HLSCachingReverseProxyServer

A simple local reverse proxy server for HLS segment cache.

Concept

1. User sets a reverse proxy url instead of original url.

   - https://example.com/vod.m3u8
   + http://127.0.0.1:8080/vod.m3u8?__hls_origin_url=https://example.com/vod.m3u8

2. AVAsset requests a playlist(.m3u8) to the local reverse proxy server.
3. Reverse proxy server fetches the original playlist and replaces all URIs to point the local reverse proxy server.

     #EXTM3U
     #EXTINF:12.000,
   - vod_00001.ts
   + http://127.0.0.1:8080/vod.m3u8?__hls_origin_url=https://example.com/vod_00001.ts
     #EXTINF:12.000,
   - vod_00002.ts
   + http://127.0.0.1:8080/vod.m3u8?__hls_origin_url=https://example.com/vod_00002.ts
     #EXTINF:12.000,
   - vod_00003.ts
   + http://127.0.0.1:8080/vod.m3u8?__hls_origin_url=https://example.com/vod_00003.ts

4. AVAsset requests segments(.ts) to the local server.
5. Reverse proxy server fetches the original segment and caches. Next time the server will return the cached data for the same segment.

Usage

let server = HLSCachingReverseProxyServer()
server.start(port: 8080)

let playlistURL = URL(string: "http://devstreaming.apple.com/videos/wwdc/2016/102w0bsn0ge83qfv7za/102/0640/0640.m3u8")!
let url = server.reverseProxyURL(from: playlistURL)!
let playerItem = AVPlayerItem(url: url)
self.player.replaceCurrentItem(with: playerItem)

Dependencies

• GCDWebServer
• PINCache

Installation

Podfile

pod 'HLSCachingReverseProxyServer'

Development

$ make project
$ open HLSCachingReverseProxyServer.xcworkspace

License

HLSCachingReverseProxyServer is under MIT license. See the LICENSE for more info.