Skip to content

Liquidsoap 2.1.0
Compare
Choose a tag to compare
@toots toots released this 17 Jul 17:45
v2.1.0
ce156dc
This commit was created on github.com and signed with GitHub’s verified signature. The key has expired.
GPG key ID: 4AEE18F83AFDEB23
Expired
Verified
Learn about vigilant mode.

This is the first release of the 2.1.x release branch! 🎉

This version comes with some major improvements and breaking changes. As usual, you can get a (mostly) complete list in the migration page

In particular, the following changes are noticeable:

JSON parsing is greatly improved

You should now be able to do:

let json.parse ({
  foo,
  bla,
  gni 
} : {
  foo: string,
  bla: float,
  gni: bool 
}) = '{ "foo": "aabbcc", "bla": 3.14, "gni": true }'

For any one who has ever tried to parse json in their liquidsoap scripts, this is gonna be a game changer. We have a detailed article here

Partial function application has been removed.

This is not so much an improvement but something we thought was an acceptable trade-off. Support for partial application is creating a lot of complexity in the language's implementation and not a lot of users are actively using it. This change means that instead of doing:

def f(x, y) =
...
end

g = f(0)

You will now have to do:

def f(x, y) =
...
end

def g(y) =
  f(0, y)
end

Regular expressions are now first-class entities.

This should be familiar to anyone used to working with Javascript's regular expression. So, now, instead of doing:

string.match(pattern="\\d+", s)

You will now do:

r/\d+/.test(s)

There's a detailed description of this new feature here.

Full Changelog:

2.1.0 (2022-07-15)

New:

  • Added support for variables in encoders (#1858)
  • Added support for regular expressions (#1881)
  • Added generalized support for value extraction patterns (#1970)
  • Added support for string getter for http.{post,put} operations (#1984)
  • Added output.youtube.live.hls
  • Rewrote out internal JSON parser/renderer (#2011). Breaking change values
    that cannot be represented as JSON will now raise error.json when
    converted to JSON. infinite and nan floats can be exported using the
    json5 export format.
  • Added socket API (#2014).
  • Added support for ffmpeg bitstream filters (#2387)
  • Added liquidsoap.version.at_least.
  • Added video.rectangle, video.persistence.
  • Added video.vumeter.
  • Added video.slideshow.
  • Added video.add_text.camlimages (#2202).
  • Added video.text.* and re-implemented video.add_text.* from those (#2226).
  • Added irc.channel operator to retrieve the contents of an IRC channel
    (#2210).
  • Added new in-house parsing of metadata for some image and video formats
    (#2236).
  • Added file.download
  • Added new options for %ffmpeg copy encoder: ignore_keyframes
    and wait_for_keyframe (#2382)

Changed:

  • Removed support for partial application, which should avoid some type errors,
    improve performance and simplifies the code related to the reduction (#2204).
  • Video dimensions (width and height) can now be specified per stream in the
    type and are then used instead of the default ones. For instance, you can now
    write 
    s = (single("file.mp4") : source(video(width=300,height=200)))
    in order to force the decoding of a file to be performed at the 300×200
    resolution (#2212).
  • Video images are now canvas, which means that they do not directly contain
    the images, but are constituted of multiple images placed at various
    positions. This should make much more efficient operations such as making
    videos from multiple ones, adding a logo, etc. (#2207)
  • output.youtube.live renamed output.youtube.live.rtmp, remove bitrate and
    quality arguments and added a single encoder argument to allow stream copy
    and more.
  • source.on_metadata and source.on_track now return a source as this was the
    case in previous versions, and associated handlers are triggered only when the
    returned source is pulled (#2103).
  • Made streams_info parameter of output.file.hls a record (#2173).
  • Disable scrolling by default in video.add_text. You can re-enable it by
    using video.add_text(speed=70, ...).
  • Added "example" sections to operators documentation, we now need to populate
    those (#2227).
  • Default implementation of video.testsrc is now builtin, previous
    implementation can be found under video.testsrc.ffmpeg.
  • Images can now generate blank audio if needed, no need to add
    mux_audio(audio=blank(),image) anymore (#2230).
  • Removed deprecated timeout argument in http.* operators.
  • Deprecated request.ready in favor of request.resolved.

Fixed:

  • Fixed typo in status command of the mix operator.
  • Fixed performances issues with input.ffmpeg and input.http (#2475)
  • Fixed list.shuffle which was used to randomize playlists in playlist
    operator (#2507, #2500).
Assets 45
Loading