Live stream issues on Tizen 2.4 since 2.5.0 #1134

JeppeTh · 2021-05-23T18:53:46Z

Description

Since 2.5.0 I have issues with some HLS live streams.
Hangs on repeated vhs-live-resync.
Not sure how to gather more information...

Sources

Steps to reproduce

Results

Expected

On 2.4.2 playback starts

Error output

More than once per seconds I get
Usage:vhs-live-resync
State:0

Additional Information

videojs-http-streaming version

videojs-http-streaming 2.5.0

videojs version

Any video.js version.

Browsers

Platforms

Tizen 2.4

Other Plugins

Other JavaScript

welcome · 2021-05-23T18:53:47Z

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pmendozav · 2021-06-30T03:10:29Z

I had the same issue.. my guess was that it is related with the chromium version that tizen uses, there was an update related with pts/dts that was done for modern browsers

JeppeTh · 2021-07-20T22:02:57Z

I had the same issue.. my guess was that it is related with the chromium version that tizen uses, there was an update related with pts/dts that was done for modern browsers

"had"? So how was it solved you mean, by some chromium/browser update? Can you find out which chromium version my tizen is using with some debug call?
From this spec it seems at least 2.4 is running webkit and not chromium...
https://developer.samsung.com/smarttv/develop/specifications/web-engine-specifications.html

I have a 2020 TV as well - don't remember if I got this issue there or not...

JeppeTh · 2021-07-23T21:55:22Z

Analysed some more - it seems in 2.4.2 seekable.lenth equals 0 which means it will never end up in the resync part.
In > 2.4.2 seekable.length is set to 1. But I guess the "beforeSeekableWindow" should check state or similar as well.
At least it seem the seek to livePoint fails and we end up in a loop (i.e. currentTime is always 0)

This goes on forever:
seekable.start(0): 8
seekable.end(0) : 28
Fell out of live window at time 0. Seeking to live point (seekable end) 28

seekable.start(0) : 8
seekable.end(0) : 28
Fell out of live window at time 0. Seeking to live point (seekable end) 28

JeppeTh · 2021-07-23T22:16:02Z

Adding a currentTime > 0 to the beforeSeekableWindow_ to avoid the loop didn't really make it work.
Instead it ends up in stalled where it seems to hang forever - no events.

gkatsev · 2021-07-26T18:51:17Z

From what I can gather, though, I haven't tried it on a real device and the emulator isn't working for me, all these issues with old TVs is the switch from DTS to PTS in chrome and other browsers that we followed to support them. Unfortunately, there likely isn't a good way for us to support those older browsers which use DTS while supporting the newer browsers which use PTS.
Our recommendation would be to pin the version of VHS to to 2.4.

JeppeTh · 2021-07-26T22:23:36Z

How can you notice that https://github.com/videojs/http-streaming/releases/tag/v2.5.0 changed anything related to DTS/PTS?

Is there anyway to confirm that this (=DTS vs PTS) is the issue I'm getting?

I tried once more with latest video.js and then actually any streams (not just live streams) fails to play - they end up in stalled instead of resync loop though....

pmendozav · 2021-08-09T12:01:08Z

The dummy way I used to check that the problem was related with pts/dts was: compiling http-streaming switching ptsTime -> dtsTime in segment.js

JeppeTh · 2021-08-09T13:54:50Z

Ok thx, but don't know how to build it...
But diffing http-streaming.js between 2.4.2 and 2.5.0 showed no differences in the ptsTime occurences. But there might of course be other diffs causing it to end up at ptsTime instead of dtsTime...

JeppeTh · 2021-12-26T23:38:51Z

I changed ptsTime -> dtsTime and built manually, but still doesn't work.
I don't see vhs-live-resync - but the reason for that could be that the live streams has changed something.
I can't get any kind of stream working with 2.5 and pts->dts doesn't make a difference - all I get is stalled state.

Any other suggestions on differences between 2.5 and 2.4.2?
I also noticed that already 2.4.2 uses ptsTime - changing back leads to the resync event again...

Also saw that vhs-utils had been stepped - tried to use the old version, lead to some compilation warning and still resync...

