search for: chriscooksey

Displaying 4 results from an estimated 4 matches for "chriscooksey".

2009 Oct 13
3
Proposal for replacing asm code with intrinsics
...quot; Today's Topics: 1. Possible inefficiency in encode.c (Chris Cooksey) 2. Re: Possible inefficiency in encode.c (Timothy B. Terriberry) ---------------------------------------------------------------------- Message: 1 Date: Wed, 07 Oct 2009 17:40:43 -0400 From: Chris Cooksey <chriscooksey at gmail.com> Subject: [theora-dev] Possible inefficiency in encode.c To: <theora-dev at xiph.org> Message-ID: <C6F2831B.28AF4%chriscooksey at gmail.com> Content-Type: text/plain; charset="US-ASCII" Hi, I am very new to Theora, having just started working through the code...
2009 Oct 07
1
Possible inefficiency in encode.c
Hi, I am very new to Theora, having just started working through the code a few weeks ago. I am working on a requantization tool to reduce bit rates, hopefully on the fly, for some video conferencing work. As I was working through the encoding phase I noticed this line in encode.c: for(ti=_enc->dct_token_offs[pli][zzi];ti<ndct_tokens;ti++){ It's around line 804, but I am
2010 Feb 05
1
[theora] ffmpeg2theora 0.26 released
> I''m on OSX, and I previously manually installed some test builds to help with > testing. Now when I go and install the official 0.26, the installer claims > that I have a newer version and refuse to install. Does anyone know how I can > fix that? This is a new "feature" in Mac OS 10.6. I am not even sure what it''s trying to accomplish but it gets upset
2009 Nov 16
2
Theora Fast Quality Reduction Transcoding
Hi. I have been working on a tool whose goal is to reduce the bit rate of theora video by decoding to DCT coefficients, reducing the entropy of the coefficients, and re-tokenizing the stream. I have successfully used the decoder source to extract the DCT coefficients for each block, and I am able to capture any and all relevant information about where the block of coefficients falls in the