dnrops
/
HaishinKit.swift
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

refs #58, Update README

This commit is contained in:
shogo4405 2020-01-18 20:20:43 +09:00
parent 04ede35edc
commit 45b64b58e6
10 changed files with 163 additions and 108 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
Examples/iOS/AppDelegate.swift
View File

@ -13,16 +13,19 @@ final class AppDelegate: UIResponder, UIApplicationDelegate {
// Logboard.with(HaishinKitIdentifier).level = .trace
let session = AVAudioSession.sharedInstance()
do {
try session.setPreferredSampleRate(44_100)
// https://stackoverflow.com/questions/51010390/avaudiosession-setcategory-swift-4-2-ios-12-play-sound-on-silent
if #available(iOS 10.0, *) {
try session.setCategory(.playAndRecord, mode: .default, options: [.defaultToSpeaker, .allowBluetooth])
} else {
session.perform(NSSelectorFromString("setCategory:withOptions:error:"), with: AVAudioSession.Category.playAndRecord, with: [AVAudioSession.CategoryOptions.allowBluetooth])
try? session.setMode(.default)
session.perform(NSSelectorFromString("setCategory:withOptions:error:"), with: AVAudioSession.Category.playAndRecord, with: [
AVAudioSession.CategoryOptions.allowBluetooth,
AVAudioSession.CategoryOptions.defaultToSpeaker]
)
try session.setMode(.default)
}
try session.setActive(true)
} catch {
logger.error(error)
}
return true
}

5
Examples/iOS/LiveViewController.swift
View File

@ -4,8 +4,6 @@ import Photos
import UIKit
import VideoToolbox
let sampleRate: Double = 44_100
final class ExampleRecorderDelegate: DefaultAVRecorderDelegate {
static let `default` = ExampleRecorderDelegate()
@ -62,9 +60,6 @@ final class LiveViewController: UIViewController {
.width: 720,
.height: 1280
]
rtmpStream.audioSettings = [
.sampleRate: sampleRate
]
rtmpStream.mixer.recorder.delegate = ExampleRecorderDelegate.shared
videoBitrateSlider?.value = Float(RTMPStream.defaultVideoBitrate) / 1024

2
Examples/iOS/Preference.swift
View File

@ -1,6 +1,6 @@
struct Preference {
static var defaultInstance = Preference()
var uri: String? = "rtmp://192.168.1.4/live"
var uri: String? = "rtmp://192.168.1.8/live"
var streamName: String? = "live"
}

11
Examples/iOS/Screencast/SampleHandler.swift
View File

@ -15,15 +15,8 @@ open class SampleHandler: RPBroadcastSampleHandler {
logger.level = .debug
logger.appender = socket
*/
print("broadcastStarted")
super.broadcastStarted(withSetupInfo: setupInfo)
guard
let endpointURL: String = setupInfo?["endpointURL"] as? String,
let streamName: String = setupInfo?["streamName"] as? String else {
return
}
broadcaster.streamName = streamName
broadcaster.connect(endpointURL, arguments: nil)
broadcaster.streamName = Preference.defaultInstance.streamName
broadcaster.connect(Preference.defaultInstance.uri, arguments: nil)
}
override open func processSampleBuffer(_ sampleBuffer: CMSampleBuffer, with sampleBufferType: RPSampleBufferType) {

6
Examples/macOS/MainViewController.swift
View File

@ -40,8 +40,8 @@ final class MainViewController: NSViewController {
override func viewWillAppear() {
super.viewWillAppear()
//rtmpStream.attachAudio(DeviceUtil.device(withLocalizedName: audioPopUpButton.titleOfSelectedItem!, mediaType: .audio))
//rtmpStream.attachCamera(DeviceUtil.device(withLocalizedName: cameraPopUpButton.titleOfSelectedItem!, mediaType: .video))
rtmpStream.attachAudio(DeviceUtil.device(withLocalizedName: audioPopUpButton.titleOfSelectedItem!, mediaType: .audio))
rtmpStream.attachCamera(DeviceUtil.device(withLocalizedName: cameraPopUpButton.titleOfSelectedItem!, mediaType: .video))
lfView?.attachStream(rtmpStream)
}
@ -155,7 +155,7 @@ final class MainViewController: NSViewController {
}
switch code {
case RTMPConnection.Code.connectSuccess.rawValue:
rtmpStream!.play(Preference.defaultInstance.streamName)
rtmpStream!.publish(Preference.defaultInstance.streamName)
default:
break
}

