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apple/ios/iphone: maybe fix background album playback

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good news: apple finally added support for samplerates other than
44100 for AudioContext, meaning it would now have been possible to
set non-100% volume for audio files including opus files

bad news: apple broke AudioContext in a way that makes it bug out
mediaSessions, causing lockscreen controls to become mostly useless

bad news: apple broke AudioContext additionally where it randomly
causes playback issues, blocking playback of audio files, even if
the AudioContext is sitting idle doing nothing (which is a
requirement for reliable upload speeds on other platforms)

disable AudioContext on iOS
This commit is contained in:
ed 2023-08-31 19:57:05 +00:00
parent 1c0d978979
commit 9986136dfb
2 changed files with 5 additions and 3 deletions
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5
README.md
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@ -285,8 +285,7 @@ server notes:
* Android: music playback randomly stops due to [battery usage settings](#fix-unreliable-playback-on-android)
* iPhones: the volume control doesn't work because [apple doesn't want it to](https://developer.apple.com/library/archive/documentation/AudioVideo/Conceptual/Using_HTML5_Audio_Video/Device-SpecificConsiderations/Device-SpecificConsiderations.html#//apple_ref/doc/uid/TP40009523-CH5-SW11)
* *future workaround:* enable the equalizer, make it all-zero, and set a negative boost to reduce the volume
* "future" because `AudioContext` can't maintain a stable playback speed in the current iOS version (15.7), maybe one day...
* `AudioContext` will probably never be a viable workaround as apple introduces new issues faster than they fix current ones
* Windows: folders cannot be accessed if the name ends with `.`
* python or windows bug
@ -721,6 +720,8 @@ can also boost the volume in general, or increase/decrease stereo width (like [c
has the convenient side-effect of reducing the pause between songs, so gapless albums play better with the eq enabled (just make it flat)
not available on iPhones / iPads because AudioContext currently breaks background audio playback on iOS (15.7.8)
### fix unreliable playback on android

3
copyparty/web/browser.js
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@ -1299,7 +1299,8 @@ function set_files_html(html) {
}
var ACtx = window.AudioContext || window.webkitAudioContext,
// actx breaks background album playback on ios
var ACtx = !IPHONE && (window.AudioContext || window.webkitAudioContext),
noih = /[?&]v\b/.exec('' + location),
hash0 = location.hash,
mp;