Swiftpack.co - Package - thomaschristensen/Pantomime

Pantomime

Pantomime is a lightweight framework for iOS, OSX and tvOS that can read and parse HTTP Live Streaming manifests.

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Installation

You can use Carthage to install Pantomime by adding that to your Cartfile:

github "thomaschristensen/Pantomime"

via CocoaPods

To use CocoaPods just add this to your Podfile:

pod 'Pantomime'

via Swift Package Manager

To use Pantomime as a Swift Package Manager package just add the following in your Package.swift file.

import PackageDescription

let package = Package(
    name: "HelloWorld",
        dependencies: [
            .Package(url: "https://github.com/thomaschristensen/Pantomime", majorVersion: 0)
        ]
    )

Usage

To use the parser just do the following:

import Pantomime

let builder = ManifestBuilder()
if let url = NSURL(string: "http://devimages.apple.com/iphone/samples/bipbop/bipbopall.m3u8") {
    let manifest = builder.parse(url)
}

The ManifestBuilder's parse method expects a master playlist manifest to be found at the other end of the URL. Once this has been parsed all Media Playlist Manifests referred to in the master will also be fetched and parsed.

Core Classes

ManifestBuilder

The manifest builder can parse both Master and Media playlist manifests. You can choose to let ManifestBuilder parse master and it's media playlists, or you can parse either the master or media playlists only.

MasterPlaylist

Represents a master playlist and it holds a reference to a list of media playlist objects

MediaPlaylist

The media playlist object contains a list of all video segments and other properties like target duration (max duration of each segment), path, version, bandwidth, program-id and the starting media sequence number.

MediaSegment

This object holds a reference to the actual video file (path), it's actual duration, sequence number and optional title.

Helper Classes

BufferedReader

This is a protocol that defines how these text manifest documents can be read line by line. Various implementations of this protocol exist helping reading the documents from a File, a URL or from a String. These implementations are FileBufferedReader, URLBufferedReader and StringBufferedReader.

ReaderBuilder

Is a utility class that can be used to construct the actual implementation of BufferedReader by specifying which type is required. (This class is already deprecated. Use the implementations of BufferedReader directly)

NSURLExtension

An extension to the NSURL class has been made to assist in constructing the right URL when given relative paths in the various manifest files.


let masterManifest = "http://devimages.apple.com/iphone/samples/bipbop/bipbopall.m3u8"
let mediaManifest = "gear1/prog_index.m3u8"

if let masterManifestURL = NSURL(string: masterManifest) {
    let mediaManifestURL = masterManifestURL.URLByReplacingLastPathComponent(mediaManifest)
    // mediaManifestURL now = http://devimages.apple.com/iphone/samples/bipbop/gear1/prog_index.m3u8
}

License

The Pantomime Framework is released under the MIT License.

Todo

  • Construct Master and Media Playlist objects and write them as files

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