802.11ac means wifi editing?

[sdsumike619]

http://www.videomaker.com/videonews/2013/06/80211ac-wi-fi-unplug-your-video-editing-computer

Thoughts on this article? I'd like to set up a NAS tucked away hidden somewhere and do my AVCHD to H.264 editing wirelessly. Is anyone doing this and how is it working out?

[TreeTops]

That article is a couple of years old and I haven't seen or heard of anyone editing videos using wireless. I don't know of any editing program that is optimized to edit videos using Wifi unless you consider some programs that let you upload your videos to the cloud and you edit them there from your computer. But that isn't fun either as it takes lots of time to upload your video then download it when finished and who knows who is watching what you do on the cloud end.

[sdsumike619]

Right but I'm not talking about the internet cloud, I'm talking about a personal cloud, i.e. in my home. The drive in the NAS would be where my video files, and NLE project files would be stored.

[TreeTops]

OK, using a wifi hard drive may work. It would be interesting to hear from someone that has done that and what kind of video was used.

[sdsumike619]

Well no, not a "wifi hard drive" Those do exist too, but I'm talking about a dedicated NAS with a wifi adapter attached, or a wireless access point, but using the 802.11ac standard (adapter on NAS, Router and adapter on the editing machine)

[pandy]

Thoughts on this article?

At first she is

is an independent writer and video enthusiast.

at second it will not work - as a HW test engineer frequently see how WLAN marketing hype is far from physical reality...

Simple arithmetic shows truth - 1920x1080x60x3x8= almost 3Gbps - if you can provide this kind of bitrate bidirectionally (so almost 6Gbps) without disturbance in real time for a long time then perhaps you can do video editing

[sdsumike619]

How did you come up with 1920x1080x60x3x8 to determine the bitrate needed?

[pandy]

How did you come up with 1920x1080x60x3x8 to determine the bitrate needed?

Not sure about your question - 1920x1080x60x3x8 - looks kind of obvious to me - 1920 pixels width, 1080 lines, 60 frames per second (not important if source is interlaced 30i or native progressive 60p), 3 bytes as you have 3 components per pixel (YCbCr or RGB) and 8 as byte have 8 bits - this will provide us bitrate as you need to read and write then you need twice bandwidth (WLAN can't transmit and receive at the same time). You can add 10 or 12 bits per component or imagine increasing resolution to 4k (ie 4 times higher bitrate than HD) - all this made video processing over wireless not technically feasible IMHO. Even cable can be difficult (6 - 20Gbps link required)
- also mass storage must be capable to provide sufficient performance... all this it is not trivial and usually maximum performance can be delivered by WLAN only in limited environment.

[sdsumike619]

Alright, you convinced me, that idea is out the door
Thanks

[_Al_]

I'd say video is being loaded with bitrate as is, not uncompressed or something, each frame is being "uncompressed/processed" while processing , not before transport. Vegas does not create 3Gbps traffic for 1920x1080 video from hardisk either.

Not saying editing over wi-fi would work or not. Just tested to edit some HDV video over LAN though and it works (simple test). Using Vegas one has to permit writing on that storage, because Vegas "builds a peaks" as it calls creating waveform for audio. So perhaps even choosing better or more suitable videoeditor for this is kind of important as well.

[pandy]

I'd say video is being loaded with bitrate as is, not uncompressed or something, each frame is being "uncompressed/processed" while processing , not before transport. Vegas does not create 3Gbps traffic for 1920x1080 video from hardisk either.

Not saying editing over wi-fi would work or not. Just tested to edit some HDV video over LAN though and it works (simple test). Using Vegas one has to permit writing on that storage, because Vegas "builds a peaks" as it calls creating waveform for audio. So perhaps even choosing better or more suitable videoeditor for this is kind of important as well.

Well... if you can accept such limitations then yes, you can perform some limited video editing but overall video quality will be quite low...
If you think about serious/proper video editing then even with pro Intra codecs your bitrate will be substantially higher than hundreds of megabits (assuming fixed bitrate reduction with factor somewhere between 4 and 8). Still going to 1Gbe is IMHO cheaper, better and more reliable.