and so I pulled down some real HD 1080p videos from the Xiph media site (http://media.xiph.org) and decided to test intra-only Theora and MJPEG at 25Mbps with the test clips. I used the encoder_example that's pa...

Hey all! I'm sure you've all been missing my webcam stream, so I decided to start it up again (also, I wanted to do it for my family overseas). However, this time, I'm doing things a little bit differently. For starters, the encoder is the current (as of about an hour ago) ptalarbvorm branch which is destined to become libtheora 1.2. Another difference is that I'm using gstreamer (via gst-launch) to handle every aspect of the webcam streaming, from capturing through to streaming. The command for that is as follows: time gst-launch-0.10 -vvvvv --messages --eos-on-shutdown...

Hi, This patch adds Altivec-optimized implementations of oc_enc_frag_sad and oc_enc_frag_ssd. This patch is against the latest svn revision of theora-ptalarbvorm. Speeds up encode on a plant stop-motion clip on a 1 GHz PPC 7447 by ~3%, timewise. Time spent in oc_enc_frag_sad is reduced from 4.2% to 2.3% and oc_enc_frag_ssd from 1.2% to 1.0%, as reported by Shark. Currently this is only integrated into the Xcode build project and need support for detectin...

Hi, again. Are there any updates to the development of Theora? Like a version 1.2? I ask this because I want to be re-assured Theora is not just sitting while people are choosing H.264... -- Daniel Hendrycks -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/theora/attachments/20100320/3c18a22c/attachment.htm

All, I'm pleased to announce the first alpha release of the new 1.2 libtheora, codename 'ptalarbvorm'. This is the reference implementation of the Ogg Theora video codec, hosted at Xiph.Org. Things are settling down with the new code and we're ready for wider testing toward an eventual 1.2.x stable release. So please download it, try it with your applications and other code, and give us f...

Hi Beorn, 1. replace "-v 7" to "--optimize --two-pass --soft-target -V 2000" you will get about 200MB file size with no changes in quality. 2. try to use libtheora ptalarbvorm, it is in alpha state but has some improvements. You can find comparison here: http://people.xiph.org/~xiphmont/demo/theora/demo9.html if you use ubuntu 10.10 you can download precompiled libtheora and ffmpeg2theora on my ppa: https://launchpad.net/~bug-track/+archive/xiph or just binary ffmpeg2t...

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.

Theora-devs: I am in seek of a theora (but possibly vorbis/ogg/ffmpeg) dev to optimize the encoding in a realtime software product. We do live encoding and transcode into ogg/theora/vorbis at various resolutions and frame rates. The higher resolutions cannot process in realtime and we are pushing the boundaries of hardware (cpu) encoding with the existing theora/ffmpeg. Right now we have to

"... we need a baseline to work from - one standard format that (if all else fails) everything can fall back to. This doesn?t need to be the most complex format, or the most advertised format, or even the format with the most companies involved in its creation. All it needs to do is to be available, everywhere. The codec in the frame for this is Ogg Theora..." :)