10
HaishinKit.xcodeproj/project.pbxproj
View File

@ -354,6 +354,10 @@
29FD1B5422FF1C2D0095A0BE /* VTCompressionSessionPropertyKey.swift in Sources */ = {isa = PBXBuildFile; fileRef = 29FD1B5322FF1C2D0095A0BE /* VTCompressionSessionPropertyKey.swift */; };
29FD1B5522FF1C2D0095A0BE /* VTCompressionSessionPropertyKey.swift in Sources */ = {isa = PBXBuildFile; fileRef = 29FD1B5322FF1C2D0095A0BE /* VTCompressionSessionPropertyKey.swift */; };
29FD1B5622FF1C2D0095A0BE /* VTCompressionSessionPropertyKey.swift in Sources */ = {isa = PBXBuildFile; fileRef = 29FD1B5322FF1C2D0095A0BE /* VTCompressionSessionPropertyKey.swift */; };
BC44A1A923D31E92002D4297 /* AudioBuffer.swift in Sources */ = {isa = PBXBuildFile; fileRef = BC44A1A823D31E92002D4297 /* AudioBuffer.swift */; };
BC44A1AA23D31E92002D4297 /* AudioBuffer.swift in Sources */ = {isa = PBXBuildFile; fileRef = BC44A1A823D31E92002D4297 /* AudioBuffer.swift */; };
BC44A1AB23D31E92002D4297 /* AudioBuffer.swift in Sources */ = {isa = PBXBuildFile; fileRef = BC44A1A823D31E92002D4297 /* AudioBuffer.swift */; };
BC4C9EAC23F00F3A004A14F2 /* Preference.swift in Sources */ = {isa = PBXBuildFile; fileRef = 291468161E581C7D00E619BA /* Preference.swift */; };
BC9CFA9323BDE8B700917EEF /* NetStreamRenderer.swift in Sources */ = {isa = PBXBuildFile; fileRef = BC9CFA9223BDE8B700917EEF /* NetStreamRenderer.swift */; };
BC9CFA9423BDE8B700917EEF /* NetStreamRenderer.swift in Sources */ = {isa = PBXBuildFile; fileRef = BC9CFA9223BDE8B700917EEF /* NetStreamRenderer.swift */; };
BC9CFA9523BDE8B700917EEF /* NetStreamRenderer.swift in Sources */ = {isa = PBXBuildFile; fileRef = BC9CFA9223BDE8B700917EEF /* NetStreamRenderer.swift */; };
@ -645,6 +649,7 @@
29F97F232336A4FA00A4C317 /* SettingTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SettingTests.swift; sourceTree = "<group>"; };
29FD1B4F22FF13190095A0BE /* VTSessionPropertyKey.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = VTSessionPropertyKey.swift; sourceTree = "<group>"; };
29FD1B5322FF1C2D0095A0BE /* VTCompressionSessionPropertyKey.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = VTCompressionSessionPropertyKey.swift; sourceTree = "<group>"; };
BC44A1A823D31E92002D4297 /* AudioBuffer.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AudioBuffer.swift; sourceTree = "<group>"; };
BC9CFA9223BDE8B700917EEF /* NetStreamRenderer.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NetStreamRenderer.swift; sourceTree = "<group>"; };
/* End PBXFileReference section */
@ -747,6 +752,7 @@
children = (
298BCF321DD4C44A007FF86A /* AnyUtil.swift */,
29DC17B221D0CC0600E26CED /* Atomic.swift */,
BC44A1A823D31E92002D4297 /* AudioBuffer.swift */,
29B876B81CD70B3900FC07DA /* ByteArray.swift */,
294B2D3123785E3800CE7BDC /* CircularBuffer.swift */,
29B876631CD70AB300FC07DA /* Constants.swift */,
@ -1593,6 +1599,7 @@
buildActionMask = 2147483647;
files = (
2930D0411E12D35400DA2DC5 /* SampleHandler.swift in Sources */,
BC4C9EAC23F00F3A004A14F2 /* Preference.swift in Sources */,
2957473E1E34F3DB00EF056E /* RTMPBroadcaster.swift in Sources */,
);
runOnlyForDeploymentPostprocessing = 0;
@ -1626,6 +1633,7 @@
294B2D3223785E3800CE7BDC /* CircularBuffer.swift in Sources */,
2958910E1EEB8D3C00CE51E1 /* FLVVideoCodec.swift in Sources */,
299B13271D3B751400A1E8F5 /* HKView.swift in Sources */,
BC44A1A923D31E92002D4297 /* AudioBuffer.swift in Sources */,
2926A9EC1DE6B71E0074E3D2 /* MachUtil.swift in Sources */,
29B876AF1CD70B2800FC07DA /* RTMPChunk.swift in Sources */,
29D3D4CF1ED04C4C00DD4AA6 /* VideoIOComponent+Extension.swift in Sources */,
@ -1788,6 +1796,7 @@
2992D1541ED04A2C008D9DC1 /* VideoIOComponent+Extension-macOS.swift in Sources */,
2926A9EF1DE6B83F0074E3D2 /* MachUtil.swift in Sources */,
2976A47F1D48FD6900B53EF2 /* AVRecorder.swift in Sources */,
BC44A1AA23D31E92002D4297 /* AudioBuffer.swift in Sources */,
29B877071CD70D5A00FC07DA /* SoundTransform.swift in Sources */,
29B877081CD70D5A00FC07DA /* VideoIOComponent.swift in Sources */,
294CC9B422D9BEC000F9DD5C /* DisplayLink-macOS.swift in Sources */,
@ -1881,6 +1890,7 @@
29EB3DF01ED05768001CAE8B /* H264Encoder.swift in Sources */,
29EB3E351ED05A33001CAE8B /* DeviceUtil.swift in Sources */,
29DC17B521D0CC0600E26CED /* Atomic.swift in Sources */,
BC44A1AB23D31E92002D4297 /* AudioBuffer.swift in Sources */,
29EB3E261ED05A07001CAE8B /* RTMPStream.swift in Sources */,
29DF20642312A3DD004057C3 /* RTMPNWSocket.swift in Sources */,
29EB3E111ED05881001CAE8B /* IOComponent.swift in Sources */,

