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[Threading] Queue expensive actions outside audio 

Use delayed dispatching on expensive operations which occur every time
the "heard" track end happens, and when audio metadata is changed by a
stream, so that they are inserted into the main thread queue after the
invoking callback returns control execution back to the audio thread.

Signed-off-by: Christopher Snowhill <kode54@gmail.com>
swiftingly
Christopher Snowhill 2022-05-30 23:59:42 -07:00
parent 4a0b337936
commit eaa73bc52f
1 changed files with 13 additions and 7 deletions
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20
Application/PlaybackController.m
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@ -580,16 +580,19 @@ NSDictionary *makeRGInfo(PlaylistEntry *pe) {
- (void)audioPlayer:(AudioPlayer *)player didBeginStream:(id)userInfo {
PlaylistEntry *pe = (PlaylistEntry *)userInfo;
[playlistController setCurrentEntry:pe];
// Delay the action until this function has returned to the audio thread
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 5 * NSEC_PER_MSEC), dispatch_get_main_queue(), ^{
[self->playlistController setCurrentEntry:pe];
if(_eq)
equalizerApplyGenre(_eq, [pe genre]);
if(self->_eq)
equalizerApplyGenre(self->_eq, [pe genre]);
lastPosition = -10;
self->lastPosition = -10;
[self setPosition:0];
[self setPosition:0];
[self removeHDCD:nil];
[self removeHDCD:nil];
});
[[NSNotificationCenter defaultCenter] postNotificationName:CogPlaybackDidBeginNotficiation object:pe];
}
@ -677,7 +680,10 @@ NSDictionary *makeRGInfo(PlaylistEntry *pe) {
if (!pe) pe = [playlistController currentEntry];
[pe setMetadata:info];
[playlistView refreshCurrentTrack:self];
[self sendMetaData];
// Delay the action until this function has returned to the audio thread
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 5 * NSEC_PER_MSEC), dispatch_get_main_queue(), ^{
[self sendMetaData];
});
[[NSNotificationCenter defaultCenter] postNotificationName:CogPlaybackDidBeginNotficiation object:pe];
}