mangui/flashls

GrindPlayer:audiotrack wrong captions for playlist with alternate audio

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#236 opened on Mar 31, 2015

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 (4 comments) (0 reactions) (0 assignees)ActionScript (745 stars) (260 forks)batch import
OSMFbughelp wanted

Description

For example, this playlist have 2 audiostreams with NAME tags "Russian" and "English", and 2 videostreams without audio. Player shows me 2 language - "Default" and "English"

EXTM3U

EXT-X-VERSION:4

EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="audio",LANGUAGE="ru",NAME="Russian",AUTOSELECT=YES,DEFAULT=YES,URI="3591/audio_l.m3u8"

EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="audio",LANGUAGE="en",NAME="English",AUTOSELECT=YES,DEFAULT=NO,URI="3591/audio_r.m3u8"

EXT-X-STREAM-INF:PROGRAM-ID=1,AUDIO="audio",DEFAULT=NO,BANDWIDTH=98304

3591/160p_wa.m3u8

EXT-X-STREAM-INF:PROGRAM-ID=1,AUDIO="audio",DEFAULT=NO,BANDWIDTH=548864

3591/360p_wa.m3u8

Contributor guide

Tech stack
None
Domain
frontend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
over 1 week
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
understanding of HLS protocolActionScript basicsfamiliarity with flashls player internals
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
25
Research direction
The issue reports that when a playlist has multiple audio streams (e.g., 'Russian' and 'English'), the player incorrectly shows only 'Default' and 'English'. Investigation should focus on how the flashls parser handles EXT X MEDIA tags with TYPE=AUDIO, particularly the interplay between DEFAULT=YES and the NAME attribute. The code likely resides in the HLS manifest parser, possibly in files like 'HLSParser.as' or similar. Examine the logic that builds the audio track list and how it assigns the 'Default' label. Also check if there are any known fixes or discussions in the issue comments.