HaishinKit for iOS, macOS, tvOS, visionOS and Android.

• Camera and Microphone streaming library via RTMP and SRT for iOS, macOS, tvOS and visionOS.
• README.md contains unreleased content, which can be tested on the main branch.
• API Documentation

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💬 Communication

• If you need help with making LiveStreaming requests using HaishinKit, use a GitHub Discussions with Q&A.
• If you’d like to discuss a feature request, use a GitHub Discussions with Idea
• If you met a HaishinKit’s bug🐛, use a GitHub Issue with Bug report template
  • The trace level log is very useful. Please set LBLogger.with(HaishinKitIdentifier).level = .trace.
  • If you don’t use an issue template. I will immediately close the your issue without a comment.
• If you want to contribute, submit a pull request with a pr template.
• If you want to support e-mail based communication without GitHub.
  • Consulting fee is $50/1 incident. I’m able to response a few days.
• Discord chatroom.
• 日本語が分かる方は、日本語でのコミニケーションをお願いします！

💖 Sponsors

Sponsorship

🌏 Related projects

🎨 Features

RTMP

• [x] Authentication
• [x] Publish and Recording
• [x] Playback (Beta)
• [x] Adaptive bitrate streaming
• [ ] Action Message Format
  • [x] AMF0
  • [ ] AMF3
• [x] SharedObject
• [x] RTMPS
  • [x] Native (RTMP over SSL/TLS)
  • [x] Tunneled (RTMPT over SSL/TLS) (Technical Preview)
• [x] RTMPT (Technical Preview)
• [x] ReplayKit Live as a Broadcast Upload Extension
• [x] Enhanced RTMP

SRT(beta)

• [x] Publish and Recording (H264/AAC)
• [x] Playback(beta)
• [ ] mode
  • [x] caller
  • [ ] listener
  • [ ] rendezvous

Multi Camera

Supports two camera video sources. A picture-in-picture display that shows the image of the secondary camera of the primary camera. Supports camera split display that displays horizontally and vertically.

Picture-In-Picture	Split

// If you want to use the multi-camera feature, please make sure stream.isMultiCamSessionEnabled = true. Before attachCamera or attachAudio.
stream.isMultiCamSessionEnabled = true

let back = AVCaptureDevice.default(.builtInWideAngleCamera, for: .video, position: .back)
stream.attachCamera(back, channel: 0) { _, error in
  if let error {
    logger.warn(error)
  }
}

let front = AVCaptureDevice.default(.builtInWideAngleCamera, for: .video, position: .front)
stream.attachCamera(front, channel: 1) { videoUnit, error in
  videoUnit?.isVideoMirrored = true
  if let error {
    logger.error(error)
  }
}

Rendering

Others

• [x] tvOS 17.0 for AVCaptureSession.
• [x] Support multitasking camera access.
• [x] Support “Allow app extension API only” option

🐾 Examples

Examples project are available for iOS with UIKit, iOS with SwiftUI, macOS and tvOS. Example macOS requires Apple Silicon mac.

• [x] Camera and microphone publish.
• [x] Playback sh git clone https://github.com/shogo4405/HaishinKit.swift.git cd HaishinKit.swift carthage bootstrap --platform iOS,macOS,tvOS --use-xcframeworks open HaishinKit.xcodeproj

🌏 Requirements

Development

OS

Cocoa Keys

Please contains Info.plist.

iOS 10.0+

• NSMicrophoneUsageDescription
• NSCameraUsageDescription

macOS 10.14+

• NSMicrophoneUsageDescription
• NSCameraUsageDescription

tvOS 17.0+

• NSMicrophoneUsageDescription
• NSCameraUsageDescription

🔧 Installation

HaishinKit has a multi-module configuration. If you want to use the SRT protocol, please use SRTHaishinKit. SRTHaishinKit supports SPM only. | | HaishinKit | SRTHaishinKit | | - | :- | :- | | SPM | https://github.com/shogo4405/HaishinKit.swift | https://github.com/shogo4405/HaishinKit.swift | | CocoaPods | source ‘https://github.com/CocoaPods/Specs.git’
use_frameworks!

def import_pods
pod 'HaishinKit’, ‘~> 1.6.0
end

target 'Your Target’ do
platform :ios, ‘12.0’
import_pods
end
| Not supported. | | Carthage | github “shogo4405/HaishinKit.swift” ~> 1.6.0 | Not supported. |

🔧 Prerequisites

Make sure you setup and activate your AVAudioSession iOS.

import AVFoundation
let session = AVAudioSession.sharedInstance()
do {
    try session.setCategory(.playAndRecord, mode: .default, options: [.defaultToSpeaker, .allowBluetooth])
    try session.setActive(true)
} catch {
    print(error)
}

