I'm trying to expose my native shazamkit code to the host react native app.
The implementation works fine in a separate swift project but it fails when I try to integrate it into a React Native app.
Exception 'required condition is false: IsFormatSampleRateAndChannelCountValid(format)' was thrown while invoking exposed on target ShazamIOS with params (
1682,
1683
)
callstack: (
0 CoreFoundation 0x00007ff80049b761 __exceptionPreprocess + 242
1 libobjc.A.dylib 0x00007ff800063904 objc_exception_throw + 48
2 CoreFoundation 0x00007ff80049b56b +[NSException raise:format:] + 0
3 AVFAudio 0x00007ff846197929 _Z19AVAE_RaiseExceptionP8NSStringz + 156
4 AVFAudio 0x00007ff8461f2e90 _ZN17AUGraphNodeBaseV318CreateRecordingTapEmjP13AVAudioFormatU13block_pointerFvP16AVAudioPCMBufferP11AVAudioTimeE + 766
5 AVFAudio 0x00007ff84625f703 -[AVAudioNode installTapOnBus:bufferSize:format:block:] + 1456
6 muse 0x000000010a313dd0 $s4muse9ShazamIOSC6record33_35CC2309E4CA22278DC49D01D96C376ALLyyF + 496
7 muse 0x000000010a313210 $s4muse9ShazamIOSC5startyyF + 288
8 muse 0x000000010a312d03 $s4muse9ShazamIOSC7exposed_6rejectyyypSgXE_ySSSg_AGs5Error_pSgtXEtF + 83
9 muse 0x000000010a312e47 $s4muse9ShazamIOSC7exposed_6rejectyyypSgXE_ySSSg_AGs5Error_pSgtXEtFTo + 103
10 CoreFoundation 0x00007ff8004a238c __invoking___ + 140
11 CoreFoundation 0x00007ff80049f6b3 -[NSInvocation invoke] + 302
12 CoreFoundation 0x00007ff80049f923 -[NSInvocation invokeWithTarget:] + 70
13 muse 0x000000010a9210ef -[RCTModuleMethod invokeWithBridge:module:arguments:] + 2495
14 muse 0x000000010a925cb4 _ZN8facebook5reactL11invokeInnerEP9RCTBridgeP13RCTModuleDatajRKN5folly7dynamicEiN12_GLOBAL__N_117SchedulingContextE + 2036
15 muse 0x000000010a925305 _ZZN8facebook5react15RCTNativeModule6invokeEjON5folly7dynamicEiENK3$_0clEv + 133
16 muse 0x000000010a925279 ___ZN8facebook5react15RCTNativeModule6invokeEjON5folly7dynamicEi_block_invoke + 25
17 libdispatch.dylib 0x000000010e577747 _dispatch_call_block_and_release + 12
18 libdispatch.dylib 0x000000010e5789f7 _dispatch_client_callout + 8
19 libdispatch.dylib 0x000000010e5808c9 _dispatch_lane_serial_drain + 1127
20 libdispatch.dylib 0x000000010e581665 _dispatch_lane_invoke + 441
21 libdispatch.dylib 0x000000010e58e76e _dispatch_root_queue_drain_deferred_wlh + 318
22 libdispatch.dylib 0x000000010e58db69 _dispatch_workloop_worker_thread + 590
23 libsystem_pthread.dylib 0x000000010da67b84 _pthread_wqthread + 327
24 libsystem_pthread.dylib 0x000000010da66acf start_wqthread + 15
)
RCTFatal
facebook::react::invokeInner(RCTBridge*, RCTModuleData*, unsigned int, folly::dynamic const&, int, (anonymous namespace)::SchedulingContext)
facebook::react::RCTNativeModule::invoke(unsigned int, folly::dynamic&&, int)::$_0::operator()() const
invocation function for block in facebook::react::RCTNativeModule::invoke(unsigned int, folly::dynamic&&, int)
This is my swift file, error happens in the record function.
import Foundation
import ShazamKit
@objc(ShazamIOS)
class ShazamIOS : NSObject {
@Published var matching: Bool = false
@Published var mediaItem: SHMatchedMediaItem?
@Published var error: Error? {
didSet {
hasError = error != nil
}
}
@Published var hasError: Bool = false
private lazy var audioSession: AVAudioSession = .sharedInstance()
private lazy var session: SHSession = .init()
private lazy var audioEngine: AVAudioEngine = .init()
private lazy var inputNode = self.audioEngine.inputNode
private lazy var bus: AVAudioNodeBus = 0
override init() {
super.init()
session.delegate = self
}
@objc
func exposed(_ resolve:RCTPromiseResolveBlock, reject:RCTPromiseRejectBlock){
start()
resolve("ios code executed")
}
func start() {
switch audioSession.recordPermission {
case .granted:
self.record()
case .denied:
DispatchQueue.main.async {
self.error = ShazamError.recordDenied
}
case .undetermined:
audioSession.requestRecordPermission { granted in
DispatchQueue.main.async {
if granted {
self.record()
}
else {
self.error = ShazamError.recordDenied
}
}
}
@unknown default:
DispatchQueue.main.async {
self.error = ShazamError.unknown
}
}
}
private func record() {
do {
self.matching = true
let format = self.inputNode.outputFormat(forBus: bus)
self.inputNode.installTap(onBus: bus, bufferSize: 8192, format: format) { [weak self] (buffer, time) in
self?.session.matchStreamingBuffer(buffer, at: time)
}
self.audioEngine.prepare()
try self.audioEngine.start()
}
catch {
self.error = error
}
}
func stop() {
self.audioEngine.stop()
self.inputNode.removeTap(onBus: bus)
self.matching = false
}
@objc
static func requiresMainQueueSetup() -> Bool {
return true;
}
}
extension ShazamIOS: SHSessionDelegate {
func session(_ session: SHSession, didFind match: SHMatch) {
DispatchQueue.main.async { [self] in
if let mediaItem = match.mediaItems.first {
self.mediaItem = mediaItem
self.stop()
}
}
}
func session(_ session: SHSession, didNotFindMatchFor signature: SHSignature, error: Error?) {
DispatchQueue.main.async {[self] in
self.error = error
self.stop()
}
}
}
objC file
#import <Foundation/Foundation.h>
#import "React/RCTBridgeModule.h"
@interface RCT_EXTERN_MODULE(ShazamIOS, NSObject);
RCT_EXTERN_METHOD(exposed:(RCTPromiseResolveBlock)resolve reject:(RCTPromiseRejectBlock)reject)
@end
how I consume the exposed function in RN.
const {ShazamModule, ShazamIOS} = NativeModules;
const onPressIOSButton = () => {
ShazamIOS.exposed().then(result => console.log(result)).catch(e => console.log(e.message, e.code));
};
Cristobalb
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