similar to: CELT license

I too would like to know the status of the opus IP holders. From what I've seen on the CELT and opus lists, it seems that the CELT part of opus is covered by patents from Xiph and Broadcom, and the SILK part of opus is covered by the rest. All of the IP holders except Qualcomm and Huawei have released their patents to the public as far as opus is concerned, and the general consensus from

# make make all-recursive make[1]: Entering directory `/tmp/celt-0.7.0' Making all in libcelt make[2]: Entering directory `/tmp/celt-0.7.0/libcelt' /bin/sh ../libtool --tag=CC --mode=compile gcc -std=gnu99 -DHAVE_CONFIG_H -I. -I.. -s -O3 -march=i686 -fvisibility=hidden -W -Wstrict-prototypes -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wno-parentheses

On 09/12/2007, Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> wrote: > > The full source for CELT is available at: > http://downloads.us.xiph.org/releases/celt/celt-0.0.1.tar.gz > or through git at http://git.xiph.org/celt.git It seems the current version of celt in git has an experimental Ogg mapping ... I've written up the bos page at

--- celt/arch.h | 2 ++ celt/arm/fixed_arm64.h | 75 ++++++++++++++++++++++++++++++++++++++++++++++++++ celt_headers.mk | 1 + 3 files changed, 78 insertions(+) create mode 100644 celt/arm/fixed_arm64.h diff --git a/celt/arch.h b/celt/arch.h index 9f74ddd..219569b 100644 --- a/celt/arch.h +++ b/celt/arch.h @@ -122,6 +122,8 @@ static OPUS_INLINE opus_int16 SAT16(opus_int32 x)

--- celt/arch.h | 2 ++ celt/arm/fixed_arm64.h | 75 ++++++++++++++++++++++++++++++++++++++++++++++++++ celt_headers.mk | 1 + 3 files changed, 78 insertions(+) create mode 100644 celt/arm/fixed_arm64.h diff --git a/celt/arch.h b/celt/arch.h index 9f74ddd..219569b 100644 --- a/celt/arch.h +++ b/celt/arch.h @@ -122,6 +122,8 @@ static OPUS_INLINE opus_int16 SAT16(opus_int32 x)

Aymeric Moizard a ?crit : >> None of that is defined yet, though I'm open to suggestions on how to do >> the mapping. > > CELT/44100 and CELT/48000 > a=fmtp:105 stereo=on > > probably a latency value? It would definitely need a frame_size value > "CELT" doesn't seems to be used for any other existing audio related > stuff? right? Not yet.

Diana Cionoiu a ?crit : > Hi Jean-Marc, > > 1. Why CELT versus Speex? There's nearly no overlap between Speex and CELT. CELT is much higher quality, very low latency, and of course, higher bit-rate than Speex. So it really depends on the application. > 2. What's the RTP payload for CELT, so we can add it in Yate? > 3. What are the SDP declaration parameters? None of that

Hi all, Just a quick note to let you know that we are currently integrating CELT with our DAB transmission and reception software tools. We plan to have a working demo at the broadcast conference IBC 2009 in September where we have a small booth. We hope to be able to demonstrate a real-time DAB CELT encoder as part our our Live CD based on Ubuntu and GNU/Radio (

I need to test the latency of a system that I ported CELT to. I'd like to set a flag when the stream "changes". In order to see the stream "change", I'd like to be able to scan the compressed CELT directly to set the flag. ie. I'd like to be able to find a byte or two that change reliably between two values when the stream "changes". I don't

I am aware of a couple CELT users running the codec across a bit-error channel where corruption takes the form of flipped bits (such as a raw wireless link) rather than a packet-loss channel (like ethernet or an IP network). CELT has been designed to work reasonably well on both kinds of channel. You can turn a bit-error channel into a packet-loss channel by including a CRC across the entire

Hi, folks, I have an old CELT thing that I'm updating to Opus and I'm trying to get individual pieces upgraded.  My first task is upgrading the CELT encoder to Opus. The old CELT thing treated the L and R channels as independent mono streams, encoded them somehow with CELT to form one bitstream, sent one bitstream across, and then unpacked it manually after the decoder. Can I do that

Hi Jean-Marc, 1. Why CELT versus Speex? 2. What's the RTP payload for CELT, so we can add it in Yate? 3. What are the SDP declaration parameters? Diana Jean-Marc Valin wrote: > Hi everyone, > > I'm happy to announce CELT version 0.5.0. This release includes > simplifications to the bit allocation code and includes a new > low-complexity mode that can be enabled (without

Hi, This isn't that new anymore, but I'd let everyone know that CELT 0.10.0 is out. We've improved the quality quite a bit since the last release and we fixed many bugs. For this release, Monty has written an extensive demo page at: http://people.xiph.org/~xiphmont/demo/celt/demo.html Although it's not final yet, it contains a lot of information of CELT, recent changes and

I saw the custom API, but nothing explicitly says "CELT-only" just "custom sample rate and frame size". I'll dig further now that you've pointed me in a direction. Thanks, -a On 7/6/15, 6:18 PM, Jean-Marc Valin wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > I believe what you want is called Opus custom (OPUS_CUSTOM in the > code).

[I'm primarily intending this message for the developers of netjack, but it may be of interest to other CELT users] Greetings. Jean-marc was concerned that CELT application developers may incorrectly send in non-scaled integers (like ?32767) into the float interface of CELT and thus unintentionally create software which was incompatible with everyone else (and particularly, very incompatible

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 I believe what you want is called Opus custom (OPUS_CUSTOM in the code). With that you can compile only the contents of the celt/ directory and use it like the old CELT. Jean-Marc On 07/06/2015 06:48 PM, Andrew Lentvorski wrote: > Is there a configuration or compile flag that lets me disable the > SILK portion of the codec and use CELT

--- celt/fixed_generic.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/celt/fixed_generic.h b/celt/fixed_generic.h index ac67d37..1cfd6d6 100644 --- a/celt/fixed_generic.h +++ b/celt/fixed_generic.h @@ -37,16 +37,32 @@ #define MULT16_16SU(a,b) ((opus_val32)(opus_val16)(a)*(opus_val32)(opus_uint16)(b)) /** 16x32 multiplication, followed by a 16-bit shift right. Results

Hi Jean Marc, I was very impressed by the comparative results. Could you give a bit more information about what really are 7kHz and 3.5kHz in the 48kHz table? I am looking forward that this will bring a bigger separation between the basic tools and speex in a sense that the basic tools could be used with more than one codec. I even understand that there is interest in the tools alone (Echo

hey great job with the celt codec. im very eager to use it. im just wondering how? there is little to no documentation on how to use the celt codec. is there anyway to encode an icecast stream using the celt codec? or is there any software with celt support built in? thanks. -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi , We've downloaded the CELTV0.11.1 source code from celt-codec.org . But having trouble with mathops-test and tandem-test unit test that exercises internal components of CELT codec, please find attached document for each test case failure in details. Also could you please give some inputs on CELT Low complexity code and full version of the code, point me source code to CELT