📓 RTMP Usage

Ingest

let connection = RTMPConnection()
let stream = RTMPStream(connection: connection)

stream.attachAudio(AVCaptureDevice.default(for: .audio)) { error in
  // print(error)
}

stream.attachCamera(AVCaptureDevice.default(.builtInWideAngleCamera, for: .video, position: .back), channel: 0) { _, error in
  if let error {
    logger.warn(error)
  }
}

let hkView = MTHKView(frame: view.bounds)
hkView.videoGravity = AVLayerVideoGravity.resizeAspectFill
hkView.attachStream(stream)

// add ViewController#view
view.addSubview(hkView)

connection.connect("rtmp://localhost/appName/instanceName")
stream.publish("streamName")

Playback

let connection = RTMPConnection()
let stream = RTMPStream(connection: connection)

let hkView = MTHKView(frame: view.bounds)
hkView.videoGravity = AVLayerVideoGravity.resizeAspectFill
hkView.attachStream(stream)

// add ViewController#view
view.addSubview(hkView)

connection.connect("rtmp://localhost/appName/instanceName")
stream.play("streamName")

Authentication

var connection = RTMPConnection()
connection.connect("rtmp://username:password@localhost/appName/instanceName")

📓 SRT Usage

Ingest

let connection = SRTConnection()
let stream = SRTStream(connection: connection)
stream.attachAudio(AVCaptureDevice.default(for: .audio)) { error in
    // print(error)
}
stream.attachCamera(AVCaptureDevice.default(.builtInWideAngleCamera, for: .video, position: .back), channel: 0) { _, error in
  if let error {
    logger.warn(error)
  }
}

let hkView = HKView(frame: view.bounds)
hkView.videoGravity = AVLayerVideoGravity.resizeAspectFill
hkView.attachStream(rtmpStream)

// add ViewController#view
view.addSubview(hkView)

connection.connect("srt://host:port?option=foo")
stream.publish()

Playback

let connection = SRTConnection()
let stream = SRTStream(connection: connection)

let hkView = MTHKView(frame: view.bounds)
hkView.videoGravity = AVLayerVideoGravity.resizeAspectFill
hkView.attachStream(rtmpStream)

// add ViewController#view
view.addSubview(hkView)

connection.connect("srt://host:port?option=foo")
stream.play()

📓 Settings

📹 Capture

stream.frameRate = 30
stream.sessionPreset = AVCaptureSession.Preset.medium

/// Specifies the video capture settings.
let front = AVCaptureDevice.default(.builtInWideAngleCamera, for: .video, position: .front)
stream.attachCamera(front, channel: 0) { videoUnit, error in
  videoUnit?.isVideoMirrored = true
  videoUnit?.preferredVideoStabilizationMode = .standard
  videoUnit?.colorFormat = kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange
}

🔊 AudioCodecSettings

When you specify the sampling rate, it will perform resampling. Additionally, in the case of multiple channels, downsampling can be applied.

stream.audioSettings = AudioCodecSettings(
  bitRate: Int = 64 * 1000,
  sampleRate: Float64 = 0,
  channels: UInt32 = 0,
  downmix: Bool = false,
  channelMap: [Int]? = nil
)

🎥 VideoCodecSettings

stream.videoSettings = VideoCodecSettings(
  videoSize: .init(width: 854, height: 480),
  profileLevel: kVTProfileLevel_H264_Baseline_3_1 as String,
  bitRate: 640 * 1000,
  maxKeyFrameIntervalDuration: 2,
  scalingMode: .trim,
  bitRateMode: .average,
  allowFrameReordering: nil,
  isHardwareEncoderEnabled: true
)

⏺️ Recording

// Specifies the recording settings. 0" means the same of input.
stream.startRecording(self, settings: [
  AVMediaType.audio: [
    AVFormatIDKey: Int(kAudioFormatMPEG4AAC),
    AVSampleRateKey: 0,
    AVNumberOfChannelsKey: 0,
    // AVEncoderBitRateKey: 128000,
  ],
  AVMediaType.video: [
    AVVideoCodecKey: AVVideoCodecH264,
    AVVideoHeightKey: 0,
    AVVideoWidthKey: 0,
    /*
    AVVideoCompressionPropertiesKey: [
      AVVideoMaxKeyFrameIntervalDurationKey: 2,
      AVVideoProfileLevelKey: AVVideoProfileLevelH264Baseline30,
      AVVideoAverageBitRateKey: 512000
    ]
    */
  ]
])

📜 License

BSD-3-Clause