nextlevelsessionexporter

About NextLevelSessionExporter

NextLevelSessionExporter is a powerful and easy-to-use library for exporting media sessions in iOS applications. It provides developers with a comprehensive set of tools to efficiently manage and export audio and video sessions recorded using the NextLevel library. With NextLevelSessionExporter, you can effortlessly handle session trimming, exporting, and customization, while ensuring high-quality media output.

Key Features

Effortlessly export media sessions to various formats
Handle session trimming with ease
Customize video output settings including size, bitrate, and codec
Apply video filters and transformations
Export audio sessions as various file formats
Securely encrypt exported sessions
Support for multi-track audio and video sessions

Installation

To integrate NextLevelSessionExporter into your iOS project, follow the steps below:

Ensure you have the latest version of CocoaPods installed.
Add the following line to your Podfile:

pod 'NextLevelSessionExporter', '~> 2.0'

Save the Podfile and run the command pod install in Terminal.
Open the generated .xcworkspace file.
Import NextLevelSessionExporter in your Swift file:

import NextLevelSessionExporter

Getting Started

To begin using NextLevelSessionExporter, you need to follow these steps:

1. Export a Session

To export a media session, you first need to create an instance of NLSessionExporter. Then, specify the input URL of the session, the output URL for the exported session, and any desired export settings. Finally, call the exportAsynchronously method to start the export process.

// Code example to export a session let exporter = NLSessionExporter() exporter.inputURL = inputURL exporter.outputURL = outputURL exporter.exportSettings = exportSettings

exporter.exportAsynchronously { (error) in // Check for and handle any errors if let error = error { print("Export failed: \(error)") } else { print("Export succeeded!") } }

2. Trim a Session

If you need to trim a session before exporting, you can use the trimTimeRange property of NLSessionExporter. Simply set the desired time range to be exported, and then call the exportAsynchronously method as shown above.

// Code example to trim and export a session let exporter = NLSessionExporter() exporter.inputURL = inputURL exporter.outputURL = outputURL exporter.exportSettings = exportSettings exporter.trimTimeRange = CMTimeRangeMake(start: startTime, duration: duration)

exporter.exportAsynchronously { (error) in // Check and handle errors if let error = error { print("Export failed: \(error)") } else { print("Export succeeded!") } }

Advanced Settings

NextLevelSessionExporter provides a range of advanced settings to customize the output session. Below are some examples:

1. Export Video

To customize video settings, you can use the videoSettings property of NLAVAssetExportSession. This allows you to specify video size, bitrate, codec, and other parameters.

// Code example to customize video settings let assetExport = NLAVAssetExportSession(asset: asset) assetExport.outputURL = outputURL assetExport.outputFileType = AVFileType.mp4


let videoSettings = [

    AVVideoCodecKey: AVVideoCodecType.h264,

    AVVideoWidthKey: 1280,

    AVVideoHeightKey: 720,

    AVVideoCompressionPropertiesKey: [

        AVVideoAverageBitRateKey: 2000000

    ]

]
assetExport.videoSettings = videoSettings

assetExport.exportAsynchronously { (error) in // Check and handle errors if let error = error { print("Export failed: \(error)") } else { print("Export succeeded!") } }

2. Export Audio

To export only the audio part of a session, you can specify the desired audio outputFileType and use the audioSettings property of NLAVAssetExportSession to customize audio output settings.

// Code example to customize audio settings let assetExport = NLAVAssetExportSession(asset: asset) assetExport.outputURL = outputURL assetExport.outputFileType = AVFileType.aiff


assetExport.audioSettings = [

    AVFormatIDKey: kAudioFormatLinearPCM,

    AVSampleRateKey: 44100,

    AVNumberOfChannelsKey: 2,

    AVLinearPCMBitDepthKey: 16,

    AVLinearPCMIsBigEndianKey: false,

    AVLinearPCMIsFloatKey: false

]

assetExport.exportAsynchronously { (error) in // Check and handle errors if let error = error { print("Export failed: \(error)") } else { print("Export succeeded!") } }

Conclusion

NextLevelSessionExporter is a must-have library for managing and exporting media sessions in iOS applications. With its extensive features and customizable settings, it simplifies the export process and provides high-quality output. Whether you need to export videos, trim sessions, or customize audio settings, NextLevelSessionExporter has you covered. Start using NextLevelSessionExporter today and take your media session exports to the next level!