textTracks crash on iOS with m3u8 video

[clementnv]

Bug

When textTracks is enable on video .m3u8, crash on iOS device,

Platform

Which player are you experiencing the problem on:

• iOS

Environment info

Library version: 6.0.0-alpha.6
Device: iPhone 14

Steps To Reproduce

Reproducible sample code

    <Video
          source={{
            uri: 'https://bitdash-a.akamaihd.net/content/sintel/hls/playlist.m3u8',
          }}
          textTracks={[
            {
              title: 'English CC',
              language: 'en',
              type: TextTrackType.VTT,
              uri: 'https://bitdash-a.akamaihd.net/content/sintel/subtitles/subtitles_en.vtt',
            },
          ]}
          selectedTextTrack={{
            type: 'language',
            value: 'en',
          }}
        />

You got an error:

react_native_video/RCTVideoUtils.swift:190: Fatal error: Unexpectedly found nil while implicitly unwrapping an Optional value
2023-08-09 23:00:52.007849+0200 KephyreTraining[3788:328590] react_native_video/RCTVideoUtils.swift:190: Fatal error: Unexpectedly found nil while implicitly unwrapping an Optional value

...

Expected behaviour

1. No crash of app

Thank you for your help 🙏

[nicolaosm]

Experiencing that too! Appreciate any help on this.

[mikmedina]

same issue

[nicolaosm]

textTracks also applied on .mp4 videos will lead to an iOS crash on alpha 7. Not just .m3u8

[GhayoorUlHaq]

I'm also experiencing the same issue, and here are my findings:

• Latest alpha release (v6.0.0-alpha.7) will crash when we define textTracks for both .m3u8 and .mp4.
• Last stable release (5.2.1) is not crashing but when we define textTracks with selectedTrack, .mp4 is working fine even though I can see the subtitles, but.m3u8 is not loading.

[zaferatli]

Because RCTVideo 314. line send asset url only, then RCTVideoUtils 190 line cannot get assets.timeRange.duration item and return error. We need to send video object from RCTVideo 314 line then crash gonna fix

RCTVideo 314 Line

[freeboub]

@zaferatli but how to fix the issue and make sideloaded subtitles working? :) I started investigations, but I didn't find trivial fix ...

[zaferatli]

actually there is func calculatePlayableDuration in RCTVideoUtils when i use this func its return 0, if we get duration of video then we can pass.

[timvvoodman]

Having the same issue, m3u8 on iOS trying to load text tracks crashes the video player. Due to Accessibility concerns we are having to use a different solution for iOS, would ideally like to use this package for both.

[zaferatli]

@timvvoodman @freeboub
Image i am pretty close to pr. Probably tomorrow pr will be open

[matteodanelli]

@timvvoodman @freeboub Image i am pretty close to pr. Probably tomorrow pr will be open

Any news?

[freeboub]

The crash has been fixed for next release (alpha.11 or beta.1)
unfiortunnetlly this feature doesn't work as expected (like on 5.2 branch, confirmed by @KrzysztofMoch).
linked PR: #3330