Did you try using the -compression_level flag? It takes an int from 0-100 afaik (maybe the range is even higher, the docs just say "int").
That should set a lossy compression strength.
There is also an interesting blog post about creating DCI compilant JPEG2000 encodes with FFMPEG for DCP's. Which require lossy encoded JPEG2000.
If no frames are dupped or dropped, then those fields are not printed.
If you need a definitive statement, add -progress filename to print progress report to a file and search for dup_frames and drop_frames.
It honestly looks like something got corrupted with your export. Have you tried encoding it more than once? 12 megabits per second with a 24mpbs peak should be more than sufficient for high quality 1080p video. If anything, it may be excessive. The quality you are getting looks more like what I'd expect at sub-1 mbps video for this quality level. As an ...
I have not ever heard of a TV that has this feature (I have encountered a few). Some high-end monitors have this, it's called Display Port daisy-chaining. As the name implies, it uses DisplayPort and not HDMI. It's quite a hack; but, I think that your cheapest option would be to put a camera outside the booth looking back at the screen. Amazon has some ...
to get the best quality export from FCPX choose the option from the CODEC "Source = ProRes 422" and then see if that gives you any better results.
Alternatively you can choose the option
Format = Computer then export from there
Since the resulting projected image is 3240 px wide, that's the size you should create. Then output two "halves" -- the leftmost 1920 px, then the rightmost 1920 px. There will be 600 px that appear in both parts. That's the overlap.
I think the Adobe article you linked to spells it out pretty well, especially with respect to the "7 second rule". I think you're just panning too fast.
Fast pans don't like sharp lines that run counter to the pan's motion. If you absolutely must pan at that speed, you'll need to reduce detail (ie, contrasty edges) during the fast pans.
So for starters, I ...
Assuming it has been encoded with x264, download the file and run:
strings input | grep x264
It may output encoding information such as:
x264 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 -
http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0
analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16
You need to edit it using an editing software like Premimere, Sony Vegas or any other.
I don't know how you do it in Sony Vegas but in Premiere you just place both videos in the sequence and resize them.
That's pretty basic editing, try to search for the best editing software that works best for you and search for tutorial about that software.
If you need ...
There isn't an "affordable" option here. Either you use high intensity light screens or high intensity rear projection with an enclosure around the back side to keep out sunlight. Either option is looking at tens of thousands of dollars per screen to buy.
I'm not particularly familiar with light screens because they tend to be a lot harder to move than ...
"Most affordable" makes this a very difficult question to answer. The way most festivals do it is by hiring large screens. You could try and do it with a projector, which can work okay at night, but not so good in daylight (like a drive-in cinema).
For bright displays there aren't really any shortcuts -
Have a good video platform and desk