Tried
b072c93 @ chore: update @videojs/vhs-utils to v3.0.0 (#1036)
which doesn't work either. So I guess something in this one breaks...

JeppeTh · 2021-12-29T13:00:30Z

Seems I kind of solved it - but can't understand from/why there's a problem from b072c93

imported/videojs-http-streaming.min.js (4) :syncPoint for [time: 0] chosen with strategy [Playlist]: [time:0, segmentIndex:0]
imported/videojs-http-streaming.min.js (4) :checkBuffer_ returning https://lbs-aws-hls.tv4play.se/group01/bbr-event1/live.isml/live-audio_0=128000-video=2499968-427287073.ts
imported/videojs-http-streaming.min.js (4) :READY -> WAITING
imported/videojs-http-streaming.min.js (4) :syncPoint for [time: 0] chosen with strategy [Playlist]: [time:0, segmentIndex:0]
imported/videojs-http-streaming.min.js (4) :syncPoint for [time: 0] chosen with strategy [Playlist]: [time:0, segmentIndex:0]
imported/videojs-http-streaming.min.js (3) :TypeError: 'undefined' is not a function (evaluating 'ArrayBuffer.isView(t)')

If I change to it works.
var isTypedArray = function isTypedArray(obj) { try { return ArrayBuffer.isView(obj); } catch (e) { return false; } };

video-archivist-bot · 2021-12-29T13:00:32Z

Hey! We've detected some video files in a comment on this issue. If you'd like to permanently archive these videos and tie them to this project, a maintainer of the project can reply to this issue with the following commands:

for https://lbs-aws-hls.tv4play.se/group01/bbr-event1/live.isml/live-audio_0=128000-video=2499968-427287073.ts: say @video-archivist-bot save 9E33LE

…rsing codecs from files (#14) BREAKING CHANGE: toUint8 in byte-helpers functions slightly differently BREAKING CHANGE: getId3Offset is exported from id3-helpers rather than containers We can now parse the container for and many of the codecs within (where applicable) for mp4, avi, ts, mkv, webm, ogg, wav, aac, ac3 (and ec3 which is contained in ac3 files), mp3, flac, raw h265, and raw h264. Codec parsing has also been extended to parse codec details in a file for vp09, avc (h264), hevc (h265), av1, and opus Finally we have the following additional features to our parsing of codec/container information: * skipping multiple id3 tags at the start of a file for flac, mp3, and aac * discarding emulation prevention bits (in h264, h265) * parsing raw h264/h265 to get codec params for ts, avi, and even raw h264/h265 files

gkatsev · 2022-03-14T22:49:19Z

Tizen's documentation seems to imply that TypedArrays on TVs weren't available until 3.0, but on mobile it was available on 2.4 (https://docs.tizen.org/application/web/guides/w3c/supplement/typedarray/#related-information). Are you running on TV or on Mobile?

Though, based on your comment, it seems like it worked with just gating the isTypedArray check in VHS-utils. I wonder if they have TypedArrays, but it isn't complete? Like ArrayBuffer.isView() is missing?
According to MDN, ArrayBuffer was added in Chrome 7, but ArrayBuffer.isView() was added in Chrome 32.

Depends on videojs/vhs-utils#33 Fixes #1134

JeppeTh · 2022-03-16T21:40:01Z

Yes running TV 2.4.

Do you want me to try
var isTypedArray = function isTypedArray(obj) { return ArrayBuffer && ArrayBuffer.isView(obj);}
instead?;

gkatsev · 2022-03-16T21:43:15Z

@JeppeTh can you check if ArrayBuffer.isView is available?

gkatsev · 2022-03-16T21:47:14Z

And whether stuff like Uint8Array are available.

JeppeTh · 2022-03-16T21:48:20Z

Yes sure - I'll check
ArrayBuffer
ArrayBuffer.isView
Uint8Array

gkatsev · 2022-03-16T21:50:46Z

Thanks!

