[FFmpeg-user] YouTube VP9 vids play in VLC, but ffmpeg VP9 vids won't. Why?

[ogrgkyle]

So I have downloaded a VP9 WEBM video from YouTube.  The file plays in VLC. 
Now I'm trying to encode a VP9 WEBM using ffmpeg and libvpx-vp9.  I have
carefully looked at a couple good guides (from the ffmpeg and WEBM sites),
but no matter what I've tried so far, I cannot encode a video that will play
in VLC.  Only the audio will play.  I have a recent build of ffmpeg.

(For what it's worth, the video does play in Firefox, but not Chrome.)

I'm not asking a question so much about VLC (this isn't the place for that)
as I am about how to encode a VP9/WEBM video exactly the way YouTube does
it.  Any suggestions?  Thanks.



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