similar to: Bitrate Adaption

Hello everyone, I'm currently developing an adaptive videoconferencing application based on Ekiga which uses TFRC as a congestion control mechanism to adapt the video encoding rate according to the quality of the network experienced. My goal was to use the open-source Theora codec for video transmission. Unfortunately, it seemed that Theora 1.0 did not properly implement any correct CBR mode.

Hi, and thank to you all for this great codec ! I have this bug on Debian Lenny with compiled packages of last svn versions of ffmpeg and libtheora. This seems to append only on the amd64 arch. Here is a valgrind log : pre-barreau at augustins:~/video$ export LD_LIBRARY_PATH=/usr/local/lib pre-barreau at augustins:~/video$ valgrind /home/pub/apps/ffmpeg_dev/ffmpeg_svn/ffmpeg -i

I have tried to add a plunging to the "libtheora-1.0beta2" (network bandwidth measuring component was added) and Got it success for some far now the problem is when it is added the encoding process get extremely slow (around 20 seconds delay). I think that the problem is with my modified Makefile (some flag may have missed). the following is my modified Makefile.am which is in the

I have tried to add a plunging to the "libtheora-1.0beta2" (network bandwidth measuring component was added) and Got it success for some far now the problem is when it is added the encoding process get extremely slow (around 20 seconds delay). I think that the problem is with my modified Makefile (some flag may have missed). the following is my modified Makefile.am which is in the

Hello, I recently decided to develop a client-server visio-conference app for windows using libtheora for network communication. But I have a problem initialising the theora encoder : theora_encode_init() returns -23 and I would like to know what it means all I could find in the doc is that it should return 0 in case of success. I understand my call to theora_encode_init() failed, but i'd

Hi guys, Here's two patches I'm planning to apply to simplify the pitch quantisation. Can you test them and let me know how it works? Thanks, Jean-Marc -------------- next part -------------- A non-text attachment was scrubbed... Name: 0001-Moved-the-application-of-the-pitch-gain-to-un-quant.patch Type: text/x-patch Size: 8182 bytes Desc: not available Url :

Hello, I am programmer working on a product which integrates Theora. I have a question regarding the memory use on some of the internals of Theora. Is this the right forum for this question, and if not, does anyone know where an appropriate place to ask is? Thanks Sam -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi, I'm using Theora for live video chat. My problem is, at higher bitrates the bandwidth peaks caused by key frames are so high that most key frames get dropped in UDP traffic. The peaks are so strong that I still get many packet loss artifacts when sending with 1Mbit/s bitrate on a 2Mbit/s connection. I measured delta frames to be around 12kbyte and key frames up to 100kbyte in

I hope you can help with this one. I have two matricies: 1. A species abundance matrix: <http://r.789695.n4.nabble.com/file/n4643979/2species_matrix.jpg> 2. A species trait score matrix: <http://r.789695.n4.nabble.com/file/n4643979/2trait_matrix.jpg> The trait matrix lists trait scores for each species as listed in the species abundance matrix. I would like to create a script

Is there any dump utility that exists for vorbis streams? What I am intersted in is something that will do a break down like: How many bits are used for encoding _each_ codebooks, how many bits are used for the residue, how much is used for the lpc coefficints. A selective dump of the codebooks themselves would be nice too of course. I'm wondering if anyone has such a little dump utility.

I have been using libvorbis for the past few weeks and have been asked to summarise what I have discovered about the codec. There is an early draft of the document at http://www.geocities.com/gatewaystation/vorbis/vorbis.htm - Please forgive the dodgy formatting (it was formerly a MS word document that got converted with their 'save as html' feature). I still have some additions to

> How did you do it without the pragma? I understood that the problem was a mismatch between the the declaration and definition in for some codebooks (exc_*_tables.c). > I saw you added the pragmas to disable the float/double warnings to misc.h > though that header isn't included by the files that generate the warnings. What are the offending files then? BTW, aside from the

I'm getting errors like so on initial build of libtheora - 1>c1 : fatal error C1083: Cannot open source file: '..\lib\dec\x86_vc\x86stat.c': No such file or directory 1> mmxstate.c (TaskId:16) 1>c1 : fatal error C1083: Cannot open source file: '..\lib\dec\x86_vc\mmxstate.c': No such file or directory 1> mmxloopfilter.c (TaskId:16) 1>c1 : fatal error C1083:

Hi, I have two matricies a and x: a<-matrix(c(3,4,5,2,3,4,1,1,2), nrow=3, ncol=3) [,1] [,2] [,3] [1,] 3 2 1 [2,] 4 3 1 [3,] 5 4 2 x<-matrix(c(3, NA, NA, NA, 2, 5, NA, 2, 2), nrow=3, ncol=3) [,1] [,2] [,3] [1,] 3 NA NA [2,] NA 2 2 [3,] NA 5 2 I wish to combine these two into one matrix using the values from x where x has values, and

I have an old conferencing app that uses theora and I'm building it for win64. libthora 1.1 builds just fine, but libtheora 1.0 has errors related to assembly code when building for x64. I've tried using 1.1, but the video does not look right -- the clients all generate their own first 3 packets instead of sending them over the network since they assume they are all on the same version

This is my first excursion into using reshape2 and I want to ensure that the melt() function call is syntactically correct. The unmodifed data frame is organized this way: head(tds.anal) site sampdate param quant 1 UDS-O 2006-12-06 TDS 10800 4 STC-FS 1996-06-14 Cond 280 7 UDS-O 2007-10-04 Mg 1620 9 UDS-O 2007-10-04 SO4 7580 19 JCM-10B 2007-06-21 Ca 79 20

I got two questions on factors in regression: Q1. In a table, there a few categorical/factor variables, a few numerical variables and the response variable is numeric. Some factors are important but others not. How to determine which categorical variables are significant to the response variable? Q2. As we knew, lm can deal with categorical variables. I thought, when there is a categorical

Hi all, I've got an application here (flumotion) which uses libtheora (via gstreamer, though I think that's irrelevant here) and many other bits of code, one of which is PIL (Python Imaging Library), which also has chunks implemented in native code. When I run this, I get a crash in libtheora, the top of the stacktrace looking like: #0 0xb6a71bbf in quantize () from

Thanks to David's help I subset my large data set and produced a smaller one for a single stream and 7 factors of interest. The structure of this data frame is: str(burns.tds.anal) 'data.frame': 718 obs. of 4 variables: $ site : Factor w/ 143 levels "BC-0.5","BC-1",..: 1 1 4 6 4 4 4 5 5 5 $ sampdate: Date, format: "1996-06-02"

I don't find how to do what I need to do in Dalgaard or 'R Cookbook', so I'm asking here. I have a data frame with water chemistry data and I want to start exploring these data. There are three factors (site, date, chemical) associated with each measurement. The data frame looks like this: > summary(chemdata) site_id.sample_date.param.quant