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audiounit: update device latency when the route changes

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This commit fixes airplay delay that may not be updated.
This commit is contained in:
Thomas Guillem 2019-07-17 15:56:03 +02:00
parent 44d007a9bb
commit b46f49a81c
3 changed files with 19 additions and 0 deletions
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8
modules/audio_output/audiounit_ios.m
View File

@ -154,6 +154,7 @@ enum port_type
- (void)audioSessionRouteChange:(NSNotification *)notification
{
audio_output_t *p_aout = [self aout];
struct aout_sys_t *p_sys = p_aout->sys;
NSDictionary *userInfo = notification.userInfo;
NSInteger routeChangeReason =
[[userInfo valueForKey:AVAudioSessionRouteChangeReasonKey] integerValue];
@ -163,6 +164,13 @@ enum port_type
if (routeChangeReason == AVAudioSessionRouteChangeReasonNewDeviceAvailable
|| routeChangeReason == AVAudioSessionRouteChangeReasonOldDeviceUnavailable)
aout_RestartRequest(p_aout, AOUT_RESTART_OUTPUT);
else
{
const vlc_tick_t latency_us =
vlc_tick_from_sec([p_sys->avInstance outputLatency]);
ca_SetDeviceLatency(p_aout, latency_us);
msg_Dbg(p_aout, "Current device has a new latency of %lld us", latency_us);
}
}
- (void)handleInterruption:(NSNotification *)notification

9
modules/audio_output/coreaudio_common.c
View File

@ -411,6 +411,15 @@ ca_SetAliveState(audio_output_t *p_aout, bool alive)
vlc_sem_post(&p_sys->flush_sem);
}
void ca_SetDeviceLatency(audio_output_t *p_aout, vlc_tick_t i_dev_latency_us)
{
struct aout_sys_common *p_sys = (struct aout_sys_common *) p_aout->sys;
lock_lock(p_sys);
p_sys->i_dev_latency_us = i_dev_latency_us;
lock_unlock(p_sys);
}
AudioUnit
au_NewOutputInstance(audio_output_t *p_aout, OSType comp_sub_type)
{

2
modules/audio_output/coreaudio_common.h
View File

@ -103,6 +103,8 @@ void ca_Uninitialize(audio_output_t *p_aout);
void ca_SetAliveState(audio_output_t *p_aout, bool alive);
void ca_SetDeviceLatency(audio_output_t *p_aout, vlc_tick_t i_dev_latency_us);
AudioUnit au_NewOutputInstance(audio_output_t *p_aout, OSType comp_sub_type);
int au_Initialize(audio_output_t *p_aout, AudioUnit au,