HydrogenAudio

Lossy Audio Compression => Opus => Topic started by: MarkL on 2018-03-05 12:03:33

Title: how to check opus encode frame has FEC
Post by: MarkL on 2018-03-05 12:03:33
I want to know if an opus encode frame has FEC information or not, I checked RFC6716 and 7587, but can't find the answer, anyone can help? Really appreciate your help!
Title: Re: how to check opus encode frame has FEC
Post by: lithopsian on 2018-03-05 14:24:30
Are you looking for a tool that will just tell you this, or do you want to examine the frames by hand?  Isn't FEC encoded in an LBRR frame?
Title: Re: how to check opus encode frame has FEC
Post by: MarkL on 2018-03-06 01:22:34
Are you looking for a tool that will just tell you this, or do you want to examine the frames by hand?  Isn't FEC encoded in an LBRR frame?
Lithopsian,  thanks a lot for your answer! I want to check the frames by hand, now I have the encoded frames, and want to know if there is FEC data in these frames, do you have any idea? Thanks again!
Title: Re: how to check opus encode frame has FEC
Post by: MarkL on 2018-03-06 06:24:13
I got it, just to check if there are LBRR frames in the package, right? Really appreciate your help!
Title: Re: how to check opus encode frame has FEC
Post by: lithopsian on 2018-03-06 18:00:15
I can't guarantee, but yes so far as I know the LBRR frames are the only way that forward error correction is encoded.
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