search for: certik

Displaying 8 results from an estimated 8 matches for "certik".

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2009 Jun 24
3
streaming theora in flash
Hi, I managed to get my own FLV videos working over the web: http://certik.github.com/record/ it plays in the opensource flash player (flowplayer), but I have to convert theora to FLV (you can use the script in the package above). My question is, does anyone know if it's possible to get theora itself working? I know firefox3.5 will be able to do it, but I am afraid t...
2009 Jun 15
2
oggz-chop gives segmentation fault
Hi, I am using oggz-chop in the ubuntu jaunty, am I doing something wrong? $ oggz-chop -o yt1.ogv -s0 -e500 ondrej.ogv Segmentation fault gdb session doesn't reveal much, since it isn't compiled with debugging symbols: (gdb) bt #0 0x00007f9e5d2f0092 in memcpy () from /lib/libc.so.6 #1 0x0000000000403698 in ?? () #2 0x000000000040262e in ?? () #3 0x000000000040285d in ?? () #4
2009 Jun 15
0
python bindings update
Hi, here is a webpage for the Python bindings: http://certik.github.com/python-theora/ Changes since the last time: * tests added, e.g. there is a script that downloads some theora tests videos and then I test the python wrappers on them * every single method has a docstring with a doctested example * sphinx documentation added, see the link above * couple...
2009 Jun 14
3
python bindings to libtheora
Hi, in the past two days I wrote Python bindings to libtheora: http://github.com/certik/python-theora Currently it can read any ogv file (that seems to work quite well) and also encode to ogv (this mostly works, but there are some subtle issues to be fixed, I suspect I still have some bug in the way I half the dimensions of the Cb and Cr planes, so when you read ogv and write ogv, th...
2009 Jun 16
2
YCbCr <-> RGB conversion question
Hi, I coded some routines for YCbCr <-> RGB conversion, both using floating point numbers and using integer arithmetics, code is attached. Let's say I want to convert from RGB to YCbCr and back. First the integer arithmetics: In [1]: from colors import * In [2]: a = [255, 0, 255] In [3]: RGB2YCbCr(a) Out[3]: (107, 202, 222) In [4]: YCbCr2RGB(RGB2YCbCr(a)) Out[4]: array([255, 1,
2009 Jun 16
1
mixing effects when joining videos
Hi, what is the best way to go about mixing effects when joining two videos, like crossfading? Once I have the individual images as numpy arrays, the mixing itself is the easy part (I'll just use numpy + scipy for that, or any other python lib). However, it's not clear to me how (and especially when) to handle decoding and encoding properly. So lets say I create a video tutorial
2009 Dec 03
2
Theora processing at server side : Removing non-needed frames
May somebody give me link for server side processing of ogg video by php or ruby or anything else. Let me tell my purpose, I have made a image splitter of ogg video - You can view it at http://jsbin.com/ihebo (basic coding ) just play the video and there is a button call "snapit", which will take current frame. At the end of this process, I will upload all timing info at server.
2010 Jan 21
0
python-theora: some comments
Hi, here's a list of comments on python-theora: 1) http://certik.github.com/python-theora/module_theora.html#class-theora uses theora.test_files but setup.py does not install the test files so using this API fails with Traceback (most recent call last): File "browse-video.py", line 4, in <module> t = theora.Theora(theora.test_files[2])...