Displaying 20 results from an estimated 30000 matches similar to: "Ports of Ogg"
2009 May 19
2
Regarding cross compiling of ogg vordis decoder to arm board
Hi,
Tis is kiran. I ve a project in which v have to cross compile the source
code of ogg vorbis audio decoder onto EDB9302 ARM board..
Can u pls tell me the steps how to proceed or lead me to a source whr i can
find the procedure...
Thank u
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
2013 Mar 22
2
Min and max cutoff frequency
On Thu, Mar 21, 2013 at 9:54 AM, Fernando Alberto Marengo Rodriguez <
fmarengorodriguez at yahoo.com.ar> wrote:
> I am asking this because we are studying the OGG Vorbis format and its
> applications. We are very interested in constructing an audio player
> hardware, based on DSP or DSPic, and the audio files are stored in an SD
> card.
>
What is your motivation for
2004 Apr 30
3
Problems on TI DSP c6701
Hi all:
I am a newbie to vorbis, and I want to develop vorbis decoder onto TI c6701 evm board.
And I try the tremor code and libvorbis and the code from http://www.xiph.org/archives/tremor/200210/0001.html .
But all of them stll work good in MSVC but terrible in c6701.
I dont know wher the problem is??Problem of code or problem of memory allocation?? it decodes almost noise,....
When I
2013 Mar 21
2
Min and max cutoff frequency
> Presuming that you are asking regarding the Ogg Vorbis audio format, the
> correct answer is: there is no minimum or maximum cutoff frequency. Vorbis
> can code all frequencies from DC to Nyquist. What Vorbis will actually do
> is extremely complex, extremely nonlinear, and highly dependent on bitrate.
> If you are in the mentality of linear time-invariant filters, you will
2007 Oct 07
1
Speex on DSPic, violation of license?
On 10/1/07, Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> wrote:
> I'm aware of Microchip's closed-source port of Speex to the dsPIC. As
> far as I know (haven't checked the details), this is perfectly legal,
> even though I think it's a dumb decision for a company that's in the
> business of selling chips. I say it's dumb because by not contributing
2007 Nov 06
5
OGG decoding/multi-channel mixing
Hi All,
Currently I am investigating how interesting OGG is for me.
The most important requirements are:
- Decoding on embedded hardware, ARM7 or ARM9.
- Mixing multiple audio streams/files on embedded hardware
First of all how difficult is it to decode OGG on an ARM7/9 processor? I read that OGG decoding needs floating point support?
Secondly I would like to know how many MIPS are needed to
2005 Jun 21
3
ARM port?
Hello,
I am new at this list and a developer from germany. I would like port ogg
vorbis to an ARM based embedded system. I have lots of this boards in stock
that have an EP7309 processor and a good quality crystal D/A on board. Does
anybody known if there is an port for ARM available? If not what can I do?
Could I help to do this work?
Best regards Erik
-------------- next part --------------
A
2004 Dec 16
3
Qyery on bark equation in floor0 code
Hi All,
I need some clarifications regarding the mismatch I found in the code
and the specification.
(a) In the specification, the bark(x) equation is given as:
bark(x) = 13.1 atan(.00074x) + 2.24 atan(.0000000158(x^2)) + .0001x
whereas in the code it is given as:
#define toBARK(n)
(13.1f*atan(.00074f*(n))+2.24f*atan((n)*(n)*1.85e-8f)+1e-4f*(n))
Which one of these is the proper one ?
(b)
2007 Oct 23
1
Speex DSPic
Hi I was wondering if someone may help. We are currently using a DSPic to
store speex data on a Smart Card.
We have now decided to use a PC to playback the speex data. The only problem
is our data does not have the
Correct header. Do you know if there is an example in C++ that can take a
string of speex frames and construct the correct
Header so that it can be played back using a pc based
2008 Sep 02
1
How can I minimize the memory use in Tremor?
Hi all,
I'm porting the Tremor code to an ARM platform. Unfortunately, we didn't use the low mem branch code for CPU performance consideration, and now I find the memory use in it is huge for the embedded system.
