[confluence] add missing video codec flags

[un1versal]

@da-anda @ronie this is isengard safe.

Klojum at IRC mentioned (yesterday) that hev1 didnt have a codec flag, someone else from my generation had mentioned also that windows media video files also dont have codec flags,
This should cure both and has been tested.

[da-anda]

HEV1? I only know h265 as HEVC and a quick google search also didn't give much info about HEV1. So is HEV1 correct?

[phil65]

yes, seems to exist, but I dont think we have to show that term to the user. Just using the default H265 image would be nicer imo.

[un1versal]

Mentions hev1 https://ffmpeg.org/pipermail/ffmpeg-cvslog/2014-March/074993.html some explanations http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ea3309eba715e83027e8ece4a226e39a4bf2a6ce

edit iso standards mention hev1 and hvc1 also both are different parameters/restrictions

I see no issue with making the distinction since some distinction clearly exists however technical has no harm showing imo, but I dont have a preference.

[da-anda]

I leave it up to the codec guys if they think we have to differ between HEVC and HEV1. To me it doesn't add any value and I also believe the media flags should not go into too much details, so also using the HEVC icon whould be fine for me.

[un1versal]

Yes I agree, its HEVC, HEV1, HVC1 so I think the default copy is best.

[MartijnKaijser]

ok for me. objections?

[da-anda]

nope