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Description:

just audio media kit

just_audio_media_kit #
media_kit bindings for just_audio
Breaking changes in 2.x #
The installation process has changed, please re-read the install instructions.
Installation #
In your pubspec.yaml: #
dependencies:
just_audio_media_kit: ^2.0.0

# Select the native media_kit libs based on your usage:
# NOTE: if including video libs already, these audio libs aren't necessary.
media_kit_libs_linux: any
media_kit_libs_windows_audio: any
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Note: you can also use just_audio_media_kit for Android, iOS and macOS by including the required libs (see below) and enable them in ensureInitialized(). However, this is not required as they're natively supported by just_audio.
Use mimalloc (from media-kit's README) #
You should consider replacing the default memory allocator with mimalloc for avoiding memory leaks.
This is as simple as adding one line to linux/CMakeLists.txt:
target_link_libraries(${BINARY_NAME} PRIVATE ${MIMALLOC_LIB})
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Before using the AudioPlayer, call #
// by default, windows and linux are enabled
JustAudioMediaKit.ensureInitialized();

// or, if you want to manually configure enabled platforms instead:
// make sure to include the required dependency in pubspec.yaml for
// each enabled platform!
JustAudioMediaKit.ensureInitialized(
linux: true, // default: true - dependency: media_kit_libs_linux
windows: true, // default: true - dependency: media_kit_libs_windows_audio
android: true, // default: false - dependency: media_kit_libs_android_audio
iOS: true, // default: false - dependency: media_kit_libs_ios_audio
macOS: true, // default: false - dependency: media_kit_libs_macos_audio
);
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Now you can use just_audio's AudioPlayer as normal!
Plugin-specific configuration (settings for media_kit's Player() instance) #
NOTE: these must be set the player initializes or they won't work (you can set these right after or before calling ensureInitialized)!
Set MPV's log level. Default: MPVLogLevel.error
JustAudioMediaKit.mpvLogLevel = MPVLogLevel.debug;
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Sets the demuxer's cache size (in bytes). Default: 32 * 1024 * 1204 (32 MB)
JustAudioMediaKit.bufferSize = 8 * 1024 * 1024; // 8 MB
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Sets the name of the underlying window and process for native backend. This is visible, for example, inside the Windows' volume mixer or also in pavucontrol on Linux. Default: 'JustAudioMediaKit'
JustAudioMediaKit.title = 'My Audio Player App';
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Sets the list of allowed protocols for native backend. Default: ['udp', 'rtp', 'tcp', 'tls', 'data', 'file', 'http', 'https', 'crypto']
IF YOU EDIT THIS OPTION: Remember that file is needed for playing local files, https and http are needed to play from URLs and http to play from a StreamAudioSource (and sources that implement it, like LockCachingAudioSource).
JustAudioMediaKit.protocolWhitelist = const ['http', 'https'];
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Enables or disables pitch shift control for native backend (with this set to false, setPitch won't work). Default: true
JustAudioMediaKit.pitch = true;
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Enables gapless playback via the --prefetch-playlist in libmpv. Default: false
This is highly experimental. Use at your own risk.
Check mpv's docs and
the related issue for more information
JustAudioMediaKit.prefetchPlaylist = true;
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Manually specify libmpv path (ADVANCED) #
To manually specify the libmpv path, you can use the libmpv parameter in the ensureInitialized method:
JustAudioMediaKit.ensureInitialized(
libmpv: '/usr/lib/libmpv.so.2',
);
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This is NOT NEEDED in most cases, as package:media_kit will choose the right library for you (and can even bundle libmpv via the media_kit_libs_*_* packages). If you choose to use this option, you will have to perform checks about what platform you're on and where libmpv is located in that specific platform.
Features #

Feature
Linux, Windows

read from URL
✅

read from file
✅

read from asset
✅

read from byte stream
✅*

request headers
✅ (untested)

DASH
✅ (untested)

HLS
✅ (untested)

ICY metadata

buffer status/position
✅

play/pause/seek
✅

set volume/speed
✅

clip audio

playlists
✅

looping/shuffling
✅

compose audio

gapless playback
✅**

report player errors
✅

handle phonecall interruptions

buffering/loading options

set pitch
✅

skip silence

equalizer

volume boost

* reads from byte stream via a local HTTP server provided by just_audio
** needs to be enabled
Caveats #

just_audio's shuffleOrder is currently ignored, because there doesn't seem to be a straightforward way to implement it: because of this, I recommend implementing shuffle by manually shuffling the queue, create a new ConcatenatingAudioSource and use setAudioSource on your player object.
ClippingAudioSource is currently not supported (waiting for media-kit/media-kit#581 to be released)
The plugin hasn't been tested with multiple player instances, though it should work without any issues.

Licensing #
This package is licensed under the Unlicense license, though
please note that package:media_kit (which is a direct dependency of this package) is licensed under the MIT license.
So please refer to package:media_kit for potential licensing issues.