lf.swift

lf is a lIVE fRAMEWORK. Camera and Microphone streaming library via RTMP, HLS for iOS, OSX.

Install

CocoaPods

source'https://github /CocoaPods/Specs.git'
use_frameworks!

defimport_pods
pod'lf','~> 0.3.0'
end

target'Your Target'do
platform:ios,'8.0'
import_pods
end

RTMP Usage

Real Time Messaging Protocol (RTMP).

varrtmpConnection:RTMPConnection=RTMPConnection()
varrtmpStream=RTMPStream(rtmpConnection:rtmpConnection)
rtmpStream.view.videoGravity=AVLayerVideoGravityResizeAspectFill
rtmpStream.attachAudio(AVCaptureDevice.defaultDeviceWithMediaType(AVMediaTypeAudio))
rtmpStream.attachCamera(AVMixer.deviceWithPosition(.Back))

view.addSubview(rtmpStream.view)
rtmpConnection.connect("rtmp://localhost/appName/instanceName")
rtmpStream.publish("streamName")

Settings

varrtmpStream=RTMPStream(rtmpConnection:rtmpConnection)
rtmpStream.captureSettings=[
"fps":30,// FPS
"sessionPreset":AVCaptureSessionPresetMedium,// input video width/height
"continuousAutofocus":false,// use camera autofocus mode
"continuousExposure":false,// use camera exposure mode
]
rtmpStream.audioSettings=[
"muted":false,// mute audio
"bitrate":32*1024,
]
rtmpStream.videoSettings=[
"width":640,// video output width
"height":360,// video output height
"bitrate":160*1024,// video output bitrate
"profileLevel":kVTProfileLevel_H264_Baseline_3_1,// H264 Profile require "import VideoToolbox"
"maxKeyFrameIntervalDuration":2,// key frame / sec
]

RTMP Auth

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

HTTP Usage

HTTP Live Streaming (HLS). Your iPhone/Mac become a IP Camera. Basic snipet. You can seehttp://ip.address:8080/hello/playlist.m3u8

httpStream=HTTPStream()

httpStream.attachCamera(AVMixer.deviceWithPosition(.Back))
rtmpStream.attachAudio(AVCaptureDevice.defaultDeviceWithMediaType(AVMediaTypeAudio))

httpStream.publish("hello")

httpService=HTTPService(domain:"",type:"_http._tcp",name:"lf",port:8080)
httpService.startRunning()
httpService.addHTTPStream(httpStream)

view.addSubview(httpStream.view)

License

New BSD

Enviroment

lf	iOS	OSX	Swift	CocoaPods
0.3	8.0	10.11	2.3	1.0.0
0.2	8.0	-	2.3	0.39.0

Reference

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