search for: rfc8486

...ome, L-SMASH, GPAC, FFmpeg, etc.). A notable gap here is for someone to look at the changes (if any) needed for Ambisonics support [4]. [1] https://tools.ietf.org/wg/cellar/ [2] https://www.ietf.org/mailman/listinfo/cellar [3] https://github.com/VFR-maniac/Mp4Opus [4] https://tools.ietf.org/html/rfc8486 I will leave Jean-Marc to comment on the Optimization and Future Work sections. I know at least some of those things have been worked on.

...ly 2 -y ambix.opus The opusenc.exe binary does not mention a command line argument for channel mapping. In this mailing list archive, Emily Bowman mentioned 19 December 2019, that Ambisonics is an API-only feature. Is this still correct? Here's the specification: https://tools.ietf.org/html/rfc8486 Chapter 3.1 and 3.3 are important, also concerning Head-locked stereo. Here's the output of opusinfo (converted from WAV using ffmpeg): Processing file "ambix_6ch.opus"... New logical stream (#1, serial: 20487e76): type opus Encoded with Lavf58.45.100 User comments section follows...

Hi, I had found a Opus TODO list in https://wiki.xiph.org/index.php?title=OpusTodo&mobileaction=toggle_view_desktop . The item "Opus-tools" interest me. And here is my question about "Port opusdec to libopusfile/libopusurl": 1. Does this function have achieved? On one hand, I think not literally. On the other hand, after briefly reviewing opusdec.c of opus-tools, I found