Indeed there is no implementation of the AAC-SSR profile in ffmpeg. I think this is because it's quite rare, so no one has yet worked on it.
There is an upstream bug, but it's had no activity for 5 years: https://trac.ffmpeg.org/ticket/1693 ** Bug watch added: FFmpeg Trac bug tracker #1693 https://trac.ffmpeg.org/ticket/1693 ** Changed in: ffmpeg (Ubuntu) Status: New => Confirmed ** Summary changed: - ffmpeg is missing ssr codec + AAC-SSR profile not implemented in ffmpeg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1737260 Title: AAC-SSR profile not implemented in ffmpeg To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ffmpeg/+bug/1737260/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
