Displaying 20 results from an estimated 2000 matches similar to: "CELT decoder complexity"
2010 Aug 20
1
CELT complexity question
Hi,
I'm testing CELT 0.7.1 speed performance and I'm focusing now on the
complexity switch. I've dug in the archive and i found some information.
Is it still true that there are two ranges?
- 0-2 low complexity mode
- 3-10 high complexity mode
If no input is given is 2 hence low complexity mode the default setting?
Does the complexity mode affect decoding as well?
Thank you
Best
2010 Sep 24
1
Celt 0.7.1 High complexity VS Low complexity
Hi,
I was checking complexity modes of CELT 07.1 encoder. If i got it
correctly everything is driven by pitch_available variable set in
celt_encoder_create function. By default it's set to 1 hence high
complexity mode is used all the time. I tried to disable it and although i
couldn't hear any particular difference in the decoded audio quality, the
cycle count of the encoder dropped
2010 Jun 24
2
Getting CELT to work under Windows
Hi,
My name is Riccardo Micci i downloaded the CELT source code and I compiled
it under Windows. This is meant to be a preliminary study for my company's
project.
When i run CELT it encodes and decodes the file back saying "Encoder
matches decoder!!". When i try to play the output though the result is
just noise and clicks.
The only changes I've applied are some #defines to
2011 Mar 22
1
MAX_PERIOD
Hi,
In order to fit the decoder in memory in our embedded architecture we set
the MAX_PERIOD #define equal to the frame size. This doesn't affect the
code bit accuracy in normal decoding. The #define it's used
celt_decode_lost function though. Is it possible to get celt_decode_lost
to work with a value different from the default?
Thanks
Riccardo
Riccardo Micci
Senior DSP Engineer,
2010 Nov 25
1
Celt_decode_lost function (File: P0773)
Hi,
I'm using Celt version 0.7.1 in low complexity mode (i.e. no pitch
information). In case a packet is lost i was planning to use the
celt_decode_lost function. I realised though it uses pitch information
inside.
Does the celt_decode_lost function still works with no pitch information?
Are there some changes to be done?
Thanks
Regards
Riccardo
Riccardo Micci
Senior DSP Engineer,
2011 Mar 03
1
Bitrev for FFT
Hi,
Our DSP has a built-in bitrev instruction so we're exploring the
possibility of calculating the bitrev every time instead of filling the
table during initialisation, hence saving some memory.
Our frame size is fixed to 320 samples. The two FFTs sizes for normal
block and short block are 160 and 40 respectively. It's not really clear
how the function
2010 Jul 07
1
FIXED_POINT
Hi,
I've recently successful built and run CELT under Windows using
"testcelt.c" example file. Since I'm about to port it on a embedded
platform i activated the FIXED_POINT #define.
I included fixed_generic.h and without other changes to the code i tried
to encode and decode the same file i previously used.
The output though is completely saturated i.e. it jumps from -32768 to
2010 Jul 20
1
BYTES_PER_CHAR
Hello,
I'm porting CELT 0.7.1 to an embedded platform and unfortunately (at least
for me) CHAR is defined as 16 bits. I now got the vocoder compiling but
when i compare the encoded output with a windows build, they don't match.
Among the other problems i think that the char definition is one of the
biggest players. I've seen in arch.h the following definitions:
/* 2 on TI C5x DSP */
2011 Mar 17
2
Error resilience
Hi,
We're testing CELT (version 0.7.1) error resilience capability. We've used
already celtdec packet-loss options. Hence we know what to expect in case
of whole packet loss.
How does Celt respond to a broken encoded packet? Is it always better to
discard it and decode the missing frame through decode_lost?
We have the hardware capability of protecting the frame with multiple
CRCs.
2010 Sep 08
1
Celt 0.7.1 Fixed math
Hi,
I'm using Celt 0.7.1 in fixed math mode. In the celt_encode function, if
the variable has_pitch is true, the function pitch_search is called.
Within this function the find_best_pitch subfunction is called.
Here the variable "float score;" is defined.
Is this right? I was expecting not to see any float declaration in the
fixed math code. Is it possible to redefine it as
2010 Jun 07
0
No subject
eds to drag in the source and header files from the libcelt directory into =
the project and define HAVE_CONFIG_H is the project's pre-processor definit=
ion.
