Displaying 20 results from an estimated 300 matches similar to: "DRM for Theora over RTP"
2010 Feb 08
4
Theora over RTP/UPD
Hi,
I'm trying to get Theora working with a video conferencing application we are developing.
This application sends the audio content via RTP over UPD, and as one would
expect, there is a draft for how a Theora stream is supposed to be wrapped into an RTP
stream.
http://svn.xiph.org/trunk/theora/doc/draft-ietf-avt-rtp-theora-00.txt
The problem is that it is not obvious to me how the raw
2011 May 17
2
CPU saving way to lower quality of Theora stream
Hi,
is there a good concept to lower the quality of a Theora stream without
completely reencoding it?
For example to make a lower bitrate stream out of a higher bitrate
stream on the fly on some sort of proxy server. I am thinking about
something like requantization.
If you think requantization is also the best (or the only) option for
Theora please let me know.
Kind regards,
Franz
2017 Nov 27
2
NHW Project - speed comparison with x265
Hello,
I am very slowly working on the NHW Project.I recently made a speed
comparison with x265 and wanted to share it with you.
On my processor Intel Core i5-6400, in average the NHW encoder (totally
unoptimized) is x10 times faster to encode than x265 (png decoding time
removed), in average 30ms vs 300ms for a 512x512 24bit color image, and in
average the NHW decoder (totally unoptimized) is
2012 Mar 21
2
Echo cancellation with different sound card for speaker and microphone
I'm developing an application that have a video conference component.
For that I need echo cancellation, and is looking around for
algorithms/implementations of that, and the one in speex is an
alternative. In the documentation for speex I find the following
sentence however.
"Using a different soundcard to do the capture and plaback will *not*
work, regardless of what you may
2010 Mar 25
2
Questions about encoder parameters.
I have almost finished integration of Theora into our videoconferencing
program. Since a videoconferencing program is realtime, it is UDP-based
and wraps the Theora stream in RTP (More on that later). The problem
here is that most examples I could find, wraps the theora stream in ogg,
and used over tcp or files. I send over UDP and clients need to be able
to start in the middle of the stream.
2011 May 18
1
Theora decoding performance
As far as my very limited knowledge goes the Theora video format is less
complex than H.264 (High Profile for example). Please correct me if I am
wrong.
Does this also mean that I can expect that decoding a Theora stream is
easier/faster to decode than a H.264 stream with comparable quality / or
comparable bitrate?
My (very practical) tests do show that it's easier for my computer to
2008 Jan 29
5
pivot table in R
Hello,
I'm struggling with an elementary problem with R. I have a simple data
frame such as this one giving the number of accidents subdivided by sex,
age and region.
sex age region no_of_accidents
F young north 10
F young south 12
F old north 5
F old south 7
M young north 24
M
2017 Nov 30
0
Fwd: NHW Project - speed comparison with x265
---------- Forwarded message ----------
From: Raphael Canut <nhwcodec at gmail.com>
Date: 2017-11-30 14:22 GMT+01:00
Subject: Re: [theora] NHW Project - speed comparison with x265
To: fboehm <fboehm at aon.at>
Hi Franz,
Many thanks for your answer!!!
> I appreciate your enthusiastic work on such a complex project like
writing a video codec
Yes, for now the NHW codec is more an
2008 Nov 07
2
Vectorizing sample()
I am simulating sickness among a group of families. Part of the task is
to randomly draw who in the family will be sick, randomly drawing from
family ID's where Dad =1, Mom = 2, Kid1 = 3, Kid2 = 4., etc. My census of
Dads is of the form shown below.
Dad_ID Spouse (Y=1;N=0) #Kids #People_Becoming_Sick
1 1 0 1
2
2009 Dec 25
5
[Bug 25795] New: windows not redrawn after resize
http://bugs.freedesktop.org/show_bug.cgi?id=25795
Summary: windows not redrawn after resize
Product: xorg
Version: 7.4
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/nouveau
AssignedTo: nouveau at lists.freedesktop.org
2008 Sep 25
2
Two overlaid density plots - Does order matter?
In the following code, the only difference between the two plots is the
order the variables are plotted. In this case, the plot of "cdata.den" in
plot #1 is different from its plot in #2. Specifically, "cdata.den" spans
the x-axis from -5 to 30 in plot #1 and from 0 to 20 in plot #2. Does
anyone understand why these two plots do not yield the same result?
#Make density
2006 Aug 16
3
fitting truncated normal distribution
Hello,
I am a new user of R and found the function dtnorm() in the package msm.
My problem now is, that it is not possible for me to get the mean and sd out of a sample when I want a left-truncated normal distribution starting at "0".
fitdistr(x,dtnorm, start=list(mean=0, sd=1))
returns the error message
"Fehler in "[<-"(`*tmp*`, x >= lower & x <= upper,
2008 Nov 28
1
confidence interval for glm
Hi all,
simple Q:
how do I extract the upper and lower CI for predicted probabilities
directly for a glm - I'm sure there's a one line to do it but I can't find
it.
the predicted values I get with the predict (.. "response")
Thanks
Gerard
**********************************************************************************
The information transmitted is intended only for
2009 Jan 27
2
optim() and ARIMA
dhabby wrote:
Last week I run in to a lot a problems triyng to fit an ARIMA model to a
time series. The problem is that the internal process of the arima
function
call function "optim" to estimate the model parameters, so far so good...
but my data presents a problem with the default method "BFGS" of the
optim
function, the output error looks like this:
2009 Feb 10
1
loglik and arima()
All -
I am evaluating an arima(2,1,3) and arima(3,1,3) and notice the
log-likelihood of the restricted model is higher than the log-likelihood
of the unrestricted.
Since these are nested models, I thought the unrestricted model would have
a log-likelihood at least as large as that of the restricted model. Am I
interpreting the "loglik" output incorrectly?
Regards,
Stephen
2009 May 07
2
Linear least squares fit with errors in both x and y values.
HI,
I'd like to perform a weighted linear least squares fit with R on data
with varying errors on both vectors. I can do this with one axis using
lm, but have no idea where to go from here. I've tried googling, but no
idea. Any suggestions?
Thanks,
James
2008 Dec 26
2
[Bug 19299] New: urxvt does not render fonts with background
http://bugs.freedesktop.org/show_bug.cgi?id=19299
Summary: urxvt does not render fonts with background
Product: xorg
Version: git
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/nouveau
AssignedTo: nouveau at lists.freedesktop.org
2009 Feb 03
1
SAS language to R :interview
Dear List,
Please find a frank interview with Phil Rack, creator of Bridge to R (
from both SAS and WPS interfaces).
For those unaware of WPS- it is basically a SAS language compiler
(read SAS code,writes SAS code,Reads and writes SAS datasets) ,priced
at 660 $ a licence ( or estimated 10 times cheaper than Base SAS.
The UK based WPC held, WPS doesnt have advanced statistical facilities
like
2009 Jun 03
2
how can I ordinal regression??
What function and package I use to conduct ordinal regression??
My data is composed 2colums and 180rows.
The first colum indicate level of mass and second colum is intensity.
So, I want to calculate how much intensity are related mass.
[[alternative HTML version deleted]]
2008 Dec 22
2
queue simulation
Hi all,
I have a multiple queing situation I'd like to simulate to get some idea of
the distributions - waiting times and allocations etc.
Does R has a package available for this - many years ago there used to be a
language called "simscript" for discrete event simulation and I was
wondering if R has an equivalent (or hopefully with graphics, something
better!).
Apologies if there