similar to: How to identify packets to input to opus_decode()

Hello all, Attached are patches for libopusenc, opusfile and opus-tools in order to provide support for Ambisonics and the Projection API for encoding/decoding channel mapping 253 and 254. Please feel free to ask any questions or give any feedback you might have. :) Cheers, Drew -------------- next part -------------- An HTML attachment was scrubbed... URL:

Excellent, thanks Tim for writing back so quickly! Cheers, Drew On Tue, Mar 6, 2018 at 6:25 PM, Timothy B. Terriberry <tterribe at xiph.org> wrote: > Drew Allen wrote: > >> Please feel free to ask any questions or give any feedback you might >> have. :) >> > > A few comments from a quick glance through the opusfile patch: > > You unconditionally

On 23/02/15 10:30 AM, Tony wrote: > I __think__ opus-tools' opusenc has code which can be used as a > template/sample for how to create an .Ogg file with Opus content. As > expected, it makes use of libopus and libogg. Sadly that's the best option currently. As you say it's a bit complicated, although oggenc has a lot of extra support for controlling encoder options you

Which one of the various libraries on xiph.org allow me to create an Opus file? The 3 or so libraries on the Opus download page all seem to be for reading files, converting and/or encode/decode streams. I have device that outputs a stream of Opus 'frames' and I need to save them into an Opus file. -- Tony -------------- next part -------------- An HTML attachment was scrubbed... URL:

I would like to decode an Opus file in chunks (e.g. 16K byte array). Is this possible with the Opusfile library or would I need to interface directly with libogg and libopus? It seems like the Opusfile decoder functions maintain an internal pointer/state for OggOpusFile during multiple calls to op_read(OggOpusFile *_op ...) and a complete byte array of the entire Opus file would be needed. Any

Dear Opus community, I'm trying to build opusfile as a shared (.dll) library on Windows 10 using Visual Studio 2017. I know there are prebuilt libraries, but those are depending on a whole bunch of other libraries and x86 (32 bit) only. Whenever I try to build opusfile, it generates opusfile.dll, which is basically empty (no functions), which makes it unuseable. This is most likely because

Hello, We have a use case where we want to record an opus RTP stream to a .opus file. We want to fill in any gaps in the stream, and we also want to take advantage of inband FEC whenever possible. The ogg/opus draft describes[1] how to fill in gaps by generating zero-byte frames, but I do not understand how (and if) FEC can be used. Is this possible, and if so, what is the recommended way of

I have been challenged by someone that opusfile's 48kHz most of the time forced resampling but I didn't have good arguments to counter. I've checked the opus-codec.org pages and Monty's pages without finding good arguments. If you encode files to .opus with opusenc and decode with opusfile's api the sampling rate is constantly 48kHz ignoring output hardware isn't it? Is

Hi. I am trying to understand how to package opus-encoded data in an ogg stream to make a standards-compilant ogg/opus file. Most things are clear, but there is one thing I simply do not understand. What I do understand is that Ogg is based on pages, that each come with a fairly sizeable header (>=27 bytes). Now, I encode with a fairly low bitrate, so my opus packages are <100 bytes long.

On 20/08/13 08:38 PM, alpha thinktink wrote: > However, if I try to load the new libopusurl-0.dll from the same folder > as I have always done as with the other libraries, I get a NULL HMODULE > handle from LoadLibraryW and GetLastError() return error code 126 - "The > specified module could not be found." In addition to what Tim said, do you get the same error loading

I am writing a program that retrieves and plays .opus files over the network. I am using the C# PInvoke wrapper OpusFileSharp, which calls into libopusfile and passes callbacks for read, seek, and tell. I want to enable seeking via the seek callback by not returning -1, but I find that as soon as I do libopusfile requests the last 64K of the .opus file, probably so it can calculate the

Thanks for the quick response. That makes sense. I just wanted to make sure it wasn't an easy fix, or that I wasn't overlooking something. My scenario calls for very low latency playback with a user being able to jump between many files quickly, or seek quickly. This means I am priming the pump by downloading the first chunk of many files that are likely to be started soon. I was

Hello all, Sorry for the delay (got really sick last week). Attached are updated patches for libopus, libopusenc, opusfile and opus-tools. Note that the patches for libopusenc, opusfile and opus-tools are dependent on the patch for libopus. Please let me know if you have any additional followup comments or questions. Cheers, Drew -------------- next part -------------- An HTML attachment was

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I'm pleased to announce the availability of opusfile v0.4. The opusfile and opusurl libraries provide a high-level API for decoding and seeking within .opus files on disk or over http(s). * https://ftp.mozilla.org/pub/mozilla.org/opus/opusfile-0.4.tar.gz * https://ftp.mozilla.org/pub/mozilla.org/opus/opusfile-0.4.zip *

Hello Tony, opusenc from opus-tools works for me.. Just tried it successfully on my x86_64 Ubuntu Trusty 14.04 box. I was just able to do $ sudo apt-get install opus-tools $ opusenc music_48kbps.wav music_48kbps.opus I remember also being able to compile opus-tools (git://git.xiph.org/opus-tools.git) some time ago. Regards, Vish On 23 February 2015 at 12:30, Tony <yellowjacketlite at

Hi Drew, I think the libopusenc patch is better, but there's still a few issues left: 1) The static MAX_PACKET_BUFFER_SIZE value is still problematic because if you link libopusenc with a new version of libopus that supports higher order projection or just more projection channels for order 3, then you will overflow the buffer. I think what you'd want is a _ope_opus_header_get_size() call

Red Hat Enterprise Linux Server release 6.4 (Santiago) gcc version 4.4.7 20120313 (Red Hat 4.4.7-3) (GCC) We see the issue in all our Intel based Linux servers. Thanks Suresh On 21 April 2015 at 12:41, Jean-Marc Valin <jmvalin at jmvalin.ca> wrote: > Still can't reproduce. What OS and compiler version? > > Jean-Marc > > On 21/04/15 02:48 AM, Suresh Thiriveedi

Hi, There is no change in the compiler flags. I'm using as it is from the original code. No change in the Makefile and I believe it is using the floating point only by default. We are using 8k samples and mono so the commands is as follows. [root at MEDIA opus-1.1]# ./opus_demo -d 8000 1 opus_encoded_crash.opus opus_encoded_crash.pcm *And segmentation is as below..*. ............ Calling

Apologies! That patch will not work correctly with Opus 1.2. Will send an updated patch shortly!! On Mon, Mar 26, 2018 at 11:56 AM Drew Allen <bitllama at google.com> wrote: > Hello all! > > I've attached an updated patch for opusfile, based on formatting > suggestions I got for the opus and libopusenc patches. > > Cheers! > Drew > > On Thu, Mar 22, 2018 at

Thanks! 2 down, 2 to go. :D :D :D On Wed, Mar 21, 2018 at 11:19 PM Jean-Marc Valin <jmvalin at jmvalin.ca> wrote: > Thanks, the libopus and the libopusenc patches are now merged. > > Cheers, > > Jean-Marc > > On 03/20/2018 12:36 PM, Drew Allen wrote: > > Attached is an updated patch based on Jean-Marc and Mark's comments. :) > > > >