Opus documentation: lowdelay is too trivialized
|Reported by:||Mingye Wang||Owned by:|
|Blocking:||Reproduced by developer:||no|
|Analyzed by developer:||no|
Description (last modified by )
Summary of the bug:
FFmpeg currently describes (at https://ffmpeg.org/ffmpeg-codecs.html#libopus-1)
-application lowdelay as simply "Restrict to only the lowest delay modes." This is true, but does not cover the whole picture. Compare the Official documentation of OPUS_APPLICATION_RESTRICTED_LOWDELAY: "Only use when lowest-achievable latency is what matters most. Voice-optimized modes cannot be used."
A better wording based on the above would be:
"Restrict to only the lowest delay modes by disabling voice-optimized codec. This is usually unnecessary, as basic Opus already has a delay of 26.5 ms. Try -frame_duration before using this."
How to reproduce:
Well, just navigate to the page. Or
ffmpeg -h enccoder=libopus