28
README.md
View File

@ -104,16 +104,19 @@ Make sure you setup and activate your AVAudioSession.
import AVFoundation
let session = AVAudioSession.sharedInstance()
do {
try session.setPreferredSampleRate(44_100)
// https://stackoverflow.com/questions/51010390/avaudiosession-setcategory-swift-4-2-ios-12-play-sound-on-silent
if #available(iOS 10.0, *) {
try session.setCategory(.playAndRecord, mode: .default, options: [.defaultToSpeaker, .allowBluetooth])
} else {
session.perform(NSSelectorFromString("setCategory:withOptions:error:"), with: AVAudioSession.Category.playAndRecord, with: [AVAudioSession.CategoryOptions.allowBluetooth])
session.perform(NSSelectorFromString("setCategory:withOptions:error:"), with: AVAudioSession.Category.playAndRecord, with: [
AVAudioSession.CategoryOptions.allowBluetooth,
AVAudioSession.CategoryOptions.defaultToSpeaker]
)
try session.setMode(.default)
}
try session.setMode(AVAudioSessionModeDefault)
try session.setActive(true)
} catch {
print(error)
}
```
## RTMP Usage
@ -143,24 +146,6 @@ rtmpStream.publish("streamName")
### Settings
```swift
let sampleRate:Double = 44_100
// see: #58
#if(iOS)
let session = AVAudioSession.sharedInstance()
do {
try session.setPreferredSampleRate(44_100)
// https://stackoverflow.com/questions/51010390/avaudiosession-setcategory-swift-4-2-ios-12-play-sound-on-silent
if #available(iOS 10.0, *) {
try session.setCategory(.playAndRecord, mode: .default, options: [.allowBluetooth])
} else {
session.perform(NSSelectorFromString("setCategory:withOptions:error:"), with: AVAudioSession.Category.playAndRecord, with: [AVAudioSession.CategoryOptions.allowBluetooth])
}
try session.setActive(true)
} catch {
}
#endif
var rtmpStream = RTMPStream(connection: rtmpConnection)
rtmpStream.captureSettings = [
@ -173,7 +158,6 @@ rtmpStream.captureSettings = [
rtmpStream.audioSettings = [
.muted: false, // mute audio
.bitrate: 32 * 1000,
.sampleRate: sampleRate,
]
rtmpStream.videoSettings = [
.width: 640, // video output width

