[FFmpeg-user] how to "play" uncompressed video across an network?

Donald McLachlan Donald.McLachlan at crc.ca
Tue Feb 21 19:13:46 CET 2012

On 21/02/2012 12:28 PM, Thomas Worth wrote:
>> Worry first about your network infrastructure. Back of the envelope
>> calculation: assuming you're talking about a 4096-wide 16:9 image, that'll
>> be 1940 pixels high, and even at 8-bit, each frame will weigh in at the best
>> part of 23MB, without any sort of format overhead or audio taken into
>> account. That's nearly 600MB a second, which is about half the theoretical
>> total bandwidth of your 10 gig network. Certainly you won't be doing more
>> than one stream at once.
>> Within that you can use anything that will allow you to remote access the
>> file - although I'd be interested to see if most samba implementations could
>> keep up!
Hi Thomas,

> I believe this is usually done with a SAN via iSCSI, in the case of
> Ethernet. You'd basically be accessing the host as a block device
> rather than through an NFS or Samba server. Streaming 4K uncompressed
> video over a Samba network sounds like massive amounts of pain waiting
> to happen.
> Also, I wouldn't be playing the video in MPlayer. I'd be sending raw
> RGB to a SDI output device so I could watch the result on a proper
> calibrated display / projector. That's typically how it'd be done in a
> proper post facility.
We'd love a 4k or 8k display (or even projector), but for now what we 
have is a SAGE wall.

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