[FFmpeg-user] Anyone having success capturing hours of 4k video, reliably and with low loss, using ffmpeg?

[Roger Pack]

On Tue, Aug 7, 2018 at 3:15 PM, Gabriel Balaich <roderrooder at gmail.com> wrote:
>>
>> You are missing the question.
>>
>> I am not asking for help to diagnose that simple experiment. I am asking
>> if others have had experience with the top-level goal: capturing hours
>> of 4k video, reliably and with low loss, using ffmpeg.
>>
>> I can use whatever capture card, operating system, CPU, and graphics
>> card are necessary to build a system that works, and costs less than
>> what Vendor A would charge us for their closed system.
>>
>
> I capture 4K60 and 1080P60 simultaneously using one instance of FFmpeg
> with no artifacting (ever) or perceivable loss in quality for 7-8 hours at
> a time
> consistently.
>
> No crazy hardware - a few capture cards (HD60 Pro + Magewell Pro Capture
> HDMI 4K Plus), 6800K, 16GB of RAM, GTX 1050 (handles encoding), and
> an Intel 600P NVME SSD for storage.

Nice.  What codec and/or command line?

Also if anybody's desperate for a "software" solution I might be able
to provide a new video codec that "uses a lot of space but is
screaming fast" let me know if x264 ultrafast isn't fast enough.
Cheers!