After looking into the code, I found the header parse, especially, the codebook unpack part takes a lot of memory. Tremor decodes the codebooks to a cache to store
2003 Jun 03
1
Ogg Traffic for June 3, 2003
Hi everybody:
It's been a while, so here is the latest round of Status Updates from
just about everybody in Xiph. The HTML version is at
http://www.vorbis.com/ot/20030603.html
Enjoy!
<p>Ogg Traffic for Tuesday, June 3, 2003
Author: Carsten "Purple" Haese
Contact: [1]carsten@xiph.org
Date: June 3, 2003
Table of Contents
1 Status Updates
2010 Apr 20
5
Tremor maintenance
hi,
could someone please apply these to Tremor svn?
0001-update_symbols.patch
there are 3 public symbols in the headers, which are missing in the
linker script and thus marked as private again. This causes issues for
e.g. gstreamer (https://bugzilla.gnome.org/show_bug.cgi?id=616194).
0002-pkgconfig.patch
this adds a pkg config file
You probably also want to do something like
Index:
2014 Mar 20
2
BARK implementation (or specification) error
Hi,
In the course of some work which I describe below, I have found a very significant difference between the BARK function described in the Vorbis specification and its implementation in libvorbis.
In the specificationhttp://xiph.org/vorbis/doc/Vorbis_I_spec.pdf
bark(x) = 13.1arctan(.00074x) + 2.24arctan(.0000000185x**2 + .0001x)
In the libvorbis code
2007 Mar 08
3
low-memory vorbis decoding
Hi all,
Does anyone have any experience porting libvorbis to platforms with
small total memory sizes? Specifically, I'm trying to figure out if
it's feasible to run Ogg Vorbis decoding on one of the PlayStation 3's
SPU's -- secondary processors with only 256kb of local memory. It looks
like out of the box the memory footprint of libvorbis is roughly:
~130k code
~60k static
2009 Oct 22
1
Is it possible to seek different Ogg Vorbis encoded packets from the File?
Hi All,
I am trying to program the 'Tremor' decoder onto an array of Processors.
I am using four Processors.
I did this experiment: I split the while(!eof){} in the main() in to
four tasks using if(!eof) statements. In this modification, each if()
decodes one packet of data at-a-time, sequentially. Then, I ran the code on
a single Processor and the decoding was successful. The
2004 Sep 21
6
Vorbis decoder sample code
Hi,
I'm a Pocket PC developer and have created a audio translator application on this platform. I currently make use of
an MP3 decoder engine, but due to heavy licensing fees I'm thinking of switching over to a patent free format.
Vorbis presents the best approach.
I read that tremor decoder has been especially optimized for embedded devices. I'd like to make use of
this and
2006 Aug 29
3
How can I seek in Ogg Vorbis file, but not using Vorbisfile library?
Hello, All.
I am making an Ogg Vorbis decoder based on Tremor. The Vorbisfile library provides a high-level API which enables us to seek in the file, but it needs to declare a pointer to OggVorbis_File structure.
Because I am supposed not to use file, so I can't use the ov_pcm_seek() or ov_raw_seek() functions to seek in the file. For decoding an Ogg Vorbis file, I first put it in
2008 Aug 13
1
Tremor + upstream Ogg library
Hi vorbis experts!
I'd like ot write application under Symbian that use theora as video
codec & tremor as an audio one. I played at first with libogg &
theora on PC, then successfully ported them both. Next I decided
to port Tremor but I found that it use its own files from Ogg library.
The API is almost identical, so I tried to bind the Tremor with upstream
Ogg library (it actually
2003 Sep 29
3
Why is Vorbis development slow?
Dropping the other topic as requested, I'd like to
follow something up in a new thread. I want to throw a
question or two out there and see what responses
people give (if any ;-).
Assuming that you think Vorbis could have developed
faster than it has done in the past year, what in your
opinion has been holding it back and what remedies do
you suggest?
Speaking for myself, I think that it
2005 Jan 31
2
Questions regarding OGG implementation on DSP
As to tremor fixed-point implementation, i got several questions, and hopefully some one can help me out.
Thanks a lot!
1. For DSP chips with small and limited memory, how much memory do we really need for
saving all codebooks before we start to decode audio packets? Can the bit-rate give us some clues?
Is there some simple guidelines for this?
2. For CRC error protection, it seems to me that