108
Sources/Codec/AudioConverter.swift
View File

@ -42,7 +42,6 @@ public class AudioConverter {
/// 0 means according to a input source
public static let defaultSampleRate: Double = 0
public static let defaultMaximumBuffers: Int = 1
public static let defaultBufferListSize: Int = AudioBufferList.sizeInBytes(maximumBuffers: 1)
public var destination: Destination = .aac
public weak var delegate: AudioConverterDelegate?
@ -52,6 +51,7 @@ public class AudioConverter {
settings.observer = self
}
}
private static let numSamples: Int = 1024
var muted: Bool = false
var bitrate: UInt32 = AudioConverter.defaultBitrate {
@ -83,30 +83,19 @@ public class AudioConverter {
var lockQueue = DispatchQueue(label: "com.haishinkit.HaishinKit.AudioConverter.lock")
var inSourceFormat: AudioStreamBasicDescription? {
didSet {
logger.info("\(String(describing: self.inSourceFormat))")
guard let inSourceFormat: AudioStreamBasicDescription = self.inSourceFormat else {
guard let inSourceFormat = inSourceFormat else {
return
}
let nonInterleaved: Bool = inSourceFormat.mFormatFlags & kAudioFormatFlagIsNonInterleaved != 0
logger.info("\(String(describing: self.inSourceFormat))")
let nonInterleaved = inSourceFormat.mFormatFlags & kAudioFormatFlagIsNonInterleaved != 0
maximumBuffers = nonInterleaved ? Int(inSourceFormat.mChannelsPerFrame) : AudioConverter.defaultMaximumBuffers
bufferListSize = nonInterleaved ? AudioBufferList.sizeInBytes(maximumBuffers: maximumBuffers) : AudioConverter.defaultBufferListSize
currentAudioBuffer = AudioBuffer(inSourceFormat, numSamples: AudioConverter.numSamples)
}
}
var effects: Set<AudioEffect> = []
private var maximumBuffers: Int = AudioConverter.defaultMaximumBuffers {
didSet {
guard oldValue != maximumBuffers else {
return
}
currentBufferList.unsafeMutablePointer.deallocate()
currentBufferList = AudioBufferList.allocate(maximumBuffers: maximumBuffers)
}
}
private var filled = false
private var bufferListSize: Int = AudioConverter.defaultBufferListSize
private lazy var currentBufferList: UnsafeMutableAudioBufferListPointer = {
AudioBufferList.allocate(maximumBuffers: maximumBuffers)
}()
private let numSamples = AudioConverter.numSamples
private var maximumBuffers: Int = AudioConverter.defaultMaximumBuffers
private var currentAudioBuffer = AudioBuffer(AudioStreamBasicDescription(mSampleRate: 0, mFormatID: 0, mFormatFlags: 0, mBytesPerPacket: 0, mFramesPerPacket: 0, mBytesPerFrame: 0, mChannelsPerFrame: 1, mBitsPerChannel: 0, mReserved: 0))
private var _inDestinationFormat: AudioStreamBasicDescription?
private var inDestinationFormat: AudioStreamBasicDescription {
get {
@ -154,10 +143,6 @@ public class AudioConverter {
settings.observer = self
}
deinit {
currentBufferList.unsafeMutablePointer.deallocate()
}
private var _converter: AudioConverterRef?
private var converter: AudioConverterRef {
var status: OSStatus = noErr
@ -179,14 +164,19 @@ public class AudioConverter {
}
public func encodeBytes(_ bytes: UnsafeMutableRawPointer?, count: Int, presentationTimeStamp: CMTime) {
currentBufferList.unsafeMutablePointer.pointee.mBuffers.mNumberChannels = 1
currentBufferList.unsafeMutablePointer.pointee.mBuffers.mData = bytes
currentBufferList.unsafeMutablePointer.pointee.mBuffers.mDataByteSize = UInt32(count)
convert(Int(1024 * destination.bytesPerFrame), presentationTimeStamp: presentationTimeStamp)
guard isRunning.value else {
currentAudioBuffer.clear()
return
}
currentAudioBuffer.input.unsafeMutablePointer.pointee.mBuffers.mNumberChannels = 1
currentAudioBuffer.input.unsafeMutablePointer.pointee.mBuffers.mData = bytes
currentAudioBuffer.input.unsafeMutablePointer.pointee.mBuffers.mDataByteSize = UInt32(count)
convert(numSamples * Int(destination.bytesPerFrame), presentationTimeStamp: presentationTimeStamp)
