social.noyu.me

PSA: the default AAC encoder in ffmpeg is terrible even at very high bitrates, you are literally better off telling it to use MP3, even at a similar bitrate (e.g. -acodec mp3 -b:a 256k) https://twitter.com/puella_meiberu/status/1819373771280535810

@hikari you can use Android's AAC codec with -acodec libfdk_aac if your FFmpeg is built with it (most distributions are not, as it is under a custom license which is incompatible with the GPLv3)
on macOS you can use the system AAC codec with -acodec aac_at (there's also hacks available to build this support on windows using itunes' build of it)

@hikari note that Fedora's position is that FDK AAC is GPL-compatible iff it is patched to remove all code encumbered by non-expired patents. this appears to explicitly diverge from Debian and the FSF's position

@leo oh i did not know there was a dispute about how free fdk-free is! could you give me pointers to more info?

@hikari brief post on the fedora legal mailing list https://lists.fedoraproject.org/archives/list/legal@lists.fedoraproject.org/thread/OVW25JRWOKOLVMW3XGUX7E4OXFUR2RCG/
armchair lawyer argument on bugzilla https://bugzilla.redhat.com/show_bug.cgi?id=1501522

@hikari Debian apparently ignored the patent part and took issue with other parts of the license https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=694257
and the FSF mentions the patent clause separately, and doesn't clarify their reasoning for it being GPL(v2)-incompatible

@hikari Debian switched to packaging fdk-aac-free but still puts it in non-free. despite this there's an LGPLv2.1 package in contrib (gstreamer1.0-fdkaac) with a hard dependency on it