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librespot/CHANGELOG.md
Jason Gray e66cc5508c
parse environment variables (#886) 
Make librespot able to parse environment variables for options and flags.

To avoid name collisions environment variables must be prepended with `LIBRESPOT_` so option/flag `foo-bar` becomes `LIBRESPOT_FOO_BAR`.

Verbose logging mode (`-v`, `--verbose`) logs all parsed environment variables and command line arguments (credentials are redacted).
2021-12-01 21:29:58 +01:00

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning since v0.2.0.

Unreleased

Changed

  • [main] Enforce reasonable ranges for option values (breaking).
  • [main] Don't evaluate options that would otherwise have no effect.
  • [playback] alsa: Improve --device ? functionality for the alsa backend.
  • [contrib] Hardened security of the systemd service units
  • [main] Verbose logging mode (-v, --verbose) now logs all parsed environment variables and command line arguments (credentials are redacted).

Added

  • [cache] Add disable-credential-cache flag (breaking).
  • [main] Use different option descriptions and error messages based on what backends are enabled at build time.
  • [main] Add a -q, --quiet option that changes the logging level to warn.
  • [main] Add a short name for every flag and option.
  • [main] Add the ability to parse environment variables.

Fixed

  • [main] Prevent hang when discovery is disabled and there are no credentials or when bad credentials are given.
  • [main] Don't panic when parsing options. Instead list valid values and exit.

Removed

  • [playback] alsamixer: previously deprecated option mixer-card has been removed.
  • [playback] alsamixer: previously deprecated option mixer-name has been removed.
  • [playback] alsamixer: previously deprecated option mixer-index has been removed.

0.3.1 - 2021-10-24

Changed

  • Include build profile in the displayed version information
  • [playback] Improve dithering CPU usage by about 33%

Fixed

  • [connect] Partly fix behavior after last track of an album/playlist

0.3.0 - 2021-10-13

Added

  • [discovery] The crate librespot-discovery for discovery in LAN was created. Its functionality was previously part of librespot-connect.
  • [playback] Add support for dithering with --dither for lower requantization error (breaking)
  • [playback] Add --volume-range option to set dB range and control log and cubic volume control curves
  • [playback] alsamixer: support for querying dB range from Alsa softvol
  • [playback] Add --format F64 (supported by Alsa and GStreamer only)
  • [playback] Add --normalisation-gain-type auto that switches between album and track automatically

Changed

  • [audio, playback] Moved VorbisDecoder, VorbisError, AudioPacket, PassthroughDecoder, PassthroughError, DecoderError, AudioDecoder and the convert module from librespot-audio to librespot-playback. The underlying crates vorbis, librespot-tremor, lewton and ogg should be used directly. (breaking)
  • [audio, playback] Use Duration for time constants and functions (breaking)
  • [connect, playback] Moved volume controls from librespot-connect to librespot-playback crate
  • [connect] Synchronize player volume with mixer volume on playback
  • [playback] Store and pass samples in 64-bit floating point
  • [playback] Make cubic volume control available to all mixers with --volume-ctrl cubic
  • [playback] Normalize volumes to [0.0..1.0] instead of [0..65535] for greater precision and performance (breaking)
  • [playback] alsamixer: complete rewrite (breaking)
  • [playback] alsamixer: query card dB range for the volume control unless specified otherwise
  • [playback] alsamixer: use --device name for --mixer-card unless specified otherwise
  • [playback] player: consider errors in sink.start, sink.stop and sink.write fatal and exit(1) (breaking)
  • [playback] player: make convert and decoder public so you can implement your own Sink
  • [playback] player: update default normalisation threshold to -2 dBFS
  • [playback] player: default normalisation type is now auto

Deprecated

  • [connect] The discovery module was deprecated in favor of the librespot-discovery crate
  • [playback] alsamixer: renamed mixer-card to alsa-mixer-device
  • [playback] alsamixer: renamed mixer-name to alsa-mixer-control
  • [playback] alsamixer: renamed mixer-index to alsa-mixer-index

Removed

  • [connect] Removed no-op mixer started/stopped logic (breaking)
  • [playback] Removed with-vorbis and with-tremor features
  • [playback] alsamixer: removed --mixer-linear-volume option, now that --volume-ctrl {linear|log} work as expected on Alsa

Fixed

  • [connect] Fix step size on volume up/down events
  • [connect] Fix looping back to the first track after the last track of an album or playlist
  • [playback] Incorrect PlayerConfig::default().normalisation_threshold caused distortion when using dynamic volume normalisation downstream
  • [playback] Fix log and cubic volume controls to be mute at zero volume
  • [playback] Fix S24_3 format on big-endian systems
  • [playback] alsamixer: make cubic consistent between cards that report minimum volume as mute, and cards that report some dB value
  • [playback] alsamixer: make --volume-ctrl {linear|log} work as expected
  • [playback] alsa, gstreamer, pulseaudio: always output in native endianness
  • [playback] alsa: revert buffer size to ~500 ms
  • [playback] alsa, pipe, pulseaudio: better error handling
  • [metadata] Skip tracks whose Spotify ID's can't be found (e.g. local files, which aren't supported)

0.2.0 - 2021-05-04

0.1.6 - 2021-02-22

0.1.5 - 2021-02-21

0.1.3 - 2020-07-29

0.1.2 - 2020-07-22

0.1.1 - 2020-01-30

0.1.0 - 2019-11-06