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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Enterprise Grade APIs for Feeds & Chat. Try the iOS Chat tutorial 💬

💬 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

🌏 Related projects

Project name	Notes	License
HaishinKit for Android.	Camera and Microphone streaming library via RTMP for Android.	BSD 3-Clause "New" or "Revised" License
HaishinKit for Flutter.	Camera and Microphone streaming library via RTMP for Flutter.	BSD 3-Clause "New" or "Revised" License

🎨 Features

RTMP

SRT(beta)

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

Features	PiPHKView	MTHKView
Engine	AVSampleBufferDisplayLayer	Metal
Publish	✔	✔
Playback	✔	✔
VisualEffect	✔	✔
MultiCamera	✔	✔
PictureInPicture	✔

Others

tvOS 17.0 for AVCaptureSession.
Support multitasking camera access.
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.

Camera and microphone publish.
Playback

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

Version	Xcode	Swift
1.7.0+	15.0+	5.9+
1.6.0+	15.0+	5.8+
1.5.0+	14.0+	5.7+

OS

-	iOS	tvOS	macOS	visionOS	watchOS
HaishinKit	12.0+	12.0+	10.13+	1.0+	-
SRTHaishinKit	12.0+	-	13.0+	-	-

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
    ]
    */
  ]
])

💠 Sponsorship

Looking for sponsors. Sponsoring I will enable us to:

Purchase smartphones or peripheral devices for testing purposes.
Pay for testing on a specific streaming service or for testing on mobile lines.
Potentially private use to continue the OSS development

If you use any of our libraries for work, see if your employers would be interested in sponsorship. I have some special offers. I would greatly appreciate. Thank you.

If you request I will note your name product our README.
If you mention on a discussion, an issue or pull request that you are sponsoring us I will prioritise helping you even higher.

スポンサーを募集しています。利用用途としては、

テスト目的で、スマートフォンの購入や周辺機器の購入を行います。
特定のストリーミングサービスへのテストの支払いや、モバイル回線でのテストの支払いに利用します。
著書のOSS開発を継続的に行う為に私的に利用する可能性もあります。

このライブラリーを仕事で継続的に利用している場合は、ぜひ。雇用主に、スポンサーに興味がないか確認いただけると幸いです。いくつか特典を用意しています。

README.mdへの企業ロゴの掲載
IssueやPull Requestの優先的な対応

Sponsorship

📖 Reference

Adobe’s Real Time Messaging Protocol
- http://www.adobe.com/content/dam/Adobe/en/devnet/rtmp/pdf/rtmp_specification_1.0.pdf
Action Message Format -- AMF 0
- https://www.adobe.com/content/dam/acom/en/devnet/pdf/amf0-file-format-specification.pdf
Action Message Format -- AMF 3
- https://www.adobe.com/content/dam/acom/en/devnet/pdf/amf-file-format-spec.pdf
Video File Format Specification Version 10
- https://www.adobe.com/content/dam/acom/en/devnet/flv/video_file_format_spec_v10.pdf
Adobe Flash Video File Format Specification Version 10.1
- http://download.macromedia.com/f4v/video_file_format_spec_v10_1.pdf

📜 License

BSD-3-Clause

yangzy/HaishinKit.swift

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

💬 Communication

💖 Sponsors

🌏 Related projects

🎨 Features

RTMP

SRT(beta)

Multi Camera

Rendering

Others

🐾 Examples

🌏 Requirements

Development

OS

Cocoa Keys

🔧 Installation

🔧 Prerequisites

📓 RTMP Usage

Ingest

Playback

Authentication

📓 SRT Usage

Ingest

Playback

📓 Settings

📹 Capture

🔊 AudioCodecSettings

🎥 VideoCodecSettings

⏺️ Recording

💠 Sponsorship

📖 Reference

📜 License