4 ms·

Probably because there's no widely available encoder. Why hasn't this been folded into ffmpeg/sox/etc?

by tacos 10y ago

shmerl 10y ago
Not sure what you mean. opusenc works just fine and is perfectly portable. ffmpeg also supports it through libopus for quite some time. See https://www.ffmpeg.org/ffmpeg-codecs.html#toc-libopus-1 https://www.ffmpeg.org/ffmpeg-codecs.html#toc-libopus-1
- tacos 10y ago
  It's decode only for some reason. For whatever reason sox and libsndfile won't touch it; ffmpeg won't encode it. And iOS and Android browsers won't play it. Shame because it's clearly the current winner.
  - shmerl 10y ago
    ffmpeg should encode it if it was built with --enable-libopus. May be you are using one without it? Firefox supports Opus everywhere. Chrome I think should too, since it's needed for WebRTC. Safari obviously doesn't, as I said, Apple can't stand free codecs.
    - tacos 10y ago
      http://caniuse.com/#feat=opus http://caniuse.com/#feat=opus Strangely absent across all mobile platforms at the moment. And even Firefox won't play it as .webm only .ogg. (Huh?) Man, why is audio always so wonky?
      - vetinari 10y ago
        I'm not so sure that the link has correct info. On Android, support for OPUS is mandatory for 5.0 and newer (by CTS). I would be surprised if the browsers would implement codecs by themselves, instead of passing the streams to the system for decoding.
      - shmerl 10y ago
        Firefox can play it as .opus
      - TD-Linux 10y ago
        Recent changes to ffmpeg broke opus in webm in some cases, if you're using git master: https://trac.ffmpeg.org/ticket/5509 https://trac.ffmpeg.org/ticket/5509
  - TD-Linux 10y ago
    You forgot to build ffmpeg with --enable-libopus. ffmpeg has its own reimplemented decoder, but relies on libopus for encoding.
    - tacos 10y ago
      I said "widely available." When distros bundle an ffmpeg encoder, it's widely available. When libsndfile and sox support it, the format migrates toward common use. "build ffmpeg" is a nonstarter for most mortals.
      - shmerl 10y ago
        What distros bundle it without libopus? Debian has it enabled for example.

Probably because there's no widely available encoder. Why hasn't this been folded into ffmpeg/sox/etc?

by tacos 10y ago

Probably because there's no widely available encoder. Why hasn't this been folded into ffmpeg/sox/etc?

Not sure what you mean. opusenc works just fine and is perfectly portable. ffmpeg also supports it through libopus for quite some time. See https://www.ffmpeg.org/ffmpeg-codecs.html#toc-libopus-1 https://www.ffmpeg.org/ffmpeg-codecs.html#toc-libopus-1

tacos 10y ago
It's decode only for some reason. For whatever reason sox and libsndfile won't touch it; ffmpeg won't encode it. And iOS and Android browsers won't play it. Shame because it's clearly the current winner.
- shmerl 10y ago
  ffmpeg should encode it if it was built with --enable-libopus. May be you are using one without it? Firefox supports Opus everywhere. Chrome I think should too, since it's needed for WebRTC. Safari obviously doesn't, as I said, Apple can't stand free codecs.
  - tacos 10y ago
    http://caniuse.com/#feat=opus http://caniuse.com/#feat=opus Strangely absent across all mobile platforms at the moment. And even Firefox won't play it as .webm only .ogg. (Huh?) Man, why is audio always so wonky?
    - vetinari 10y ago
      I'm not so sure that the link has correct info. On Android, support for OPUS is mandatory for 5.0 and newer (by CTS). I would be surprised if the browsers would implement codecs by themselves, instead of passing the streams to the system for decoding.
    - shmerl 10y ago
      Firefox can play it as .opus
    - TD-Linux 10y ago
      Recent changes to ffmpeg broke opus in webm in some cases, if you're using git master: https://trac.ffmpeg.org/ticket/5509 https://trac.ffmpeg.org/ticket/5509
- TD-Linux 10y ago
  You forgot to build ffmpeg with --enable-libopus. ffmpeg has its own reimplemented decoder, but relies on libopus for encoding.
  - tacos 10y ago
    I said "widely available." When distros bundle an ffmpeg encoder, it's widely available. When libsndfile and sox support it, the format migrates toward common use. "build ffmpeg" is a nonstarter for most mortals.
    - shmerl 10y ago
      What distros bundle it without libopus? Debian has it enabled for example.