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I have this MJPEG stream. When I open it with VLC or with Chrome, it works perfectly, and in both cases the stream starts instantly (or atleast within one second). However, with MPlayer, I get this message about 1000 times: Cache not filling, consider increasing -cache and/or -cache-min! ... and then, years later, I might get a stream.

With OpenCV and its captureFromFile, it times out on the analyze duration, but then I get an erratic and lagged stream.

What makes VLC and Chrome succeed here, while MPlayer and OpenCV fail horribly? I tried running VLC with -v, but there is no telling what it does from that.

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Different CODECs? – Ƭᴇcʜιᴇ007 Apr 3 '13 at 19:39

VLC has all the CODEC embeded and does not share them with the OS. MPlayer and others rely on CODEC that the OS has.

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Is there a way of outputting whta CODEC VLC uses? – Christian Jonassen Apr 3 '13 at 23:38
I found it, but MPlayer gets the cache failure (and the long startup delay) no matter what settings I use. – Christian Jonassen Apr 3 '13 at 23:55
@cybernard: What about Chrome? – Karan Apr 4 '13 at 14:48

Try to increase the cache value -cache=4096 for example... also try to inrease the -cache-min=80 (increase by 80%)

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Can you explain why this is a solution. – ChrisF Sep 22 '13 at 11:36

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