I would use three pieces of hardware for this task.
A recording laptop.
A device that allows you to input the HDMI to the recording laptop, aka, a frame grabber.
An HDMI spliter.
A recording laptop
Any old laptop will do, really. It doesn't need super specs, like dedicated graphics, but you certainly want at least a mid-range machine. Like an Intel i5 or ...
I hate to burst your bubble, but if you are expecting video to be a similar level of intrusiveness to photography, you are almost certainly mistaken. Video is a much more work intensive process as it requires constant attention to make sure you are getting smooth usable shots instead of the occasional random thought that "I'd like a photo of this." It is ...
What software are you using to capture? The camera won't just show up in Windows. Firewire is used to control playback of the device and the video stream is relayed over firewire, but you need a client program that is capable of controlling and capturing the footage sent over the line. It isn't the same as something like USB where you just copy files off.
If your actually looking to produce a single image from a number of temporally-local frames, then your probably looking at doing some kind of superresolution or drizzle integration. There are tools that do this. I use them for astrophotography myself, such as Registax and AutoStakkert!! 2. These are designed to generate astronomy images, such as planets, ...
You can do this with Processing. You would have to write a processing sketch to step through the movie frame-by-frame, and calculate how different each was from the previous frame. When the difference is above a certain threshold, save the whole frame as an image file. Here is a forum post about something very similar.
Other than processing, you may ...
This is really going to depend on the quality of your camera and the quality of your VCR. In general, the circuitry that is used to digitize an analog signal has grown by leaps and bounds in the past 10 to 15 years, but also VHS tapes and VCRs produce limited quality to begin with. For maximum quality you will certainly want something with an S-Video ...
I have no practical experience, but you might take a look at using a (linux) computer with blackmagic decklink or intensity pro card.
There are command line tools like bmdtools which (should) allow you to interface the capture card.
You could then pipe the video input to ffmpeg to record.
I don't know of a setting to ...
I did this a few years ago, digitized dozens of my family's old home videos.
The way I did it was, as at the time I was doing it from home and didn't have a IO device such as a DeckLink, I simply used a MiniDV Portable Recorder I got off eBay; which allows composite, component, and S-Video In.
Once the VHS tapes were transferred to my "Digital ...
As you know there are two solutions, one using your CPU, the other a dedicated GPU.
As of today, the CPU solution exit for 4K content, at 60 fps, using x265 or x264 codec. x264 is embededded in OBS in fact, and x264/x265 are known for being the fastest implementation of the standard H264/H265. But, you need a powerful CPU, of course, and then ...
Download virtualdub and try to open in it. Try select "direct stream copy" and save new file. AVI container very easy to fix.
If you using h264 codec inside, you can try to use my tool https://github.com/bookkojot/mp4fixer
Turns out the answer is yes. Such format is called CinemaDNG and is used for professional video production since 2009.
Here's the spec for the format: http://download.macromedia.com/pub/labs/cinemadng/cinemadng_p1_spec_091009.pdf
Among other things it supports:
Integer sensor values of any bit depth from 8 to 32 bits
Arbitrary size color filter arrays ...
Uncompressed Prores HQ at 10 bit will yield extremely large file sizes. Is there a reason you want prores? 4K 444 10bit uncompressed would be, in my opinion, better captured as an uncompressed AVI "true uncompressed". Or, if your decklink allows it; Uncompressed MOV using the animation codec with Alpha turned off, only RGB.
Also; you may want to use 2 SSDs ...
By late 2018, the category "HDMI recorder" (#2 of your 3 questions) has become a commodity. Passthrough is taken for granted. Online retailers and auction websites have dozens of models for around USD 100, with new clones appearing every month at half that price.
This should work:
Hauppauge HD Personal Video Recorder 2 Gaming Edition
The HD Personal Video Recorder 2 Gaming Edition from Hauppauge! allows
you to record gameplay from your preferred gaming console in Full HD
1080p video. With HDMI input and output ports as well a component
video input port, this personal video recorder supports the ...
Your issue is probably that you don't have enough USB bandwidth available, if your webcams support it switch to MJPEG instead of uncompressed frames. Usually any webcam supports MJPEG encoding to deliver frames to your PC.
Here a similar question on SO https://stackoverflow.com/questions/9781770/capturing-multiple-webcams-uvcvideo-with-opencv-on-linux
There is no right or wrong answer here. I've done both before for projects of your scale. There are factors that work in favor of both.
For recording whole tapes while you take notes by hand, the pros are:
Least amount of calendar time to capture and edit.
Requires detailed viewing and review of footage, which may catch issues earlier....
I think the best tool for manual logging is Adobe Prelude. I'm not to deep into Prelude. But I guess as it is also integrated with Premiere you might capture your footage directly to Prelude and add keywords and marks there. Prelude is build to work completely with the keyboard, so you can go through the footage very fast. I guess this might be the best way ...
There isn't an easy answer here. It depends on a lot of factors. If you have constant timecode on each tape then you can batch log. Batch logging allows you to go through abs document clips prior to capture and the run captures simply by running tapes.
If you don't have consistent time code then that option goes out the window as batch capture gets ...
OpenDML is just a slight difference in the internal arrangement of an AVI file allowing it to go beyond the 2GB limit and supports a few other new features. It shouldn't have any particular impact on the data within the file, though I'm unsure why one file was stored that way and the other was not. Perhaps the software you were using only includes the ...