jiti-meet/ios/app/AudioMode.m

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#import "RCTBridgeModule.h"
#import "RCTLog.h"
#import <AVFoundation/AVFoundation.h>
@interface AudioMode : NSObject<RCTBridgeModule>
@end
@implementation AudioMode {
NSString *_category;
NSString *_mode;
}
RCT_EXPORT_MODULE();
typedef enum {
kAudioModeDefault,
kAudioModeAudioCall,
kAudioModeVideoCall
} JitsiMeetAudioMode;
- (NSDictionary *)constantsToExport {
return @{
@"AUDIO_CALL" : [NSNumber numberWithInt: kAudioModeAudioCall],
@"DEFAULT" : [NSNumber numberWithInt: kAudioModeDefault],
@"VIDEO_CALL" : [NSNumber numberWithInt: kAudioModeVideoCall]
};
};
- (instancetype)init {
self = [super init];
if (self) {
_category = nil;
_mode = nil;
}
return self;
}
- (dispatch_queue_t)methodQueue {
// Make sure all our methods run in the main thread. The route change
// notification runs there so this will make sure it will only be fired
// after our changes have been applied (when we cause them, that is).
return dispatch_get_main_queue();
}
- (void)routeChanged:(NSNotification*)notification {
NSInteger reason
= [[notification.userInfo
valueForKey:AVAudioSessionRouteChangeReasonKey]
integerValue];
switch (reason) {
case AVAudioSessionRouteChangeReasonCategoryChange:
// The category has changed. Check if it's the one we want and adjust as
// needed.
[self setCategory:_category mode:_mode error:nil];
break;
default:
// Do nothing.
break;
}
}
- (BOOL)setCategory:(NSString *)category
mode:(NSString *)mode
error:(NSError * _Nullable *)outError {
AVAudioSession *session = [AVAudioSession sharedInstance];
if (session.category != category
&& ![session setCategory:category error:outError]) {
RCTLogError(@"Failed to (re)apply specified AVAudioSession category!");
return NO;
}
if (session.mode != mode && ![session setMode:mode error:outError]) {
RCTLogError(@"Failed to (re)apply specified AVAudioSession mode!");
return NO;
}
return YES;
}
RCT_EXPORT_METHOD(setMode:(int)mode
resolve:(RCTPromiseResolveBlock)resolve
reject:(RCTPromiseRejectBlock)reject) {
NSString *avCategory;
NSString *avMode;
NSError *error;
switch (mode) {
case kAudioModeAudioCall:
avCategory = AVAudioSessionCategoryPlayAndRecord;
avMode = AVAudioSessionModeVoiceChat;
break;
case kAudioModeDefault:
avCategory = AVAudioSessionCategorySoloAmbient;
avMode = AVAudioSessionModeDefault;
break;
case kAudioModeVideoCall:
avCategory = AVAudioSessionCategoryPlayAndRecord;
avMode = AVAudioSessionModeVideoChat;
break;
default:
reject(@"setMode", @"Invalid mode", nil);
return;
}
if (![self setCategory:avCategory mode:avMode error:&error] || error) {
reject(@"setMode", error.localizedDescription, error);
return;
}
// Even though the specified category and mode were successfully set, the
// AVAudioSession is a singleton and other parts of the application such as
// WebRTC may undo the settings. Make sure that the settings are reapplied
// upon undoes.
if (!_category || !_mode) {
[[NSNotificationCenter defaultCenter]
addObserver:self
selector:@selector(routeChanged:)
name:AVAudioSessionRouteChangeNotification
object:nil];
}
// Save the desired/specified category and mode so that they may be
// reapplied (upon undoes as described above).
_category = avCategory;
_mode = avMode;
resolve(nil);
}
@end