go-m3u8

Work in Progress!

There isn't a stable version for now. As this is currently a WIP, the API may have changes.

go-m3u8

Parser for m3u8 to facilitate manifest manipulation.

We currently only support Live Streaming manifests.

1. Doubly Linked List

The m3u8 is represented by a doubly linked list. This data structure allows us to access the manifest in a sorted manner and apply operations (modify, add, remove) to its content.

Examples of Useful Operations

• Add discontinuity tag for SSAI segments manipulation
• Change discontinuity sequence tag count
• Remove DRM for SSAI segments manipulation by adding the tag #EXT-X-KEY:METHOD=NONE
• Add SGAI at DateRange tags
• Remove packager comment lines

2. Tags

To guarantee scalibility, our lib considers a data structure for the HLS elements that follows the RFC documentation.

The tags package separates HLS elements into sub-packages according to the Playlist Tags section on the RFC.

(The tags listed below are the ones currently supported by the lib.)

1. basic - Basic Tags (Section 4.4.1).

• #EXTM3U
• #EXT-X-VERSION

2. exclusive - Media or Multivariant Playlist Tags (Section 4.4.2).

• #EXT-X-INDEPENDENT-SEGMENTS

3. media - Media Playlist, Metada and Segment Tags (Sections 4.4.3 to 4.4.5).

• #EXT-X-DATERANGE

4. multivariant - Multivariant Playlist Tags (Section 4.4.6).

• #EXT-X-TARGETDURATION
• #EXT-X-MEDIA-SEQUENCE
• #EXTINF
• #EXT-X-DISCONTINUITY
• #EXT-X-PROGRAM-DATE-TIME

5. others - The tags in this section are "non-official" and are not listed in the RFC, e.g. tags added to the manifest by the packaging service.

• #EXT-X-CUE-OUT
• #EXT-X-CUE-IN
• In-manifest comments (begin with # and are NOT tags).

Getting started

go install github.com/globocom/go-m3u8