Chrome device simulator: some streams trigger append errors some not

[video-dev]

Chrome device simulator: some streams trigger append errors some not

[phloxic]

At least where the Chrome simulator is concerned it looks like high profile AAC (mp4a.40.5) is the problem, AAC_LC (mp4a.40.2) works:

• http://dailymotion.github.io/hls.js/demo/?src=http%3A%2F%2Fd12zt1n3pd4xhr.cloudfront.net%2Ffp%2Fenc%2Fccc_trailer1-aaclc.m3u8 works
• http://dailymotion.github.io/hls.js/demo/?src=http%3A%2F%2Fd12zt1n3pd4xhr.cloudfront.net%2Fccc_trailer1.m3u8 (AAC_HE) does not

My first reaction would be that it is the Android bug where mp4a.40.5 is not properly evaluated - https://chromium.googlesource.com/chromium/src.git/+/0b5ec458acf03e3507a3737cfc483df0694cf803%5E!/ - but as Dash with AAC_HE works I'm mystified.

[mangui]

your 3 streams are working fine on a real android device (Asus Zenfone2, running Chrome 46.0.2490.76 on Android 5.0)
I am not willing to investigate Chrome simulator ...

[mangui]

but this Chrome simulator issue is somewhat expected, see how audio codec is handled here, it is quite a mess ...
https://github.com/dailymotion/hls.js/blob/master/src/demux/tsdemuxer.js#L515-L539

I guess Chrome simulator is tweaking the UA, but not the underlying audio decoding stack, which is different on Desktop and Android.

closing as won't be fixed

[phloxic]

Yes. There is only a problem with our plugin. Except for Android 4.4.4 Motorola where the sample player gives the frag append error, and regardless of AAC profile.