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Problem with some mobiles in conference rooms


Diego Aguirre
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Hello, i have a problem when some mobiles are trying to join to a conference room in a navigator. The error is "notSetRemoteDescription"

I know that i could in some way that issue enabling VP8 Codec support but is it really necessary to add adaptive streaming to enable VP8 and H264? or is there another way for solving this issue?
I am ussing the javascript sdk

Thank you in advance
Diego Aguirre
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Hi Diego,
​Can you tell us on which devices you are facing this issue and if there is some sort of reproduce scenario.
Yes, if you enable both H264 as well as VP8 then it's necessary to add adaptive streaming. However if you one of them then there's no need to use ABR.
If you don't specifically require MP4 recording and HLS play, you can disable H264 and use VP8 only.
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​Best Regards,
Mohit Dubey

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Hi Diego,

Thanks for writing back.
Yes some devices don't have H.264 codec support for webrtc so you can use VP8.
You can enable H.264 and VP8 both and MP4 recording. To enable both codec you need to use atleast one adaptive bitrate.
or you can only enable VP8 codec and WebM recording, and then once the WebM recording finishes, you can call a sample script to convert WebM to MP4.

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Best Regards,
Mohit Dubey

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Thank you for your help, Mohit. 

I am recording the videos in WebM but they are always saved in low quality. Specifically 150p.  Also when i examine them with ffmpeg it says that it has low quality but when i watch those videos the quality is really good.
Do you know what would be happening?

Thank you in advance

 

Diego Aguirre
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Hi Diego,

Unfortunately I don't have much idea as to how this's happening, maybe there's something with the script.
I will recommend you to create an issue with the exact reproduce scenario on GitHub https://github.com/ant-media/Ant-Media-Server/issues and we can try and schedule it to see.

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Best Regards,
Mohit Dubey  

 

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