The tricky part is to build a config.h file. To get it to work on VS some =
of the important settings include.
=20
#define CELT_BUILD
#define USE_ALLOCA
#undef VAR_ARRAYS
#undef restrict
#undef HAVE_STDINT_H
#undef inline
#define
2010 Sep 02
1
Possible Bug
Hi,
Fiddling with Celt i found a possible bug. I'm using CELT 0.7.1, frame
size 256, sample rate 32k and bitrate 64k.
Here is the scenario: decoding side, celt_decode function.
The "dec" structure is created at each function call and it's initialized
with ec_dec_init function. The attribute "end_byte" is not initialized
though. Decoding a file the behaviour is the
2011 Jan 12
1
Stereo <-> Mono
Hi,
Does Celt (in particular version 0.7.1) exploits correlation between the
two channels in stereo mode?
In practice, is it possible to use the two channels as two mono signals
without affecting quality?
Thanks
Best Regards
Riccardo
Riccardo Micci
Senior DSP Engineer, Wireless Group
Cambridge Consultants
Science Park, Milton Road
Cambridge, CB4 0DW, England
Switchboard: +44 (0)1223
2007 Nov 09
1
segmentation fault when no decoder found
Hi,
to reproduce play the main movie on this page http://www.mymovies.it/trailer/?id=46437
SWFDEC: ERROR: swfdec_resource_request.c(66): swfdec_player_request_resource_now: not allowing access to http://trailer.mymovies.it/filmclub/2007/07/113/trailer.flv
SWFDEC: WARN : swfdec_movie_asprops.c(241): mc_width_set: trying to set width to a non-finite value, ignoring
SWFDEC: ERROR:
2008 Jul 15
3
windows resolution
Hy
my name is riccardo, write from italy, i''m a student and i don''t know very
well english
I use xen 3.2-1 with Debian Etch, kernel 2.6.18
excuse me for
my bad english
I have installed Windows XP in hvm, it''s boot but the
resolution is 640x480 and use only 4 bit for colors
thank a lot
riccardo
_______________________________________________
Xen-users mailing
2017 Dec 06
1
SAMBA VFS module for GlusterFS crashes
Dear Anoop,
thank you very much for your detailed explanation.
> I think you are hitting a bug[1] from vfs module for GlusterFS inside Samba during a realpath()
> call.
>
> This regression got in when glfs_realpath() was modified in GlusterFS[2] to correctly handle memory
> allocation and corresponding freeing of string arguments. And this particular change is present from
>
2018 Nov 30
2
Errors wih fts-solr
Thanks,
but how? I looked through solr documentation and found anything useful.
For now got it working setting up nginx and strip down the header, but I
think it isn't the proper solution.
Cheers
Il giorno ven 30 nov 2018 alle ore 09:48 Aki Tuomi <
aki.tuomi at open-xchange.com> ha scritto:
>
> On 28.11.2018 9.52, Riccardo Bicelli wrote:
> > Hello,
> > I recently
2008 May 19
1
[Bug 10840] Swfdec should support AVM2
http://bugs.freedesktop.org/show_bug.cgi?id=10840
--- Comment #10 from Riccardo Magliocchetti <riccardo at datahost.it> 2008-05-19 00:44:29 PST ---
*** Bug 15990 has been marked as a duplicate of this bug. ***
--
Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the QA contact for the bug.
You are the
2008 Apr 11
1
[Bug 12435] cpu hog loading explosm cartoon
http://bugs.freedesktop.org/show_bug.cgi?id=12435
--- Comment #12 from Riccardo Magliocchetti <riccardo at datahost.it> 2008-04-11 09:30:26 PST ---
It loads very fast with latest git, still high on cpu while playing but from
profiling there's no trace of swfdec over 1%, mostly cairo and pixman.
I'd like to wait closing this until i've been able to profile with cairo 1.6.0.
2007 Aug 23
6
mongrel + pound + ziya problems
Hi,
i''m using to ziya to display some graph.
If i use it running mongrel as single instance all work good (very slow
but work).
If i try to use it with pound as htto proxy ziya charts wait forever for
data...that never arrive.
If i check the mongrel log it seemes to make queries on the database and
retrieve data,but nothin appera.
Anyone have an idea on how i can solve this problem?