}
public func encodeSampleBuffer(_ sampleBuffer: CMSampleBuffer) {
guard let format: CMAudioFormatDescription = sampleBuffer.formatDescription, isRunning.value else {
public func encodeSampleBuffer(_ sampleBuffer: CMSampleBuffer, offset: Int = 0) {
guard let format = sampleBuffer.formatDescription, sampleBuffer.isValid && isRunning.value else {
currentAudioBuffer.clear()
return
}
@ -194,42 +184,28 @@ public class AudioConverter {
inSourceFormat = format.streamBasicDescription?.pointee
}
var blockBuffer: CMBlockBuffer?
CMSampleBufferGetAudioBufferListWithRetainedBlockBuffer(
sampleBuffer,
bufferListSizeNeededOut: nil,
bufferListOut: currentBufferList.unsafeMutablePointer,
bufferListSize: bufferListSize,
blockBufferAllocator: kCFAllocatorDefault,
blockBufferMemoryAllocator: kCFAllocatorDefault,
flags: 0,
blockBufferOut: &blockBuffer
)
if blockBuffer == nil {
logger.warn("IllegalState for blockBuffer")
return
}
if !effects.isEmpty {
for effect in effects {
effect.execute(currentBufferList, format: inSourceFormat)
do {
let numSamples = try currentAudioBuffer.write(sampleBuffer, offset: offset)
if currentAudioBuffer.isReady {
for effect in effects {
effect.execute(currentAudioBuffer.input, format: inSourceFormat)
}
if muted {
currentAudioBuffer.muted()
}
convert(currentAudioBuffer.maxLength, presentationTimeStamp: currentAudioBuffer.presentationTimeStamp)
}
}
if muted {
for i in 0..<currentBufferList.count {
memset(currentBufferList[i].mData, 0, Int(currentBufferList[i].mDataByteSize))
if numSamples < sampleBuffer.numSamples {
encodeSampleBuffer(sampleBuffer, offset: numSamples)
}
} catch {
logger.error(error)
}
convert(blockBuffer!.dataLength, presentationTimeStamp: sampleBuffer.presentationTimeStamp)
}
@inline(__always)
private func convert(_ dataBytesSize: Int, presentationTimeStamp: CMTime) {
filled = false
var finished: Bool = false
var finished = false
repeat {
var ioOutputDataPacketSize: UInt32 = destination.packetSize
@ -241,7 +217,7 @@ public class AudioConverter {
outOutputData[i].mData = UnsafeMutableRawPointer.allocate(byteCount: dataBytesSize, alignment: 0)
}
let status: OSStatus = AudioConverterFillComplexBuffer(
let status = AudioConverterFillComplexBuffer(
converter,
inputDataProc,
Unmanaged.passUnretained(self).toOpaque(),
@ -251,8 +227,9 @@ public class AudioConverter {
)
switch status {
// kAudioConverterErr_InvalidInputSize: perhaps mistake. but can support macOS BuiltIn Mic #61
case noErr, kAudioConverterErr_InvalidInputSize:
// kAudioConverterErr_InvalidInputSize: perhaps mistake. but can support macOS BuiltIn Mic #61
case noErr,
kAudioConverterErr_InvalidInputSize:
delegate?.sampleOutput(
audio: outOutputData,
presentationTimeStamp: presentationTimeStamp
@ -292,19 +269,20 @@ public class AudioConverter {
_ ioNumberDataPackets: UnsafeMutablePointer<UInt32>,
ioData: UnsafeMutablePointer<AudioBufferList>,
outDataPacketDescription: UnsafeMutablePointer<UnsafeMutablePointer<AudioStreamPacketDescription>?>?) -> OSStatus {
guard !filled else {
guard currentAudioBuffer.isReady else {
ioNumberDataPackets.pointee = 0
return -1
}
memcpy(ioData, currentBufferList.unsafePointer, bufferListSize)
memcpy(ioData, currentAudioBuffer.input.unsafePointer, currentAudioBuffer.listSize)
ioNumberDataPackets.pointee = 1
if destination == .pcm && outDataPacketDescription != nil {
audioStreamPacketDescription.mDataByteSize = currentBufferList.unsafePointer.pointee.mBuffers.mDataByteSize
audioStreamPacketDescription.mDataByteSize = currentAudioBuffer.input.unsafePointer.pointee.mBuffers.mDataByteSize
outDataPacketDescription?.pointee = audioStreamPacketDescriptionPointer
}
filled = true
currentAudioBuffer.clear()
return noErr
}

