Stalls or video corruption with NASA TV Streams about hls.js

[dstieglitz]

Also seeing an issue when trying to view http://semhdlive-f.akamaihd.net/i/sem_spot004@120204/master.m3u8?dw=3600

[mangui]

@dstieglitz for your stream, it is related to the fact that it contains an audio-only level.
as it is unfortunately not possible to dynamically add a sourcebuffer in the middle of the playback (switch from audio-only to audio-video), i will remove such audio-only level from the playlist and it should fix it.

[mangui]

@dstieglitz you might recheck your stream with hls.js/master now
it works fine with FF.
it fails with Chrome, with the following error raised in chrome://media-internals/
Implicit HE-AAC signalling is being used. Please use mp4a.40.5 instead of mp4a.40.2 in the mimetype.

you need to fix your playlist and declare audio as being mp4a.40.5

[mangui]

i tried according mp4.40.5 instead, I got another error with Chrome now:
Media segment did not begin with key frame. Support for such segments will be available in a future version. Please see https://crbug.com/229412. 00:00:01 271 error Append: stream parsing failed. Data size=131072 append_window_start=0 append_window_end=inf
are you using open GOP ?

[mangui]

if you are using open GOP, it might explain why there is a video glitch with FF at the beginning ...

[gjanblaszczyk]

On firefox 42/43 for mac this NASA link is broken. I can see only the top of the video but I don't see the rest of the screen... It looks like normal video is working fine but live is not working very good...
http://dailymotion.github.io/hls.js/demo/?src=http%3A%2F%2Fnasatv-lh.akamaihd.net%2Fi%2FNASA_101%40319270%2Fmaster.m3u8

If you are not able to reproduce this then I can show you printscreen and logs....

[mangui]

yes, this issue can only be reproduced on FF/OSX as of today.
it is being investigated here : https://bugzilla.mozilla.org/show_bug.cgi?id=1208035

[gjanblaszczyk]

Thank you very much for fast response... :)

[mangui]

green screen issue should be fixed now

[phloxic]

With v0.4.9 plays continuously in FF 44.0 (Mac).

[mangui]

still failing for me when switching level.

[gjanblaszczyk]

When I try to play this stream here: (http://dailymotion.github.io/hls.js/demo/?src=http%3A%2F%2Fnasatv-lh.akamaihd.net%2Fi%2FNASA_101%40319270%2Fmaster.m3u8&enableStreaming=true&autoRecoverError=true&enableWorker=true&levelCapping=-1&defaultAudioCodec=undefined) it plays fine on chrome with no throttling network option but when I set network limiter under the chrome to 1MB The video tag is not even start playing and I am getting lot of this errors: "?src=http%3A%2F%2Fnasatv-lh.akamaihd.net%2Fi%2FNASA_101%40319270%2Fmaster.m3u8&enableStreaming=true…:603 The video playback was aborted due to a corruption problem or because the video used features your browser did not support" Do you have this same behavior?

[mangui]

Hi @gjanblaszczyk are you still experimenting this media decode error issues ?

[gjanblaszczyk]

Hi @mangui Now is working fine 👍

[mangui]

great ! closing

[phloxic]

FWIW - I don't get errors, but do get indefinite stalling somtimes. I guess that's out of scope for this bug (the streams themself are quite problematic)?