JeppeTh · 2022-03-17T22:32:04Z

Seems ArrayBuffer and Uint8Array exists but ArrayBuffer.isView is undefined as you were guessing.

gkatsev · 2022-03-17T22:33:53Z

Awesome! Thanks for checking. Then, I'll work on getting releases out tomorrow, but should then be fixed with videojs/vhs-utils#33 and #1258

JeppeTh · 2022-03-17T22:35:01Z

Great - thx!

Fixes #1134

gkatsev · 2022-04-20T20:29:34Z

This is now published in Video.js 7.19.2!

gkatsev mentioned this issue Jul 29, 2021

TypeError on Tizen 2.4 since 7.12.2 videojs/video.js#7245

Closed

gkatsev added a commit that referenced this issue Mar 14, 2022

fix: ArrayBuffer.isView may not be available everywhere

8084f5b

Depends on videojs/vhs-utils#33 Fixes #1134

gkatsev mentioned this issue Mar 14, 2022

fix: ArrayBuffer.isView may not be available everywhere #1258

Merged

gkatsev closed this as completed in #1258 Apr 5, 2022

gkatsev added a commit that referenced this issue Apr 5, 2022

fix: ArrayBuffer.isView may not be available everywhere (#1258)

e492fe8

Fixes #1134

JeppeTh mentioned this issue Apr 28, 2023

ArrayBuffer.isView may not be available everywhere - again #1394

Closed

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Live stream issues on Tizen 2.4 since 2.5.0 #1134

Live stream issues on Tizen 2.4 since 2.5.0 #1134

JeppeTh commented May 23, 2021

welcome bot commented May 23, 2021

pmendozav commented Jun 30, 2021

JeppeTh commented Jul 20, 2021

JeppeTh commented Jul 23, 2021

JeppeTh commented Jul 23, 2021

gkatsev commented Jul 26, 2021

JeppeTh commented Jul 26, 2021 •

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pmendozav commented Aug 9, 2021 •

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JeppeTh commented Aug 9, 2021

JeppeTh commented Dec 26, 2021

JeppeTh commented Dec 29, 2021 •

edited

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video-archivist-bot commented Dec 29, 2021

gkatsev commented Mar 14, 2022

JeppeTh commented Mar 16, 2022

gkatsev commented Mar 16, 2022

gkatsev commented Mar 16, 2022

JeppeTh commented Mar 16, 2022

gkatsev commented Mar 16, 2022

JeppeTh commented Mar 17, 2022

gkatsev commented Mar 17, 2022

JeppeTh commented Mar 17, 2022

gkatsev commented Apr 20, 2022

Live stream issues on Tizen 2.4 since 2.5.0 #1134

Live stream issues on Tizen 2.4 since 2.5.0 #1134

Comments

JeppeTh commented May 23, 2021

Description

Sources

Steps to reproduce

Results

Expected

Error output

Additional Information

videojs-http-streaming version

videojs version

Browsers

Platforms

Other Plugins

Other JavaScript

welcome bot commented May 23, 2021

pmendozav commented Jun 30, 2021

JeppeTh commented Jul 20, 2021

JeppeTh commented Jul 23, 2021

JeppeTh commented Jul 23, 2021

gkatsev commented Jul 26, 2021

JeppeTh commented Jul 26, 2021 • edited Loading

pmendozav commented Aug 9, 2021 • edited Loading

JeppeTh commented Aug 9, 2021

JeppeTh commented Dec 26, 2021

JeppeTh commented Dec 29, 2021 • edited Loading

video-archivist-bot commented Dec 29, 2021

gkatsev commented Mar 14, 2022

JeppeTh commented Mar 16, 2022

gkatsev commented Mar 16, 2022

gkatsev commented Mar 16, 2022

JeppeTh commented Mar 16, 2022

gkatsev commented Mar 16, 2022

JeppeTh commented Mar 17, 2022

gkatsev commented Mar 17, 2022

JeppeTh commented Mar 17, 2022

gkatsev commented Apr 20, 2022

JeppeTh commented Jul 26, 2021 •

edited

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pmendozav commented Aug 9, 2021 •

edited

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JeppeTh commented Dec 29, 2021 •

edited

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