7
Sources/Extension/CMSampleBuffer+Extension.swift
View File

@ -10,6 +10,13 @@ extension CMSampleBuffer {
}
}
@available(iOS, obsoleted: 13.0)
@available(tvOS, obsoleted: 13.0)
@available(macOS, obsoleted: 10.15)
var isValid: Bool {
CMSampleBufferIsValid(self)
}
@available(iOS, obsoleted: 13.0)
@available(tvOS, obsoleted: 13.0)
@available(macOS, obsoleted: 10.15)

85
Sources/Util/AudioBuffer.swift Normal file
View File

@ -0,0 +1,85 @@
import AVFoundation
import Foundation
final class AudioBuffer {
enum AudioBufferError: Error {
case notReady
}
static let numSamples = 1024
let input: UnsafeMutableAudioBufferListPointer
var isReady: Bool {
numSamples == index
}
var maxLength: Int {
numSamples * bytesPerFrame
}
let listSize: Int
private var index = 0
private var buffers: [Data]
private let numSamples: Int
private let bytesPerFrame: Int
private let maximumBuffers: Int
private(set) var presentationTimeStamp: CMTime = .invalid
deinit {
input.unsafeMutablePointer.deallocate()
}
init(_ inSourceFormat: AudioStreamBasicDescription, numSamples: Int = AudioBuffer.numSamples) {
let nonInterleaved = inSourceFormat.mFormatFlags & kAudioFormatFlagIsNonInterleaved != 0
self.numSamples = nonInterleaved ? numSamples / 2 : numSamples
bytesPerFrame = Int(inSourceFormat.mBytesPerFrame)
maximumBuffers = nonInterleaved ? Int(inSourceFormat.mChannelsPerFrame) : 1
listSize = AudioBufferList.sizeInBytes(maximumBuffers: maximumBuffers)
buffers = .init(repeating: .init(repeating: 0, count: self.numSamples * bytesPerFrame), count: maximumBuffers)
input = AudioBufferList.allocate(maximumBuffers: maximumBuffers)
input.unsafeMutablePointer.pointee.mNumberBuffers = UInt32(maximumBuffers)
for i in 0..<maximumBuffers {
input[i].mNumberChannels = nonInterleaved ? 1 : inSourceFormat.mChannelsPerFrame
input[i].mDataByteSize = UInt32(buffers[i].count)
buffers[i].withUnsafeMutableBytes { pointer in
input[i].mData = pointer.baseAddress
}
}
}
func write(_ sampleBuffer: CMSampleBuffer, offset: Int) throws -> Int {
guard let data = sampleBuffer.dataBuffer?.data, !isReady else {
throw AudioBufferError.notReady
}
if presentationTimeStamp == .invalid {
let offsetTimeStamp: CMTime = offset == 0 ? .zero : CMTime(value: CMTimeValue(offset), timescale: sampleBuffer.presentationTimeStamp.timescale)
presentationTimeStamp = CMTimeAdd(sampleBuffer.presentationTimeStamp, offsetTimeStamp)
}
let numSamples = min(self.numSamples - index, sampleBuffer.numSamples - offset)
for i in 0..<maximumBuffers {
buffers[i].replaceSubrange(index * bytesPerFrame..<index * bytesPerFrame + numSamples * bytesPerFrame, with: data.advanced(by: offset * bytesPerFrame + numSamples * bytesPerFrame * i))
}
index += numSamples
return numSamples
}
func muted() {
for i in 0..<maximumBuffers {
buffers[i].resetBytes(in: 0...)
}
}
func clear() {
presentationTimeStamp = .invalid
index = 0
}
}
extension AudioBuffer: CustomDebugStringConvertible {
// MARK: CustomDebugStringConvertible
var debugDescription: String {
Mirror(reflecting: self).debugDescription
}
}